Cisco ONS 15454 Reference Manual, Release 3.3
Chapter 3, Electrical Cards and Cable

Table Of Contents

Electrical Cards and Cable

3.1 Electrical Card Warnings

3.2 EC1-12 Card

3.2.1 EC1-12 Slots and Connectors

3.2.2 EC1-12 Faceplate and Block Diagram

3.2.3 EC1-12 Hosted by XCVT

3.2.4 EC1-12 Card-Level Indicators

3.2.5 EC1-12 Port-Level Indicators

3.2.6 EC1-12 Specifications

3.3 DS1-14 and DS1N-14 Cards

3.3.1 DS1N-14 Features and Functions

3.3.2 DS1-14 and DS1N-14 Slots and Connectors

3.3.3 DS1-14 and DS1N-14 Faceplate and Block Diagram

3.3.4 DS1-14 and DS1N-14 Hosted by the Cross-Connect

3.3.5 DS1-14 and DS1N-14 Card-Level Indicators

3.3.6 DS1-14 and DS1N-14 Port-Level Indicators

3.3.7 DS1-14 and DS1N-14 Specifications

3.4 DS3-12 and DS3N-12 Cards

3.4.1 DS3N-12 Features and Functions

3.4.2 DS3-12 and DS3N-12 Slots and Connectors

3.4.3 DS3-12 and DS3N-12 Faceplate and Block Diagram

3.4.4 DS3-12 and DS3N-12 Card-Level Indicators

3.4.5 DS3-12 and DS3N-12 Port-Level Indicators

3.4.6 DS3-12 and DS3N-12 Specifications

3.5 DS3-12E and DS3N-12E Cards

3.5.1 DS3N-12E Features and Functions

3.5.2 DS3-12E and DS3N-12E Slots and Connectors

3.5.3 Faceplate and Block Diagram

3.5.4 DS3-12E and DS3N-12E Card-Level Indicators

3.5.5 DS3-12E and DS3N-12E Port-Level Indicators

3.5.6 DS3-12E and DS3N-12E Specifications

3.6 DS3XM-6 Card

3.6.1 DS3XM-6 Slots and Connectors

3.6.2 DS3XM-6 Faceplate and Block Diagram

3.6.3 DS3XM-6 Hosted By XCVT

3.6.4 DS3XM-6 Card-Level Indicators

3.6.5 DS3XM-6 Port-Level Indicators

3.6.6 DS3XM-6 Specifications

3.7 Electrical Card Comparisons

3.8 Electrical Interface Assemblies

3.8.1 BNC EIA

3.8.2 High-Density BNC EIA

3.8.3 SMB EIA

3.8.4 AMP Champ EIA

3.8.5 EIA Replacement

3.9 Coaxial Cable

3.10 DS-1 Cable

3.10.1 Twisted Pair Wire-Wrap Cables

3.10.2 Electrical Interface Adapters

3.11 Cable Routing and Management

3.11.1 Coaxial Cable Management

3.11.2 DS-1 Twisted-Pair Cable Management

3.11.3 AMP Champ Cable Management


Electrical Cards and Cable


This chapter describes Cisco ONS 15454 electrical card features and functions. For installation and card turn-up procedures, refer to the Cisco ONS 15454 Procedure Guide.

Chapter topics include:

Electrical Card Warnings

EC1-12 Card

DS1-14 and DS1N-14 Cards

DS3-12 and DS3N-12 Cards

DS3-12E and DS3N-12E Cards

DS3XM-6 Card

Electrical Card Comparisons

Electrical Interface Assemblies

Coaxial Cable

DS-1 Cable

Cable Routing and Management

3.1 Electrical Card Warnings


Warning Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.



Caution When working with cards, wear the supplied ESD wristband to avoid ESD damage to the card. Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.


Note Each card is marked with a symbol that corresponds to a slot (or slots) on the ONS 15454 shelf assembly. The cards are then installed into slots displaying the same symbols. See the "Card Slot Requirements" section on page 1-20 for a list of slots and symbols.


3.2 EC1-12 Card

The EC1-12 card provides 12 Telcordia-compliant, GR-253 STS-1 electrical ports per card. Each port operates at 51.840 Mbps over a single 75 ohm 728A or equivalent coaxial span.

STS path selection for UNEQ-P, AIS-P, and bit error rate (BER) thresholds is done on the SONET ring interfaces (optical cards) in conjunction with the STS cross-connect. The EC1-12 terminates but does not select the 12 working STS-1 signals from the backplane. The EC1-12 maps each of the 12 received EC1 signals into 12 STS-1s with visibility into the SONET path overhead.

An EC1-12 card can be 1:1 protected with another EC1-12 card but cannot protect more than one EC1-12 card. You must install the EC1-12 in an even-numbered slot to serve as a working card and in an odd-numbered slot to serve as a protect card.

3.2.1 EC1-12 Slots and Connectors

You can install the EC1-12 card in any multispeed or high-speed card slot on the ONS 15454. Each EC1-12 interface features DSX-level (digital signal cross-connect frame) outputs supporting distances up to 450 feet depending on facility conditions.

3.2.2 EC1-12 Faceplate and Block Diagram

Figure 3-1 shows the EC1-12 faceplate and a block diagram of the card.

Figure 3-1 EC1-12 faceplate and block diagram

3.2.3 EC1-12 Hosted by XCVT

All 14 VT1.5 payloads from a EC1-12 card are carried in a single STS-1 to the XC or XCVT card where the payload is further aggregated for efficient STS-1 transport. XCVT cards host a maximum of 336 bidirectional VT1.5s.

3.2.4 EC1-12 Card-Level Indicators

The EC1-12 card faceplate has three card-level LEDs.

Table 3-1 EC1-12 Card-Level Indicators  

Card-Level Indicators
Description
Red FAIL LED

The red FAIL LED signifies that the EC1-12 card's processor is not ready. Replace the unit if the FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the EC1-12 card is operational and ready to carry traffic.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as loss of signal (LOS), loss of frame (LOF) or high bit error rate (BER) on one or more of the card's ports.


3.2.5 EC1-12 Port-Level Indicators

You can obtain the status of the EC1-12 card ports using the LCD screen on the ONS 15454 fan-tray. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot. See Alarm Troubleshooting for a complete description of the alarm messages.

3.2.6 EC1-12 Specifications

The EC1-12 card specifications are shown in Table 3-2.

Table 3-2 EC1-12 Card Specifications 

Specification Type
Description
EC1-12 Input

Bit Rate: 51.84 Mbps +/- 20 ppm

Frame Format: SONET

Line Code: B3ZS

Termination: Unbalanced coaxial cable

Input Impedance: 75 ohms +/-5%

Cable Loss: Max 450 ft. 734A, RG-59, 728A/Max 79 ft. RG-179

AIS: TR-TSY-000191-compliant

EC1-12 Output

Bit Rate: 51.84 Mbps +/- 20 ppm

Frame Format: SONET

Line Code: B3ZS

Termination: Unbalanced coaxial cable

Input Impedance: 75 ohms +/-5%

Cable Loss: Max 450 ft. 734A, RG-59, 728A/Max 79 ft. RG-179

AIS: TR-TSY-000191-compliant

Power Level: -1.8 - +5.7 dBm

Pulse Shape: ANSI T1.102-1988 Figure 8

Pulse Amplitude: 0.36 - 0.85 V peak to peak

Loopback Modes: Terminal and Facility

Line Build Out: 0-225 ft.; 226-450 ft.

EC1-12 Electrical Interface

Connectors: BNC or SMB

Operating Temperature

C-Temp (15454-EC1-12): 0 to +55 degrees Celsius

I-Temp (15454-EC1-12-T): -40 to +65 degrees Celsius

Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card without this symbol is C-Temp compliant.

Operating Humidity

5 - 95%, non-condensing

Power Consumption

36.60 W, 0.76 amps, 124.97 BTU/Hr.

Dimensions

Height: 12.650 in.

Width: 0.716 in.

Depth: 9.000 in.

Card Weight: 2.0 lbs, 0.9 kg

Compliance

ONS 15454 cards, when installed in a system, comply with these standards: Safety: UL 1950, CSA C22.2 No. 950, EN 60950, IEC 60950


3.3 DS1-14 and DS1N-14 Cards

The ONS 15454 DS1-14 card provides 14 Telcordia-compliant, GR-499 DS-1 ports. Each port operates at 1.544 Mbps over a 100 ohm twisted-pair copper cable. The DS1-14 card can function as a working or protect card in 1:1 protection schemes and as a working card in 1:N protection schemes.

The DS1-14 card supports 1:1 protection. The DS1-14 can be a working card in a 1:N protection scheme with the proper backplane EIA and wire-wrap or AMP Champ connectors. You can also provision the DS1-14 to monitor for line and frame errors in both directions.

You can group and map DS1-14 card traffic in STS-1 increments to any other card in an ONS 15454 except DS-3 cards. Each DS-1 is asynchronously mapped into a SONET VT1.5 payload and the card carries a DS-1 payload intact in a VT1.5. For performance monitoring purposes, you can gather bidirectional DS-1 frame-level information (loss of frame, parity errors, cyclic redundancy check [CRC] errors, etc.).

3.3.1 DS1N-14 Features and Functions

The DS1N-14 card supports the same features as the DS1-14 card in addition to enhanced protection schemes. The DS1N-14 is capable of 1:N (N<5) protection with the proper backplane EIA and wire-wrap or AMP Champ connectors. The DS1N-14 card can function as a working or protect card in 1:1 or 1:N protection schemes.

3.3.2 DS1-14 and DS1N-14 Slots and Connectors

DS1-14

You can install the DS1-14 card in any multispeed or high-speed card slot on the ONS 15454. Each DS1-14 port has DSX-level (digital signal cross-connect frame) outputs supporting distances up to 655 feet.

DS1N-14

If you use the DS1N-14 as a standard DS-1 card in a 1:1 protection group, you can install the DS1N-14 card in any multispeed or high-speed card slot on the ONS 15454. If you use the card's 1:N functionality, you must install a DS1N-14 card in Slots 3 and 15. Each DS1N-14 port features DSX-level outputs supporting distances up to 655 feet depending on facility conditions.

3.3.3 DS1-14 and DS1N-14 Faceplate and Block Diagram

Figure 3-2 shows the DS1-14 and DS1N-14 faceplates and block diagrams of the cards.

Figure 3-2 DS1-14 faceplate and block diagram

Figure 3-3 shows the DS1N-14 faceplate and a block diagram of the card.

Figure 3-3 DS1N-14 faceplate and block diagram

3.3.4 DS1-14 and DS1N-14 Hosted by the Cross-Connect

All 14 VT1.5 payloads from a DS1-14 card are carried in a single STS-1 to the XCVT or XC10G card where the payload is further aggregated for efficient STS-1 transport. The XC10G and XCVT cards manage up to 336 bidirectional VT1.5 ports.

3.3.5 DS1-14 and DS1N-14 Card-Level Indicators

The DS1-14 and DS1N-14 card faceplate has three LEDs shown in Table 3-3.

Table 3-3 DS1-14 and DS1N-14 Card-Level Indicators 

Card-Level Indicators
Description
Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready. Replace the card if the red FAIL LED persists.

ACT/STBY LED
Green (Active)
Amber (Standby)

The green/amber ACT/STBY LED indicates whether the DS1-14 card is operational and ready to carry traffic (green) or in standby mode (amber).

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS, LOF or high BERs on one or more of the card's ports.


3.3.6 DS1-14 and DS1N-14 Port-Level Indicators

You can obtain the status of the DS1-14 and DS1N-14 card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot. See Alarm Troubleshooting for a complete description of the alarm messages.

3.3.7 DS1-14 and DS1N-14 Specifications

The DS1-14 and DS1N-14 card specifications are shown in Table 3-4.

Table 3-4 DS1-14 and DS1N-14 Card Specifications 

Specification Type
Description
DS1-14/DS1N-14 Input

Bit Rate: 1.544 Mbps +/- 32 ppm

Frame Format: Off, SF (D4), ESF

Line Code: AMI, B8ZS

Termination: Wire-wrap, AMP Champ

Input Impedance:100 ohms

Cable Loss: Max 655 ft. ABAM #22 AWG

AIS: TR-TSY-000191-compliant

DS1-14/DS1N-14 Output

Bit Rate: 1.544 Mbps +/- 32 ppm

Frame Format: Off, SF (D4), ESF

Line Code: AMI, B8ZS

Termination: Wire-wrap, AMP Champ

Input Impedance:100 ohms

Cable Loss: Max 655 ft. ABAM #22 AWG

AIS: TR-TSY-000191-compliant

Power Level: 12.5 to 17.9 dBm centered @ 772 KHz, -16.4 to -11.1 dBm centered at 1544 KHz

Pulse Shape: GR-499-CORE Figure 9-5

Pulse Amplitude: 2.4- 3.6 V peak-to-peak

Loopback Modes: Terminal and Facility

DS1-14/DS1N-14 Electrical Interface

Connectors: BNC or SMB

Surge Protection

GR-1089

Operating Temperature

C-Temp (15454-DS1-14 and 15454-DS1N-14): 0 to +55 degrees Celsius

I-Temp (15454-DS1-14-T and 15454-DS1N-14-T): -40 to +65 degrees Celsius

Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card without this symbol is C-Temp compliant.

Operating Humidity

5 - 95%, non-condensing

Power Consumption

12.60 W, 0.26 amps, 43.02 BTU/Hr.

Dimensions

Height: 12.650 in.

Width: 0.716 in.

Depth: 9.000 in.

Card Weight: 1.8 lbs, 0.8 kg

Compliance

ONS 15454 cards, when installed in a system, comply with these standards: Safety: UL 1950, CSA C22.2 No. 950, EN 60950, IEC 60950


3.4 DS3-12 and DS3N-12 Cards

The ONS 15454 DS3-12 card provides 12 Telcordia-compliant, GR-499 DS-3 ports per card. Each port operates at 44.736 Mbps over a single 75 ohm 728A or equivalent coaxial span. The DS3-12 card operates as a working or protect card in 1:1 protection schemes and as a working card in 1:N protection schemes.

The DS3-12 card supports 1:1 protection with the proper backplane EIA. EIAs are available with BNC or SMB connectors.


Caution When a protection switch moves traffic from the DS3-12 working/active card to the DS3-12 protect/standby card, ports on the now active/standby card cannot be taken out of service. Lost traffic can result if you take a port out of service even if the DS3-12 standby card no longer carries traffic.

3.4.1 DS3N-12 Features and Functions

Other than the protection capabilities, the DS3-12 and DS3N-12 cards are identical. The DS3N-12 can operate as the protect card in a 1:N (N<5) DS-3 protection group. It has additional circuitry not present on the basic DS3-12 card that allows it to protect up to five working DS3-12 cards. The basic DS3-12 card can only function as the protect card for one other DS3-12 card.

3.4.2 DS3-12 and DS3N-12 Slots and Connectors

You can install the DS3-12 or DS3N-12 card in any multispeed or high-speed card slot on the ONS 15454. Each DS3-12 or DS3N-12 card port features DSX-level outputs supporting distances up to 450 feet depending on facility conditions. With the proper backplane EIA, the card supports BNC or SMB connectors.

3.4.3 DS3-12 and DS3N-12 Faceplate and Block Diagram

Figure 3-4 shows the DS3-12 faceplates, and a block diagram of the card.

Figure 3-4 DS3-12 faceplate and block diagram

Figure 3-5 shows the DS3N-12 faceplate and a diagram of the card.

Figure 3-5 DS3N-12 faceplate and block diagram

3.4.4 DS3-12 and DS3N-12 Card-Level Indicators

The DS3-12 and DS3N-12 card faceplates have three LEDs shown in Table 3-5.

Table 3-5 DS3-12 and DS3N-12 Card-Level Indicators  

Card-Level Indicators
Description
Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready. Replace the card if the red FAIL LED persists.

ACT/STBY LED
Green (Active)
Amber (Standby)

When the ACTV/STBY LED is green, the DS3-12 card is operational and ready to carry traffic. When the ACTV/STBY LED is amber, the DS3-12 card is operational and in standby (protect) mode.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as port LOS.


3.4.5 DS3-12 and DS3N-12 Port-Level Indicators

You can find the status of the 12 DS3-12 and 12 DS3N-12 card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot. See Alarm Troubleshooting for a complete description of the alarm messages.

3.4.6 DS3-12 and DS3N-12 Specifications

The DS3-12 and DS3N-12 card specifications are shown in Table 3-6.

Table 3-6 DS3-12 and DS3N-12 Card Specifications 

Specification Type
Description
DS3-12/DS3N-12 Input

Bit Rate: 44.736 Mbps +/- 20 ppm

Frame Format: DS-3 ANSI T1.107-1988

Line Code: B3ZS

Termination: Unbalanced coaxial cable

Input Impedance: 75 ohms +/-5%

Cable Loss: Max 450 ft. 734A, RG-59, 728A/Max 79 ft. RG-179

AIS: TR-TSY-000191-compliant

DS3-12/DS3N-12 Output

Bit Rate: 44.736 Mbps +/- 20 ppm

Frame Format: DS-3 ANSI T1.107-1988

Line Code: B3ZS

Termination: Unbalanced coaxial cable

Input Impedance: 75 ohms +/-5%

Cable Loss: Max 450 ft. 734A, RG-59, 728A/Max 79 ft. RG-179

AIS: TR-TSY-000191-compliant

Power Level: -1.8 - +5.7 dBm

Pulse Shape: ANSI T1.102-1988 Figure 8

Pulse Amplitude: 0.36 - 0.85 V peak-to-peak

Loopback Modes: Terminal and Facility

Line Build Out: 0-225 ft.; 226-450 ft.

DS3-12/DS3N-12 Electrical Interface

Connectors: BNC or SMB

Surge Protection

GR-1089

Operating Temperature

C-Temp (15454-DS3-12 and 15454-DS3N-12): 0 to +55 degrees Celsius

I-Temp (15454-DS3-12-T and 15454-DS3N-12-T): -40 to +65 degrees Celsius

Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card without this symbol is C-Temp compliant.

Operating Humidity

5 - 95%, non-condensing

Power Consumption

38.20 W, 0.79 amps, 130.43 BTU/Hr.

Dimensions

Height: 12.650 in.

Width: 0.716 in.

Depth: 9.000 in.

DS3-12: Card Weight: 1.7 lbs, 0.7 kg

DS3N-12: Card Weight: 1.8 lbs, 0.8 kg

Compliance

ONS 15454 cards, when installed in a system, comply with these standards: Safety: UL 1950, CSA C22.2 No. 950, EN 60950, IEC 60950


3.5 DS3-12E and DS3N-12E Cards

The ONS 15454 DS3-12E card provides 12 Telcordia-compliant ports per card. Each port operates at 44.736 Mbps over a single 75 ohm 728A or equivalent coaxial span. The DS3-12E card provides enhanced performance monitoring functions. The DS3-12E can detect several different errored logic bits within a DS-3 frame. This function allows the ONS 15454 to identify a degrading DS-3 facility caused by upstream electronics (DS-3 Framer). In addition, DS3 frame format auto detection and J1 path trace are supported. By monitoring additional overhead in the DS-3 frame, subtle network degradations can be detected.

The following list summarizes DS3-12E card features:

Provisionable framing format M23, C-bit or unframed

Autorecognition and provisioning of incoming framing

P-bit monitoring

C-bit parity monitoring

X-bit monitoring

M-bit monitoring

F-bit monitoring

Far-end block errors (FEBE) monitoring

Far-end alarm and control (FEAC) status and loop code detection

Path trace byte support with TIM-P alarm generation

The DS3-12E supports a 1:1 protection scheme, meaning it can operate as the protect card for one other DS3-12E card.

3.5.1 DS3N-12E Features and Functions

The DS3N-12E can operate as the protect card in a 1:N (N<5) DS-3 protection group. It has additional circuitry not present on the basic DS3-12E card that allows it to protect up to five working DS3-12E cards. The basic DS3-12E card can only function as the protect card for one other DS3-12E card.

3.5.2 DS3-12E and DS3N-12E Slots and Connectors

You can install the DS3-12E and DS3N-12E cards in any multispeed or high-speed card slot on the ONS 15454. Each DS3-12E and DS3N-12E port features DSX-level outputs supporting distances up to 450 feet. With the proper backplane EIA, the card supports BNC or SMB connectors.

3.5.3 Faceplate and Block Diagram

Figure 3-6 DS3-12E faceplate and block diagram

Figure 3-7 shows the DS3N-12E faceplate and a diagram of the card.

Figure 3-7 DS3N-12E faceplate and block diagram

3.5.4 DS3-12E and DS3N-12E Card-Level Indicators

The DS3-12E and DS3-12E card faceplate has three LEDs shown in Table 3-7.

Table 3-7 DS3-12E and DS3N-12E Card-Level Indicators  

Card-Level Indicators
Description
Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready. Replace the card if the red FAIL LED persists.

ACT/STBY LED
Green (Active)
Amber (Standby)

When the ACTV/STBY LED is green, the DS3-12E card is operational and ready to carry traffic. When the ACTV/STBY LED is amber, the DS3-12E card is operational and in standby (protect) mode.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as port LOS, AIS, etc.


3.5.5 DS3-12E and DS3N-12E Port-Level Indicators

You can find the status of the DS3-12E and DS3N-12E card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to quickly view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot. See Alarm Troubleshooting for a complete description of the alarm messages.

3.5.6 DS3-12E and DS3N-12E Specifications

The DS3-12E and DS3N-12E card specifications are shown in Table 3-8.

Table 3-8 DS3-12E and DS3N-12E Card Specifications 

Specification Type
Description
DS3-12E/DS3N-12E Input

Bit Rate: 44.736 Mbps +/- 20 ppm

Frame Format: DS-3 ANSI T1.107-1988

Line Code: B3ZS

Termination: Unbalanced coaxial cable

Input Impedance: 75 ohms +/-5%

Cable Loss: Max 450 ft. 734A, RG-59, 728A/Max 79 ft. RG-179

AIS: TR-TSY-000191-compliant

DS3-12E/DS3N-12E Output

Bit Rate: 44.736 Mbps +/- 20 ppm

Frame Format: DS-3 ANSI T1.107-1988

Line Code: B3ZS

Termination: Unbalanced coaxial cable

Input Impedance: 75 ohms +/-5%

Cable Loss: Max 450 ft. 734A, RG-59, 728A/Max 79 ft. RG-179

AIS: TR-TSY-000191-compliant

Power Level: -1.8 - +5.7 dBm (The power level is for a signal of all ones and is measured at a center frequency of 22.368 MHz (+/-KHz) bandwidth.)

Pulse Shape: ANSI T1.102-1988 Figure 8

Pulse Amplitude: 0.36 - 0.85 V peak-to-peak

Loopback Modes: Terminal and Facility

Line Build Out: 0-225 ft.; 226-450 ft.

DS3-12E/DS3N-12E Electrical Interface

Connectors: BNC or SMB

Surge Protection

GR-1089

Operating Temperature

I-Temp (15454-DS3-12E-T and 15454-DS3N-12E-T): -40 to +65 degrees Celsius

Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card without this symbol is C-Temp compliant.

Operating Humidity

5 - 95%, non-condensing

Power Consumption

26.80 W, 0.56 amps, 91.51 BTU/Hr.

Dimensions

Height: 12.650 in.

Width: 0.716 in.

Depth: 9.000 in.

Depth with backplane connector: 9.250 in.

DS3-12E Card Weight: 1.8 lbs, 0.8 kg

DS3N-12E Card Weight: 1.9 lbs, 0.8 kg

Compliance

ONS 15454 cards, when installed in a system, comply with these standards: Safety: UL 1950, CSA C22.2 No. 950, EN 60950, IEC 60950


3.6 DS3XM-6 Card

The DS3XM-6 card, commonly referred to as a transmux card, provides six Telcordia-compliant, GR-499-CORE M13 multiplexing functions. The DS3XM-6 converts six framed DS-3 network connections to 28x6 or 168 VT1.5s. You cannot create circuits from a DS3XM-6 card to a DS-3 card. DS3XM-6 cards operate at the VT1.5 level.

3.6.1 DS3XM-6 Slots and Connectors

The DS3XM-6 card supports 1:1 protection with the proper backplane EIA. EIAs are available with BNC or SMB connectors.

You can install the DS3XM-6 in any multispeed or high-speed card slot. Each DS3XM-6 port features DSX-level outputs supporting distances up to 450 feet depending on facility conditions.

3.6.2 DS3XM-6 Faceplate and Block Diagram

Figure 3-8 shows the DS3XM-6 faceplate and a block diagram of the card.

Figure 3-8 DS3XM-6 faceplate and block diagram

3.6.3 DS3XM-6 Hosted By XCVT

The DS3XM-6 card works in conjunction with the XCVT card. A single DS3XM-6 can demultiplex (map down to a lower rate) six DS-3 signals into 168 VT1.5s that the XCVT card then manages and cross connects. XCVT cards host a maximum of 336 bidirectional VT1.5s or two DS3XM-6 cards. In most network configurations two DS3XM-6 cards are paired together as working and protect cards.

3.6.4 DS3XM-6 Card-Level Indicators

The DS3XM-6 card faceplate has three LEDs.

Table 3-9 DS3XM-6 Card-Level Indicators  

Card-Level Indicators
Description
Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready. Replace the card if the red FAIL LED persists.

ACT/STBY LED
Green (Active)
Amber (Standby)

When the ACTV/STBY LED is green, the DS3XM-6 card is operational and ready to carry traffic. When the ACTV/STBY LED is amber, the DS3XM-6 card is operational and in standby in a 1:1 protection group.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS, LOF, or high BER on one or more of the card's ports.


3.6.5 DS3XM-6 Port-Level Indicators

You can find the status of the six DS3XM-6 card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to quickly view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot. See Alarm Troubleshooting for a complete description of the alarm messages.

3.6.6 DS3XM-6 Specifications

The DS3XC-6 card specifications are shown in Table 3-10.

Table 3-10 DS3XM-6 Card Specifications 

Specification Type
Description
DS3XM-6 Input

Bit Rate: 44.736 Mbps +/- 20 ppm

Frame Format: DS-3 ANSI T1.107-1988

Line Code: B3ZS

Termination: Unbalanced coaxial cable

Input Impedance: 75 ohms +/-5%

Cable Loss: Max 450 ft. 734A, RG-59, 728A/Max 79 ft. RG-179

AIS: TR-TSY-000191-compliant

DS3XM-6 Output

Bit Rate: 44.736 Mbps +/- 20 ppm

Frame Format: DS-3 ANSI T1.107-1988

Line Code: B3ZS

Termination: Unbalanced coaxial cable

Input Impedance: 75 ohms +/-5%

Cable Loss: Max 450 ft. 734A, RG-59, 728A/Max 79 ft. RG-179

AIS: TR-TSY-000191-compliant

Power Level: -1.8 - +5.7 dBm

Pulse Shape: ANSI T1.102-1988 Figure 8

Pulse Amplitude: 0.36 - 0.85 V peak-to-peak

Loopback Modes: Terminal and Facility

Line Build Out: 0-225 ft.; 226-450 ft.

DS3XM-6 Electrical Interface

Connectors: BNC or SMB

Surge Protection

GR-1089

Operating Temperature

C-Temp (15454-DS3XM-6): 0 to +55 degrees Celsius

I-Temp (15454-DS3XM-6-T): -40 to +65 degrees Celsius

Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card without this symbol is C-Temp compliant.

Operating Humidity

5 - 95%, non-condensing

Power Consumption

20 W, 0.42 amps, 68 BTU/Hr.

Dimensions

Height: 12.650 in.

Width: 0.716 in.

Depth: 9.000 in.

Card Weight: 1.8 lbs, 0.8 kg

Compliance

ONS 15454 cards, when installed in a system, comply with these standards: Safety: UL 1950, CSA C22.2 No. 950, EN 60950, IEC 60950


3.7 Electrical Card Comparisons

Table 3-11 Electrical Card Power Requirements

Card Type
Card Name
Watts
Amps
BTU/Hr.
Electrical Cards

EC1-12

36.60

0.76

124.97

DS1-14

12.60

0.26

43.02

DS1N-14

12.60

0.26

43.02

DS3-12

38.20

0.79

130.43

DS3N-12

38.20

0.79

130.43

DS3-12E

26.80

0.56

91.51

DS3N-12E

26.80

0.56

91.51

DS3XM-6 Transmux *

20

0.42

68


Table 3-12 Electrical Card Temperature Ranges

Card
C-Temp Product Name
(0 to +55 degrees Celsius)
I-Temp Product Name
(-40 to +65 degrees Celsius)
EC1-12

15454-EC1-12

15454-EC1-12-T

DS1-14

15454-DS1-14

15454-DS1-14-T

DS1N-14

15454-DS1N-14

15454-DS1N-14-T

DS3-12

15454-DS3-12

15454-DS3-12-T

DS3N-12

15454-DS3N-12

15454-DS3N-12-T

DS3-12E

15454-DS3-12E-T

DS3N-12E

15454-DS3N-12E-T

DS3XM-6 (Transmux)

15454-DS3XM-6

15454-DS3XM-6-T


3.8 Electrical Interface Assemblies

Optional EIA backplane covers are typically pre-installed when ordered with the ONS 15454. EIAs must be ordered when using DS-1, DS-3, DS3XM-6, or EC-1 cards. A minimum amount of assembly may be required when EIAs are ordered separately from the ONS 15454. Four different EIA backplane covers are available for the ONS 15454: BNC, High-Density BNC, SMB, and AMP Champ. This section describes each EIA in detail. If the shelf was not shipped with the correct EIA interface, you must order and install the correct EIA.

EIAs are attached to the shelf assembly backplane to provide electrical interface cable connections. EIAs are available with SMB and BNC connectors for DS-3 or EC-1 cards. EIAs are available with AMP Champ connectors for DS-1 cards. You must use SMB EIAs for DS-1 twisted-pair cable installation. You can install EIAs on one or both sides of the ONS 15454 backplane in any combination (in other words, AMP Champ on Side A and BNC on Side B or High-Density BNC on side A and SMB on side B, and so forth).

EIAs have two sides. As you face the rear of the ONS 15454 shelf assembly, the right-hand side is the A side and the left-hand side is the B side. You can install EIAs on one or both sides of the ONS 15454 backplane in any combination. For example, you can use an AMP Champ EIA on side A and a BNC EIA on side B. The top of the EIA connector columns are labelled with the corresponding slot number, and EIA connector pairs are marked Tx and Rx to correspond to transmit and receive cables. EIAs come pre-installed on the ONS 15454 when ordered with the node.

If you are installing EIAs after the shelf assembly is installed, plug the EIA into the backplane. The EIA has six electrical connectors that plug into six corresponding backplane connectors. The EIA backplane must replace the standard sheet metal cover to provide access to the coaxial cable connectors. The EIA sheet metal covers use the same screw holes as the solid backplane panels, but they have 12 additional 6-32 x 1/2 inch phillips screw holes so you can screw down the cover and the board using standoffs on the EIA board. This section describes each EIA.

Table 3-13 gives the product numbers and common names for EIAs.

Table 3-13 EIA Configurations 

EIA Type
Cards Supported
A Side Hosts
A Side Columns Map to
A Side Product Number
B Side Hosts
B Side Columns Map to
B Side Product Number

BNC

DS-3 DS3XM-6 EC-1

24 pairs of BNC connectors

Slot 2

Slot 4

15454-EIA-BNC-A24

24 pairs of

BNC connectors

Slot 14

Slot 16

15454-EIA-BNC-B24

High- Density BNC

DS-3 DS3XM-6 EC-1

48 pairs of BNC connectors

Slot 1

Slot 2

Slot 4

Slot 5

15454-EIA-BNC-A48

48 pairs of

BNC connectors

Slot 13

Slot 14

Slot 16

Slot 17

15454-EIA-BNC-B48

SMB

DS-1
DS-3
EC-1
DS3XM-6

84 pairs of SMB connectors

Slot 1

Slot 2

Slot 3

Slot 4

Slot 5

Slot 6

15454-EIA-SMB-A84

84 pairs of SMB connectors

Slot 12

Slot 13

Slot 14

Slot 15

Slot 16

Slot 17

15454-EIA-SMB-B84

AMP Champ

DS-1

6 AMP Champ
connectors

Slot 1

Slot 2

Slot 3

Slot 4

Slot 5

Slot 6

15454-EIA-AMP-A84

6 AMP Champ
connectors

Slot 12

Slot 13

Slot 14

Slot 15

Slot 16

Slot 17

15454-EIA-AMP-B84


3.8.1 BNC EIA

The ONS 15454 BNC EIA supports 24 DS-3 circuits on each side of the ONS 15454 (24 transmit and 24 receive connectors). If you install BNC EIAs on both sides of the shelf assembly, the ONS 15454 hosts up to 48 circuits. The BNC connectors on the EIA supports Trompeter UCBJ224 (75 Ohm) 4 leg connectors (King or ITT are also compatible). Right-angle mating connectors for the connecting cable are AMP 413588-2 (75 Ohm) connectors. If preferred, you can also use a straight connector of the same type. Use RG-59/U cable to connect to the ONS 15454 BNC EIA. These cables are recommended to connect to a patch panel and are designed for long runs of up to 450 feet. You can use BNC EIAs for DS-3 (including the DS3XM-6) or EC-1 cards.

Figure 3-9 shows the ONS 15454 with pre-installed BNC EIAs.

To install coaxial cable with BNC connectors, refer to the Cisco ONS 15454 Procedure Guide.

Figure 3-9 A BNC backplane for use in 1:1 protection schemes

3.8.1.1 BNC Connectors

The EIA side marked "A" has 24 pairs of BNC connectors. The first 12 pairs of BNC connectors correspond to Ports 1-12 for a 12-port card and map to Slot 2 on the shelf assembly. The BNC connector pairs are marked "Tx" and "Rx" to indicate transmit and receive cables for each port. You can install an additional card in Slot 1 as a protect card for the card in Slot 2. The second 12 BNC connector pairs correspond to Ports 1-12 for a 12-port card and map to Slot 4 on the shelf assembly. You can install an additional card in Slot 3 as a protect card for the card in Slot 4. Slots 5 and 6 do not support DS-3 cards when BNC connectors are used.

The EIA side marked "B" provides an additional 24 pairs of BNC connectors. The first 12 BNC connector pairs correspond to Ports 1-12 for a 12-port card and map to Slot 14 on the shelf assembly. The BNC connector pairs are marked "Tx" and "Rx" to indicate transmit and receive cables for each port. You can install an additional card in Slot 15 as a protect card for the card in Slot 14. The second 12 BNC connector pairs correspond to Ports 1-12 for a 12-port card and map to Slot 16 on the shelf assembly. You can install an additional card in Slot 17 as a protect card for the card in Slot 16. Slots 12 and 13 do not support DS-3 cards when BNC connectors are used.

When BNC connectors are used with a DS3N-12 card in Slot 3 or 15, the 1:N card protection extends only to the two slots adjacent to the 1:N card due to BNC wiring constraints.

3.8.1.2 BNC Insertion and Removal Tool

Due to the large number of BNC connectors on the High-Density BNC EIA, you might require a special tool for inserting and removing BNC EIAs ( Figure 3-10). This tool also helps with ONS 15454 patch panel connections.

Figure 3-10 BNC insertion and removal tool

This tool can be obtained with P/N 227-T1000 from:

Amphenol USA (www.amphenol.com)

One Kennedy Drive

Danbury, CT 06810

Phone: 203-743-9272 Fax: 203-796-2032

This tool can be obtained with P/N RT-1L from:

Trompeter Electronics Inc. (www.trompeter.com)

31186 La Baya Drive

Westlake Village, CA 91362-4047

Phone: (800) 982-2629 Fax: (818) 706-1040

3.8.2 High-Density BNC EIA

The ONS 15454 High-Density BNC EIA supports 48 DS-3 circuits on each side of the ONS 15454 (48 transmit and 48 receive connectors). If you install BNC EIAs on both sides of the unit, the ONS 15454 hosts up to 96 circuits. The High-Density BNC EIA supports Trompeter UCBJ224 (75 Ohm) 4 leg connectors (King or ITT are also compatible). Use straight connectors on RG-59/U cable to connect to the High-Density BNC EIA. Cisco recommends these cables for connection to a patch panel; they are designed for long runs of up to 450 feet. You can use High-Density BNC EIAs for DS-3 (including the DS3XM-6) or EC-1 cards. Figure 3-11 shows the ONS 15454 with pre-installed High-Density BNC EIAs.

To install coaxial cable with High-Density BNC connectors, refer to the Cisco ONS 15454 Procedure Guide.

Figure 3-11 A High-Density BNC backplane for use in 1:N protection schemes

The EIA side marked "A" hosts 48 pairs of BNC connectors. Each column of connector pairs is numbered and corresponds to the slot of the same number. The first column (12 pairs) of BNC connectors corresponds to Slot 1 on the shelf assembly, the second column to Slot 2, the third column to Slot 4, and the fourth column to Slot 5. The rows of connectors correspond to Ports 1-12 of a 12-port card.

The EIA side marked "B" provides an additional 48 pairs of BNC connectors. The first column (12 pairs) of BNC connectors corresponds to Slot 13 on the shelf assembly, the second column to Slot 14, the third column to Slot 16, and the fourth column to Slot 17. The rows of connectors correspond to Ports 1-12 of a 12-port card. The BNC connector pairs are marked "Tx" and "Rx" to indicate transmit and receive cables for each port. The High-Density BNC EIA supports both 1:1 and 1:N protection across all slots.

3.8.3 SMB EIA

The ONS 15454 SMB EIA supports AMP 415484-1 75 Ohm 4 leg connectors. Right-angle mating connectors for the connecting cable are AMP 415484-2 (75 Ohm) connectors. Use RG-179/U cable to connect to the ONS 15454 EIA. Cisco recommends these cables for connection to a patch panel; they are not designed for long runs (over 50 feet). Range does not affect loopback testing.

You can use SMB EIAs with DS-1, DS-3 (including the DS3XM-6), and EC-1 cards. If you use DS-1 cards, use the DS-1 electrical interface adapter to terminate the twisted pair DS-1 cable from the backplane (see the "Electrical Interface Adapters" section). SMB EIAs support 14 ports per slot when used with a DS-1 card, 12 ports per slot when used with a DS-3 or EC-1 card, and 6 ports per slot when used with a DS3XM-6 card.

Figure 3-12 shows the ONS 15454 with pre-installed SMB EIAs and the sheet metal cover and screw locations for the EIA. The SMB backplane cover is similar to the BNC cover. The SMB connectors on the EIA are AMP 415504-3 (75 Ohm) 4 leg connectors.

To install SMB connectors, refer to the Cisco ONS 15454 Procedure Guide.

Figure 3-12 An SMB EIA backplane

The SMB EIA has 84 transmit and 84 receive connectors on each side of the ONS 15454 for a total of 168 SMB connectors (84 circuits).

The EIA side marked "A" hosts 84 SMB connectors in six columns of 14 connectors. The "A" side columns are numbered 1-6 and correspond to Slots 1-6 on the shelf assembly. The EIA side marked "B" hosts an additional 84 SMB connectors in six columns of 14 connectors. The "B" side columns are numbered 12-17 and correspond to Slots 12-17 on the shelf assembly. The connector rows are numbered 1-14 and correspond to the 14 ports on a DS-1 card.

For DS-3 or EC-1, the EIA supports 72 transmit and 72 receive connectors, for a total of 144 SMB connectors (72 circuits). If you use a DS-3 or EC-1 card, only Ports 1-12 are active. If you use a DS3XM-6 card, only Ports 1 - 6 are active. The SMB connector pairs are marked "Tx" and "Rx" to identify transmit and receive cables for each port. If you use SMB connectors, you can install DS-1, DS-3, or EC-1 cards in any multispeed slot.

3.8.4 AMP Champ EIA

The ONS 15454 AMP Champ EIA supports 64-pin (32 pair) AMP Champ connectors for each slot on both sides of the shelf assembly where the EIA is installed. Cisco AMP Champ connectors are female AMP # 552246-1 with AMP # 552562-2 bail locks. Each AMP Champ connector supports 14 DS-1 ports. You can use AMP Champ EIAs with DS-1 cards only. Figure 3-13 shows the ONS 15454 with pre-installed AMP Champ EIAs and the corresponding sheet metal cover and screw locations for the EIA.

To install AMP Champ connector DS-1 cables, you must use 64-pin bundled cable connectors with a 64-pin male AMP Champ connector. You need an AMP Champ connector #552276-1 for the receptacle side and #1-552496-1 (for cable diameter .475in.-.540in) or #2-552496-1 (for cable diameter .540in.-.605in.) for the right-angle shell housing (or their functional equivalent). The corresponding 64-pin female AMP Champ connector on the AMP Champ EIA supports one receive and one transmit for each DS-1 port for the corresponding card slot.

Because each DS1-14 card supports 14 DS-1 ports, only 56 pins (28 pairs) of the 64-pin connector are used. Prepare one 56-wire cable for each DS-1 facility installed. Table 3-14 shows the pin assignments for the AMP Champ connectors on the ONS 15454 AMP Champ EIA.

Figure 3-13 An AMP EIA Champ backplane

The EIA side marked "A" hosts six AMP Champ connectors. The connectors are numbered 1-6 for the corresponding slots on the shelf assembly. Each AMP Champ connector on the backplane supports 14 DS-1 ports for a DS1-14 card, and each connector features 28 live pairs—one transmit pair and one receive pair—for each DS-1 port.

The EIA side marked "B" hosts six AMP Champ connectors. The connectors are labeled 12-17 for the corresponding slots on the shelf assembly. Each AMP Champ connector on the backplane supports 14 DS-1 ports for a DS1-14 card, and each connector features 28 live pairs—one transmit pair and one receive pair—for each DS-1 port.


Note EIAs are hot-swappable. You do not need to disconnect power to install or remove EIAs.



Caution Always use an electrostatic discharge (ESD) wristband when working with a powered ONS 15454. Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.

Table 3-14 Pin Assignments for AMP Champ Connectors (Shaded Area Corresponds to White/Orange Binder Group) 

Signal/Wire
Pin
Pin
Signal/Wire
Signal/Wire
Pin
Pin
Signal/Wire

Tx Tip 1
white/blue

1

33

Tx Ring 1
blue/white

Rx Tip 1
yellow/orange

17

49

Rx Ring 1
orange/yellow

Tx Tip 2 white/orange

2

34

Tx Ring 2
orange/white

Rx Tip 2
yellow/green

18

50

Rx Ring 2
green/yellow

Tx Tip 3
white/green

3

35

Tx Ring 3
green/white

Rx Tip 3
yellow/brown

19

51

Rx Ring 3
brown/yellow

Tx Tip 4
white/brown

4

36

Tx Ring 4
brown/white

Rx Tip 4
yellow/slate

20

52

Rx Ring 4
slate/yellow

Tx Tip 5
white/slate

5

37

Tx Ring 5
slate/white

Rx Tip 5
violet/blue

21

53

Rx Ring 5
blue/violet

Tx Tip 6
red/blue

6

38

Tx Ring 6
blue/red

Rx Tip 6
violet/orange

22

54

Rx Ring 6
orange/violet

Tx Tip 7
red/orange

7

39

Tx Ring 7
orange/red

Rx Tip 7
violet/green

23

55

Rx Ring 7
green/violet

Tx Tip 8
red/green

8

40

Tx Ring 8
green/red

Rx Tip 8
violet/brown

24

56

Rx Ring 8
brown/violet

Tx Tip 9
red/brown

9

41

Tx Ring 9
brown/red

Rx Tip 9
violet/slate

25

57

Rx Ring 9
slate/violet

Tx Tip 10
red/slate

10

42

Tx Ring 10
slate/red

Rx Tip 10
white/blue

26

58

Rx Ring 10
blue/white

Tx Tip 11
black/blue

11

43

Tx Ring 11
blue/black

Rx Tip 11
white/orange

27

59

Rx Ring 11
orange/white

Tx Tip 12
black/orange

12

44

Tx Ring 12
orange/black

Rx Tip 12
white/green

28

60

Rx Ring 12
green/white

Tx Tip 13
black/green

13

45

Tx Ring 13
green/black

Rx Tip 13
white/brown

29

61

Rx Ring 13
brown/white

Tx Tip 14
black/brown

14

46

Tx Ring 14
brown/black

Rx Tip 14
white/slate

30

62

Rx Ring 14
slate/white

Tx Spare0+ N/A

15

47

Tx Spare0- N/A

Rx Spare0+ N/A

31

63

Rx Spare0- N/A

Tx Spare1+ N/A

16

48

Tx Spare1- N/A

Rx Spare1+ N/A

32

64

Rx Spare1- N/A


Table 3-15 shows the pin assignments for the AMP Champ connectors on the ONS 15454 AMP Champ EIA for a shielded DS1 cable.

Table 3-15 Pin Assignments for AMP Champ Connectors (shielded DS1 cable) 

64-Pin Blue Bundle
64-Pin Orange Bundle
Signal/Wire
Pin
Pin
Signal/Wire
Signal/Wire
Pin
Pin
Signal/Wire

Tx Tip 1
white/blue

1

33

Tx Ring 1
blue/white

Rx Tip 1
white/blue

17

49

Rx Ring 1
blue/white

Tx Tip 2 white/orange

2

34

Tx Ring 2
orange/white

Rx Tip 2
white/orange

18

50

Rx Ring 2
orange/white

Tx Tip 3
white/green

3

35

Tx Ring 3
green/white

Rx Tip 3
white/green

19

51

Rx Ring 3
green/white

Tx Tip 4
white/brown

4

36

Tx Ring 4
brown/white

Rx Tip 4
white/brown

20

52

Rx Ring 4
brown/white

Tx Tip 5
white/slate

5

37

Tx Ring 5
slate/white

Rx Tip 5
white/slate

21

53

Rx Ring 5
slate/white

Tx Tip 6
red/blue

6

38

Tx Ring 6
blue/red

Rx Tip 6
red/blue

22

54

Rx Ring 6
blue/red

Tx Tip 7
red/orange

7

39

Tx Ring 7
orange/red

Rx Tip 7
red/orange

23

55

Rx Ring 7
orange/red

Tx Tip 8
red/green

8

40

Tx Ring 8
green/red

Rx Tip 8
red/green

24

56

Rx Ring 8
green/red

Tx Tip 9
red/brown

9

41

Tx Ring 9
brown/red

Rx Tip 9
red/brown

25

57

Rx Ring 9
brown/red

Tx Tip 10
red/slate

10

42

Tx Ring 10
slate/red

Rx Tip 10
red/slate

26

58

Rx Ring 10
slate/red

Tx Tip 11
black/blue

11

43

Tx Ring 11
blue/black

Rx Tip 11
black/blue

27

59

Rx Ring 11
blue/black

Tx Tip 12
black/orange

12

44

Tx Ring 12
orange/black

Rx Tip 12
black/orange

28

60

Rx Ring 12
orange/black

Tx Tip 13
black/green

13

45

Tx Ring 13
green/black

Rx Tip 13
black/green

29

61

Rx Ring 13
green/black

Tx Tip 14
black/brown

14

46

Tx Ring 14
brown/black

Rx Tip 14
black/brown

30

62

Rx Ring 14
brown/black

Tx Tip 15
black/slate

15

47

Tx Tip 15
slate/black

Rx Tip 15
black/slate

31

63

Rx Tip 15
slate/black

Tx Tip 16
yellow/blue

16

48

Tx Tip 16
blue/yellow

Rx Tip 16
yellow/blue

32

64

Rx Tip 16
blue/yellow


When using DS-1 AMP Champ cables, you must equip the ONS 15454 with an AMP Champ connector EIA on each side of the backplane where DS-1 cables will terminate. Each AMP Champ connector on the EIA corresponds to a slot in the shelf assembly and is numbered accordingly. The AMP Champ connectors have screw-down tooling at each end of the connector.

3.8.5 EIA Replacement

The replacement procedure is the same for all the EIA types. However, installing the AMP Champ EIA requires the additional step of attaching the fastening plate to the bottom of the connector row. Before you attach a new EIA, you must remove the backplane cover or EIA already attached to the ONS 15454.

3.9 Coaxial Cable


Caution Always use the supplied ESD wristband when working with a powered ONS 15454. Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.

When using ONS 15454 DS-3 electrical cables, the cables must terminate on an EIA installed on the ONS 15454 backplane. All DS-3 cables connected to the ONS 15454 DS-3 card must terminate with coaxial cables using the desired connector type to connect to the specified EIA.

The electromagnetic compatibility (EMC) performance of the system depends on good-quality DS-3 coaxial cables, such as Shuner Type G 03233 D, or the equivalent.

3.10 DS-1 Cable

DS-1s support AMP Champ connector cabling and twisted-pair wire-wrap cabling. Twisted-pair wire-wrap cables require SMB EIAs.

3.10.1 Twisted Pair Wire-Wrap Cables

Installing twisted-pair, wire-wrap DS-1 cables requires separate pairs of grounded twisted-pair cables for receive (in) and transmit (out). Prepare four cables, two for receive and two for transmit, for each DS-1 facility to be installed.


Caution Always use the supplied ESD wristband when working with a powered ONS 15454. Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.

If you use DS-1 electrical twisted-pair cables, equip the ONS 15454 with an SMB EIA on each side of the backplane where DS-1 cables will terminate. You must install special DS-1 electrical interface adapters, commonly referred to as a balun, on every transmit and receive connector for each DS-1 termination.

3.10.2 Electrical Interface Adapters


Note DS-1 electrical interface adapters project an additional 1.72 inches from the ONS 15454 backplane.


If you install DS-1 cards in the ONS 15454, you must fit the corresponding transmit and receive SMB connectors on the EIA with a DS-1 electrical interface adapter. You can install the adapter on the SMB connector for the port. The adaptor has wire-wrap posts for DS-1 transmit and receive cables. Figure 3-14 shows the DS-1 electrical interface adapter.

Figure 3-14 DS-1 electrical interface adapter (balun)

Each DS-1 electrical interface adapter has a female SMB connector on one end and a pair of .045 inch square wire-wrap posts on the other end. The wire-wrap posts are .200 inches apart.


Caution Always use the supplied ESD wristband when working with a powered ONS 15454. Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf assembly.

3.11 Cable Routing and Management

The ONS 15454 cable management facilities include the following:

A cable-routing channel that runs the width of the shelf assembly

Plastic horseshoe-shaped fiber guides at each side opening of the cable-routing channel that ensure the proper bend radius is maintained in the fibers


Note You can remove the fiber guide if necessary to create a larger opening (if you need to route CAT-5 Ethernet cables out the side, for example). To remove the fiber guide, take out the three screws that anchor it to the side of the shelf assembly.


A fold-down door that provides access to the cable-management tray

Cable tie-wrap facilities on EIAs that secure cables to the cover panel

Reversible jumper routing fins that enable you to route cables out either side by positioning the fins as desired

Jumper slack storage reels (2) on each side panel that reduce the amount of slack in cables that are connected to other devices


Note To remove the jumper slack storage reels, take out the screw in the center of each reel.


Figure 3-15 shows the cable management facilities that you can access through the fold-down front door, including the cable-routing channel and the jumper routing fins.

Figure 3-15 Managing cables on the front panel

3.11.1 Coaxial Cable Management

Coaxial cables connect to EIAs on the ONS 15454 backplane using cable connectors. EIAs feature cable-management eyelets for tie wrapping or lacing cables to the cover panel.

3.11.2 DS-1 Twisted-Pair Cable Management

Connect twisted pair/DS-1cables to SMB EIAs on the ONS 15454 backplane using cable connectors and DS-1 electrical interface adapters (baluns).

3.11.3 AMP Champ Cable Management

EIAs have cable management eyelets to tiewrap or lace cables to the cover panel. Tie wrap or lace the AMP Champ cables according to local site practice and route the cables. If you configure the ONS 15454 for a 23-inch rack, two additional inches of cable management area is available on each side of the shelf assembly.