System Specifications

Card Slot Capacity

Supports combinations of full and single-height service modules.
Two double-height slots reserved for PXMs.
Up to 28 single-height slots for service modules or up to 14 double-height slots for service modules.

Enclosure Size,
AC-powered system:

DC-powered system:

Height: 33.25 inches (45.5 cm).
Width: 17.75 inches (45.08 cm) for all enclosure modules, so the rack must have this minimal, inner width. If a 19-inch rack cannot provide it, use a 23-inch rack.
Depth: 27.0 inches (68.6 cm).

Height: 28 inches (71.1 cm.).
Width: 17.75 inches (45.08 cm) for all enclosure modules, so the rack must have this minimal, inner width. If a 19-inch rack cannot provide it, use a 23-inch rack.
Depth: 27.0 inches (68.6 cm) with cable manager, 21.5 inches
(54.6 cm) without cable manager.

Shipping Weight for Populated Enclosure

DC: 190 lb (87 Kgs) with 2 DC PEMs.
AC: 230 lb (104.5 Kgs).

Shipping Weight for Individual Components

Single-height, front and back cards: 2.48 lb (1.13 Kgs)
Double-height, front and back cards: 6.0 lb (2.73 Kgs)

Card cage with boards: 160 lb (72.73 Kgs)

Exhaust plenum: 8 lb

Fan tray: 9.5 lb

Inlet plenum: 8 lb

AC power tray with power supplies: 45 lb

Clearance Requirement for the Enclosure

Minimum 30 inches front and rear; nominal 12-inch side clearance.

Power Input Voltage

AC system: Normal operating range is 200-240 VAC, 47 to 63 Hz. The maximum voltage range is 180-264 VAC.
DC system: -42 to -56 VDC.

Each AC supply can provide up to 1200W.

Current Requirements, AC System

Configuration-dependent: use Network Design Tool for exact requirements. For general planning purposes: 14.4A at a nominal voltage of 200 VAC. At the minimum voltage limit of 180 VAC, the current draw is a maximum of 16A.

Current Requirements, DC System

Configuration-dependent: use the Network Design Tool for exact requirements. For general planning purposes: 43.2A at nominal -48 VDC; 49.4A at -42 VDC maximum.

Input AC Power Connector

IEC 16A input connector. For a list of the AC power plugs for domestic and international use, see Appendix B, "AC Power Cabling" section

DC Input Connections

Three-position terminal block for 6 AWG wire (10 square millimeters) and #10 screw lugs designed for 6 AWG wire.

Operating Environment

0-40 degrees Celsius (32-104 degrees Fahrenheit) normal operation (50 degrees Celsius or 122 degrees Fahrenheit up to
72 hours). Maximum 85% relative humidity.

Shock

Withstands 10 G, 10 ms at 1/2 sine wave.

Vibration

Withstands 1/4 G, 20-500 Hz.

Heat Transfer to Environment

AC-powered: maximum 9560 BTUs.
DC-powered: maximum 8200 BTUs.

MGX-FRSM-8T1

MGX-FRSM-8E1

MGX-FRSM-8T1c

MGX-FRSM-8E1c

8 T1, 8 E1

7.25 x 16.25

7.00 x 4.50

1.74 lb/
0.76 lb

30WW

MGX-FRSM-2CT3

2 T3

7.25 x 16.25

7.00 x 4.50

1.74 lb/
0.76 lb

60W

MGX-FRSM-2T3E3

2 T3, 2 E3

7.25 x 16.25

7.00 x 4.50

1.74 lb/
0.76 lb

60W

MGX-FRSM-HS2

2 HSSI

7.25 x 16.25

7.00 x 4.50

1.74 lb/
0.6 lb

75W

MGX-CESM-8T1E1

8 T1, 8 E1

7.25 x 16.25

7.00 x 4.50

1.74 lb
0.76 lb

30W

MGX-CESM-T3E3

2 T3, 2 E3

7.25 x 16.25

7.00 x 4.50

1.74 lb/
0.76 lb

60W

MGX-AUSM/B-8T1E1

8-T1, 8-E1

7.25 x 16.25

7.00 x 4.50

1.74 lb
0.76 lb

30W

RPM

4-Ethernet, 1-FE
(RJ45/mmf),
1-FDDI (smf, mmf)

Up to 2 back cards

15.65 x15.9

7.00 x 4.125

4.80 lb

110W

PXM1

2 T3/E3, OC-3c/STM-1, OC12c/STM-4, VI

15.65 x 15.83

7.00 x 4.5

4.80 lb

100W

U.S.A EMC

FCC Part 15, Class A

not applicable

Japan EMC

Austel 3548 Class A

not applicable

Australia EMC

VCCI Class A

not applicable

CE M mark

(EMC and immunity)

EMC: EN 55022 Class A

Immunity:

• EN 50082-1 (generic immunity)
  
  
• EN 61000-4-2 through -5 (mandatory)
  
  
• EN 61000-4-6 through -13 (not mandatory)
  
  

not applicable

NEBS

(EMC and immunity)

Not applicable

EMC:
GR-1089-CORE Class A (radiated and magnetic fields) and line conductance.

Immunity:
GR-1089-CORE ESD (8 KV contact)
RS (10 V/meter)
CS (clause 3.3.3)

European Telecom Standards (ETSI) for Surge: ETSI 300 386-1, DC power leads only
(200 VAC-1000 VAC)

EDVT

Cisco Systems: Electronic Design Validation Test (EDVT) Plan
ABC-123, Rev. A, dated 1/29/1996

Cisco Systems: Electronic Design Validation Test (EDVT) Plan
ABC-123, Rev. A, 1/29/1996—DC power cycling portions only.

MDVT

Cisco Systems: Mechanical Environmental Design and Qualification Guideline, ENG-3398, Rev. 7.

NEBS requirements, physical:
(GR-63-CORE, Issue 1, October, 1995). See mandatory CE mark immunity tests in forthcoming list.

Maximum switch fabric throughput.

1.2 Gbps.

Control access:

These ports exist on the PXM1-UI back card.

Control port: RJ-45 connector, EIA/TIA 232, DTE mode, asynchronous interface 19,200 baud, 1 start, 1 stop, no parity.

Maintenance port: RJ-45 connector, EIA/TIA 232, DTE mode, asynchronous interface 9600 baud, 1 start bit, 1 stop bit, no parity bits.

LAN port: RJ-45 connector, 10-BaseT, 802.3 Ethernet.

Uplink ports and connectors:

An uplink card can haveone of these number and type of connectors. The wavelength on optical lines is 1310 nm.

2 T3 ports, BNC connectors
2 E3, BNC connectors
4 OC-3 multi-mode fiber, SC connectors
4 OC-3 single-mode fiber, intermediate reach, SC connectors
4 OC-3 single-mode fiber, long reach, SC connectors
1 OC-12 single-mode fiber, intermediate reach, SC connectors
1 OC-12 single-mode fiber, long reach, SC connectors

Number of logical ports:

32 across all physical ports on the uplink card (regardless of line type).

LEDs on PXM1 front card

LEDs display status, but alarm history is a switch.

Status for the card:

• Green means active.
  
  
• Red means failed.
  
  
• Yellow indicates the standby card.
  
  

LAN activity: flashing green indicates activity.

Node alarm:

• Red indicates major alarm.
  
  
• Yellow indicates minor alarm.
  
  

Node power (note that each AC power supply also has an LED):

• "DC OK A" is green for okay or red for trouble.
  
  
• "DC OK B" is green for okay or red for trouble.
  
  

Alarm history: ACO

Port interface (per port):

• Green means active and okay.
  
  
• Red means active and local alarm.
  
  
• Yellow means active and remote alarm.
  
  
• No light means inactive or not provided.
  
  

LEDs on back cards

Green means active. No light means inactive or not provided.

Stratum-4 synchronization (internal only)

8 KHz clock derived from

• Internal 8 KHz clock (10 ppm).
  
  

Stratum-3 synchronization (internal and external)

• Free-Run Accuracy of +/- 4.6 ppm (+/- 7 Hz @
  1.544 MHz)
  
  
• Holdover stability of less than 255 slips (+/- .37 ppm) for the initial 24 hours of holdover.
  
  
• Upon clock switchover, MTIE (Maximum Time Interval Error) shall not exceed 1 micro second. The rate of phase change shall not exceed 81 ns in 1.326ms interval.
  
  
• Pull-in range of accuracy +/- 4.6 ppm.
  
  
• Provide Jitter filtering and tolerate Jitter according to AT&T T1.5 and ITU G.824 specifications.
  
  
• Declare a bad reference if LOS detected >50 ms or error burst of duration >2.5 sec.
  
  

BITS clock interface

T1 and E1 with an RJ-45 connector.

Note   Older systems with a PXM1-UI back card have a SMB connector for E1.

Trunk history counters

Ingress, per connection:
Number of received cells with CLP = 0.
Number of received cells with CLP = 1.

Egress, per connection:
Number of received cells.
Number of transmitted cells.
Number of received cells with EFCI bit set.
Number of transmitted cells with EFCI bit set.

Connection capacities supported by PXM1

Maximum number of connections:
16,000 bi-directional channels for local switching.
32,000 bi-directional channels for switching across uplink card.

Maximum aggregate bandwidth:
600 Mbps local switching (service module to service module).
1,200 Mbps switching across uplink.

Cell memory: 256K cells.

Processor clock speed and memory specifics

Clock speed: 200 MHz internal, 50 Mhz external.

Flash memory: 2 Mbytes.

DRAM: 64 Mbytes, upgradeable to 128 Mbytes.

Secondary cache: 512 Kbytes.

BRAM: 128 Kbytes.

Hard disk: 4 Gbytes.

Alarm indicators (audible and visual)

Central office-compatible alarm indicators and controls through a DB15 connector.

Maintenance features

Internal isolation loopback.
External remote loopback.
Hot-pluggable.

Card dimensions

Front card: 15.65 inches by 16.83 inches (39.75 cm by
42.75 cm).
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm).

Power

Requires -48 VDC, dissipates 100W.

LED Indicators Per Card

Active (green), Standby (yellow), Fail (red)

LED Indicators Per Line

One per line: Active and OK (green), Active and Local Alarm (red)
Active and Remote Alarm (yellow)

Maintenance and Serviceability

Facility loopback via loop up/down per ANSI T1.408 and
ATT TR 62411 (T1), CCITT G.7xx (E1)
Facility loopback via management console internal problem isolation loopbacks
Hot pluggable

Card Size

Front card: 7.25" x 16.25" (18.43 cm x 41.28 cm)
Back cards: 7" x 4.5" (17.78 cm x 11.43 cm)

Power

-48 VDC, 30W

Safety

EN 60950 2nd edition (including EN 41003) UL 1950 2nd edition

Compliance

T1: Accunet 62411
E1: G.703, G.823

ESD

IEC 1000-4-2

Line Interface

RJ48 (100 ohm) on the LM-RJ48-8T1 back card

Line Rate

1.544 Mbps ± 50 bps (T1)

Synchronization

Transmitter can be: loop-timed, Receiver, or synchronized to node (normal mode)

Line Code

Bipolar 8 Zero Substitution (B8ZS) per ANSI T1.408 (T1)

Line Framing

Extended Superframe Format (ESF 24 frame multiframe) per ANSI T1.408

ESF Maintenance

Bit-oriented alarm and loopback messages of ESF Data Link per ANSI T1.408

Input Jitter Tolerance

Per ATT TR 62411

Output Jitter

Per ATT TR 62411 using normal mode synchronization

Physical Layer Alarms

LOS, OOF, AIS, RAI

Physical Layer Performance Statistics

LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS

Line Interface Connector

RJ48 (120 ohm) on LM-RJ48-8E1, or SMB (75

) on LM-BNC-8E1

Line Rate

2.048 Mbps ± 100 bps

Synchronization

Transmitter can be: loop-timed, Receiver, or synchronized to shelf (normal mode)

Line Code

HDB3 (E1)

Line Framing

16-frame multiframe as in G.704

Input Jitter Tolerance

As specified in ITU G.823 for 2.048 Mbps

Output Jitter Generation

As specified in ITU G.823 for 2.048 Mbps

Physical Layer Alarms

LOS, OOF, AIS, RAI

Physical Layer Statistics

LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS

Standards

ATM UNI v3.1, ITU-T G.804, per CCITT I.361.

Channel Configuration

1000 per card, across any of the T1 or E1 ports.

VPI/VCI Ranges

VPI: 0-255.
VCI: 0-4096.

Traffic Classes

CBR, VBR, rt-VBR, ABR, UBR.

UPC Parameters

PCR, SCR, rt-VBR, non-rt-VBR, ABR, CCDV (CBR).

Congestion Control Support

ForeSight (toward Network for ABR), ATM Forum TM 4.0 compliant mechanisms for ABR.

ForeSight Parameters

MIR, PIR, Rate Up, Rate Down, QIR, QIR Timeout, IBS.

Per Port

Number of cells received from the interface.
Number of cells received with unknown VPI/VCI.
Last known VPI/VCI received from the port.
Number of cells discarded due to error in Cell Header.
Number of cells received with non-zero GRC field.
Number of cells transmitted to the interface.
Number of cells transmitted for which EFCI was set.
Number of egress cells discarded due to service interface physical alarm.

Endpoint (channel)

Ingress

Number of cells received from port.
Number of cells received from the port with CLP = 1.
Number of cells received from the port with EFCI = 1.
No, of cells from the port discarded due to queue exceeded QDepth.
Number of cells (with CLP) set) discarded due to queue exceeded CLP threshold.
Number of cells from the port for which CLP was set due to UPC violations.

ATMizer channel counters

Ingress

Number of cells transmitted to cell bus.
Number of cells to cell bus for which EFCI was set.
Number of cells to cell bus discarded due to shelf alarm.

Egress

Number of cells received from the cell bus.
Number of cells discarded due to queue exceeded QDepth
(per Egress Q).
Number of cells discarded due to queue exceeded CLP threshold (per Egress Q).
Number of cells received with CLP = 1.

Other Counters

Ingress

Number of OAM cells discarded.
Number of AIS cells received from the port.
Number of RDI (FERF) cells received from the port.
Number SegmentLpBk cells received from the port.
Number of SegmentLpBk cells transmitted to cell bus.

Egress

Number of OAM cells discarded.
Number of AIS cells transmitted to the port.
Number of SegmentLpBk cells transmitted to the port.
Number of SegmentLpBk cells received from the port.

Diagnostic Statistics

Peak Queue Depth (Ingress: per channel).

Frame Relay Interface

ANSI T1.618, 2-octet header

ATM Layer

CCITT I.361 and ATM UNI v3.1

AAL Layer

AAL5 per Draft CCITT I.363

FR-Cell Interworking

Per Draft CCITT I.555 and I.36x.1, as summarized in "ATM-to-Frame Relay Interoperability Implementation Agreement" v 1.0

Power

48 VDC, 50W (estimated)

Card Status Indicator LEDs

ACT

Green

On indicates the card set is in active mode.

STBY

Yellow

Slow blink without the Active LED indicates the card is in the boot state.

Fast blink with the Active LED indicates the card is being downloaded.

Fast blink indicates the service module is passing BRAM channel information to the ASC.

Steady yellow indicates the card is in Standby mode and the firmware is executing ADMIN code.

Fail

Red

Steady Red with Active and Standby LEDs off indicates either the card is in the Reset condition or the card has failed.

Steady Red with Active LED on indicates the card was active prior to failing.

Steady Red with Standby LED on indicates the card was standby prior to failing.

Line Status Indicator LEDs

Green

Green indicates the port is active.

Red

Red indicates a local alarm on the port.

Yellow

Yellow indicates a remote alarm on the port.

Off indicates the port has not been activated (upped).

Reliability

> 85000 hours MTBF (target)

Card Size

7.25 inches by 16.5 inches

Number of T3 Lines

Two

Line Interface Connector

75 ohm BNC

Line Rate

44.736 Mbps +/- 20 ppm

Line Coding

B3ZS

Transmit Timing

Normal or Loop timed

Input Jitter Tolerance

Per TR-TSY-000499

Output Jitter

0.05 UI maximum with jitter-free input clock

Output Pulse

Per T1.102.1993

Frame Relay Interface

ANSI T1.618, 2-octet header

ATM Layer

CCITT I.361 and ATM UNI v3.1

AAL Layer

AAL5 per Draft CCITT I.363

FR-Cell Interworking

Per Draft CCITT I.555 and I.36x.1, as summarized in "ATM-to-Frame Relay Interoperability Implementation Agreement" v 1.0

Power

48 VDC, 50W (estimated)

Card Status Indicator LEDs

ACT

Green

On indicates the card set is in active mode.

STBY

Yellow

Slow blink without the Active LED indicates the card is in the boot state.

Fast blink with the Active LED indicates the card is being downloaded.

Fast blink indicates the service module is passing BRAM channel information to the ASC.

Steady yellow indicates the card is in Standby mode and the firmware is executing ADMIN code.

Fail

Red

Steady Red with Active and Standby LEDs off indicates either the card is in the Reset condition or the card has failed.

Steady Red with Active LED on indicates the card was active prior to failing.

Steady Red with Standby LED on indicates the card was standby prior to failing.

Line Status Indicator LEDs

Green

Green indicates the port is active.

Red

Red indicates a local alarm on the port.

Yellow

Yellow indicates a remote alarm on the port.

Off indicates the port has not been activated (upped).

Reliability

> 85000 hours MTBF (target)

Card Size

7.25 inches by 16.5 inches

Number of T3 Lines

Two

Line Interface Connector

75 ohm BNC

Line Rate

44.736 Mbps +/- 20 ppm

Line Coding

B3ZS

Transmit Timing

Normal or Loop timed

Input Jitter Tolerance

Per TR-TSY-000499

Output Jitter

0.05 UI maximum with jitter-free input clock

Output Pulse

Per T1.102.1993

Number of E3 Lines

Two

Line Interface Connector

75 ohm BNC

Line Rate

34.368 Mbps +/- 20 ppm

Line Coding

HDB3

Transmit Timing

Normal or Loop timed

Input Jitter Tolerance

Per G.823

Output Jitter

0.05 UI maximum with jitter-free input clock per G.823

Output Pulse

Per G.703

Frame Relay Interface

ANSI T1.618, 2-octet header

ATM Layer

CCITT I.361 and ATM UNI v3.1

AAL Layer

AAL5 per Draft CCITT I.363

FR-Cell Interworking

Per Draft CCITT I.555 and I.36x.1, as summarized in ATM-to-Frame Relay Interoperability Implementation Agreement v 1.0

Power

48 VDC, 50W (estimated)
The SCSI2-2HSSI back card consumes 5 watts at 5 VDC and 6W at -5 VDC.

Card Status Indicator LEDs

ACT

Green

On indicates the card set is in active mode.

STBY

Yellow

Slow blink without the Active LED indicates the card is in the boot state.

Fast blink with the Active LED indicates the card is being downloaded.

Fast blink indicates the service module is passing BRAM channel information to the ASC.

Steady yellow indicates the card is in Standby mode and the firmware is executing ADMIN code.

Fail

Red

Steady Red with Active and Standby LEDs off indicates either the card is in the Reset condition or the card has failed.

Steady Red with Active LED on indicates the card was active prior to failing.

Steady Red with Standby LED on indicates the card was standby prior to failing.

Line Status Indicator LEDs

Green

Green indicates the port is active.

Red

Red indicates a local alarm on the port.

Yellow

Yellow indicates a remote alarm on the port.

Off indicates the port has not been activated (upped).

Reliability

> 85000 hours MTBF (target)

Card Size

Front card: 7.25" x 16.25" (18.43 cm x 41.28 cm)
Back card: 7" x 4.5" (17.78 cm x 11.43 cm)

Number of HSSI Lines

Two

Connector Type

SCSI-2

Line Rate

44.736 Mbps +/- 20 ppm

Line Coding

B3ZS

Line Framing

not applicable

Line Alarms

• Control lead is inactive
  
  
• Recovered clock does not match configured line rate
  
  

Synchronization

Transmitter may be either loop-timed to Receiver (DTE mode), or synchronized to shelf, (DCE mode)

Input Jitter Tolerance

Per TR-TSY-000499

Output Jitter

0.05 UI maximum with jitter-free input clock

Output Pulse

Per T1.102.1993

Received frames lost due to aborts

Received frames lost due to illegal header (EA bit)

Received frames lost due to CRC errors

Received frames with bit alignment errors

Received frames with unknown DLCI

Received frames with illegal frame length

Received good frame

Transmit frames lost due to under-run/Abort count

Transmit good frame

LMI status inquiry request count

LMI signaling protocol (keep alive time-out count)

LMI sequence number error count

LMI status transmit count (in response to request)

LMI update status transmit count (in response to configuration changes

Frames with FECN set count

Frames with BECN set count

DE frames discarded count

Number of frames reassembled but discarded due to service interface physical layer alarm

Number of received frames

Number of bytes received

Number of frames received with DE = 1

Number of frames received but discarded

Number of received bytes discarded

Number of frames received but discarded due to

• CRC error
  
  
• Illegal frame length
  
  
• Alignment error
  
  
• Abort
  
  

Number of frames reassembled and transmitted

Number of frames reassembled and transmitted with DE = 1

Number of frames discarded due to reassembly errors

Number of frames transmitted

Number of bytes transmitted

Number of frames transmitted with DE set

Number of frames transmitted during LMI logical port alarm

Frames FECN set count

Frames BECN set count

Number of transmit frames discarded

Number of transmit bytes discarded

Number of transmit frames discarded due to

• CRC error
  
  
• Illegal frame length
  
  
• Alignment error
  
  
• Abort
  
  
• DE egress queue threshold exceeded
  
  
• Physical link failure
  
  

Number of cells transmitted to PXM1

Number of cells discarded due to intershelf link alarm

Number of cells transmitted with CLP bit set

Number of AIS cells transmitted

Number of FERF cells transmitted

Number of BCM cells transmitted

Number of end-end loop-back cells transmitted

Number of segment loop-back cells transmitted

Number of cells received from PXM1

Number of cells received with CLP bit set

Number of AIS cells received

Number of FERF cells received

Number of BCM cells received

Number of end-end loop-back cells received

Number of segment loop-back cells received

Number of OAM cells discarded due to CRC-10 error

Header of last cell with unknown LCN

Header of last received frame with unknown DLCI

ECN current queue depth

Indicators per card

Active (Green), Standby (Yellow), Fail (Red)

Indicators per line

Active and Okay (Green)
Active and Local Alarm (Red)
Active and Remote Alarm (Yellow)

Line Interface connector

RJ-48 when used with RJ48-8T1 back card.

Line Rate

1.544 Mbps ± 50 bps

Line Framing

ESF per ATT TR 54016

Maintenance/Serviceability Features

Internal Problem Isolation Loopbacks
Hot-pluggable cards

Reliability, MTBF

> 65000 hours

Card Size

MGX-FRSM-8T1: 7.25" x 16.25"
LM-DB15-8T1: 7.0" x 4.5"
Power: -48 VDC, 30W with 8 active T1 lines

ATM Layer

Per CCITT I.361 and ATM UNI v3.1

AAL Layer

AAL5 per Draft CCITT I.363

FR-Cell Interworking

Per Draft CCITT I.555 and I.36x.1, as summarized in Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FRF.5

Synchronization

Transmitter may be either loop-timed to Receiver or synchronized to shelf (called normal mode)

Input Jitter Tolerance

Per ATT TR 62411

Output Jitter Generation

Per ATT TR 62411 using normal mode synchronization

Physical Layer Alarms

LOS, OOF, AIS, RAI

Number of Frame Relay Ports

One-a single Frame Relay stream occupying N consecutive time slots

Frame Relay Interface Rates

• 56 Kbps. or
  
  
• N x 64 Kbps (where N is the number of consecutive time slots)
  
  

Frame Relay Interface

Per ANSI T1.618, 2-octet header

Frame Relay Performance Counters (per Port; n x DS0)

Received frames discarded due to Aborts
Received frames discarded due to illegal header (EA bit)(s)
Received frames discarded due to CRC error(s)
Received frames discarded due to alignment error(s)
Received frames discarded due to unknown DLCI(s)
Received frames discarded due to illegal frame length(s)
Received frames discarded due to DE threshold exceeded
Received frames with DE already set
Received frames with FECN already set
Received frames with BECN already set
Received frames tagged FECN
Received frame(s)
Received byte(s)
Transmit frames discarded due to underrun
Transmit frames discarded due to Abort
Transmit frames discarded due to egress Q-depth exceeded
Transmit bytes discarded due to egress Q-depth exceeded
Transmit frames discarded due to egress DE threshold
exceeded Transmit frame(s)

Transmit byte(s)
Transmit Frames with FECN set(s)
Transmit Frames with BECN set(s)

LMI receive status inquiry request count(s)
LMI transmit status inquiry request count
LMI invalid receive status count(s)
LMI signaling protocol (keep alive time-out count)(s)
LMI sequence number error count(s)
LMI receive status transmit count (in response to request)
LMI transmit status transmit count (in response to request)
Transmit frames during LMI alarm(s)
Transmit bytes during LMI alarm(s)
LMI update status transmit count (in response
to configuration changes)

Diagnostics (per port):

Last unknown DLCI received

Channels (endpoints) per card

256, which you can allocate across any of the interfaces

Service Counters

Number of frames received (s)
Number of bytes received (s)
Number of frames received with DE already set (s)
Number of bytes received with DE already set (s)
Number of frames received with unknown DLCI
Number of frames received but discarded (s)
Number of received bytes discarded (s)
Number of received bytes discarded due to exceeded Q-depth (s)
Number of frames received and discarded due to: intershelf alarm
exceeded DE threshold (s)
exceeded Q depth (s)
Number of frames received with FECN set
Number of frames received with BECN set
Number of frames received tagged FECN
Number of frames received tagged BECN

Number of frames transmitted (s)
Number of bytes transmitted (s)

Number of frames transmitted with DE set (s)
Number of frames discarded due to reassembly errors (s)
Number of frames transmitted during LMI logical port alarm (s)
Number of frames transmitted with FECN set (s)
Number of frames transmitted with BECN set (s)
Number of transmit frames discarded (s)
Number of transmit bytes discarded
Number of transmit frames discarded due to: CRC error (s)
egress Q depth exceeded (s)
egress DE threshold exceeded source abort
physical link failure (T1)
ATM cells: Number of cells transmitted to PXM1
Number of cells transmitted with CLP bit set
Number of OAM AIS cells transmitted (s)
Number of OAM FERF cells transmitted (s)
Number of BCM cells transmitted
Number of OAM end-end loopback cells transmitted (s)
Number of OAM segment loopback cells transmitted
Number of cells received from PXM1
Number of cells received with CLP bit set
Number of OAM AIS cells received (s)
Number of OAM FERF cells received (s)
Number of BCM cells received
Number of OAM end-end loopback cells received (s)
Number of OAM segment loopback cells received
Number of OAM cells discarded due to CRC-10 error (s)

Statistics:

If any of the counters in the preceding category of Service Counters includes an "(s)," you can configure it for statistics usage.

Diagnostics:

Last unknown LCN received,
Number of cells with unknown LCN.

ATM Layer

Per ITU-T I.361 and ATM UNI v3.1

AAL Layer

AAL5 per Draft CCITT I.363

FR-Cell Interworking

Per Draft CCITT I.555 and I.36x.1, as summarized in Frame Relay Forum, FR/ATM PVC Interworking Implementation Agreement FERF.5

Line Interface connector

RJ-48 when used with RJ-48-8E1 line module SMB when used with SMB-8E1 line module

Line Rate

2.048 Mbps ± 100 bps

Synchronization

Transmitter may be either loop-timed to Receiver or synchronized to shelf (normal mode)

Input Jitter Tolerance

Per G.703

Output Jitter Generation

Per G.703

Physical Layer Alarms

LOS, OOF, AIS, RAI

Card Status Indicator LEDs

ACt

Green

On indicates the card set is in active mode.

STBY

Yellow

Slow blink without the Active LED indicates the card is in the boot state.

Fast blink with the Active LED indicates the card is being downloaded.

Fast blink indicates the service module is passing BRAM channel information to the ASC.

Steady yellow indicates the card is in Standby mode and the firmware is executing ADMIN code.

Fail

Red

Steady Red with Active and Standby LEDs off indicates either the card is in the Reset condition or the card has failed.

Steady Red with Active LED on indicates the card was active prior to failing.

Steady Red with Standby LED on indicates the card was standby prior to failing.

Line Status Indicator LEDs

Green

Green indicates the port is active.

Red

Red indicates a local alarm on the port.

Yellow

Yellow indicates a remote alarm on the port.

Off indicates the port has not been activated (upped).

Maintenance/Serviceability Features

Internal Problem Isolation Loopbacks Hot-pluggable cards

Reliability, MTBF

> 65000 hours

Card Size

MGX-FRSM-8E1: 7.25" x 16.25" (18.43 cm x 41.28 cm)
RJ48-8E1: 7.0" x 4.5" (17.78 cm x 11.43 cm)
SMB-8E1: 7.0" x 4.5" (17.78 cm x 11.43 cm)

Power

-48V DC, 30W with 8 active E1 lines

Number of Frame Interfaces

1-31 occupying n, where 1 < n < 31. Sum of all < 31 for CCS or 1-30 for CAS.

Frame Relay Interface Rates

Either 56 Kbps or Nx64 Kbps, where n is the same as defined in the preceding item the preceding item "Number of Frame Interfaces."

Ingress

8000 cell buffer shared between virtual channels/paths
standard usage parameter control (UPC)
Selective Cell Discard
Virtual Circuit Queuing
EFCI setting per VC

Egress

8000 cell storage capacity shared between four ports
Up to 12 user-selectable egress queues per port
Selective Cell Discard
EFCI setting per Queue

Frame Relay Interface

Per ANSI T1.618, 2-octet header

Frame Relay Performance Counters (per Port; NxDS0)

Received frames discarded due to Aborts
Received frames discarded due to illegal header (EA bit)(s)
Received frames discarded due to CRC error(s)
Received frames discarded due to alignment error(s)
Received frames discarded due to unknown DLCI(s)
Received frames discarded due to illegal frame length(s)
Received frames discarded due to DE threshold exceeded
Received frames with DE already set
Received frames with FECN already set
Received frames with BECN already set
Received frames tagged FECN
Received frame(s)
Received byte(s)

Transmit frames discarded due to underrun
Transmit frames discarded due to Abort
Transmit frames discarded due to egress Q-depth exceeded
Transmit bytes discarded due to egress Q-depth exceeded
Transmit frames discarded due to egress DE threshold exceeded Transmit frame(s)
Transmit byte(s)
Transmit Frames with FECN set(s)
Transmit Frames with BECN set(s)
LMI receive status inquiry request count(s)
LMI transmit status inquiry request count
LMI invalid receive status count(s)
LMI signaling protocol (keep alive time-out count)(s)
LMI sequence number error count(s)
LMI receive status transmit count (in response to request)
LMI transmit status transmit count (in response to request)
Transmit frames during LMI alarm(s)
Transmit bytes during LMI alarm(s)
LMI update status transmit count (in response to configuration changes)

Diagnostics (per port):

Last unknown DLCI that arrived

Channels (Endpoints)

256 per card—can be allocated across any of the frame relay interfaces

Counters

Number of frames received
Number of bytes received
Number of frames received with DE already set(s)
Number of bytes received with DE already set(s)
Number of frames received with unknown DLCI
Number of frames received but discarded
Number of received bytes discarded
Number of received bytes discarded due to exceeded Q-Depth(s)
Number of frames received and discarded due to

• intershelf alarm
  
  
• exceeded DE threshold(s)
  
  
• exceeded Q depth(s)
  
  

Number of frames received with FECN set
Number of frames received with BECN set

Counters

Number of frames received tagged FECN
Number of frames received tagged BECN
Number of frames transmitted
Number of bytes transmitted
Number of frames transmitted with DE set(s)
Number of frames discarded due to reassembly error(s)
Number of frames transmitted during LMI logical port alarm(s)
Number of frames transmitted with FECN set(s)
Number of frames transmitted with BECN set(s)
Number of transmit frames discarded
Number of transmit bytes discarded
Number of transmit frames discarded due to: CRC error(s)
egress Q depth exceeded
egress DE threshold exceeded source abort physical link failure (T1)

ATM cells

Number of cells transmitted to PXM1
Number of cells transmitted with CLP bit set
Number of OAM AIS cells transmitted
Number of OAM FERF cells transmitted
Number of BCM cells transmitted
Number of OAM end-end loopback cells transmitted
Number of OAM segment loopback cells transmitted
Number of cells received from PXM1
Number of cells received with CLP bit set
Number of OAM AIS cells received
Number of OAM FERF cells received
Number of BCM cells received
Number of OAM end-end loopback cells received
Number of OAM segment loopback cells received
Number of OAM cells discarded due to CRC-10 error(s)
Statistics: All of the above counters followed by an(s) can be configured as statistics.
Diagnostics: 8Last unknown LCN received
Cells with unknown LCN count
Card General

Connectors

BNC-3T3, with three pairs of BNC connectors

T1/E1 Line Interface Connector on Service Modules

No connectors required for primary service module. If the MGX-SRM-3T3 provides 1:N redundancy, the standby service module requires a special back card:
R-RJ48-8T1 or R-RJ48-8E1.

T1 Channel Rate

T1: 1.544 Mbps ±75 bps (50 ppm)

Transmit Clocking

Normal or looped clocking

Input Jitter Tolerance

Per AT&T Accunet T1.5 Service 1990-T1
Per G.703-E1

Physical Layer Alarms

Indicated in respective Service Modules

Physical Layer Performance Statistics

—

LED Indicators per Card

Active (green), Failed (red), Standby (yellow)

BERT

Active (green), Errors (yellow)

1 to N Redundancy

Active (green)

Indicator for each T3 lone

Active (green)

Maintenance/Serviceability Features

DS1 Loopback toward service modules

Hot pluggable

Reliability

>85000 hours MTBF

Card Size

Front card 7.25" (18.43 cm) x 16.25" (41.28 cm)
Back card 7" (17.78 cm) x 4.5" (11.43 cm)

Power

48 VDC, 50W

Loopback codes

Fractional T1 inband loopback-
ANSI T1/E1-2/92-003 R3

DS0 loopback-
TA-TSY-000055
TA-TSY-000057
TA-TSY-0000476

Monitoring trouble codes

TA-TSY-000077
TA-TSY-0000280
ATT TR-62310

Back Card

RJ48-8T1

Line Rate

T1: 1.544 Mbps ±75 bps (50 ppm)

Transmit Clocking

Normal clock or SRTS generated

Line Coding

B8ZS
AMI

Frame mode

SF
ESF

Line alarms

Loss of signal (LOS)
Loss of frame (LOF)
Loss of multiframe (LOMF)
Remote loss of signal or frame (RAI)
All ones received (AIS)
Bipolar violation

Alarm indication times

Near end alarm up-count
Near end alarm down-count
Near end alarm maximum count
Far end alarm up-count
Far end alarm down-count
Far end alarm maximum count

Supported OAM cells

AIS
FERF
End-to-end loopback
Segment loopback
RTD loopback
BCM

Physical Layer Performance Statistics

—

LED Indicators Per Card

Active (green), Failed (red), Standby (yellow)

BERT

T1 E1 1.2

1-to-N Redundancy

Active (green)

Indicator for each T1

Active (green)

Reliability, MTBF

—

Card Size

Front card: 7.25" x 16.25" (18.43 cm x 41.28 cm)
Back card: 7" x 4.5" (17.78 cm x 11.43 cm)

Power

48 VDC, 50W

Loopbacks

On or Off

Back Card

RJ48-8E or SMB-8E1

Line Rate

E1: 2.048 Mbps ± 100 bps (50 ppm)

Transmit Clocking

Normal clock or SRTS generated

Line Coding

HDB3
AMI

Frame mode

single frame
multiframe

Line alarms

Loss of signal (LOS)
Loss of frame (LOF)
Loss of multiframe (LOMF)
Remote loss of signal or frame (RAI)
All ones received (AIS)
Bipolar violation

Alarm indication times

Near end alarm up-count
Near end alarm down-count
Near end alarm maximum count
Far end alarm up-count
Far end alarm down-count
Far end alarm maximum count

Supported OAM cells

AIS
FERF
End-to-end loopback
Segment loopback
RTD loopback
BCM

Physical Layer Performance Statistics

N/A

Card-level

Active (green), Failed (red), Standby (yellow)

BERT

Active (green), Errors (yellow)

1-to-N Redundancy

Active (green)

Indicator for each T1

Active (green)

Reliability, MTBF

—

Card Size

Front card: 7.25" x 16.25" (18.43 cm x 41.28 cm)
Back card: 7" x 4.5" (17.78 cm x 11.43 cm)

Power

48 VDC, 50W

Loopbacks

On or Off