Cisco ONS 15454 DWDM Reference Manual, Release 9.2

9.1.1 Card Summary

Table 9-1 lists and summarizes information about each ROADM card.

9.1.2 Card Compatibility

Table 9-2 lists the Cisco Transport Controller (CTC) software compatibility for the ROADM cards.

9.1.3 Interface Classes

The input interface cards have been grouped in classes listed in Table 9-3 . The subsequent tables list the optical performance and output power of each interface class.

Table 9-4 lists the optical performance parameters for 40-Gbps cards.

Table 9-5 , Table 9-6 , and Table 9-7 lists the optical performance parameters for 10-Gbps cards.

Table 9-8 and Table 9-9 lists the optical interface performance parameters for 2.5-Gbps cards.

9.1.4 Channel Allocation Plans

ONS 15454 DWDM ROADM cards are designed for use with specific channels in the C band and L band. In most cases, the channels for these cards are either numbered (for example, 1 to 32 or 1 to 40) or delimited (odd or even). Client interfaces must comply with these channel assignments to be compatible with the ONS 15454 system.

. The following cards operate in the C-band:

• 32WSS
• 32DMX
• 32DMX-C
• 40-MUX-C
• 40-WXC-C
• 80-WXC-C
• 40-SMR1-C
• 40-SMR2-C
• MMU

Table 9-10 lists the C-band channel IDs and wavelengths at ITU-T 50-GHz intervals. This is a comprehensive C-band channel table that encompasses present and future card capabilities.

.

The following add drop cards utilize the L-band DWDM channels:

• 32WSS-L
• 32DMX-L

Table 9-11 lists the L-band channel IDs and wavelengths at ITU-T 50-GHz intervals. This is a comprehensive L-band channel table that encompasses present and future card capabilities.

9.2.1 Class 1M Laser Product Statement

Figure 9-1 shows the Class 1M Laser Product statement.

Figure 9-1 Class 1M Laser Product Statement

Class 1M lasers are products that produce either a highly divergent beam or a large diameter beam. Therefore, only a small part of the whole laser beam can enter the eye. However, these laser products can be harmful to the eye if the beam is viewed using magnifying optical instruments.

9.2.2 Hazard Level 1M Label

Figure 9-2 shows the Hazard Level 1M label. The Hazard Level label warns users against exposure to laser radiation by Class 1 limits calculated in accordance with IEC60825-1 Ed.1.2. This label is displayed on the faceplate of the cards.

Figure 9-2 Hazard Level Label

9.2.3 Laser Source Connector Label

Figure 9-3 shows the Laser Source Connector label. This label indicates that a laser source is present at the optical connector where the label is located.

Figure 9-3 Laser Source Connector Label

9.2.4 FDA Statement Label

The FDA Statement labels are shown in Figure 9-4 and Figure 9-5. These labels show compliance to FDA standards and that the hazard level classification is in accordance with IEC60825-1 Am.2 or Ed.1.2.

Figure 9-4 FDA Statement Label

Figure 9-5 FDA Statement Label

9.2.5 Shock Hazard Label

Figure 9-6 shows the Shock Hazard label. This label alerts you to electrical hazards within a card. A shock hazard exists when you remove adjacent cards during maintenance, or when you touch exposed electrical circuitry on the card itself.

Figure 9-6 Shock Hazard Label

9.3.1 32WSS Faceplate Ports

The 32WSS has six types of ports:

• ADD RX ports (1 to 32): These ports are used for adding channels (listed in Table 9-13). Each add channel is associated with an individual switch element that selects whether that channel is added. Each add port has optical power regulation provided by a variable optical attenuator (VOA). The 32WSS has four physical receive connectors that accept multifiber push-on (MPO) cables on its front panel for the client input interfaces.Each MPO cable breaks out into eight separate cables.
• EXP RX port: The EXP RX port receives an optical signal from another 32WSS card in the same network element (NE).
• EXP TX port: The EXP TX port sends an optical signal to the other 32WSS card within the NE.
• COM TX port: The COM TX (line input) port sends an aggregate optical signal to a booster amplifier card (for example, OPT-BST) for transmission outside of the NE.
• COM RX port: The COM RX port receives the optical signal from a preamplifier (such as the OPT-PRE) and sends it to the optical splitter.
• DROP TX port: The DROP TX port sends the split-off optical signal containing drop channels to the 32DMX card, where the channels are further processed and dropped.

Figure 9-7 shows the 32WSS card front panel and identifies the traffic flow through the ports.

Figure 9-7 32WSS Faceplate and Ports

9.3.2 32WSS Block Diagram

Figure 9-8 provides a high-level functional block diagram of the 32WSS card and Figure 9-9 shows how optical signals are processed on the EXP RX and COM RX ports.

Figure 9-8 32WSS Block Diagram

Aggregate optical signals that enter the EXP RX and COM RX port are processed in two ways: Add channel/pass-through and optical splitter processing. The optical processing stages are shown in Figure 9-9, which provides a detailed optical functional diagram of the 32WSS card.

Figure 9-9 32WSS Optical Block Diagram

The EXP RX PORT and COM RX PORT operate as follows:

• EXP RX Port Add Channel/Pass-through Processing

The incoming optical signal is received at the EXP RX port from the other 32WSS card within the NE. The incoming aggregate optical signal is demultiplexed into 32 individual wavelengths, or channels. Each channel is then individually processed by the optical switch, which performs add/pass-through processing. By using software controls, the switch either selects the optical channel coming in from the demultiplexer (that is, the pass-through channel) or it selects the external ADD channel. If the ADD port channel is selected this channel is transmitted and the optical signal coming from the demultiplexer is blocked.

After the optical switch stage, all of the channels are multiplexed into an aggregate optical signal, which is sent out on the COM TX port. The output is typically connected to an OPT-BST or OPT-BST-E card (in the event a booster amplifier is needed) or to an OSC-CSM card (if no amplification is needed).

• COM RX Port Optical Splitter Processing

The COM RX port receives the incoming optical signal and directs it to the 32WSS card’s optical splitter. The splitter optically diverts channels that are designated to be dropped to the DROP TX port. The DROP TX port is typically connected to the COM RX port of the 32DMX where the drop channels are being dropped. Channels that are not dropped pass-through the optical splitter and flow out of the 32WSS card EXP TX port. Typically, this optical signal is connected to the other 32WSS module within the NE.

• COM TX Port Monitoring

The COM TX value can be measured by either a physical or a virtual photodiode of the 15454-32WSS card. If the vendor ID of the 15454-32WSS card is between 1024 (0x400) and 2047 (0x800) the COM TX value is measured by physical photodiode. If the vendor ID of the 15454-32WSS card is greater than 2048 (0x800), the COM TX value is measured by the virtual photodiode. For COM TX values measured by virtual photodiode, check the values at the RX port in the downstream of the COM TX port (COM-RX port on OPT-BST or OSC-CSM card).

9.3.3 32WSS ROADM Functionality

The 32WSS card works in combination with the 32DMX card to implement ROADM functionality. As a ROADM node, the ONS 15454 can be configured to add or drop individual optical channels using CTC, Cisco TransportPlanner, and Cisco Transport Manager (CTM). ROADM functionality using the 32WSS card requires two 32DMX single-slot cards and two 32WSS double-slot cards (totalling six slots needed in the ONS 15454 chassis).

For other cards’ ROADM functionality, see that card’s description in this chapter. For a diagram of a typical ROADM configuration, see the “ROADM Node” section.

Note A terminal site can be configured using only a 32WSS card and a 32DMX card plugged into the east or west side of the shelf.

9.3.4 32WSS Power Monitoring

Physical photodiodes P1 through P69 monitor the power for the 32WSS card. Table 9-12 shows how the returned power level values are calibrated to each port.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the “CTC Port Numbers and TL1 Aids” section in Cisco ONS SONET TL1 Command Guide, Release 9.2.

9.3.5 32WSS Channel Allocation Plan

The 32WSS Card’s channel labels, frequencies, and wavelengths are listed in Table 9-13.

9.3.6 32WSS Card-Level Indicators

Table 9-14 describes the three card-level LED indicators on the 32WSS card.

9.3.7 32WSS Port-Level Indicators

You can find the alarm status of the 32WSS card’s ports using the LCD screen on the ONS 15454 fan-tray assembly. The screen displays the number and severity of alarms on a given port or slot. For the procedure to view these counts, refer to “Manage Alarms” in the Cisco ONS 15454 DWDM Procedure Guide.

9.4.1 32WSS-L Faceplate Ports

The 32WSS-L card faceplate has six types of ports:

• ADD RX ports (1 to 32): These ports are used for adding channels (which are listed in Table 9-16). Each add channel is associated with an individual switch element that selects whether the channel is added. Each add port has optical power regulation provided by a VOA.
• EXP RX port: The EXP RX port receives an optical signal from another 32WSS-L card in the same NE.
• EXP TX port: The EXP TX port sends an optical signal to the other 32WSS-L card within the NE.
• COM TX port: The COM TX port sends an aggregate optical signal to a booster amplifier card (for example, the OPT-BST card) for transmission outside of the NE.
• COM RX port: The COM RX port receives the optical signal from a preamplifier (such as the OPT-PRE) and sends it to the optical splitter.
• DROP TX port: The DROP TX port sends the split-off optical signal with drop channels to the 32DMX-L card, where the channels are further processed and dropped.

Figure 9-10 shows the 32WSS-L module front panel and identifies the traffic flow through the ports.

Figure 9-10 32WSS-L Faceplate and Ports

9.4.2 32WSS-L Block Diagram

Figure 9-11 provides a high-level functional block diagram of the 32WSS-L card and Figure 9-12 shows how optical signals are processed on the EXP RX and COM RX ports.

Figure 9-11 32WSS-L Block Diagram

Aggregate optical signals that enter the EXP RX and COM RX ports are processed in two ways: add channel/pass-through and optical splitter processing. The optical processing stages are shown in Figure 9-12, which provides a detailed optical functional diagram of the 32WSS-L card.

Figure 9-12 32WSS-L Optical Block Diagram

The EXP RX PORT and COM RX PORT operate as follows:

• EXP RX Port Add Channel/Pass-through Processing

The incoming optical signal is received at the EXP RX port from the other 32WSS-L card within the NE. The incoming aggregate optical signal is demultiplexed into 32 individual wavelengths, or channels. Each channel is then individually processed by the optical switch, which performs add/pass-through processing. By using software controls, the switch either selects the optical channel coming in from the demultiplexer (that is, the pass-through channel) or it selects the external ADD channel. If the ADD port channel is selected this channel is transmitted and the optical signal coming from the demultiplexer is blocked.

After the optical switch stage, all of the channels are multiplexed into an aggregate optical signal, which is sent out on the COM TX port. The output is typically connected to an OPT-AMP-L or OPT-BST-E card (in the event a booster amplifier is needed) or to an OSC-CSM card (if no amplification is needed).

• COM RX Port Optical Splitter Processing

The COM RX port receives the incoming optical signal and directs it to the 32WSS-L card’s optical splitter. The splitter optically diverts channels that are designated to be dropped to the DROP TX port. The DROP TX port is typically connected to the COM RX port of the 32DMX-L where the drop channels are being dropped. Channels that are not dropped pass-through the optical splitter and flow out of the 32WSS-L card EXP TX port. Typically, this optical signal is connected to the other 32WS-L module within the NE.

9.4.3 32WSS-L ROADM Functionality

The 32WSS-L works in combination with the 32DMX-L to implement L-band (1570 to 1620 nm) functionality. As a ROADM node, the ONS 15454 can be configured to add or drop individual optical channels using CTC, Cisco TransportPlanner, and CTM. ROADM functionality using the 32WSS-L card requires two 32DMX-L single-slot cards and two 32WSS-L double-slot cards (totalling six slots needed in the ONS 15454 chassis).

For other cards’ ROADM functionality, see that card’s description in this chapter. For a diagram of a typical ROADM configuration, see the “ROADM Node” section.

Note A terminal site can be configured using a 32WSS-L card and a 32DMX-L card plugged into the east or west side of the shelf.

9.4.4 32WSS-L Power Monitoring

Physical photodiodes P1 through P69 monitor the power for the 32WSS-L card. Table 9-15 shows the returned power level values calibrated to each port.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the “CTC Port Numbers and TL1 Aids” section in Cisco ONS SONET TL1 Command Guide, Release 9.2.

9.4.5 32WSS-L Channel Plan

The 32WSS-L card uses 32 banded channels on the ITU-T 100-GHz grid, as shown in Table 9-16 .

9.4.6 32WSS-L Card-Level Indicators

Table 9-17 describes the three card-level LED indicators on the 32WSS-L card.

9.5.1 32DMX Faceplate Ports

The 32DMX card has two types of ports:

• COM RX port: COM RX is the input port for the aggregate optical signal being demultiplexed. This port is supported by a VOA for optical power regulation and a photodiode for optical power monitoring.
• DROP TX ports (1 to 32): On its output, the 32DMX provides 32 drop ports (listed in Table 9-19) that are typically used for dropping channels within the ROADM node. These ports are connected using four 8-fiber MPO ribbon connectors. The incoming optical signal to the demultiplexer comes into the COM RX port. This input port is connected using a single LC duplex optical connector.Each drop port has a photodiode for optical power monitoring. Unlike the two-slot 32DMX-O demultiplexer, the drop ports on the 32DMX do not have a VOA per channel for optical power regulation. For a description of the 32DMX-O card, see the “32DMX-O Card” section.

Figure 9-13 shows the 32DMX card front panel and the basic traffic flow through the ports.

Figure 9-13 32DMX Faceplate and Ports

9.5.2 32DMX Block Diagram

A block diagram of the 32DMX card is shown in Figure 9-14.

Figure 9-14 32DMX Block Diagram

Figure 9-15 shows the 32DMX optical module functional block diagram.

Figure 9-15 32DMX Optical Module Functional Block Diagram

9.5.3 32DMX ROADM Functionality

The 32DMX card works in combination with the 32WSS card to implement ROADM functionality. As a ROADM node, the ONS 15454 can be configured to add or drop individual optical channels using CTC, Cisco TransportPlanner, and CTM. ROADM functionality using the 32DMX card requires two 32DMX single-slot cards and two 32WSS double-slot cards (for six slots total in the ONS 15454 chassis).

For information about the ROADM functionality for other cards, see that card’s description in this chapter. For a diagram of a typical ROADM configuration, see the “ROADM Node” section.

Note A terminal site can be configured using only a 32WSS card and a 32DMX card plugged into the east or west side of the shelf.

9.5.4 32DMX Power Monitoring

Physical photodiodes P1 through P33 monitor the power for the 32DMX card. The returned power level values are calibrated to the ports as shown in Table 9-18 .

For information on the associated TL1 AIDs for the optical power monitoring points, refer the “CTC Port Numbers and TL1 Aids” section in Cisco ONS SONET TL1 Command Guide, Release 9.2.

9.5.5 32DMX Channel Allocation Plan

The 32DMX card’s channel labels, frequencies, and wavelengths are listed in Table 9-19.

9.5.6 32DMX Card-Level Indicators

Table 9-20 describes the three card-level LED indicators on the 32DMX card.

9.5.7 32DMX Port-Level Indicators

You can find the alarm status of the 32DMX card’s ports using the LCD screen on the ONS 15454 fan-tray assembly. The screen displays the number and severity of alarms on a given port or slot. For the procedure to view these counts, refer to “Manage Alarms” in the Cisco ONS 15454 DWDM Procedure Guide.

9.6.1 32DMX-L Faceplate Ports

The 32DMX-L card has two types of ports:

• COM RX port: COM RX is the input port for the aggregate optical signal being demultiplexed. This port is supported by both a VOA for optical power regulation and a photodiode for optical power monitoring.
• DROP TX ports (1 to 32): On its output, the 32DMX-L card provides 32 drop ports (listed in Table 9-25) that are typically used for dropping channels within the ROADM node. These ports are connected using four 8-fiber MPO ribbon connectors. Each drop port has a photodiode for optical power monitoring. Unlike the two-slot 32DMX-O demultiplexer, the drop ports on the 32DMX-L do not have a VOA per channel for optical power regulation. For a description of the 32DMX-O card, see the “32DMX-O Card” section.

Figure 9-16 shows the 32DMX-L card front panel and the basic traffic flow through the ports.

Figure 9-16 32DMX-L Faceplate and Ports

9.6.2 32DMX-L Block Diagram

Figure 9-17 shows a block diagram of the 32DMX-L card.

Figure 9-17 32DMX-L Block Diagram

Figure 9-18 shows the 32DMX-L optical module functional block diagram.

Figure 9-18 32DMX-L Optical Module Functional Block Diagram

9.6.3 32DMX-L ROADM Functionality

The 32DMX-L card works in combination with the 32WSS-L card to implement ROADM functionality. AS a ROADM node, the ONS 15454 can be configured to add or drop individual optical channels using CTC, Cisco TransportPlanner, and CTM. ROADM functionality using the 32DMX-L card requires two 32DMX-L single-slot cards and two 32WSS-L double-slot cards (for a total of six slots in the ONS 15454 chassis).

For information about ROADM functionality for other cards, see that card’s description in this chapter. For a diagram of a typical ROADM configuration, see the “ROADM Node” section.

Note A terminal site can be configured using only a 32WSS-L card and a 32DMX-L card plugged into the east or west side of the shelf.

9.6.4 32DMX-L Power Monitoring

Physical photodiodes P1 through P33 monitor the power for the 32DMX-L card. The returned power level values are calibrated to the ports as shown in Table 9-21 .

For information on the associated TL1 AIDs for the optical power monitoring points, refer the “CTC Port Numbers and TL1 Aids” section in Cisco ONS SONET TL1 Command Guide, Release 9.2.

9.6.5 32DMX-L Channel Plan

The 32DMX-L card uses 32 banded channels on the ITU-T 100-GHz grid, as shown in Table 9-22 .

9.6.6 32DMX-L Card-Level Indicators

Table 9-23 describes the three card-level LED indicators on the 32DMX-L card.

9.6.7 32DMX-L Port-Level Indicators

You can find the alarm status of the 32DMX-L card’s ports using the LCD screen on the ONS 15454 fan-tray assembly. The screen displays the number and severity of alarms on a given port or slot. For the procedure to view these counts, refer to “Manage Alarms” in the Cisco ONS 15454 DWDM Procedure Guide.

9.7.1 40-DMX-C Faceplate Ports

The 40-DMX-C has two types of ports:

• COM RX port: COM RX is the line input port for the aggregate optical signal being demultiplexed. This port is supported by a VOA for optical power regulation and a photodiode for per channel optical power monitoring.

Note By default, the VOA is set to its maximum attenuation for safety purposes (for example, electrical power failure). A manual VOA setting is also available.

• DROP TX ports (1 to 40): On its output, the 40-DMX-C card provides 40 drop ports that are typically used for dropping channels within the ROADM node. These ports are connected using five physical connectors on the front panel that accept MPO client input cables. (MPO cables break out into eight separate cables.) The 40-DMX-C card also has one LC-PC-II optical connector for the main input.

Figure 9-19 shows the 40-DMX-C card faceplate.

Figure 9-19 40-DMX-C Faceplate

9.7.2 40-DMX-C Block Diagram

Figure 9-20 shows a block diagram of the 40-DMX-C card.

Figure 9-20 40-DMX-C Block Diagram

Figure 9-21 shows the 40-DMX-C optical module functional block diagram.

Figure 9-21 40-DMX-C Optical Module Functional Block Diagram

9.7.3 40-DMX-C ROADM Functionality

The 40-DMX-C card works in combination with the 40-WSS-C card to implement ROADM functionality. As a ROADM node, the ONS 15454 can be configured at the optical channel level using CTC, Cisco TransportPlanner, and CTM. ROADM functionality using the 40-DMX-C card requires two single-slot 40-DMX-C cards and two 40-WSS-C double-slot cards (for a total of six slots in the ONS 15454 chassis).

For other cards’ ROADM functionality, see that card’s description in this chapter. For a diagram of a typical ROADM configuration, see the “ROADM Node” section.

9.7.4 40-DMX-C Power Monitoring

Physical photodiodes P1 through P40 monitor the power at the outputs of the 40-DMX-C card. P41 monitors the total multiplexed power at the input, calibrated to the COM-RX port. Table 9-24 shows the returned power level values calibrated to each port.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the “CTC Port Numbers and TL1 Aids” section in Cisco ONS SONET TL1 Command Guide, Release 9.2.

9.7.5 40-DMX-C Channel Plan

Table 9-25 shows the 40 ITU-T 100-GHz-spaced, C-band channels (wavelengths) that are demultiplexed by the 40-DMX-C card.