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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 15 Shelf Hardware Reference
15.4.2 Y-Cable Protection Module
Table 15-3 details the single-mode and multimode front panel Protection A mapping. It shows how the
module splits a single receive input from the equipment into two DWDM output signals (working and
protect) to the TXP client port.
Table 15-4 details the single-mode and multimode front panel Protection B mapping. It shows how two
DWDM receive inputs (client working and protect) provide one output signal to the equipment, using
the module combiner function.
Table 15-5 details the single-mode and multimode front panel Protection B mapping. It shows how the
module splits a single receive input from the equipment into two DWDM output signals (working and
protect) to the client.
The following muxponder (MXP) and transponder (TXP) cards can use Y-cable protection:
• MXP_2.5_10G
• MXP_2.5_10E
• MXP_MR_2.5G
• TXP_MR_10G
• TXP_MR_10E
• TXP_MR_2.5G
Table 15-3 Protection A (TXP Cards 1 and 2) Port Mapping: Splitter to DWDM
Receive Port Signal Source
10 (RXa) TX port on customer client equipment A
Transmit Port Signal Destinations
2 (TXa1) Client RX port on the TXP 1 card
7 (TXa2) Client RX on the TXP 2 card
Table 15-4 Protection B (TXP Cards 3 and 4) Port Mapping: Combiner from DWDM
Receive Port Signal Sources
3 (RXb1) Client TX port on the TXP 3 card
8 (RXb2) Client TX port on the TXP 4 card
Transmit Port Signal Destination
11 (TXb) RX port on customer client equipment B
Table 15-5 Protection B (TXP Cards 3 and 4) Port Mapping: Splitter to DWDM
Receive Port Number Signal Source
12 (RXb) TX port on customer client equipment B
Transmit Port Number Signal Destinations
4 (TXb1) Client RX on the TXP 3 port
9 (TXb2) Client RX on the TXP 4 port
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