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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
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.
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.
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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