8-13
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 8 Transponder and Muxponder Cards
8.4.3 Client Interface
Figure 8-12 TXP_MR_10E Faceplate and Block Diagram
For information on safety labels for the card, see the “8.2.2 Class 1M Laser Product Cards” section on
page 8-6.
Caution You must use a 15-dB fiber attenuator (10 to 20 dB) when working with the TXP_MR_10E card in a
loopback on the trunk port. Do not use direct fiber loopbacks with the TXP_MR_10E card. Using direct
fiber loopbacks causes irreparable damage to the TXP_MR_10E card.
8.4.3 Client Interface
The client interface is implemented with a separately orderable XFP module. The module is a tri-rate
transceiver, providing a single port that can be configured in the field to support an OC-192 SR-1
(Telcordia GR-253-CORE) or STM-64 I-64.1 (ITU-T G.691) optical interface, as well as 10GE LAN
PHY (10GBASE-LR), 10GE WAN PHY (10GBASE-LW), or 10G FC signals.
The client side XFP pluggable module supports LC connectors and is equipped with a 1310-nm laser.
8.4.4 DWDM Trunk Interface
On the trunk side, the TXP_MR_10E card provides a 10-Gbps STM-64/OC-192 interface. There are four
tunable channels available in the 1550-nm band or eight tunable channels available in the 1580-nm band
on the 50-GHz ITU grid for the DWDM interface. The TXP_MR_10E card provides 3R (retime, reshape,
uP bus
Serial bus
uP
Flash
RAM
Optical
transceiver
131186
Framer/FEC/DWDM
processor
FAIL
ACT/STBY
SF
10 Gb/s
TP
1538.19
1538.98
Client
interface
DWDM
trunk
(long range)
Optical
transceiver
Client interface
STM-64/OC-192
or 10GE (10GBASE-LR)
or 10G-FC (1200-SM-LL-L)
B
a
c
k
p
l
a
n
e
TX RX
RX
TX
DWDM trunk
STM-64/OC-192
4 tunable channels (C-band) or
8 tunable channels (L-band) on
the 100-GHz ITU grid
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