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Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter 2 Illustrated Card List for MGX Switches and the MGX 8880 Media Gateway
Back Cards
MGX-1OC12POS-IR
The MGX-1OC12POS-IR is a single-port high-speed uplink (OC-12 POS) back card. This back card
provides a trunk uplink that supports OC-12c/STM-4c bandwidth of 622 Mbps throughput over a
standard SONET/SDH interface through use of a single-mode fiber, intermediate reach SC connector.
The MGX-1OC12POS-IR is installed in the upper rear bay back slot directly behind the RPM-XF.
Figure 2-52 shows the MGX-1OC12POS-IR faceplate. Cables: CAB-SMF-SC (several) and
CAB-SMF-Y-SC.
Figure 2-52 MGX-1OC12POS-IR Faceplate
1 LINK LED
• Green—A link has been established.
• Off—A link has not been established.
3 FAIL LED
• Yellow—The back card has failed.
• Off—The back card is operating properly.
2 TX and RX LEDs
• Green—The back card is receiving or
transmitting traffic.
• Off—The back card is not receiving or
transmitting traffic.
4 TX and RX SC connectors
80748
FAI L
LINK TX
TX
RX
RX
MGX-1OC 12
POS-IR
4
2
3
1