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Cisco MGX 8950 Hardware Installation Guide
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
Chapter 1 Product Overview
System Hardware Components
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 1-11 shows a close-up of the MGX-1OC12POS-IR faceplate.
Figure 1-11 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
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2
3
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