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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
SMFIR-2-622/B
The SMFIR-2-622/B is a single-mode fiber, intermediate-reach back card that provides two
OC-12c/STM-4 interfaces, each operating at 622 Mbps.
Figure 1-22 shows a close-up of the
SMFIR-2-622/B faceplate.
Figure 1-22 SMFIR-2-622/B Faceplate
1 Enabled LED
• Green—The back card is active.
• Off—The back card is not active.
3 RX and TX SC connectors for Port 1 and
Port
2
2 Signal LEDs
• Green—The back card is receiving a
signal on the corresponding line.
31021
ENABLED
2-622
SMFIR
P
RX
R
T
1
O
TX
SIGNAL
P
RX
R
T
2
O
TX
SIGNAL
1
2
3
2
3