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2-P
ORT
1000BASE-SX
AND
2-P
ORT
1000BASE-LX G
IGABIT
E
THERNET
I
NTERFACE
M
ODULES
Q
UICK
S
TART
G
UIDE
As shown in Figure 1, GEN Interface Modules are available in two
models:
■
1000BASE-LX (order number 3CB9LG2SC). Ports on this module use
a 1300-nanometer, multimode/single-mode, optical transceivers
(colored blue) and SC connectors.
■
1000BASE-SX (order number 3CB9LG2MC). Ports on this module
use an 850-nanometer, multimode, optical transceivers (colored
black) and SC connectors.
Figure 1
Front Panels of the GEN Interface Modules
Each GEN Interface Module has two ports on the front (see Figure 1) as
well as two ports on the rear of the module (not shown in Figure 1)
that connect to the chassis backplane. Because the front ports have a
pass-through function to the rear ports, they share port numbers
1 and 2 with the rear ports.
In the 16-slot chassis, you install modules vertically with the LEDs at the
top. In the 7-slot chassis, you install modules horizontally, as shown in
Figure 1.
3CB9LG2SC
TX
RX
1
2
1
2
TX
RX
MOD STAT
Model number
Ejector handle
Module Status LED
Port Status LEDs
Fiber-optic ports
(SC connectors)
3CB9LG2MC
TX
RX
1
2
1
2
TX
RX
MOD STAT
Ejector handle
1000BASE-LX
1000BASE-SX