AT-8000 Series Fast Ethernet Switches Installation Guide
65
3. Attach the fiber optic data cables to the fiber optic ports.
Figure 32. Attaching a Fiber Optic Cable
When attaching a fiber optic cable, be sure to observe the following
guidelines:
❑ Be sure that the cable connector is firmly locked into place in
the port.
❑ ST and SC ports consist of two separate connectors, as shown
in Figure 33. Each connects to a separate fiber strand. One is
for receiving data and the other is for transmitting data. When
connecting a fiber optic cable to a ST or SC port, be sure that
the receiver fiber connector is connected to the transmitter
connector on the remote end-node, and the transmitter fiber
connector is connected to the receiver connector on the
remote node.
Figure 33. ST and SC Ports
D
/C
L/
A
L/
A
D
/C
L/A
D
/C
L/A
D
/C
L/
A
D
/C
L/A
D
/C
L/
A
D
/
C
L/
A
4
TX R
X
12
TX R
X
3
TX
R
X
11
TX
R
X
2
TX
RX
1
0
TX RX
1
TX RX
9
TX RX
L
INK / ACTIVI
L/
A
PO
RT AC
T
IVITY
18
1
TX RX
1
TX RX
ST Port
SC Port
Transmitter
Fiber
Connector
Transmitter
Fiber
Connector
Receiver
Fiber
Connector
Receiver
Fiber
Connector
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