13. Troubleshooting
13-90
Troubleshooting from the remote I/O optical adapter LEDs
When creating the remote I/O optical adapter connection configuration depicted in Figure 13-24, identify the
location of the failure by using the combination of LED status for the remote I/O optical adapter.
ST1 to ST3: Remote I/O station modules
RI/O optical ADP (a), (b): Remote I/O optical adapter
Figure 13-24 Remote I/O optical adapter failure locations
Table 13-36 Analyzing failures from remote I/O optical adapter LEDs
No. Failure location
LED status of the
RI/O optical ADP
(a)
LED status of the
RI/O optical ADP
(b)
Corrective action
OPT
TX
OPT
RX
RIO
TX
RIO
RX
OPT
TX
OPT
RX
RIO
TX
RIO
RX
1
No failure Normal ON ON ON ON ON ON ON ON
The location of the failure cannot be determined from the LEDs.
Return to the troubleshooting flow in Figure 13-21, and investigate
the failure according to the instructions in Nos. 2 through 15.
2
A failure occurred
in the cabling
between the RI/O-
IF and RI/O
optical ADP (a), a
cable, or a module
OFF OFF OFF OFF OFF OFF OFF OFF
An error might be present in the remote I/O cable.
Check the connection of the remote I/O cable and the termination
resistor.
3
There might be a problem with the power of the unit in which the
RI/O optical ADP (a) is installed. Check the power status.
4
An error might be present in the RI/O-IF module.
Investigate the RI/O-IF module.
5
ON OFF OFF ON OFF ON OFF OFF Check the rotary switch settings of the RI/O optical ADP (a).
6
OFF --
--
ON --
--
--
--
An error exists in the RI/O optical ADP (a). Replace the RI/O
optical ADP (a).
7
--
ON OFF --
--
--
--
--
An error exists in the RI/O optical ADP (a). Replace the RI/O
optical ADP (a).
8
An error occurred
in the optical
cable.
ON OFF OFF ON
OFF OFF OFF OFF
An error might be present in the optical cable.
Verify the optical cable and the connection.
9
ON ON ON ON
10
A failure occurred
in the cabling
between the I/O
optical ADP (b)
and ST3, a cable,
or a module.
ON OFF OFF ON
OFF OFF OFF OFF
There might be a problem with the power of the unit in which the
RI/O optical ADP (b) is installed. Check the power status.
11
OFF ON ON OFF
An error might be present in the remote I/O cable.
Check the connection of the remote I/O cable and the termination
resistor.
12
An error might be present in the station module.
Check the status and power of the station module.
13
ON ON OFF ON ON ON OFF OFF Check the rotary switch settings of the RI/O optical ADP (b).
14
--
--
--
--
OFF --
--
ON
An error exists in the RI/O optical ADP (b). Replace the RI/O
optical ADP (b).
15
--
--
--
--
--
ON OFF --
An error exists in the RI/O optical ADP (b). Replace the RI/O
optical ADP (b).
ON: LED on, OFF: LED off, --: No relation to LED status
ST1
RI/O
Opti
cal
ADP
ST2
RI/O
Opti
cal
ADP
ST3
RI/O
IF
Failure location:
Optical cable
Failure location: RI/O-IF to RI/O
(a) optical ADP
Failure location: RI/O optical
ADP (b) to ST
Summary of Contents for S10VE
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