Avaya Definity SI Maintenance Manual page 190

Routine Maintenance Procedures
Physical Layer
Is there an optical signal between the TN230X and the A500?
1. Does the TN230X's yellow LED flash 100ms on/100ms off, indicating a loss
of signal on the fiber? The TN230X detects continuity problems with either
the Transmit (bottom) or the Receive (top) fibers.
2. Is the A500 port's CD LED off, indicating a loss of signal on the fiber? The
A500 detects continuity problems only with the Receive (right-hand) fiber;
the state of the Transmit (left-hand) fiber is not detected.
3. Type show signaling summary on the A500 console.
the output.
A500:show signaling summary
Port loc VCI
------ -------
A1.1 1
A1.2 2
Screen 5-25. A500: show signaling summary screen
Ensure that the fields have the values indicated below.
SAP
State
State
4. Enter show system interfaces on the A500 console.
5-87 shows an example of the screen output.
5-86 Issue 4 May 2002
SAP IntType Signaling
--- ------- -----------
1 Network UNI3.1
2 Network UNI3.1
Up
If it is PHY_DOWN or DOWN, then there is probably a loss of signal on
the port in question. This command detects a continuity problem only
with the Receive (right-hand) fiber; it does not detect the state of the
Transmit (left-hand) fiber.
The value of may be UP or DOWN, depending on the administration of
It may be necessary to re-administer the A500 port
the port.
boards. Refer to the Cajun A500 Quick Reference for further
information.
Screen 5-25
ILMI SAP State State
---- ------------ -----
No UP UP
No UP UP
Screen 5-26 on page
shows
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