Avaya Definity SI Maintenance Manual page 1488

Maintenance Object Repair Procedures
LEDs
Table 10-255
Table 10-255. TN792 LED description
Color (from
top to bottom)
Red (top)
Green
Yellow
Red
SPE select switches
Each Duplication Interface circuit pack has a faceplate SPE-select switch with A,
B, or AUTO positions for determining which SPE is active. See
Table 10-256. TN792 SPE-select positions
SPE A setting
A
B
A
B
AUTO
1 If the SPE select switches are in a locked position and either or both of the Duplication
Interface circuit packs are removed, the active SPE remains active, and no
SPE-interchange occurs.
10-702 Issue 4 May 2002
shows the 4 front panel LEDs that signal the following information:
Explanation
Fault detected
Maintenance routine in progress on this circuit pack
Lit when in active carrier.
Flashing LED(s) means one of the following:
optical cable is not attached
optical cable is attached incorrectly
optical cable is broken
transmit or receive hardware on one or both circuit packs is
malfunctioning
one of the DUPINT circuit packs is bad
SPE select switches on both Duplication Interface circuit packs
are set the same (either SPE A or SPE B).
Both switches must be in the same position for this LED to light.
SPE B setting Effect
A Forces carrier A active
B Forces carrier B active
B
A Software determines active carrier
AUTO
Continued on next page
Table 10-256:
1
555-233-123