Instruction manual
Concerto — Instruction Manual 137
Troubles hoo tin g
Figure 86. TDM Submodule LEDs Location
8138_04_143r1
ACTIVE
DONE
TRANS 1
LOCK
TRANS 2
LOCK
REC1
LOCK
REC2
LOCK
ACTIVE
DONE
TRANS 1
LOCK
TRANS 2
LOCK
REC1
LOCK
REC2
LOCK
TDM Submodule
rear view
TDM Submodule
front view
Location of
LEDs
Location of
LEDs
Audio Module
TDM Submodule is mounted
under Audio Module
Table 57. TDM Submodule LEDs
LEDs
Label Indication Condition
ACTIVE
(green)
On Active (Master) mode
Off Standby (Redundant) mode
a
Redundant mode is not supported.
a
DONE
(green)
On Normal
Off Problem
b
Verify TDM is properly installed onto its host module and the host module is properly seated.
b
TRANS 1 LOCK
(green)
On Locked to reference and transmitting signals to OUT 1
Off Problem
c
If Done is lit and this is off then there is a cabling problem, verify the cabling.
c
TRANS 2 LOCK
(green)
On Locked to reference and transmitting signals to OUT 2
Off Problem
c
REC 1 LOCK
(green)
On Locked to reference and receiving signals from IN 1
Off Problem
c
REC 2 LOCK
(green)
On Locked to reference and receiving signals from IN 2
Off Problem
c










