
8921ADT Instruction Manual 15
Power Up
Operation Indicator LEDs
Refer to Figure 5 and Table 3 for the name and meaning of each of the board
edge operating indicators on the module circuit board.
Table 3. Board Edge LED Names and Meaning
LED Indication Condition
FAULT
(red)
Off Normal operation.
On continuously Module has detected an internal fault. (Refer to
Functional Description
on page 48.)
Long Flash
User configuration problems. Reference input missing or not locked. Processor failed to
load/configure or diagnostics failed on one or more devices.
COMM
(yellow)
Off No activity on frame communication bus.
3 Quick Pulses Locate Module command received by the module from a remote control system.
Short flash Activity present on the frame communication bus.
CONFIG
(yellow)
Off Module is in normal operating mode.
On continuously Module is initializing, changing operating modes or programming hardware.
3 Quick Pulses Locate Module command received by the module from a remote control system.
PWR
(green)
Off No power to module or module’s DC/DC converter failed.
On continuously Normal operation, module is powered.
REM OVR
(yellow)
Off Parameter settings match those set on module switches and jumpers.
On
A setting on the module circuit board switches or jumpers is being overridden by remote control
system.
TRK ON
(green)
Off No delay tracking. Tracking signal not received.
On Auto delay is receiving a tracking delay input.
LOCKED
(green)
Off No reference is present or reference is present but not locked.
On Module is timed to the reference input.
BANK 2
(yellow)
Off Bank 1 of Control rotary switch is active.
On Bank 2 of Control rotary switch is active.
INPUT 1-4
(green)
Off Indicated input is not selected for AES output channel selected with CONTROL rotary switch.
On Indicated input is selected for AES output channel selected with CONTROL rotary switch.
> –40 dBFS/CLIP
CH 1-4
(green/red)
Off Input level is less than –40dBFS and not clipping.
Green Input level is greater than –40dBFS and not clipping.
Red Input level is greater than –40dBFS and clipping.
Comentarios a estos manuales