Grass Valley 8937 v.1.0.0 - Manual (Page 14)

14 8937/8937D Instruction Manual
Power Up
Power Up
The front LED indicators and configuration switches are illustrated for the
8937 in
Figure 7 . The 8937D module has an addition row of identical LEDs
labeled for DA 1 and DA 2. Upon power-up, the green PWR LED should
light and the yellow CONF LED should illuminate for a few seconds for the
duration of module initialization.
Figure 7. LEDs and Configuration Switches
Operation Indicator LEDs
Refer to Figure 7 and Table 2 for the name and meaning of each of the board
edge operating indicators on the module circuit board.
Table 2. Board Edge LED Names and Meaning
LED 8937
8937D
Condition
DA 1 DA 2
FAULT
(red)
Off Off Off Normal operation.
On continuously On On Module has detected an internal fault. (Refer to Functional Description on page 30 .)
Long Flash Long Flash Long Flash Input missing or input does not match bit rate set with manual mode.
COMM
(yellow)
Off Off Off No activity on frame communication bus.
3 Quick Pulses
3 Quick
Pulses
3 Quick
Pulses
Locate Module command received by the module from a remote control system.
Short flash Short flash Short flash Activity present on the frame communication bus.
CONF
(yellow)
Off Off Off Module is in normal operating mode.
On continuously On On Module is initializing, changing operating modes or programming hardware.
PWR
(green)
Off Off Off No power to module or module’s DC/DC converter failed.
On On On Normal operation, module is powered.
GRASS VALLEY 8937D SDI RECLOCKING EQ SNMP DA 8937
8270_05
FAULT (red)
COMM (yellow)
CONF (yellow)
PWR (green)
SIG PRES
143Mb
BYPASS
177Mb
270Mb
360Mb
REM OVR