The Central Processing Unit (CPU) module controls and monitors Timing Signal Generator operation. It also provides a common interface for operator control of the modules. The module's LEDs are described in the following table.
LED Indicator |
Color |
Description |
RUN |
Green |
On = The module is receiving power and processor is operational. Off = Processor is not operational |
MINOR |
Yellow |
On = A failure exists |
POWER |
Yellow |
One of the -48 V power inputs have failed |
CPU |
Red |
On = Microprocessor has malfunctioned and caused a major alarm |
SYS |
Red |
On = A hardware fault within the TSG system has occurred and caused a major alarm. |
MAJOR |
Red |
On = Loss of synchronization - immediate action is required |
COMM ACTIVE A |
Green |
On = Front panel EIA-232 port is in use. This indicator is used only during data transfer. |
COMM ACTIVE B |
Green |
On = Rear panel EIA-232 port is in use. This indicator is used only during data transfer. |
ENET |
Green |
On = Ethernet packets transmitted or received |
A logical representation of the CPU module with CPU and Alarm status is shown below. The screen's fields are described in the table below.
Field/Section |
Description |
CPU Status |
|
Mode |
Indicates mode of CPU module. Values: Run or Halt |
Status |
Indicates status of CPU module. Values OK or Failed |
Alarm Status |
Indicates whether any alarms are currently active |
Alarm |
Indicates the alarm number |
AID |
Indicates alarm AID |
Notification Code |
Indicates alarm level. Values: Critical, Major, or Minor |
Condition Type |
Condition type for alarms or events |
Service Affecting |
This field Indicates whether an alarm response message affects service. Values: SA or NSA |
Description |
Text description of the alarms indicated |