Sur-Gard SG-System III, Руководство по эксплуатации

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CHAPTER THREE - LINE CARD OPERATING MODES
21
SG-Sys
tem I Operating Man
ual
3
SG-DRL3-IP
After start-up, the line card enters Standby mode and monitors the network connection and the SG-CPM3. Depending on the system's status,
the following conditions will be displayed for each line card:
*The number of flashes on the yellow LED indicates the following errors:
Line Fault
The SG-DRL3/SG-DRL3E/SG-DRL3-2L verifies the telephone line voltage. The 'Line Fault' LED (Red) will come ON when the voltage
drops below 12VDC.
When the line condition returns to normal, the 'Line Fault' LED will be shut OFF.
NOTE: Additional line fault operation if Backup Line option is enabled. See Backup Line option (Option 0E)
for explanation.
SG-CPM3 Error
If the line card cannot detect the SG-CPM3 polling, the line card will start buffering incoming calls. Up to 512 alarm messages for the printer
and computer will be retained in the line card event buffer. When the event buffer is full, the line card will stop answering calls and the status
LED will begin flashing. When the SG-CPM3 Error condition is corrected, the alarm messages in the event buffer will be transmitted to the
SG-CPM3 with the corresponding time/date the alarm has been received.
SG-DRL3/SG-DRL3E/SG-DRL3-2L Data Reception
During data reception, the yellow STATUS LED will turn on. The line card decodes all information received and stores the information in
its Event Buffer. When a valid signal is received, the line card sends a kiss-off signal and transmits the decoded alarm signal to the computer
and to the printer through the SG-CPM3. The line card will send each message it receives to the printer for review by the system operator.
Two messages may be sent to the printer to indicate reception problems: invalid report and communication fail.
Fault Data Message
When this problem is encountered, the following information is transmitted to the printer and the computer:
LED ON OFF FLASHING
LINE
(Green) Network
Present Network
Absent N/A
STATUS
(Yellow) Trouble
Condition(s) Off-line *Error
condition
WATCHDOG
(Blue) Line Card
not functional Line Card
functional
Flashes Error
1 CPM absent
2 Line card busy
3 Printer buffer full
4 Computer buffer full
5 Checksum failed when downloading flash ROM
files.