Sur-Gard SG-System III, Руководство по эксплуатации

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CHAPTER ONE - INTRODUCTION
14
SG-System I Operating Manual
1
Automation Absent
When the computer is not responding to transmissions, the SG-CPM3 will generate a 'SG-Serialx fail' or 'SG-TCP/IPx Fail' trouble. When the
trouble occurs, the SG-CPM3 will continue to attempt to send a heartbeat signal to the computer until it gets a response. The SG-System III
receiver will make 4 attempts, then wait for the next heartbeat period before making another 4 attempts. The typical heartbeat interval is 30 sec-
onds.
This signal is used to supervise the communication between the receiver and computer automation. It is sent to the computer automation
every 30 seconds and is programmable from the receiver. The computer automation should acknowledge this signal with an [ACK]. The
SG-CPM3 can be programmed to send a heartbeat signal to the computer automation once every 01-99 seconds to test the connection
between the SG-CPM3 and the computer automation (30 seconds is recommended). If a heartbeat fails to get a response from the computer
automation, the SG-CPM3 will immediately transmit the heartbeat again, up to 4 attempts. The SG-System III, by default, will output the
automation signals via TCP/IP. If TCP/IP fails it will switch to the Serial Automation output.
If the serial output fails, the SG-CPM3 will switch to manual mode, all signals will be displayed on the LCD and will require a manual
acknowledgement. To re-establish connection with the TCP/IP a reset SG fall-back command must be generated from the Console software.
If the line card buffers are full, the line cards will stop answering calls.
SG-System III SIA Internal Status Output
Supervisory Heartbeat Signal Protocol (1)
100000sssssssssss@ssss[DC4]
00000 Receiver number (First two digits are
programmed section [14] of the
CMP3. The remaining digits are
always zeros).
s Space Character.
@ Supervisory Signal.
[DC4] Terminator, 14 Hex
0RRLLL[#0000|NYYZZZZ]
0 Protocol ID
RR Receiver number of the SG-CPM3
LLL Line card number, 000 signifies a
SG-CPM3 Event.
0000 SG-System III account.
NYYZ
Z SIA Event
[DC4] Terminator, 14 Hex