D9412GV3/D7412GV3 | Program Entry Guide | 5.0 AUXPARM EN | 134
Bosch Security Systems, Inc. | 10/11 | F01U170807-02
When the control panel first powers up, the first Heartbeat Poll for Path 1 is sent and is acknowledged in 1 sec.
120 sec after the first Heartbeat Poll is sent, the second Heartbeat Poll for Path 1 is generated and sent to the
central station receiver.
Figure 8: Poll Rate Timeline
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210
1
2
7
3
4
5
6
8
220 230 240 250 260 270
1 - Heartbeat Poll sent
2 - Acknowledgment received
3 - Second Heartbeat Poll sent
4 - No acknowledgment, Heartbeat re-sent, retry #1
5 - No acknowledgment, Heartbeat re-sent, retry
#2
6 - Path declared failed
7 - 10-sec interval
8 - Additional Heartbeats sent at the poll rate time
until acknowledged
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