When using the network interface (B420, B426 or DX4020) on the SDI bus addressed as 88 or 92, Comm Troubles will display as:
SDI## along with the programmed path followed by the device address.
Device Message Failing to Poll on:
SDI88 Comm Trouble / Fail SDI 88 Address 88, Path 1
SDI88 Comm Trouble / Fail SDI 89 Address 88, Path 2
SDI88 Comm Trouble / Fail SDI 90 Address 88, Path 3
SDI88 Comm Trouble / Fail SDI 91 Address 88, Path 4
SDI92 Comm Trouble / Fail SDI 92 Address 92, Path 1
SDI92 Comm Trouble / Fail SDI 93 Address 92, Path 2
SDI92 Comm Trouble / Fail SDI 94 Address 92, Path 3
SDI92 Comm Trouble / Fail SDI 95 Address 92, Path 4
2. Network interface when used on the SDI bus:
Network interfaces (B420 or B426 or B450) addressed as 1 or 2, will display the Comm Trouble SDI## message with the programmed path followed by the device address as follows:
Device-Addr Message Failing to Poll on:
SDI2-1 Comm Trouble / Fail SDI 11 Path 1, Address 1
SDI2-1 Comm Trouble / Fail SDI 21 Path 2, Address 1
SDI2-1 Comm Trouble / Fail SDI 31 Path 3, Address 1
SDI2-1 Comm Trouble / Fail SDI 41 Path 4, Address 1
SDI2-2 Comm Trouble / Fail SDI 12 Path 1, Address 2
SDI2-2 Comm Trouble / Fail SDI 22 Path 2, Address 2
SDI2-2 Comm Trouble / Fail SDI 32 Path 3, Address 2
SDI2-2 Comm Trouble / Fail SDI 42 Path 4, Address 2
3. New G Series (B8512G/B9512G) and B Series panels using Onboard Ethernet or Cellular:
B-Series panels using Onboard Ethernet or Onboard Cellular will display the Comm Trouble SDI## message with the programmed path followed by the device address as follows:
Device Message Failing to Poll on:
Onboard Ethernet Comm Trouble SDI 10 Path 1, Address 0
Onboard Ethernet Comm Trouble SDI 20 Path 2, Address 0
Onboard Ethernet Comm Trouble SDI 30 Path 3, Address 0
Onboard Ethernet Comm Trouble SDI 40 Path 4, Address 0
Onboard Cellular Comm Trouble SDI 18 Path 1, Address 8
Onboard Cellular Comm Trouble SDI 28 Path 2, Address 8
Onboard Cellular Comm Trouble SDI 38 Path 3, Address 8
Onboard Cellular Comm Trouble SDI 48 Path 4, Address 8
- Comm Trouble: Displays when the panel is not receiving an acknowledgement from the receiver prior to making retry attempts.
- Comm Fail: Displays when the panel has not received an acknowledgement from the receiver prior to exhausting all of the programmed retry attempts.
- How to calculate the network supervision interval: Supervision time= Poll Rate + Ack Wait + [Ack Wait x Retry Count]
Example:
Poll =240
Ack=10
Retry Count=10
Supervision time = 240 + 10 + (5 x 10) = 300 seconds
or 250 + 50 = 300seconds
DX4020, B420, 426
