C.1.1: Connecting To A Fire Alarm Panel; Improving The Signal Fidelity - Honeywell CGW-MB Installation And User Manual

CLSS Gateway mainboard Board Connections
C.1.1 Connecting to a Fire Alarm Panel
The panel sends data from all its devices to the connected CGW-MB. The data
transmission is based on the connection type and the panel compatibility.
WARNING: WHILE THE CLSS GATEWAY MAINBOARD IS WORKING DO NOT REMOVE CONNECTIONS TO
THE CLSS GATEWAY MAINBOARD, CLSS SITE MANAGER, AND THE PANEL.
NOTE: When the CLSS Gateway mainboard is communicating to a central station
through cellular connection, it uses the primary Ethernet connection for CLSS Site
Manager communications.
NOTE: The interfaces of the CLSS Gateway mainboard board and the panels must be
connected only with compatible cables, devices, and wirings.
NOTE: The total power a panel can distribute among its connected devices is limited.
Therefore, before connecting the CGW-MB to a panel, ensure that the panel can continue
to supply the required power to the CLSS Gateway mainboard as well as other connected
peripherals.
Refer to the panel and other peripherals' documents to know their power requirements.

Improving the Signal Fidelity

An RS-485 loop of a panel with long cable and multiple devices may affect the signal
fidelity. The CLSS Gateway mainboard at the end of such an RS-485 loop can improve the
signal fidelity with its termination resistor.
To enable the termination resistor on the CLSS Gateway mainboard board:
If RS-485A is connected, switch the S4 switch to ON. If RS-485B is connected, switch the
S5 switch to ON.
When there are no signal issues or when the CLSS Gateway mainboard is not at the end
of the loop, ensure that the S4 and S5 switches are switched to OFF.
CGW-MB Installation and Users' Manual | P/N:LS10248-000HW-E | REV.G | JUL/31/2022
Connecting to the Panels
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