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Honeywell 301C User Manual
signal and thus prevent reflections. Fortunately, the controller makes
network termination simple as resistors are included on the board.
These can be switched in and out of network by moving the “EOL”
jumpers as shown in the figure on page 12. More information on RS-
485 wiring is published by Maxim Integrated in the TUTORIAL 763
Guidelines for Proper Wiring of an RS-485 (TIA/EIA-485-A) Network .
Settings for Specific Transmitters
Honeywell Sensepoint XCD Transmitters must be configured for 9600
baud, no parity, and a unique address. Honeywell XNX Universal
Transmitters must be configured for 9600 baud and a unique address.
Information on configuring each transmitter is in the associated
technical manual.
Relay Output
The relay output can withstand up to 5A at 30Vdc or 250Vac resistive
load. Relays can be used to activate horns and strobes. Although
each relay is programmed with a default setting (below), they can be
configured using the controller programming menu.
If relays are set to normally closed, the relay is powered up with the
controller and the device linked to the relay is functioning. The relay
will shut down when the associated event is activated.
If the relay is set to normally open, the relay will remain off when the
controller is powered up and the device connected to the relay will only
be activated when the associated event is activated.
Note: These functions are reversed if the controller Failsafe mode has
been activated.
14