UNC500 Hardware Manual V1.3
RBH Access Technologies Inc.
Page
11
of
32
CH1 RS485 Port Baud Rate Selection (Master Only)
The controller's serial port baud rate is set with controller DIP switches 6 and 7. This
setting determines the speed used to communicate with the PC; the controller baud rate
must be the same as the baud rate set for the port within the AxiomV™ software. The
default baud rate is 9600.
Controller Baud Rate Selection
DIP Switch 6
DIP Switch 7
Baud Rate
OFF
OFF
9600
ON
OFF
38400
OFF
ON
57600
ON
ON
115200
Disable Internal RC-2
When dip-switch 8 is on the internal RC-2 is disabled and the #1 RC-2 is polled on the d-
net. This is to allow the UNC500 to replace an existing NC100.
PC Connection
The master controller is connected to either a serial port on the PC or through the local
Ethernet via a static IP address. The means of communication is configured in the
AxiomV
™
software under
Network Properties/Port Type
.
RS485 Connection
The RS485 interface allows the distance between the controller and the PC to be up to
4000 feet (
1200 meters
) at 38.4k baud. RS485 requires a twisted pair cable 22AWG.
Termination is built into the UNC500 and the USB-RS485 module.
