Technical Manual

Technical Manual RF Mono
Connections v1.4 Page 15 of 47
VIS COUNT
J2
Visitors counter connector.
Connect the cable of the visitor counter to this connector.
J21
RS-485 Bus A connector for RJ45 connection.
Allows the board to be connected to the Field bus.
J10
RS-485 Bus B connector for RJ45 connection.
Allows the board to be connected to the Field bus. If this TRX
board is not the last board in the bus, then J2 must be used to
connect the RS-485 bus to the next board (daisy chain).
J14
RELAY outputs (NC, COM & NO).
Allows connection of other external devices, like lamps or buzzers.
Relay max. ratings: 30VDC/1A
RESET
S2
Reset button.
Pressing this button will result in a hardware reset of this board.
This might temporarily affect the synchronization with other RFM
antennas.
SW1
Termination of the Field bus.
The Field bus needs to be terminated properly to avoid signal
reflections which can cause bad communication. The first and last
devices in the Field bus need to terminate the bus.
SW2
Reserved
B1
Battery; supply for real-time clock
J15
I/O’s for external device input/output
J19 GND
Ground connector for connection with antenna frame/base
Table 1: The RF Mono PCB components