Rs232; Example Connection To A Pc 9 Way D Serial Connector; Rs485; Example Connection - Mantracourt T24 User Manual

RS232

The RS232 interface uses TX, RX and GND to connect to a PC, PLC etc. and uses standard RS232 voltage levels.
The baud rate can be selected by setting the DIP switches stated above.
The T24-SO will require power cycling to utilise a baud rate change.

Example connection to a PC 9 way D serial connector.

PC 9 Way D Plug Pin
3 (TX)
2 (RX)
5 (Gnd)
8 (CTS)

RS485

The RS485 interface (This is a 2 wire 485 interface and will not work with 4 wire 485 buses) uses TX, RX and GND
to connect to a PC, PLC etc. and uses standard RS485 voltage levels.
The baud rate can be selected by setting the DIP switches stated above.
The T24-SO will require power cycling to utilise a baud rate change.

Example connection

Depending on the RS485 interface or hardware the connections vary and are not standard therefore we can only
show the connections to the T24-GW1. You must refer to the user manual regarding your RS485 connection to
ascertain the correct connections.
PC / PLC Connection
Refer to RS485 Device User Manual
Refer to RS485 Device User Manual
Refer to RS485 Device User Manual

Serial Limitations

When using RS232 or RS485 you should use the fastest baud rate possible. At lower rates data can be lost

because it can arrive from the radio faster than the gateway station can send it serially.
Mantracourt Electronics Limited
Signal Signal
Direction
-> RX
<- TX
GND
<- CTS
Signal
A
B
GND
245
Base Station Connection
J6 RX or J7 Pin 3
J6 TX or J7 Pin 2
J6 GND or J7 Pin 5
J6 CTS or J7 Pin 8
Base Station Connection
J4 -A
J4 +B
J4 SH
T24 Telemetry User Manual