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LED Indication
Two LEDS indicate Power/Mode and Activity.
The red LED indicates mode and should flash at a 2Hz rate. If any errors are detected with the radio then the LED
will remain lit.
The green LED flashes once for each packet received via radio.
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-GW1 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. JP1 header link should be fitted if this
module is the last one on the RS485 bus. In most cases the JP1 link header should be fitted.
The baud rate can be selected by setting the DIP switches stated above.
The T24-GW1 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
Mantracourt Electronics Limited
Signal
Signal
Direction
->
RX
<-
TX
GND
<-
CTS
Signal
A
B
GND
378
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
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