Specifications
Specifications
U.S. dimensions and capacities are provided for conversion only. Standard products have International System of Units (SI) capacities and dimensions.
Dimensions
Dimensions
U.S. dimensions and capacities are provided for conversion only. Standard products have International System of Units (SI) capacities and dimensions.
Connector Pin Diagram
Connections
This diagram shows the available connections, switches and LEDs.a
The interface baud rate can be selected from the DIP switches SW1.
SW1 Settings
Baud Rate
Switch positions 1 to 4 are not used and can be in any position.
Switch positions 5 to 7 select the baud rate for the serial interface.
Baud Rate / USB | 5 | 6 | 7 |
9600 | On | Off | Off |
19200 | Off | On | Off |
38400 | On | On | Off |
57600 | Off | Off | On |
115200 | On | Off | On |
230400 | Off | On | On |
460800 | On | On | On |
Whether the serial interface is RS485 or RS232 is selected by switch position 8.
232/485 | 8 |
RS232 | Off |
RS485 | On |
Power
The WTS-GW1 requires an external power supply to be connected to J4 on the –V and +V pins.
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 WTS-GW1 will require power cycling to utilize a baud rate change.
Example connection to a PC 9 pin D serial connector.
PC 9 Way D Plug Pin | Signal Direction | Signal | Base Station Connection |
3 (TX) | _> | RX | J6 RX or J7 Pin 3 |
2 (RX) | <_ | TX | J6 TX or J7 Pin 2 |
5 (Gnd) | | GND | J6 GND or J7 Pin 5 |
8 (CTS) | <_ | CTS | J6 CTS or J7 Pin 8 |
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 WTS-GW1 will require power cycling to utilize 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 WTS-GW1. You must refer to the user manual regarding your RS485 connection to ascertain the correct connections.
PC / PLC Connection | Signal | Base Station Connection |
Refer to RS485 Device User Manual | A | J4 -A |
Refer to RS485 Device User Manual | B | J4 +B |
Refer to RS485 Device User Manual | GND | J4 SH |
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.
For more information visit Electrical Wiring Diagrams