Hi All,
I just wanted to confirm something regarding this module. What I understood from the manual, is that if RS-485 mode is selected (jumper settings to match), then it expects a 2 wire link wired to RJ-45 Pin 1 (Data+ aka TXDRXD+) and Pin 8 (Data- aka TXDRXD-), and optionally GND wire to Pin 5 [Not the same role as the screen wire]. (DB-9 pins if the supplied short adapter cable to be used)
If a device is providing 4 wires for this interface, then MCM is not ready for such connection under RS-485, so it either has to
1- change to RS-422
2- change the device to half duplex mode (possibly jumpering TX+ with RX+ and TX- with RX-).
3- Use a gateway in the middle, so the gateway provide only the + & - wires to MCM side.
Is my understanding correct? In other words, does MVI56E-MCM allow RS-485 full duplex without conversion in the middle?
Thanks
I just wanted to confirm something regarding this module. What I understood from the manual, is that if RS-485 mode is selected (jumper settings to match), then it expects a 2 wire link wired to RJ-45 Pin 1 (Data+ aka TXDRXD+) and Pin 8 (Data- aka TXDRXD-), and optionally GND wire to Pin 5 [Not the same role as the screen wire]. (DB-9 pins if the supplied short adapter cable to be used)
If a device is providing 4 wires for this interface, then MCM is not ready for such connection under RS-485, so it either has to
1- change to RS-422
2- change the device to half duplex mode (possibly jumpering TX+ with RX+ and TX- with RX-).
3- Use a gateway in the middle, so the gateway provide only the + & - wires to MCM side.
Is my understanding correct? In other words, does MVI56E-MCM allow RS-485 full duplex without conversion in the middle?
Thanks