D-500L Firmware V-5.8
K35D03-EN - 25 -
3 wires (A-B-GND). Half duplex.
2400-57600 bauds, selectable
8 bit data, no parity, 1 bit stop
External 120 ohms required
-0.5 VDC to +7VDC, internally clamped by transient suppressors.
1200m @ 9600 bauds (with 120 ohms balanced cable)
200m @ 57600 bauds (with 120 ohms balanced cable)
The RS-485 port features MODBUS-RTU protocol. Multiple modules (up to 128) can be paralleled on the
same RS-485 bus for data transfer to automation or building management systems.
MODBUS RTU, External GSM modem, external PSTN modem
5 wires (Rx-Tx-DTR-CxD-GND). Full duplex.
2400-57600 bauds, selectable
8 bit data, no parity, 1 bit stop
Internal 120 ohms provided
-0.5 VDC to +15 VDC, internally clamped by transient suppressors.
200m with 120 ohm balanced cable
The Modbus register list is available at Datakom
technical support.