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6. KEYBOARD CONNECTORS
RS-485 ports
EKB-500 provides two independent RS-485 ports with 2 RJ-45 plugs each (loop-through).
Pin assignment:
Pin 1: 12 VDC
Pin 3: RS-485 +
Pin 6: RS-485 -
Pin 7: Ground
Pin assignment RJ-45 connector
connector box
Delivery comprises a connector box for RS-485 and 12 VDC power supply connection enabling power
supply connection either directly to the EKB 500 keyboard or through the connector box.
RS-232 connector
The 9-pin Sub-D connector is used for service purposes, e.g. keyboard update with new firmware.
POWER CONNECTOR
Use the 5,5 mm socket for connecting the 12 VDC power supply. The power supply may be installed
either through this socket or through the included connector box.
6
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