EverFocus EKB500 Servisní příručka stáhnout pdf (Strana 8)

EKB500_ma_en_rev1.5_3.doc 8

4 KEYBOARD CONNECTORS

4.1 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.

4.2 RS-232 CONNECTOR

The 9-pin Sub-D connector is used for service purposes, e.g. keyboard update with new firmware.

4.3 POWER CONNECTOR

Use the 5,5 mm socket for connecting the 12 VDC power supply. Centre pin is + 12 VDC. The power

supply may be installed either through this socket or through the included connector box.

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EverFocus EKB500 Servisní příručka Strana 8