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Digidim 503AV / 505 RS232 AV Interface User Guide Helvar Ltd.

Doc. No. 7860076 Page 5 Issue 8

3.2. 505 Interface RS232 Connector

The 505 interface uses the industry standard 9-way D-type socket connector. All

connections conform to the conventional pin designations. The interface uses the transmit

(TX), receive (RX), request to send (RTS) and data terminal ready (DTR) connections. The

new interface does not use the ground connection.

Note: All unspecified pins have no connection.

Old Interface (Black Case)

New Interface (Transparent Case)

Interface Host

DCD 1

RS232 RX 3 TX

power TX 2 RX

+ RTS 7 RTS Set to High

- DTR 4 DTR Set to Low

not used GND 5 GND

9-way D-type

Socket

Interface Host

RS232 RX 3 TX

power TX 2 RX

RTS 7 RTS

DTR 4 DTR

GND 5 GND

9-way D-type

socket

Set Both

to High

1 2 3 4 5 6 7 8 9 10 11 12 ... 15 16

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