Owner`s manual

M SERIES DAC

CABLING

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V71 CABLING

The V71 has a DB-25 and two RJ-45 connectors for interface to the host terminal.

The V71 supports three line interfaces: EIA-232, EIA-422, and current loop. The

factory default setting provides EIA-232 line interface on the DB-25 port and the

EIA-232 RJ-45 port. The line interface is programmed by entering the V71

configuration mode (see page 47).

If you change the line interface to EIA-422 in configuration mode, the default

hardware settings provide EIA-422 line interface on the EIA-422/485 RJ-45 port.

You can change a hardware jumper setting on the module that provides EIA-422 line

interface on the DB-25 port. This procedure is discussed on page ???

Current loop line interface is provided on the DB-25 port only.

IMPORTANT: Before you proceed with cabling your equipment to the

V71, you should determine the required line interface for your application

and verify the connector type and pin/signal definitions for your equipment.

V71 DB-25 CABLING FOR EIA-232

The DB-25 port on the V71 has a male DTE type connector and uses the following

pins and signals for communication:

DB-25 PIN/SIGNAL DEFINITION FOR EIA-232 LINE INFORMATION

EIA-

232

Signal

Direction Description

1 PGND ---- Protective Ground

2 TX Output Transmit Data (data out)

3 RX Input Receive Data (data in)

4 RTS Output + 12 volts when the M16/M8 DAC is powered up.

5 CTS Input Handshake In, enable/disable the transmission of

characters

7 SGND ---- Signal Ground

20 DTR Output Handshake Out, enable/disable the receiving of

characters