Owner`s manual

M SERIES DAC

CABLING

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Refer to the following modular adapter drawing (Figure 35) to interface modems to

the V74 or V75 module.

Refer to the modular adapter drawing (Figure 36) below to connect an EIA-232 serial

printer to the V74 or V75 module.

IMPORTANT: When BayTech modular adapters are used as given in

Figures 31-36, a crossed 8-wire modular cable is required. Do not use 4-

wire modular cabling.

14.1.5 V75 EIA-422 CABLING

The cable required to connect an EIA-422 device to the V75 module using EIA-422

serial interface must have TX+ wired to RX+ (and vice versa), TX- wired to RX- (and

vice versa), HSO wired to HSI (and vice versa), and the grounds connected. Please

see Figure 37.

V75 (EIA-422) Equipment

RJ-45 Connections

1 HSO HSI

2 GND GND

3 TX+ RX+

4 TX- RX-

5 RX- TX-

6 RX+ TX+

7 GND GND

8 HSI HSO

Figure 37: V75 EIA-422 Connection

Insert the 25 pin

md4 adapter

Insert the 25 pin pr2 adapter

Insert the crossed cable drawing