Owner`s manual

M SERIES DAC

CABLING

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Refer to Figure 29 on previous page and locate the eight jumper locations for serial

interface selection. These jumper locations are marked on the mechanical layout as

JP13 and JP14 for Port 1, JP15 and JP16 for port 2, JP17 and JP18 for Port 3 and

JP19 and JP20 for Port 4.

Each port is configurable for EIA-422 or EIA-232 serial interface by installing two, 4

position jumpers to either the 422 or 232 position as marked on the board. The center

row of pins for each port will be occupied by four of the jumper positions and the row

of pins for either 422 or 232 will be occupied by the other four positions of these two

jumpers.

IMPORTANT: If the V75 module is installed in the base unit chassis,

remove power from the unit by positioning the On/Off switch to "O" (off)

and unplug the power cord from the AC outlet. Remove the module by

unscrewing the two screws securing it to the back panel and pull the module

out.

14.1.4 V74 AND V75 CABLE/ADAPTER INFORMATION

Refer to the following modular adapter drawings to interface your computers or

terminals to the V74 and the V75 module using EIA-232 serial interface. Use the

"...PC-1" adapters in most data acquisition and control applications where the V74 or

V75 will not have modem connections. Refer to Figure 31 if your

computers/terminals have DB-25 male connectors or to Figure 32 if your

computers/terminals have DE-9 connectors.

Refer to the following modular adapter drawings to interface your computers or

terminals to the V74 or V75 module using EIA-232 serial interface. Use the "...PC-

3" adapters in applications where a port of the V75 will look like a modem connection

when a computer or terminal is connected to the port. Some terminals and popular

communications software packages require that DCD is "high" for a connection to be

completed. Refer to Figure 33 if your computers/terminals have DB-25 male

connectors or to Figure 34 if your computers/terminals have DE-9 connectors.

Insert drawings for the 25 pin and 9 pin pc1 adapter

Insert drawings of the 25 and 9 pin PC3 adapters