Manual

VP-311DVI - Connecting the VP-311DVI

DO NOT Connect more than one PIN to the Ground PIN at the

same time

Figure 4: Connecting the Contact Closure Remote Control PINS

4.3 Connecting to the VP-311DVI via RS-232

You can connect to the unit via a crossed RS-232 connection, using for example,

a PC. A crossed cable or null-modem is required as shown in method A and B

respectively. If a shielded cable is used, connect the shield to pin 5.

Method A (Figure 5)—Connect the RS-232 9-pin D-sub port on the unit via a

crossed cable (only pin 2 to pin 3, pin 3 to pin 2, and pin 5 to pin 5 need be

connected) to the RS-232 9-pin D-sub port on the PC.

Note: There is no need to connect any other pins.

Figure 5: Crossed Cable RS-232 Connection

Hardware flow control is not required for this unit. In the rare case where a

controller requires hardware flow control, short pin 1 to 7 and 8, and pin 4 to 6 on

the controller side.

Method B (Figure 6)—Connect the RS-232 9-pin D-sub port on the unit via a

straight (flat) cable to the null-modem adapter, and connect the null-modem

To route IN 1 to the

output, temporarily

attach PIN 1 to

PIN G (Ground)

To route IN 2 to the

output, temporarily

attach PIN 2 to

PIN G (Ground)

To route IN 3 to the

output, temporarily

attach PIN 3 to

PIN G (Ground)