Kramer Electronics VS-44HC User Manual

Page 18

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Controlling the VS-44HC

7.2 Controlling via RS-485

You can control up to 15

VS-44HC units via an RS-485 controller, for

example, a PC (equipped with an RS-485 interface) or a Master

Programmable Remote Control system such as the Kramer

RC-3000

To connect an

RC-3000 to a VS-44HC unit (see Figure 7), connect the

RS-485 terminal block port on the

RC-3000 to the RS-485 port on the

VS-44HC unit, as follows:

1. Connect the “A” (+) PIN on the RS-485 rear panel port of the

RC-3000 to the

“A” (+) PIN on the RS-485 rear panel port of the

VS-44HC unit

2. Connect the “B” (-) PIN on the RS-485 rear panel port of the

RC-3000 to the

“B” (-) PIN on the RS-485 rear panel port of the

VS-44HC unit

3. If shielded twisted pair cable is used, the shield may be connected to the “G”

(Ground) PIN on one of the units (for example, on the

RC-3000)

To cascade up to 15 individual

VS-44HC units, via RS-485, as illustrated in

Figure 7, do the following:

1. Connect the component video sources and acceptors, as well as the

appropriate digital audio sources and acceptors, as section 6.1 describes.

2. Connect the RS-485 terminal block port on the first

VS-44HC unit to the

RS-485 port on the second

VS-44HC unit and so on, connecting all the

RS-485 ports.

7.2.1

Set the Dipswitches

Set the dipswitches, as section 6.3 describes:

Assign a unique machine #

(from 1 to 15) for each

VS-44HC unit,

according to Table 5

Set DIP 8 ON on the

VS-44HC unit located at the end of the line

(terminating the RS-485 line at 120 ).

Set DIP 8 OFF on the other

VS-44HC units

Set DIP 5 OFF on all

VS-44HC units

Set DIP 6 and DIP 7 according to the IN 2 digital audio input signal

(Table 6)

1 Previously known as the VS-3000
2 In any order