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2 connecting the studio signalling, Call, on-air and iso signals – Grass Valley HD Wireless User Manual

Page 29

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HD Wireless User’s Guide (v6.2)

29

Chapter 2 - Installation

2.4.2 Connecting the studio signalling

Connect the studio signalling system to the Sign. connector on the rear of the WCU. The
wiring of the panel connector is shown.

Figure 2-11. Signalling connection

Call, On-air and Iso signals

There are four connection methods for the Call, On-air and Iso (On-air yellow) signalling
functions:

1.

Dry contact

2.

Common ground

3.

Voltage level Send lead

4.

Open / voltage level Send lead

A selection in the SYSTEM

>

SIGNALLING

menu allows you to make the state of the function

(on or off) correspond to a particular input signal. There are two leads for each connection -
Send and Return.

The following tables show the selectable states for each of the four connection methods. The
states are Open/High (OH); High/Open (HO); Low/High (LH) or High/Low (HL). Refer to Chapter
5 to see how to set these menu settings.

Table 2-12. Signalling send and return pins

Function

Send pin

Return pin

Call

2

10

Iso

3

11

On-air

4

12

8

15

9

1

Preview out

Preview out ret.

Call in

+5 Vdc

Housing

Call in ret.

ISO in

ISO in ret.

Call out ret.

Call out

On-air in ret.

On-air in

Audio 2 level

Ground

Audio 1 level