GRASS VALLEY XCU - Setting up Studio Signalling; Dry Contact

XCU eXchangeable Control Unit User’s Guide (v1.6) 21
Chapter 2 - Installation
2.5 Setting up studio signalling
Connect the studio signalling system to the rear of the XCU. The wiring of the signalling
connector is shown below:
There are several connection methods for the ISO (On Air Yellow), On Air and Call signalling
functions: dry contact, common ground, voltage level and open circuit/voltage level.
A selection in the INSTALL > SIGNALLING INPUT menu allows you to make the activity state
of the function (Active or Inactive) correspond to a particular input signal. There are two leads
for each connection - Send and Return.
2.5.1 Dry contact
☞
Note
☞
Note
A common return (not ground!) can be used for all three functions (ISO, On Air and Call)
If a contact is closed, the corresponding function is Active or Inactive, depending on the
selection in the INSTALL > SIGNALLING INPUT menu:
1
8
9
15
Call out send
Prev.out send
Prev.out ret.
ISO in send
ISO in return
Call in send
Call in return
5 V
Housing
Call out return
On Air send
On Air return
Audio 1 level
Audio 2 level
GND
Signal Send pin Return pin
ISO 3 11
On Air 4 12
Call 2 10
ISO 1a
ISO 1b
On-Air (Tally) 1a
On-Air (Tally) 1b
Call 1a
Call 1b
ISO in ext. send (pin 3)
ISO in ext. return (pin 11)
On-Air in ext. (pin 4)
On-Air in ext. return (pin 12)
Call in ext. (pin 5)
Call in ext. return (pin 13)
External ISO signalling
(dry contact)
External On-Air signalling
(dry contact)
External Call signalling
(dry contact)