GRASS VALLEY XCU UXF Fiber Series - Dry Contact with Multiple Xcus

20 XCU UXF Fiber Series XF Transmission Fiber Base Station User’s Guide (v1.3)
Chapter 2 - Installation
2.5.2 Dry contact with multiple XCUs
This is an example of an On Air signalling with multiple XCUs using a common contact.
☞
Note
☞
Note
Use either Send or Return only, but do not mix.
If a contact is closed, the corresponding function is Active or Inactive, depending on the
selection in the INSTALL > SIGNALLING INPUT menu:
Menu setting Input is shorted: Input is open:
LH (low-high) Function is Active Function is Inactive
HL (high-low) Function is Inactive Function is Active
On-Air (Tally) 1
On-Air (Tally) 2
On-Air (Tally) n
Common
External On-Air signalling
(common contact)
On-Air in ext. send (pin 4) Signalling connector
On-Air in ext. return (pin 12) Base Station 1
Signalling connector
Base Station 2
Signalling connector
Base Station n
On-Air in ext. send (pin 4)
On-Air in ext. return (pin 12)
On-Air in ext. send (pin 4)
On-Air in ext. return (pin 12)
Menu setting Input is shorted: Input is open:
LH (low-high) Function is Active Function is Inactive
HL (high-low) Function is Inactive Function is Active