Grass Valley LDK 4410 - Manual (Page 18)

18 LDK 4410 + LDK 5420 3G Fiber Transmission System User’s Guide (v1.0)
Chapter 2 - Base station
☞
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 the
SYSTEM > SIGNALLING menu:
Common ground
☞
Note
☞
Note
Ensure that a reliable ground coupling exists between the control device ground and the base
station ground.
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
External On-Air signalling
(common ground contact)
On-Air in ext. (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. (pin 4)
On-Air in ext. return (pin 12)
On-Air in ext. (pin 4)
On-Air in ext. return (pin 12)
On-Air (Tally) 1
On-Air (Tally) 2
On-Air (Tally) n
External On-Air signalling
(common ground contact)
On-Air in ext. (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. (pin 4)
On-Air in ext. return (pin 12)
On-Air in ext. (pin 4)
On-Air in ext. return (pin 12)