Belden Grass Valley XCU Universe XF, User Manual

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XCU Universe XF XF Transmission Base Station User’s Guide (v1.4) 57
Chapter 6 - Connectors and signals
Area 2: Reference connectors
*) This output signal is always looped-through even when the XCU is not mounted in its cradle.
☞
Note
☞
Note
The last loop-through output in a chain must be terminated with a 75

resistor. The maximum
number of XCUs that can be looped through is 6.
6.1.9 Signalling connector
Connector Signal
Ref in Reference input signal (HD Tri-Level sync or SD Black Burst are accepted)
Ref out Reference loop-through output signal *)
Pin Description
1 Preview output ext. (relay
contact < 10

)
2 Call output ext. (relay contact
< 10

)
3 ISO input ext. (dry contact)
4 On Air input ext. (dry contact)
5 Call input ext. (dry contact)
6 Audio 1 level (analog input
voltage from 0 to 5 V)
7 5 V (Operating Control Panel)
1
15
Microphone impedance >200

sensitivity range: -70 to -28 dBm

Signal at pin 2 of audio input is in phase with signal at pin 2 of the audio output.

Shield of cable to the pin marked housing.
SubD 15-pin male
connector
Pin Description
8 Housing
9 Preview output ext. return
10 Call output ext. return
11 ISO input ext. return
12 On Air input ext. return
13 Call input ext. return
14 Audio 2 level (analog input
voltage from 0 to 5 V)
15 GND