User's Manual

Unit 2 – IF Modulator
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4.2. Back Panel:
Each element in the panel has the
following function:
1. AUTOM, C AND BATTERY (OPC):
- AUTOM: output to external command.
When the video is on, this output is short
circuit to the ground (50mA maximum current).
- C: EXTERNAL CONTROL: Lower output
IF level by ground contact.
- BATTERY (OPC): Battery input +36V
(optional).
2. VIDEO IN: Video input 75 Ohms
impedance (unbalanced) and 1 Vpp level.
3. IF OUT: IF output with 50 Ohms
impedance (unbalanced) and adjustable level.
0dBm Nominal.
4. STEREO AUDIO: Stereo audio input,
75 Ohms impedance (unbalanced), 0dBm level.
5. MONO AUDIO IN: Mono audio input,
600 Ohms impedance (balanced) and 0
dBm/400 Hz level.
6. AUDIO CARRIER: Turn on/off the
audio carrier.
7. MAIN AC: Power supply input 220V.