Equitel D841, Техническое и монтажное руководство

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EQUITEL - Technical manual D841 / D842 3
September 2010 – Ed.1.0
2.2. D841 description
The following photograph shows the most important parts of this device:
Item Description
1 Video signal inputs (8 total)
2 Optical fibre output
3 “NV” indicators – Absence of video input
4 “ON” indicator – Equipment on
5 Power supply connector (rear part)
The equipment is powered at 12 Vcc through the rear power terminal. The polarity is indicated in the
cover.
The 8 video inputs have an input impedance of 75
Ω
and accept PAL signals, of 1Vpp ± 3dB
1
.
The leds “NV” light when the input signal does not comply with these requirements, or when there is
no signal.
The led “ON” indicates the correct power and internal operation of the equipment.
The output fibre connector is FC/PC for one singlemode fibre 10/125 µ.
1
This means that the equipment is capable of compensating input signal amplitude deviations of 3 dB over the 1 Vpp nominal amplitude in both directions.
5
1
3
4
2
Figure 2: Parts of D841