TechniSat SkyCable QPSK/DVB-T CI TWIN - Handbuch (Seite 50)

50
EN
3 Implementation
The following prerequisites must be followed to prepare the TechniNet BS4 head station for use:
- Appropriate experience in constructing cable head stations and
satellite reception equipment.
- Access to a professional digital measuring device with the following features:
• Level measurement in dBµV.
• C/N measurement in dB for PAL signals.
• Bit error rate (BER) measurement for QAM signals.
• Modulation error rate (MER) measurement for QAM signals.
• Spectrum analysis.
The head station should be mounted in rooms where the permitted ambient temperature (0-
45°C) can safely be maintained.
Please observe the safety instructions in section 2 at all times.
3.1 Wall mounting
Use four screws to attach the base unit to the two pre-mounted angle brackets against a firm,
non-flammable background.
Ensure there is clearance of at least 20cm above the base unit. Never cover the ventilator air
output slits.
3.2 19” rack mounting
To mount on a 19” rack, remove the angle brackets supplied from the back of the base unit and
mount them on the front of the housing. Now mount the base unit onto a 19” rack using
additional fixing brackets in the 19” rack. Ensure there is a clearance of at least 20cm above the
base unit.
3.3 Earthing
Carry out potential equalisation on the head station in accordance with regulations and observe
the relevant provisions of EN 50083-1/EN 60728-11 at all times. Connect the head station PA
connector to the PA equalising bar via a copper wire of at least 4mm² (green/yellow).
3.4 Connecting the power supply
Connect the base unit low heat socket to a properly functioning mains socket (230V~/50Hz)
using the mains cable supplied.
This enables you to switch on the TechniNet BS4 base station via
the mains switch. The device is immediately ready for use.
Only use the original mains cable supplied.
Image: Power supply connection area