ascom
Ascotel 2025/2045/2065
HBT_20321104_04/B0_en
Earthing and Protecting the PBX
4.11
Fig. 4.9:
Cable screening
[1] Exposed cable screening in the area of the connecting surface
Fig. 4.10:
Connecting terminals for cable ties on the PBX (basic system 2025 / 2045)
The position and appearance of the connecting terminals for cable ties on the
2065 basic system are in accordance.
3.3
Installing a Surge Voltage Protector
Protect each line installation leading from the building at the PBX location by
using one surge voltage protector per core at the isolating point (see
).
Connect the second connection of each voltage protector is earthed to the build-
ing.
Such surge voltage protectors can be installed either at the entry point of the line
in the building or at the main distributor board.
Surge voltage protector characteristics:
• Response voltage, static: 245 VDC
• Igniting voltage at 1 kV/µs: < 800 V
• Discharge current (impulse 8/20 µs): 10 kA
Sheath
Sheath
Screen
30-40 mm
Tracer
Wires
haz1188aaena0
Connecting terminals
for cable ties
haz1106aaena0
[1]
Содержание Ascotel 2025
Страница 1: ...Ascotel ISDN telecommunications system from ascom Ascotel 2025 2045 2065 System Manual...
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