Installing A Surge Voltage Protector - ASCOM Ascotel 2025 System Manual

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 Fig. 4.7).
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
HBT_20321104_04/B0_en
Sheath Screen Sheath
haz1188aaena0
30-40 mm
[1]
Connecting terminals
for cable ties
ascom Ascotel 2025/2045/2065
Tracer
Wires
haz1106aaena0
Earthing and Protecting the PBX 4.11