Ascotel® IntelliGate® 2025/2045/2065 as of I7.9
Installation
101
sy
d-
020
4/1.
7
– I7.
9
– 1
2
.2009
Cable requirements
The connection to NT1 (Network Termination) is implemented using commercially
available screened cables with 8-pin RJ45 connectors at both ends, e.g. S-FTP 4P,
PVC, Cat. 5e.
Tab. 42
Cable requirements for the primary rate access (NT1 to PBX)
Primary rate access T2, network side
Fig. 51
Primary rate access T2 on NT1
Core pairs x cores
Stranded
Wire diameter, core
Screening
2 x 2 (for short distances also 1 x 4)
yes
0.4...0.6 mm
yes (Cat. 5)
Characteristic impedance
Wave attenuation
Near / crosstalk attenuation
< 125
Ω
(100 kHz), < 115
Ω
(1 MHz)
< 6 dB/km (100 kHz), < 26 dB/km (1 MHz)
> 54 dB/100 m (1 kHz to 1 MHz)
RXA
RXB
TXA
TXB
PBX
Exchange
230 VAC
NT1
U2
T2
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