Ascotel® IntelliGate® 150/300 as of I7.9
92 Installation
syd-0210/1.7 – I7.9 – 12.2009
4. 7. 2. 2 Primary Rate Access T2
With the appropriate interface cards and Wiring Adapters, T2 network interfaces
can be made available at RJ45 sockets 1.1...40.1. For test purposes the T2 interface
is also routed in parallel to port X.2.
Note
In normal operation the x.2 test socket must not be connected; otherwise
faults may occur.
Fig. 40 Connection possibilities for T2 network interfaces
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. 30 Cable requirements for the primary rate access (NT1 to PBX)
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)
LINK /
LAN
AD2
0.7
AD2
0.5
a/b
0.3
LAN
0.8
AD2
0.6
AD2
0.4
a/b
x.1 x.3
x.2
TEST
x.4
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