Ascotel® IntelliGate® 150/300 as of I7.9
88
Installation
sy
d-
021
0/1.
7
– I7.
9 – 1
2.
2009
4. 7. 2
Network Interfaces
Equipping the system with interface cards provides the necessary network inter-
faces. With the exception of the Ethernet interface, which also represents a network
interface via SIP access, there are no network interfaces on the A150/300 main-
board.
4. 7. 2. 1
Basic access T
With the appropriate interface cards and Wiring Adapters, T network interfaces can
be made available at RJ45 sockets 1.1...4.4.
Fig. 35
Connection possibilities for T network interfaces
The connection from the front panel to the NT1 (Network Termination) is via
straight patch cables with 8-pin RJ45 connectors on both sides. With the appropri-
ate tools you can create your own cables.
Cable Requirements
Tab. 25
Cable requirements for basic access T
Core pairs x cores
1 x 4 or 2 x 2
Stranded
yes
Wire diameter, core
0.4…0.6 mm
Screening
recommended
Characteristic impedance
< 125
Ω
(100 kHz), < 115
Ω
(1 MHz)
Wave attenuation
< 6 dB/km (100 kHz), < 26 dB/km (1 MHz)
Near / crosstalk attenuation
> 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
x.4
