Installation
112
Mitel SMB Controller
syd-0657/2.0 – R6.0 – 09.2018
BRI basic rate interface network-side
[1]
Do not connect power supply NT1
[2]
Do not fit the jumper
Fig. 30
Basic access on NT1
The assignment of the RJ45 connector is identical on the NT-side and on the side of
the communication server.
Tab. 38
Wiring of the BRI basic rate interface network-side
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)
NT1
Cable cores
Straight patch cable
Communication server
Socket
Pin
BRI-T sig-
nal
BRI-T sig-
nal
Pin
Socket
1
–
–
1
2
–
–
2
3
c
c
3
4
f
f
4
5
e
e
5
6
d
d
6
7
–
–
7
8
–
–
8
NT1
BRI-T
BRI-T
[1]
U
a
b
c
d
e
f
c
d
e
f
[2]
Exchange
Communica-
tion server
Mains power