Mitel 430 System Manual page 107

Screening
Characteristic impedance
Wave attenuation
Near/crosstalk attenuation
BRI basic rate interface network-side
Exchange
[1] Do not connect power supply NT1
[2] Do not fit the jumper
Fig. 32 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. 40 Wiring of the BRI basic rate interface network-side
NT1
Socket Pin
1
2
3
4
5
6
7
8
Mitel 415/430 as of R4.1
syd-0580/1.2 – R4.1 – 08.2016
recommended
< 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)
Mains power
NT1
U
a
b
[2]
Cable cores
Straight patch cable
BRI-T sig-
nal
–
–
c
f
e
d
–
–
[1]
BRI-T
c
d
e
f
BRI-T sig-
nal
–
–
c
f
e
d
–
–
Installation
Communica-
tion server
BRI-T
c
d
e
f
Communication server
Pin Socket
1
2
3
4
5
6
7
8
107