Installation
129
Mitel SMB Controller
syd-0657/2.0 – R6.0 – 09.2018
4. 7. 3. 2
BRI-S terminal interfaces
With the appropriate interface cards and wiring adapters, BRI-S terminal interfaces can
be made available at RJ45 sockets 1.x...4.x. The possible RJ45 sockets are high-
lighted in colour in the figure below.
Fig. 44
Connection possibilities for BRI-S terminal interfaces
Note
Some of the interfaces can be configured on BRI-T using the wiring adapters (see "Fitting a wir-
ing adapter", page 102).
Connection
Tab. 53
Connection of BRI-S terminal interfaces
S bus configuration
The S bus is a four-wire, serial ISDN bus based on the DSS1 protocol (ETSI standard).
It starts in each case at an BRI-S interface of the communication server. Four bus con-
figurations are possible, depending on the line length and the number of terminals:
Communication server
Cable cores
Connection socket
Socket
Pin
BRI-S sig-
nal
BRI-S 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
(WK
(WK
(WK
);6
);6
);6
);6
);6
);6
(WK
