Hardware manual

Issue 8 Electra Elite
5 - 128 Installing Electronic Telephone Units
7.2.5 Connectors
The BSU(2)-U( ) ETU has two connectors:
CN1 Connects to the backboard
CN2 For future use
7.2.6 ZT II Connections
Figure 5-65 BSU(2)-U( ) ETU Connections
ZT
RJ-45
MDF
RJ-45
T1
R1
T2
R2
T3
R3
T4
R4
T5
R5
T6
R6
T7
R7
T8
R8
RJ-45
RJ-45
1
2
3
4
5
6
7
8
ZT
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8