T E C H N I C A L D A T A
52
Balancing Unit
The Balancing Unit (BU) is a passive device intended to get over from one physical interface to
other, - between RJ-45 and BNC interfaces; it can be used along with the E1 IDUs with one type
of traffic interface (for example, CFM-8-4E1 IDU), e.g. RJ-45 or BNC (but not both).
The BU changes up to 16 E1 traffic ports from RJ-45 (symmetrical) electrical interface to BNC
(asymmetrical) and vice versa, - converts the impedance from 75
Ω
to 120
Ω
and vice versa. The
ports are independent.
The BU is 2U high rack mountable unit (depth: 0.34 m, weight: 0.83 kg).
CFM-BU16
IN
OUT
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Figure 19. 16-port Balancing Unit
Summary of Contents for CFM-13-LM
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