CBUPRI/E1 SBUPRI-23/30 User Manual
80-14005000-01
2–2
ISDN PRI
R ear
F ront
Ch. in Use
B 1
B 2
B 3
B 4
B 5
B 6
B 7
B 8
B 9
B 10
B 11
B 12
B 13
B 14
B 15
B 16
B 17
B 18
B 19
B 20
B 21
B 22
B 23
B 24
B 25
B 26
B 27
B 28
B 29
B 30
M aster
A le rt
SBU
ISDN
Layer 2
RA I/Yellow
A IS /B lue
Red
E .1
&
T.1
E .1
O
n
l
y
PRI
Figure 1 SBUPRI front and rear panels