Isdn pri-u connector pinout (pbx) – Teo E911 Response System Installation User Manual
Page 21
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Installation
13-280133 Rev. C
Page 21
I
I
S
S
D
D
N
N
P
P
R
R
I
I
-
-
U
U
C
C
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
P
P
i
i
n
n
o
o
u
u
t
t
(
(
P
P
B
B
X
X
)
)
The two transmit wires from the PBX must connect to the two receive wires of the 9145,
and the two transmit wires from the 9145 must connect to the two receive wires of the
PBX.
9145 PRI-U
Pin Number
Signal
Destination
(pin numbers may vary)
1
Transmit Tip
PBX Receive Tip
2
Transmit Ring
PBX Receive Ring
3
–
–
4
Receive Tip
PBX Transmit Tip
5
Receive Ring
PBX Transmit Ring
6
–
–
7
–
–
8
–
–
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