Isdn Pri (E1/T1); Pstn Nt Cabling; Crossover Cable Pinout; Port 0/0 - Patton SmartNode SN4170 User Manual

SmartNode 4170 User Manual

ISDN PRI (E1/T1)

The E1/T1 PRI port 0/0 uses the (LE) pinout. In most cases, a straight-through RJ-45 to RJ-45 can be used to
connect the device to a PSTN NT. However, pinouts may vary depending on the pinout being used by the NT.
If PRI port 0/0 will be connected to a PBX, usually a PRI cross-over cable is required.
See the cabling details in
The pin-out of a cross-over cable in illustrated in
CAUTION
CAUTION
PSTN
NT
R e
s e
t
1 2
V ,
1 A
C o
n s
o le
U S
B
E T
H 0
/ 0
P R
I 0
/ 0
ISDN PRI (E1/T1)
figure 15.
Hazardous network voltages are present in the PRI cables. If
you detach the cable, detach the end away from the Smart-
Node or interface card first to avoid possible electric shock. Net-
work hazardous voltages may be present on the device in the
area of the PRI port, regardless of when power is turned OFF.
To prevent damage to the system, make certain you connect
the PRI cable to the PRI port only and not to any other RJ-45
socket.
R e
s e
t
1 2
V ,
1 A
C o
n s
o le
U S
B
E T
H 0
/ 0
P R
I 0
/ 0
Figure 15. PSTN NT Cabling
PRI PBX
Figure 16. Crossover cable pinout
figure 16
PSTN NT
TX Tip
1
TX Ring
2
N/C
3
RX Tip
4
RX Ring
5
N/C
6
N/C
7
8
*N/C = No connection*
PBX
RX Tip
1
RX Ring
2
N/C
3
TX Tip
4
TX Ring
5
N/C
6
N/C
7
N/C
8
*N/C = No connection*
C • Cabling
SmartNode

Port 0/0

RX Tip
1
RX Ring
2
N/C
3
TX Tip
4
TX Ring
5
N/C
6
N/C
7
N/C
8
SmartNode
Port 0/0
RX Tip
1
RX Ring
2
N/C
3
TX Tip
4
TX Ring
5
N/C
6
N/C
7
N/C
8
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