ISDN Interfaces
RPTU Installation
5-10 Strata CTX I&M 10/02
Figure 5-6 Direct Connect Two RBTU2 PCBs for Qsig Networking
6029
Pin of one end to
of one end to of other end - each direction
To make a QSIG Cross-Pinned Modular Cord on a existing straight through cord:
On one end only, swap Pin 1 with Pin 5 and then Pin 2 with Pin 4.
of other end - each direction
Pin1
5
2
Pin
4
Pin
QSIG RJ45 Cross Pinning
T
R
T
R
T
R
T
R
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
18
Front Front
18
Bottom Side Up
Connector Head
1
2
3
4
5
6
7
8
Connecting two RPTU2 PCBs back-to-back for QSIG Networking
RPTU2
Strata CTX
RPTU2
Strata CTX
QSIG Cross-Pinned, RJ45 Modular Cord
Ferrite Core per Figure 5-5
(655 ft. max. CAT5 wire)
RJ45 JackRJ45 Jack
1
2
5
4
5
4
2
1
Pin Pin
T
R
RR
R
TT
T
Important Note:
Set SW1 on each
RPTU2 per Table
5-1.
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