Toshiba Strara CTX Series Installation And Maintenance Manual page 164

ISDN Interfaces
will have the locking tab of the plug on one end, "up;" and on the other end, "down," as shown in
Figure 5-13.
A cord of up to 10 meters connects the ISDN BRI RJ45 wall jack to the desktop TE-1 or TA RJ45 jack.
Figure 5-13 Modular ISDN Data Cable
Table 5-6 TIA-568B (RJ45) Jack – ISDN Standard Interface Modular Connector Pinout (RBSU-NT mode)
Pin
1
2
3 White/Blue
4 Blue/White
5 White/Green
6 Green/White
7
8
Notes
Pins are numbered left to right when looking into the jack cavity with the locking tab down.
5-16
3039
Four-pair Wire
Colour Name
T2
R2
R3
R1
T1
T3
T4
R4
Locking Tab
RJ-45
Eight-pole Plug
Function
(not used)
(not used)
RX+
TX+
TX-
RX-
(not used)
(not used)
Strata CTX I&M September 2002