Modular Jack Pin Configurations - Toshiba Strata DK40 Installation & Maintenance Manual

DK40 Universal Slot PCBs

Modular Jack Pin Configurations

BRI Circuit Jack (TE or NT Mode)
The RBSU/RBSS BRI circuit jack is a shielded RJ-45 (8-pin modular) with Transmit
(Tx) and Receive (Rx) pin numbers as shown in
change when the BRI circuit is configured with RBSU/RBSS option switches for TE or NT
(Table 3-14). If the R40S is installed, the PS-1 voltage is carried on the Tx/Rx wires with
polarity as shown in
Table 3-16 RJ-45 Pins in the 8-pin Modular Jack
Pin TE
No. Side
1 N/C
2 N/C
3 Tx
4 Rx
5 Rx
6 Tx
7 N/C
8 N/C
3-54
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
Table 3-16.
NT PS1/R40S
Side Polarity
N/C N/C
N/C N/C
Rx -
Tx +
Tx +
Rx -
N/C N/C
N/C N/C
RBSU/RBSS ISDN Basic Rate Interface Unit
Table 3-16. The Tx and Rx pin numbers
87654321
Front View of RJ45 Jack Cavity
Note: The RJ45 pins are numbered
as shown above.
Strata DK40 I&M Manual Spring 1999
3048