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

DK40 Installation
.
Table 2-10 TBSU LED Indications
LED
Circuit Busy
BSY ON – Any B-channel is in use.
OFF – B-channels are idle.
Timing Source
Flashing ON/OFF – This circuit is providing the system timing source.
TS
ON – This circuit is the secondary (backup) synchronization circuit for the ISDN
OFF – This circuit is not used for system timing.
Loss of Signal
LOS ON – A signal cannot be detected from the line.
OFF – Normal condition.
Frame Alignment Alarm
FS ON – Frame alignment cannot be established.
OFF – Frame alignment is established.

Modular Jack Pin Configurations

BRI Circuit Jack (TE or NT Mode)
The TBSU BRI circuit jack is a shielded RJ-45 (8-pin modular) with Transmit (Tx) and
Receive (Rx) pin numbers as shown in
the BRI circuit is configured with TBSU option switches for TE or NT
Table 2-11 RJ-45 Pins in the 8-pin Modular Jack
Pin No. TE Mode
1 N/C
2 N/C
3 Tx
4 Rx
5 Rx
6 Tx
7 N/C
8 N/C
2-40
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
NT Mode
N/C
N/C
Rx
Tx
Tx
Rx
N/C
N/C
TBSU Two-circuit ISDN BRI Interface Unit
Indication
Table 2-11. The Tx and Rx pin numbers change when
87654321
Front View of RJ-45 Jack Cavity
Note: The RJ-45 pins are numbered
as shown above.
Strata DK40 I&M Manual Spring 1999
(Table 2-9).
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