Rbuu/Rbus And Tbuu Interface Unit; Rbuu And Tbuu Installation - Toshiba STRATA DK14 Installation And Maintenance Manual

ISDN Interfaces

RBUU/RBUS and TBUU Interface Unit

RBUU/RBUS and TBUU Interface Unit
System:
Circuits per PCB:
Interfaces with:
Older Version(s):
The DK40i, DK424 and DK424i Release 4.3 system supports the RBUU/RBUS interface unit
(Figures 16-23
14-8). The DK40i R2 supports TBUU in the Base Cabinet.
LEDs on the RBUU/RBUS show a continuous status of operation. Refer to
of each LED's status.
Figure 16-25

RBUU and TBUU Installation

Important!
Before installing an RBUU or TBUU PCB into a DK system, a number of system programs must
be run. Be sure to run Program *60 to identify all station (LT) and CO (NT) BRI circuits. Program
*60 causes port and line numbers to shift. We recommend running these programs in the order
listed before installation. This allows the RBUU to function immediately upon insertion beginning
with a self-check loop-back test and then normal operation. Before you can begin installation of
the RBUU, you may have to install the subassemblies.
The TBUU PCB is shown in
➤ To install the subassemblies (RBUS)
➤
Place the RBUS card (component side facing down) onto the RBUU connectors. Apply firm,
even pressure to ensure proper seating of the connectors. The RBUS card should have been
installed at the factory.
➤ To install an RBUU PCB
1. Insert the RBUU (component side facing right) into the appropriate expansion unit slot and
apply firm, even pressure to ensure proper seating of connectors.
2. After installing the RBUU, gently pull the PCB outward. If the connectors are properly seated,
a slight resistance is felt.
➤ To install a TBUU PCB
1. Insert the TBUU (component side facing right) into the DK40i Base Unit and apply firm, even
pressure to ensure proper seating of connectors.
2. After installing the RBUU, gently pull the PCB outward. If the connectors are properly seated,
a slight resistance is felt.
16-30
DK424i, DK424, and DK40i Release 4.3
2 circuits (2B + D each circuit)
ISDN BRI U when connected to the Public Network or a BRI U-type TE-1 or TA devices
when connecting to ISDN station equipment
none
and 16-24) according to the common control units resident in the system. (Table
shows the location of the LEDs and connectors.
The DK40i, Release 1 does not support the RBUU or TBUU interface.
Figure 16-26.
Table 16-15 for a list
Strata DK I&M 6/00