Rssu - Pc Interface Unit; Rssu Installation; Rssu Programming - Toshiba STRATA DK14 Installation And Maintenance Manual

RSSU – PC Interface Unit
System:
DK40i Expansion KSU, DK424, DK424i
Circuits per PCB:
one RS-232 connection
Interfaces with:
TTY jack
Older Version(s):
none
The RSSU contains one RS-232 serial port for connecting an SMDI, SMIS processor,
DKi Admin/DKi Backup PC or external modem.
One optional RSSU maintenance interface PCB can be used for connecting a maintenance PC or
external modem (local or remote) to the DK40i.
A maximum of three RSSU cards can be supported per DK424 or DK424i.
The RSSU controls, indicators, and interface connectors are shown in
Table 9-18.

RSSU Installation

1. Insert the RSSU (component side facing right) into the last slot ("S16") of the Base KSU/
cabinet if the system only has a Base KSU/cabinet and no Expansion KSUs/cabinets. If there
are Expansion KSUs/cabinets, install the RSSU in the highest slot number in any KSU/
cabinet. Apply firm, even pressure to ensure proper mating of connectors.
In DK40i, RSSU can be installed in any available Expansion KSU.
Note
2. After installing the RSSU, gently pull the PCB outward. If the connectors are properly mated,
a slight resistance is felt.

RSSU Programming

Program 03–Specify Code 41, 42 and 43 for slots that support RSSUs.
Strata DK I&M 6/00
Universal Slot PCBs
RDTU – T1 Interface Unit
Figure 9-27 and described in
9-55