Pcb Chapter Layout - Toshiba STRATA DK14 Installation And Maintenance Manual

PCB Chapter Layout

Each PCB outline begins with the PCB's designation and title (the outline appears in the chapter in
alphabetical order by designation). A brief synopsis of the PCB appears next and includes a
notation of the system(s) that the PCB can be used in, the circuits supplied by the PCB, what
equipment the PCB interfaces with, and a list of the PCB's older version(s) with a brief description
of their differences.
Installation and programming instructions follow the synopsis with a table showing the PCB's
controls, indicators and connectors and an illustration of the board.
PCB Title
RDDU - Direct Inward Dialing Line Interface Unit
System:
Circuits per PCB: four DID lines
Interfaces with:
Older Versions:
Strata DK I&M 6/00
DK40i/DK424 Universal Slot PCBs
DK16e Expansion KSU, DK424
DID lines
None
The RDDU provides four Direct Inward dialing (DID) lines, each of which can have a single
office code along with a block of extensions. If an RDDU is installed, an RRCS must be
installed for DTMF operation, but not for dial pulse operation.
Each extension can be assigned to ring a station [DN] that appears on one or multiple stations,
Distributed Hunt or ACD Group (DK424 only), or an external telephone number selected in
system programming. This enables calls over the same line to be routed to different stations or
group of stations. An extension can also be assigned to ring the maintenance modem. Each
RDDU can be set for either wink start or immediate. All RDDU lines support DNIS and ANI
features.
RDDU controls, indicators and interface connectors are shown in Figure 7-10 and described in
Table 7-8.
RDDU Hardware Option
There are no hardware options supported by the RDDU.
PCB Chapter Layout
System:
Gives the type of system that is
compatible with the given PCB. Be
sure to read this information before
attempting to use a PCB with your
system application.
Circuits per PCB:
Type and number of circuits
available on the PCB.
Interfaces with:
Type of line/hardware the PCB can
accept.
Older Version(s):
Describes older version or versions
of the PCB.
Universal Slot PCBs
PCB Chapter Layout
9-3