Toshiba CTX28 manual PCB Chapter Layout, PCB Installation

PCB Installation 6

This chapter contains information on Printed Circuit Boards (PCBs) which can be used in the cabinet slots of the Strata CTX systems.

Note Prior to PCB installation, the power supply must be tested and the ground checked.

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 instructions follow the synopsis with a table showing the PCB’s controls, indicators and connectors and an illustration of the board.

PCB Installation

RDDU - Direct Inward Dialing Line Interface Unit

PCB Title RDDU - Direct Inward Dialing Line Interface Unit

Systems:	Strata CTX100
Circuits per PCB:	four DID lines
Interfaces with:	DID (one or two-way) lines
Older Versions:	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.

Each extension can be assigned to ring a station [DN] that appears on one or multiple stations, Distributed Hunt or ACD Group, or an external telephone number selected in system programming. This enables calls over the same line to be routed to different stations or groups 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 4-17 and described in Table 4-9.

6040

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.

PCB Installation

Strata CTX I&M 06/04 6-1