Strata CTX Configuration

Universal Slot PCBs

Universal Slot PCBs

Universal Printed Circuit Boards (PCBs) installed in the Strata CTX100 or CTX670 cabinets provide interfaces for stations, lines, and peripherals. Each PCB measures 7.5 x 5.5 inches (190 x 140 mm) and mounts in the slot with a 44-pin backplane connector. PCB external connections to station equipment are made to the Main Distribution Frame (MDF) using industry-standard connectors.

Station, Line and Option PCBs

The PCBs are categorized as station, CO line or option PCBs (see Tables 2-8~2-10). Feature subassemblies that plug onto a universal slot PCB, such as the Standard Telephone Interface Subassembly (RSTS), are listed below the associated PCB.

Table 2-8

Station PCBs

 

 

 

 

Digital Telephone Interface Unit (ADKU) (CTX100 only)

 

Provides eight circuits for 3000 and/or 2000-series

 

Interface Options: Provides the same interface options as

 

the BDKU (see below), but does not support BDKS.

digital telephones.

 

 

Compatible only with CTX100.

 

 

 

 

 

Standard Telephone Interface Unit (ASTU) (CTX100 only)

 

 

 

Interface Options:

 

 

 

Standard telephones (no message waiting)

Provides two standard telephone circuits. Maximum

 

Other single-line devices

number of ringers per circuit is three

 

Alternate BGM source

 

 

 

Fax machines

 

 

 

Voice mail devices

 

 

 

Digital Telephone Interface Unit (BDKU)

 

 

 

 

Interface Options: Digital telephones (with or without

 

 

 

BHEU, BPCI, BVSU, DADMs, or digital cordless

 

 

 

telephone). Supports BDKS.

Provides eight circuits for 3000 and/or 2000-series

 

Stand-alone digital cordless telephone

digital telephones (BDKU) + eight more with BDKS

 

 

DDSS console

(optional).

 

 

 

 

BATI

 

 

 

 

 

 

DDCB

 

 

 

Supports large LCD (DKT3014) features.

 

 

 

Digital Telephone Interface Subassembly (BDKS)

 

 

Provides eight additional circuits for 3000 and/or 2000-

 

Interface Options: Same as BDKU. Not compatible with

series digital telephones. Attaches to BDKU. One per

 

 

ADKU or PDKU.

BDKU. Do not use BDKS for Speaker OCA telephones,

 

 

 

except in slot 103 of the CTX100.

 

 

 

 

 

Digital Telephone Interface Unit (PDKU2)

 

 

 

 

Interface Options: Digital telephones (with or without

Provides 8 digital telephone circuits. (2000-series

 

BHEU or HHEU, DVSU, DADMs, or digital cordless

 

telephone)

phones only. Do not use the PDKU for 3000-series

 

 

Stand-alone digital cordless telephone

digital telephones. With 3000-series DKTs, the LCD

 

display is only 16 characters wide and the Spdial button

 

DDSS console

will not work.

 

DDCB

 

 

 

Does not support DKT3014-SDL features.

 

 

 

 

2-14

Strata CTX I&M 06/04

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Toshiba CTX28 manual Universal Slot PCBs, Station, Line and Option PCBs, Station PCBs