Instruction manual

Strata CTX General Description 10/04 31
Universal Slot Circuit Cards 5
Universal Printed Circuit Cards installed in the Strata CTX100 or CTX670 cabinets provide
interfaces for stations, lines, and peripherals. Each circuit card measures 7.5 x 5.5 inches (190 x
140 mm) and mounts in the slot with a 44-pin backplane connector. Circuit Card external
connections to station equipment are made to the Main Distribution Frame (MDF) using industry-
standard connectors.
Important! This chapter does not apply to the Strata CTX28.
Station, Line and Option Circuit Cards
The Circuit Cards are categorized as station, CO line or option cards (see Tables 19~21). Feature
subassemblies that plug onto a universal slot circuit card are listed below the associated card. For
details, see the Strata CTX I&M Manual.
Table 19 Station circuit cards
Digital Telephone Interface Unit (ADKU) (CTX100 only)
Provides eight circuits for 3000 and/or 2000-series digital
telephones.
Interface Options: Provides the same interface options as
the BDKU (see below), but does not support BDKS.
Compatible only with CTX100.
Standard Telephone Interface Unit (ASTU) (CTX100 only)
Provides 2 standard telephone circuits. Maximum number
of ringers per circuit is three
Interface Options:
Standard telephones (no message waiting)
Other single-line devices
Alternate BGM source
Fax machines
Voice mail devices
Digital Telephone Interface Unit (BDKU)
Provides eight circuits for 3000 and/or 2000-series digital
telephones (BDKU) + eight more with BDKS (optional).
Interface Options: Digital telephones (with or without BHEU,
BPCI, BVSU, DADMs, or digital cordless telephone).
Supports BDKS.
Stand-alone digital cordless telephone
DDSS console
BATI
DDCB
Supports large LCD (DKT3014) features.
Digital Telephone Interface Subassembly (BDKS)
Provides eight additional circuits for 3000 and/or 2000-
series digital telephones. Attaches to BDKU. 1 per BDKU.
Do not use BDKS for Speaker OCA telephones, except in
slot 103 of the CTX100.
Interface Options: Same as BDKU. Not compatible with
ADKU or PDKU.