Adku Hardware Options; Adku Installation; Astu Installation - Toshiba Strara CTX Series Installation And Maintenance Manual

ADKU – Digital Telephone Interface Unit
Circuits per PCB:
Interfaces with:
Older Version(s):

ADKU Hardware Options

The ADKU digital telephone interface unit only works with the CTX100. Refer to
Apparatus for instructions on how to connect digital telephones, DDCBs, and DDSS consoles to the
ADKU, as well as how to upgrade digital telephones with these options: a PC Interface Unit (BPCI), a
Speaker Off-hook Call Announce upgrade (BVSU), and a Headset/External Speaker (BHEU).

ADKU Installation

Insert the ADKU (component side facing right) into the appropriate slot, and apply firm, even
pressure to ensure proper mating of connectors.
ASTU – Standard Telephone Interface Unit
Circuits per PCB:
Interfaces with:
Older Version(s):

ASTU Installation

Cabinet Slot
CTX100 has flexible 8 slots (Base:S101-S104 and Expansion:S105-S108). ASTU is configured with
reserved (fixed) slot of S109.
Table 4-1 ASTU PCB
Standard Telephone Interface Unit (ASTU1)
Provides two standard telephone circuits.
Table 4-2 ASTU Electrical Characteristics
ASTU
Ring Voltage
Ringing Capacity
Strata CTX I&M September 2002
eight digital telephone circuits
all Toshiba digital telephones (DDCB, DSS, ADM, BPCI)
none
two single line telephone circuits
Standard two-wire devices
none
Interface with:
Standard telephones (No message
waiting)
Other single-line devices
Alternate BGM source
Fax machine
Voice mail devices
Square wave 190 250V peak-to-peak
(no-load)
2 REN maximum per circuit
PCB Installation
Chapter 7 – Station
4-3