Toshiba Strara CTX Series, Installation And Maintenance Manual, Page: 227 / 290

Station Apparatus
7-29
Strata CTX I&M September 2002
Standard Telephones
This section explains how to connect standard telephones to the Strata CTX670 system. Toshiba does
not provide standard telephones. Whenever standard telephones are mentioned in this manual, it refers
to 500- and 2500-type standard telephones.
Note Before proceeding, see warning and caution notes in “Telephone Installation” on Page 7-3 .
Standard telephones connect to circuits on the Standard Telephone Interface PCBs: RSTU, RSTU2,
RDSU/RSTS and PSTU via the MDF with standard twisted-pair jacketed telephone cable. (See single-
pair wiring in
Chapter 6 – MDF PCB Wiring for more details.)
The standard telephone cable’s overall loop resistance, connected on- or off-premises, is 300 ohms
max. for PSTU; 600 ohms for RSTU and RDSU/RSTS with -24VDC (
no R48S), and 1200 ohms for
RSTU and RDSU/RSTS with -48VDC (R48S installed on RSTU, RSTU2, or RDSU PCB), including
telephone resistance. This applies to all devices connected to standard telephone circuits.
A standard telephone connected off-premises via the telephone network should interface with OL13A,
OL13B, or OL13C lines (or equivalent) and connect to an RJ21X, FIC jack or equivalent.
Cordless Digital Telephones
Note Not available in the UK & Europe.
Toshiba offers two cordless digital telephone models, the
DKT2104-CT and the DKT2004-CT. The compact designs of
these cordless digital telephones bring mobility and productivity
to office telephones.
Both the DKT2104-CT and DKT2004-CT feature digital 900
MHz technology and represent state-of-the-art design and
engineering.
The DKT2104-CT and DKT2004-CT telephones can be
attached to a Toshiba DKT3000/3500- or 2000/2500-series
corded digital telephone or used as a stand-alone. The cordless
telephones can operate from the same digital station port on the
BDKU or PDKU2 as the digital telephone, which may or may
not be attached. They cannot receive Group Pages or All Call
Pages.
DKT2004-CT
The DKT2004-CT can be attached to a Toshiba DKT3000/3500- or 2000/2500-series corded digital
telephone or is used as a stand-alone. It provides many sophisticated Strata features, including:
◆
900 MHz Digital Spread Spectrum technology
◆
LCD provides information such as User Name, DNIS and Caller ID
◆
Four programmable buttons for feature, multiple line or feature access
◆
Headset jack (headset optional)
◆
Handset volume adjustment
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