Outgoing Call Restriction; Pooled Co Line Button; Power Failure Transfer; Privacy/Non-Privacy Calling - Toshiba Strata DK14 General Description Manual

Outgoing Call Restriction

Stations can be selectively restricted from originating calls over any number of lines. The same
stations can receive incoming calls on those restricted lines.

Pooled CO Line Button

Several lines can be pooled to appear under one digital telephone, electronic telephone CO
button. The lines are usually pooled in categories, e.g., WATS lines in one pool, regular lines in
another, etc. Pooled and single-appearing line buttons are designed for use with loop and ground
start lines, not DID, Tie, DNIS, or ANI lines.

Power Failure Transfer

CO line(s) can be switched directly to dedicated standard telephones (customer-provided 2500- or
500-type) for incoming and outgoing calls in the case of a system power failure. The number of PF
telephones available depends on system configuration. Refer to the appropriate configuration
chapter in the Strata DK Installation & Maintenance Manual.
During normal operation with AC power, in the DK14 or DK40i Base KSU, the PF telephone
connected to the base KSU PF jack does not function.
In the DK424 and the DK40i Expansion Unit, PF telephones connected to DPFT/RSTU2 do
function as a normal standard telephone with all the Strata DK available features, when operating
with normal AC power.
During a power failure, the following connections are made:
DK14 – one CO line is connected directly to the PF phone.
DK40i – in the Base KSU, one CO line is connected directly to the PF phone (up to eight more
can be added in the Expansion Unit).
DK424 – in the DK424, multiple CO lines can be switched. If AC power is lost, the PF
telephones are automatically/directly connected to a pre-wired CO lines.
PF transfer requires an external unit called the Power Failure Transfer Unit (DPFT) and the
RSTU2 PCB on the DK424 and in the DK40i Expansion KSU (if more than one PF telephone is
needed). Each DPFT provides interface for eight power failure telephones.
An RSTU2 PCB is required to supply the DPFT with a -24VDC control signal and ground
connections.

Privacy/Non-privacy Calling

This feature applies to CO
buttons can be Private or Non-private on a station-by-station basis. Private lines prohibit users
from pressing a common CO
can do so on Non-private lines.
Private line users can change the mode with a
three stations (total) on a line. Non-private users can block access to their lines with a
button.

Relay Service

The DK14 KSU and DK40i Base KSU provide one relay contact to provide the functions listed
below. For the DK40i and DK424, the PIOU, PIOUS, and PEPU PCBs each have two pairs of
relay contacts that can each be programmed for one of the following two functions.
Strata DK General Description
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buttons only and does not apply to [DNs]. Outside CO
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button and accessing a line that is already in use, whereas users
5/99
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button, enabling as many as
Features
System Features
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