Instruction manual

System Features
Relay Service
86 Strata DK General Description 6/00
Relay Service
The DK14 KSU and DK40i Base KSU provide one relay contact to provide the functions listed
below. For the DK40i, DK424i, 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.
External Page/Door Lock Control
♦ External Page is a Page over external speakers will mute BGM that is being broadcast over
the same speakers.
♦ Door Lock Control Relay requires PIOU or PIOUS relays. Only the PIOU and PIOUS relays
will open a customer-supplied door lock for three or six seconds when a designated button is
pressed on selected telephones.
Night Relay/Hold Relay
♦ Night Relay enables answering machine or a night bell (or chime) will be activated when a
call rings in during the Night mode.
♦ Hold Relay enables an MOH source will turn on only when calls are placed on-hold.
Remote Administration/Maintenance
See “System Program Administration Software (DKi Admin)” on Page 89.
Reserve Power
Customer-supplied 12-volt batteries (gel-cell and maintenance free) can be connected to the
system power supply as a power failure backup.
If there is a power failure, Strata DK automatically switches over to battery power without any
interruption to operation. A built-in charger circuit keeps the batteries charged during normal
system operation.
Reserve power duration depends on the condition of the batteries and the system load, and is
specific for each Strata DK model. Reserve power batteries must be fully-charged, connected, and
tested before a power failure occurs.
♦ DK14 – see “Power Considerations” on Page 4
♦ DK40i – see “Power Considerations” on Page 15
♦ DK424i – see “Power Considerations” on Page 30
Simplified Message Desk Interface (SMDI)
This feature provides system integration between the Strata DK and the Toshiba Stratagy and VP
voice processing systems.
SMDI is a standard (RS-232 serial) link; its protocol was developed by Bellcore and is used by
many PBX and Central Office telephone systems to integrate with voice mail systems. SMDI does
not support Strata DK DNIS mail box routing. SMDI interface requires that the Strata DK have a
WSIU, TSIU, PIOU, PIOUS, RSSU, or RSIU PCB installed.