Instruction manual

Stations and Peripherals
Door Phone (MDFB)
Strata DK General Description 6/00 63
Door Phone (MDFB)
MDFBs are often used with a door lock to screen
building visitors. Door phones also can operate as a
“hot line.” For example, a door phone can be used
for calls between an office and a warehouse
(requires DDCB).
♦ DK14 can have up to six door phones
♦ DK40i can have up to nine door phones
♦ DK424i can have up to 12 door phones (see
Table 40 on Page 109 for MDFB capacities for various common control units)
Door Phone and Lock Control Unit
(DDCB)
The DDCB can support as many as three door phones
(MDFBs) or two door phones (MDFBs) and one door lock
and connects to designated telephone circuits.
External Speaker (HESB)
The HESB is a multi-functional, external, six-inch speaker
unit with a built-in three-watt amplifier. It can be used as a
paging speaker, an amplified talkback speaker, or a
telephone’s Loud Ringing Bell.
Toshiba Stratagy and Stratagy DK Voice Processing
The Strata DK can operate with Toshiba Stratagy and Stratagy DK voice processing systems,
which provide a number of helpful features.
The DK14, DK40i and DK424i also support SMDI voice mail integration (see “Simplified
Message Desk Interface (SMDI)” on Page 86). Refer to the appropriate Stratagy literature for
details. For Stratagy voice mail processors, a standard telephone PCB is also required (QSTU2,
KSTU2, RDSU, RSTU2).
The Strata DK supports in-band DTMF voice mail integration for all of the above voice mail
systems and requires DTMF receivers:
♦ DK14 requires the QRCU3 for DTMF voice mail integration.
♦ DK40i requires the DK40i Expansion KSU for Stratagy DK voice mail. The K5RCU3 is
required for DTMF voice mail integration. The Stratagy DK does not require a KSTU2, RDSU
or RSTU2; it acts as an RSTU2 in the Strata DK KSU slot.
♦ DK424i requires the BRCS for DTMF voice mail integration.