Door Phone (Mdfb); Lock Control Unit And Door Phone; Ddcb/Hdcb And Mdfb Cabling - Toshiba Strata DK14 Installation And Maintenance Manual

Station Apparatus

Door Phone (MDFB)

Door Phone (MDFB)
This section provides installation instructions for the Door
Phone (MDFB). Door Phones can be installed can also with
Door Phone/Lock Control Units (see following section).
DK14 can have up to 6 door phones
DK40i can have up to nine door phones
DK424 can have up to 12 door phones

Lock Control Unit and Door Phone

This section provides installation instructions for the Digital
(DDCB) or Electronic (HDCB) Door Phone/Lock Control
Units. Each DDCB or HDCB can support as many as three
MDFBs or two MDFBs and one door lock.
DDCBs or HDCBs can only connect to slot 11/port 004, slot 12/
port 012, slot 13/port 020 and slot 14/port 028. DDCBs can only
connect to circuit 5 (a PDKU or RDSU PCB and HDCBs can
connect only to circuit 5 of a PEKU or PESU PCB).
DDCBs and HDCBs cannot connect to the RSTU2, PSTU, or
KCDU.

DDCB/HDCB and MDFB Cabling

For DDCB, HDCB, and MDFB wiring/interconnecting details and door lock control installation
procedures, refer to Chapter 8 – DK40i/DK424 Universal PCB Wiring. If using 24 AWG cable,
the length of the cable run from the Strata DK to the MDFB (via the DDCB or HDCB) must not
exceed 1,000 feet (305 meters).
DDCB or HDCB cable runs must not have cable splits (single or double), cable bridges (of any
length) or high resistance or faulty cable splices.
See Chapters 1, 3 or 5 for Strata DK14, DK40i or DK424 secondary protection information
and loop limits.
9-22
1873
1874
Strata DK I&M 5/99