Door Phone/Lock Control Unit And Door Phone Installation; Ddcb And Hdcb Wall Mounting; Door Phone/Loch Programming Considerations - Toshiba Strata DK 280 Installation Manual

5.6.1 DDCB/HDCB and MDFB Cabling
Refer to Chapter 7-Wiring Diagrams for DDCB,
HDCB, and MDFB wiring/interconnecting details. For
*door lock control installation procedures, refer to
Chapter 7-Wiring Diagrams. If using 24 AWG cable,
the length of the cable run from the key service unit
(KSU) to the MDFB (via the DDCB or HDCB) must not
exceed 1,000 feet (305 meters) (see Table 7-4).
Notes:
1. DDCB or HDCB cable runs must not have
the following:
l
Cable splits (single or double)
l
Cable bridges (of any length)
l
High resistance or faulty cable splices
2. See Chapter 7-Wiring Diagrams for
secondary protector information.
5.6.2 DDCB and HDCB Wall Mounting
The DDCB and HDCB is designed to be mounted on a
wall or other vertical surface. Mount the units in
accordance with the following steps:
1. Locate the two mounting holes on the right-hand
side on the DDCB or HDCB (Figure 5-16).
2. Remove the side cover from the DDCB or HDCB
to expose the two left-hand mounting holes
(Figure 5-16).
3. Position the DDCB or HDCB adjacent to the key
service unit (KSU) with regard to wiring needs.
4. Secure the DDCB or HDCB to the mounting
surface with four one-inch panhead wood screws.
5.6.3 MDFB Wall Mounting
Mount MDFBs to a wall or vertical surface in
accordance with the following steps:
1. Remove the screw from the bottom of the cover.
Detach the cover from the base and metal frame
(Figure 5-17).
2. Position the metal frame and base to the mounting
surface and secure with two one-inch panhead
wood screws (Figure 5-l 7).
3. Attach cover to the metal frame and base and
secure with the screw which was removed in
Step 1.
EXTERNAL POWER STRAPS
(DDCB ONLY) .
KSU
1
JACK
Note:
SCREWS (4)
See Table 7-4 regarding
external power requirements.
DK0075
Figure 5-16
Door Phone (DDCB or HDCB) Installation
TWO WALL
MOUNTING
HOLES
DOOR PHONE
Figure 5-17
Door Phone (MDFB) Installation
/
DK0076
.:
5-16
January
1996