8-14
INSTALLATION-PERIPHERALS
SECTION 400-096-208
SEPTEMBER 1992
PDKU
- OR-
PEKU
- OR -
PESU
(See Ch. 9
wiring diagrams)
(Port 04, 12, 20, or 28)
DDCB or HDCB
A
C
2
B
3
4
5
RJ11
3
4
2
5
TO CUSTOMER
SUPPLIED
DEVICE
MDFB
1
2
RJ11
3
4
MDFB
1
RJ11
3
4
MDFB
1
3
4
DOOR PHONE
A
DOOR PHONE
B
- or -
DOOR LOCK CONTROL
2
2
DOOR PHONE
C
3
4
HDCB WIRING CHART
PEKU or PESU
TO
HDCB KSU JACK
VT (34) / VR (9)
DT (35) / DR (10)
TO
TO
PIN 3 / 4
PIN 5 / 6
DDCB WIRING CHART
PDKU
TO
DDCB KSU JACK
DT (34) / DR (9)
TO
PIN 3 / 4
See Chapter 9 for PEKU, PESU, or PDKU pin-out information
NOTES
1.
2.
3.
Relay control contact will close when the door phone is in the ringing, talk, or monitor state.
See Paragraph 4.16 and 4.17.
Relay contact specifications are -24VDC at 1.0 amp. max. Do not connect relay contacts to 120 AC commercial power.
NOTE 1
RELAY
CONTROL
CONTACT
DOOR LOCK
CONTROL
CONTACT
NOTE 2
PT (35) / PR (10)
TO
PIN 5 / 6
FIGURE 8-11
MULTIPLE DOOR LOCK CONTROL OPTIONS (DDCB/HDCB)
4) Refer to Figure 8-10 for wiring/interconnect-
ing details. Connect the PIOU, PIOUS, or
PEPU to the MDF as required for the door lock
control function.
4.16 Door Lock Control with DDCB and HDCB.
In addition to the option interface PCB (PIOU,
PIOUS, PEPU), each digital door phone/lock con-
trol unit (DDCB) and electronic door phone/lock
control unit (HDCB) can provide one door lock
control. This capability enables as many as four
DDCB/HDCB door lock controls to be provided with
PCTU1, PCTU2, PCTU3, and PCTU4, and as
many as three with PCTUS. The DDCB is available
with Release 4 only, but the HDCB comes with
Release 1 and higher. DDCBs connect only to
digital circuits (always Circuit 5 on a PDKU) asso-
ciated with ports 04, 12, 20, and 28; HDCBs con-
nect only to electronic circuits (always Circuit 5 on
a PEKU or PESU) associated with ports 04,12, 20,
and 28.
It is important to note that each DDCB/HDCB
door lock control reduces the maximum door
phone capacity by one. So, for example, a
system operating with a PCTU (1, 2, 3, or 4)
can only support 10 door phones, if two DDCB/
HDCB door lock controls are installed. Door
lock control with the PIOU, PIOUS, or PEPU
does not reduce door phone capacity. Any
digital or electronic telephone can have door
lock buttons which open the door locks when
pressed. Configure each DDCB/HDCB for the
door lock control function as follows:
DDCB Installation (Figure 8-11 and Chapter 9
DDCB Wiring Diagram):
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