Features and Specifications Manual
D15 – 283
Doc.
No. 8201 -
Release 1.0
July 2003
Door Lock Release Relays
D-15
FEATURE
DESCRIPTION
Door Lock Release Relays are provided by the DPH(4)-U( ) ETU. While a
station user is talking to a Doorphone, an Access Code can be dialled to
operate the relay associated with that Doorphone. Each Doorphone has a
relay associated with it and the relay can only be operated while talking to
the Doorphone.
The door lock release relay break time can be controlled by the station user
per call.
SYSTEM
AVAILABILITY
Terminal Type
All Multiline Terminals.
Required Components
DPH(4)-U( ) ETU
DP-D-1D Unit
OPERATING
PROCEDURES
1.
Dial a single digit code
B
~
I
to control the door-to-lock release
make
time.
Note:
Make
means shorted or closed.
2.
Dial a single digit code
A
or
J
to make the relay
break
open
again. This step is optional as the relay
breaks
after some time
anyway (controlled in step 1).
SERVICE
CONDITIONS
Door Lock Release Relays cannot be controlled by Single Line
Telephones.
Relay
make
times are flexible.
While a Multiline Terminal is talking to a Doorphone :
Dial
Time
Dial
Time
2
2 Seconds
7
12 seconds
3
4 seconds
8
14 seconds
4
6 seconds
9
15 seconds
5
8 seconds
1
Break (open)
6
10 seconds
*
Break (open)