NEC ELECTRA ELITE IPK II, Features And Specifications Manual

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Electra Elite IPK II Document Revision 1
Door Box 2 - 339
Door Box
Description
The Door Box is a self-contained Intercom unit typically used to monitor an entrance door. A visitor at the
door can press the Door Box call button (like a door bell). The Door Box then sends chime tones to all
extensions programmed to receive chimes. To answer the chime, the called extension user just lifts the
handset. This lets the extension user talk to the visitor at the Door Box. The Door Box is convenient to
have at a delivery entrance, for example. It is not necessary to have company personnel monitor the
delivery entrance; they just answer the Door Box chimes instead. Any number of system extensions can
receive Door Box chime tones.
Each Door Box has a pair of normally open relay contacts that can connect to an electric door strike. Use
these contacts to remotely control the entrance door. After answering the Door Box chimes, a multiline
terminal user can press the Recall key to activate the Door Box contacts. This in turn releases the
electric strike on the entrance door. The device connected to the Door Box contacts cannot exceed the
contact ratings shown in the table below:
The system can have up to eight Door Boxes. Six chime tones are available.
Conditions
The Door Box Feature Requires a PGD(2)-U10 ADP. A maximum of 56 PGD(2)-U10 ADP
units can be installed in an IPK II system. Refer to the Electra Elite IPK II System Hardware
manual for more information.
If a PGD(2)-U10 ADP circuit has a Door Box (doorphone) connected, you cannot use that
circuit for External Paging.
Door Boxes can ring multiline, single line, and wireless telephones.
External Call forward by Doorphone can forward Doorphone calls Off-Premise while a user
is away. This feature will only work for ISDN lines.
There is off-hook signaling for Door Boxes. If an extension user is on the telephone, the
Large LED will flash indicating the Door Box ringing, and the display will show a call from
the door box.
Door Box Specifications
Contact Configuration Normally Open
Maximum Load 60mA@30 VDC
10mA @90 VDC
Maximum Initial Contact Resistance 50mOhms