NEC SL2100 - Door Box

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 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 Flash 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 following table:
Door Box Specifications
Maximum Output 1.75 V RMS
Output Impedance 600 Ohms
The system can have up to 6 Door Boxes. Six chime tones are available.
Conditions
• Digital and IP Terminals will show the Door Box ID Name as assigned in PRG 32-04-01.
• The Door Box Feature Requires an unused analog extension port (082U-B1 : Analog Extension
Port1-2 fixed) on the each board.
• To user Door Box, hardware switches on the 082U board needs to be set to DOOR1/DOOR2 side.
• Door Boxes can ring Multiline, Single Line, and wireless telephones.
• A Door Box cannot ring a virtual extension.
• External Call forward by Doorphone can forward Doorphone calls Off-Premise while a user is away.
This feature only works for ISDN lines.
• Off-hook signaling is available for Door Boxes. If an extension user is on the telephone, the Large
LED flashes indicating the Door Box ringing, and the display shows a call from the door box.
• The door strike cannot be activated when a door box is forwarded off-premise.
• Single line door phone acts like a single line until the hotline time expires then it will call the
doorphone destination.
• When talking to a single line door phone, pressing flash will activate the doorlock release.
Default Settings
Disabled
System Availability
Terminals
All Stations
ISSUE 1.0
SL2100
Features and Specifications Manual 1-291
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