Valcom V-2901A User Manual - page 2
2
Features
•
Compatible with PABX, E-Key and 1A2
telephone systems
•
Switch selectable - loop or ground start access
•
Provides handsfree talkback
•
RJ11 modular connector for Tip and Ring
connections
•
Power ON LED
•
Provides door unlock contacts
•
Programmable options:
Programming access code
Ring pattern
Activate lock relay
Duration of lock relay activation
Time door can remain open after unlock
(exit delay time)
Entry delay time
Duration of ringing
Disable station alarm
Alarm disable code
Station alert tone
•
Input for manual door unlock (push-button)
•
Built-in 30Hz ring voltage generator with on/off
switch
•
Ringback tone to speaker
•
Calls can be placed On Hold
•
Background music input with volume control
•
Speaker to phone volume control
•
Phone to speaker volume control
•
Confirmation tone
•
Compatible with tone dial phones
•
Works with Valcom V-1072A doorplate speaker
or other Valcom talkback or doorplate speakers
•
Compatible with VPB-260 battery backup
Dimensions/Weight
•
8.60"H x 11.00"W x 2.30"D
(21.84cm H x 27.94cm W x 5.84cm D)
•
3.0 lbs. (1.36 kg)
Nominal Specifications
Input Impedance:
600 Ohms
Input Level:
-10dBm Nominal
Output Impedance:
45 Ohms
Ring Supply:
90VAC, 30Hz
Power Requirements
Power Supply:
-24VDC filtered
600mA minimum
Environment
Temperature:
0 to +40°C
Humidity:
0 to 85% (non-precipitating)
Components
The following equipment is recommended when
using the V-2901A:
•
1 - V-2901A Universal Door Answering System
•
1 - C. O. Line Position (Electronic Key
System);
or
•
1 - Loop Trunk Position (PABX); or
•
1 - 400 type line card (1A2 key)
•
1 - Dedicated single line phone*
•
1 - Valcom Doorplate Speaker**
•
1 - VP-624B Power Supply
E-Key
C.O.Line
Position
V-2901A
Universal
Door
Answering
System
Doorplate
Speaker
with
Pushbutton
SIMPLIFIED BLOCK DIAGRAM OF A TYPICAL INSTALLATION
FIGURE 1
Power
Supply