CyberData Corporation
930260A
Operations Guide
Installing the VoIP Indoor Intercom
Intercom Setup
8
2.2.2 Connecting a Device to the Auxiliary Relay
The VoIP Intercom incorporates an on-board relay which enables users to control an external relay
for activating an auxiliary device such as an electric door strike (see
). The Intercom relay
contacts are limited to 1 amp at 30VDC. The Intercom relay activation time is selectable through the
web interface and is controlled by DTMF tones generated from the phone being called. The DTMF
tones are selectable from the web interface as well.
Note
The three digit code for the auxiliary relay must be sent in conformance with RFC2833
DTMF generation.
Figure 2-5. Auxiliary Relay Wiring Diagram
Warning
Electrical Hazard:
The VoIP Intercom enclosure is not rated for any AC voltages.
Warning
Electrical Hazard:
This product should be installed by a licensed electrician
according to all local electrical and building codes.
Warning
Electrical Hazard:
To prevent injury, this apparatus must be securely attached to
the floor/wall in accordance with the installation instructions.
GENERAL ALERT
GENERAL ALERT
GENERAL ALERT
1
2
3
4
VoIP Intercom
5
6
+
-
DC
POWER SUPPLY
30 VDC @ 1A
MAX.
IN
Switching Diode
High PIV UltraFast
Solid State
or
Mechanical
Relay
Controlled Device
Depending Upon
AC or DC rated
Output Contacts
Requirements
Power Source
AC or DC
Controlled Device
Such As
Electric Door Strike
or
Strobe Light
( )
OUT
Example of External Relay (not supplied)
Intercom PCB
Auxiliary Relay Wiring Contacts
