Installing the Singlewire InformaCast Indoor Intercom with Keypad
Using the On-Board Relay
Operations Guide
931640A
CyberData Corporation
12
2.3.2 Using the On-Board Relay
GENERAL ALERT
Warning
Electrical Hazard:
This product should be installed by a licensed electrician
according to all local electrical and building codes.
GENERAL ALERT
Warning
Electrical Hazard:
The relay contacts are dry and provided for a normally open
and momentarily closed configuration. Neither the alternate power input nor PoE
power can be used to drive a door strike.
GENERAL ALERT
Warning
Electrical Hazard:
The relay does not support AC powered door strikes.
Any use of this relay beyond its normal operating range can cause damage to the
product and is not covered under our warranty policy.
The device has a built-in relay that can be activated by a web configurable DTMF string that can be
received from a VoIP phone supporting out of band (RFC2833) DTMF as well as a number of other
triggering events. See the
on the web interface for relay settings.
This relay can be used to trigger low current devices like LED strobes and security camera input
signals as long as the load is not an inductive type and the relay is limited to a maximum of
1 Amp @ 30 VDC. Inductive loads can cause excessive “hum” and can interfere with or damage the
unit’s electronics.
We highly recommend that inductive load and high current devices use our Networked Dual Door
Strike Relay (CD# 011375) (see
Section 2.3.3.2, "Network Dual Door Strike Relay Wiring Diagram
).
This relay interface also has a general purpose input port that can be used to monitor an external
switch and generate an event.
For more information on the sensor options, see the
on the web
interface.