Installation And Mounting; Switching The Octalarm-Ip On And Off; Recommendations; Alarm Reporting By Telephone Using Internet Telephony (Voip) - Adesys Octalarm-IP User Manual

Adesys B.V. | Wateringen

11. Installation and mounting

11.1

Switching the Octalarm-IP on and off

The unit will switch on automatically after it has been connected to a power point. The
unit can be turned off by removing the plug from the power point and holding in the
Reset button on the print for a few seconds. The Reset key is located under the ethernet
connections in the Octalarm-IP's connections compartment. The connections
compartment is accessed by sliding the control panel up (see paragraph 11.3.1 To Open).
11.2

Recommendations

11.2.1 Alarm reporting by telephone using internet telephony (VoIP)

There is an increasing shift towards internet telephony from analogue lines and ISDN
lines. Internet companies are offering a combination of internet and telephone services
via ADSL or cable. In such cases VoIP or Voice over Internet Protocol is used. Even though
this can be a perfectly adequate solution for normal telephone services, VoIP can present
risks for alarms.
Risk factors for alarms using VoIP
Equipment that is dependant on the mains voltage, like an internet modem, is
•
required for VoIP. If there was to be a mains failure, this equipment would not
function and it won't be possible to send alarms.
VoIP connections have a different bandwidth but this isn't noticeable with voice
•
connections. However, it can have an influence on the modem connections that are
sometimes necessary for alarm reports. Always check that SMS messages are
correctly received.
In practice it seems that traditional telephone connections have a high degree of
•
availability. In contrast, internet connections regularly fail making a connection
impossible. The same will also apply to VoIP since during those periods the alarm
won't work. It is important that a number of measures are taken when connecting an
alarm dialler to a VoIP modem.
Measures to take when using VoIP
Connect the Octalarm-IP directly to the internet via the ethernet connection from the
•
ADSL modem to make line testing possible.
Ensure that there is a monitored emergency power supply for the internet equipment
•
so that it will continue to function if there is a power failure. This is available from
Adésys and offers monitoring from the alarm dialler: type AU-023.
Use with announcements and not with SMS.
•
Measures to take when calling via a splitter
Do not use a standard splitter with ADSL but rather a Security DSL splitter with built-in
overvoltage protection. This is available from Adésys.
See the connection diagram on the next page.
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