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1. INTRODUCTION
Background
The Homelink Extra and Homelink Extra II are emergency alarm units which
will call a monitoring centre (for example a warden's office) over the public
telephone network when the user activates a trigger. Homelink can be sited
on a desk or it can be mounted on a wall. The trigger might be the orange
button on the front of the set, a small radio transmitter worn either as a
pendant round the user's neck or on the user's wrist, or a pull cord on the
ceiling. When Homelink makes the call the monitoring centre can talk to the
user and hear the user's replies.
Homelink can also be used as a simple intruder alarm. By pressing an
"Away" button the user can set the unit to report when, for example, a door
contact is activated.
Homelink is mains powered, and connects to a standard telephone socket.
In the event of mains power failure an internal lead acid backup battery
provides power for emergency calls for up to 30 hours. The installer can
program Homelink to report mains power loss to the monitoring centre.
Homelink can also detect a cut or short circuit telephone line. To report the
event Homelink flashes the line fail light, and can be programmed to sound a
warning "bleep". Homelink can be programmed either by using a DTMF
telephone (limited functions) or a PSION II programmer.
For full PSION programming instructions see Homelink Extra PSION
Programming Guide part number 496759. Call Marketing on +44 (0)1594
545444.
496758
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