BSX Isolated Audio Entry System
PD-142 Issue 1
Installation and Operating Manual
Page 6 of 32
Basic System Operation
Making a Call
The Entrance panel has a push button for each flat in the building, engraved with the
associated flat number. A caller pushes the required button and the phone will start to ring
in the flat; this ringing tone will also be heard at the panel. The ringing will continue for 30
Seconds* or until the phone handset is picked up.
Once the handset is picked up the resident can talk to the caller for up to 60S*. During this
time the resident can press the lock button to release the door. An electric lock release
will operate for a fixed duration of 3 Seconds* and speech will continue until the lock
release has ceased operating. Alternatively replacing the handset on hook will finish the
call.
Audible indication at the panel is provided both when the phone is ringing and when the
door release is active. The door release tone has adjustable volume, while the ringing
tone comes from the phone and is fixed.
Privacy
To ensure complete privacy of speech and freedom from interference from other residents,
the audio and lock functions of the phones are disabled until the phone has been called.
Ringer Mute
Some models of phone have additional features such as Ringer Mute which can be
activated during periods when the sound of the phone ringing would be a nuisance (e.g.
baby sleeping, youths pressing buttons). See specific Phone models for more details.
Door Monitoring
Door Status Indication (Door Monitoring) is available on some models; when the entrance
door is left open, an LED indicator illuminates on the phone. This function requires a door
monitor switch to be installed at the door or in the lock release.
Trades (Optional)
If independent access to the building is required for tradesmen (e.g. Postman) then an
optional Trades button can be fitted to the panel. When the Trades button is pressed the
lock release will activate for 3 Seconds*. All the BSX systems have a Time Clock (with
auto BST and battery backup) which can be used to restrict the operating hours of the
Trades facility.
Second Entrance
On a system with two entrances the caller will be unable to ring any of the flats whilst the
other entrance is already in use. The system will indicate busy by sounding an intermittent
tone for 3 Seconds.
Egress
An optional Egress button can be fitted to the inside of the door to enable resident to freely
exit the building. A momentary press of the button will operate the electric lock release for
3 Seconds*.
*Lock and Ring and Speech times are programmable at installation
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see Page 14
