| The 9307.1 has a particular advantage over all other door entry manufacturer's power supplies. Most provide 8V (or similar) to provide power to the speaker amplifier in the entrance panel.
SRS provide 12V DC to do this, but this 12V DC can also be used to provide power for the electric lock release. This saves the installer the cost of an additional power supply, or around £20 - £25
Installation Instructions
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Another unique feature of SRS systems is the 9307.2 timer relay.
The output from the phone to operate the lock release is normally present while the lock button is depressed. On SRS systems the 9307.2 timer relay operates the lock release for a pre set time (1 - 99 seconds).
The relay output is suitable for interfacing with all access control, keypads and electric locking devices.
Installation Instructions
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The 5141 neatly combines the features of the 9307.1 and the 9307.2 into a lockable metal enclosure.
In addition the 5141 allows the installer battery backup and a unique telephone connection system.
The telephone connection systems provide terminations for each telephone making a maintainance, fault finding and installation easier.
Installation Instructions
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