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AMG3788ERN-DR-1550-HP
Instruction Sheet D16678-00
Following a change of state the contacts will remain open, regardless of whether the alarm condition reverts
back to its previous state, until the a reset signal is presented to the alarm input connections. The alarm
reset input is biased at 5volt via 1000ohm resistor. To reset the alarm, the alarm reset is required to be
pulled to ground, either by a volts free contact or an open collector output. The alarm output will be held in a
closed state whilst the alarm reset is connected to ground.
On release of the alarm reset, the alarm output will remain in a closed state until the next change of state to
the 3700 system connected to the receiver. The alarm output may not register a change of state which
happens within 5 seconds of release of the alarm reset.
Safety
The 3700 series of products uses a Class 1 laser system in accordance with EN 60825-2:2000.
It is always advisable to follow good practice when working with optical fibre systems. This includes:
Do not stare with unprotected eyes or with any unapproved collimating device at fibre ends or connector
faces, or point them at other people.
Use only approved filtered or attenuating viewing aids
For other safety issues and advice on good practice associated with the optical fibres systems see
EN60825-2:2000 or your local safety officer.
Maintenance and Repair
There are no user serviceable parts within the AMG3700 products.
In case of problem or failure contact your local support centre or AMG Systems Ltd, Technical Support
Department on tel. +44 (0) 1767 600777.
See unit data sheet for full specification.