The MA 430 Alarms Device (for SC 688 – SC 689), realized on a printed circuit board, detects the absence of the power supply voltages B1 and B2 that are present in entry of the sub-rack and that come from the exchange battery.

It has to be installed in the sub-rack and mechanically connected to the pre-existing structure using the connections of the two batteries. You can install the device without interrupt the service.

The TELECO MA 430 Alarms Device has the following interfaces:

– Power supply batteries input: B1 and B2.

– Alarms input from sub-rack: C1.

– Alarms output toward sub-rack: C2.

– Alarms output AND and OR battery: M1 and M2.

– Optical indicators: L1 and L2.

The dimensions of the MA 430 are:

– Width: 63 mm.

– Max depth: 113 mm.

– Height: 20 mm.

– Fixing: On the sub-rack using the attestations of the two batteries.