Siemens PAD-4-CLSA (500-850254) NAC Expander Class A Adapter CardModel PAD 4 CLSA from Siemens Fire Safety is an optional adapter card used exclusively in Class A field selectable wiring configurations. This optional Class A adapter card allows for two (2) additional Class A outputs to each PAD 4 Notification Appliance Circuit Extender, thus converting two (2) built in 'Class A' NACs into a total four (4) 'Class A' NACs. Model PAD 4 CLSA is Underwriters Laboratories 1481 Listed for power supplies.

Intended for full building notification as well as on the property ground

DAA2 amplifiers may be mixed with DAX and DAA series amplifiers on the same DAL

A DAL (digital audio loop) can support wire

or surface or weatherproof (WP) backboxes

The CK300-CO-IV and CK300-CO-BL support other CO detectors: photo/CO and CO only

Mounts to a standard 4"sq

mounting track

apartments

The CHG-75 Charger (optional) can also be housed in the battery box

The LIM-1 then isolates that part of the loop

or surface mount with Wheelock surface backboxes

or it can be used as a backup amplifier