Adtran OPTI-3 Rackmount Chassis (RMC), Part# 1184003L1 NEW CALIBRATION 46 (L) x 2

46 (L) x 2

The well-made Valcom Clarity S-521B 2 x 1 Lay-In Ceiling Speaker w/Backbox 25-70 volt is a lay-in ceiling speaker with a backbox 1 x 2

and Acoustic Clarity technology that gives you high-definition conversations

Alignment markings for improved accuracy

Available colored lens cap kit

Adtran OPTI-3 Rackmount Chassis (RMC), Part# 1184003L1 NEW CALIBRATION 46 (L) x 2Mounts to a 19 inch or 23 inch Central Office Rack, and hosts two redundant OPTI 3 Controller Modules (OCM) Provides six BNC connectors on the chassis backplane, corresponding to the Tx Rx of the three DS3 interfaces Up to four RMCs can be installed in a CO rack with no spacing between NEW IN THE BOX