NEC DSX Systems NEC-1091054 DSX Wireless Headset Adapter

This setup guide from Headset Direct will feature the Plantronics CS540 wireless headset. The Plantronics CS540 is a wireless headset made for multi-line office or business phone. It comes in two wearing styles - over your ear and headband up over your head. The first thing to become familiar with, with the Plantronics CS540 is the base. The back of the bases is where you'll plug in all the cords that came included with the unit. First is narrowband/wideband switch. Power jack. Handset lifter EHS cable. Telephone interface cable and auto answer switch. On the bottom A through G is the compatibility slide switch for your telephone. Then you have two dials, one for speaker volume and one for microphone volume controls. To install your CS540 first unplug your handset cord from your telephone. Next, take the telephone interface cable and plug into your phone. Plug the other end into the bac