2. A connection must be made from the modular jack toward the back of the CS70N
bottom to the middle jack on the GN Netcom SeleCT switch.
3. A connection must be made from the right jack of the SeleCT switch into the modular
jack on the phone base into which the receiver cord would normally attach.
4. The cord which splits into two 3.5 mm audio plugs is attached to the leftward modular
jack on the SeleCT switch and connects to the personal computer, either directly into
the audio and mic input jacks or (preferably) via an external USB sound adapter.
Note: If you do not intend to use the CS70N with your telephone (and only with your
PC) you can simplify the set-up by simply attaching the bifurcating audio cable that
comes with the SeleCT switch directly from the modular jack on the back of the CS70N
base directly to your PC or sound adapter. In this situation the switch isn’t needed and
nothing will be plugged into the front modular plug on the base of the CS70N (see Figure
2 above)
Note 2: If your telephone has a modular “headset” jack, the connections can be
simplified. In this situation it is not necessary to attach anything to the plug toward the
front of the CS70N bottom (see figure 3 below) and the telephone headset cord is
undisturbed.
Figure 3: Set-Up with Telephone Having Modular
“Headset Jack”
Optional set-up for use with telephone having dedicated modular
“headset” jack. In this situation answering and placing calls
involves activating the “headset” button on the phone.
Preparing the CS70N for use with your Telephone and Personal Computer:
1. First you should plug in and charge the CS70N per the Plantronics instructions (it takes
3 hours for a full charge and 20 minutes is the minimum to allow further setup).