Jabra GN1200 Smart Coiled Connection Lead
| Switch Position |
Plug Wiring |
Used On Telephone |
Microphone Amplified |
|---|---|---|---|
| 1 | M-, R, R, M+ | Most Standard Telephones | No |
| 2 | R, M-, M+, R | Cisco IP Phones 79xx series | No |
| 3 | R, M+, M-, R | Ascom Office & Philips Phones | No |
| 4 | M+, R, R, M- | Japanese Phones, NEC, Nitsuko | No |
| 5 | R, R, M+, M- | Plantronics Vista Base | No |
| 6 | M+, R, R, M- | Panasonic Phones with modular plug | Yes |
| 7 | M-, R, R, M+ | All Nortel Digital Phones & Avaya IP Phones | Yes |
| 8 | R, M-, M+, R | Avaya Callmaster V & VI | Yes |
Volume Controls
Microphone Volume Control
Headset Volume Control
DC Voltage
Maximum Voltage : 10v DC
Minimum Voltage : 1.6v DC
Nominal Voltage : 5v DC
Maximum Current : 2.5 mA
Minimum Current : 280 uA
Characteristics
AC Output Voltage : 30mV
Preamp on
Insertion Gain : 11.5dB Nom Min 10.5dB : Max 12.5dB
Bias Voltage : 1.58v DC Nom , Min 1.53v DC : Max 1.76v DC
Preamp Out
Bias Voltage : 1.49v DC Nom, Min 1.38v DC : Max 1.71v DC
Microphone input
