Jabra GN1200 Headphones User Manual


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Jabra GN1200
© 2007 GN A/S. All rights reserved. Jabra® is a registered trademark of GN A/S. All other trademarks included herein are the property of their respective owners.
(Design and specications subject to change without notice)
Features Benets
Simple 8-position slide adjustment No need for a user manual; simply slide until a dial tone is heard.
Standard RJ9 connector Connects to virtually all telephones using a standard modular plug.
Standard GN Quick Disconnect plug to headset Works with any GN headset equipped with Quick Disconnect.
Straight 80 cm / 31.5 inch cord or
lightweight coiled cord
Longer than many standard cords, yet at a competitive price.
Built-in low-current microphone amplier Enables perfect operation with telephones that require extra signal gain such as Cisco, Panasonic, Nortel, and Avaya,
plus many IP telephones.
Jabra GN1200
Switch position
Matching Telephone system Mod plug wiring Amplied
microphone
Equivalent
GN cable
1 Standard (most common) M-, R, R, M+ No 8800-00-01
2 Cisco IP phones 79xx series R, M-, M+, R No 8800-00-37
3 Ascom oce and Philips phones R, M+, M-, R No 8800-00-03
4 Japanese phones, NEC, Nitsuko M+, R, R, M- No 8800-00-25
5 Plantronics Vista Base R, R, M+, M- No 8800-00-20
6 Panasonic phones with modular plug M+, R, R, M- Yes 8800-00-25A
7 Nortel digital phones and Avaya IP phones M-, R, R, M+ Yes 8800-00-01A
8 Avaya Callmaster V and VI, Cisco IP phones 79xx series R, M-, M+, R Yes 8800-00-37A
The eight switch positions and corresponding telephone systems
DC Voltage
Maximum Voltage 10v DC
Minimum Voltage 1.6v DC
Nominal Voltage 5v DC
Maximum Current 2.5 mA
Minimum Current 280 uA
Electrical specications
Characteristics
AC Output Voltage 30mV
(preamp on i.e. positions 6-8)
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 output i.e. positions 6-8)
Bias Voltage 1.49v DC Nom, Min 1.38v DC : Max 1.71v DC
(microphone input)
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