Nortel i2050 Installation Manual

Also see for i2050: Description User guide

Contents

14 Chapter 2 Installing the i2050 Software PhoneP0988431 Issue 03USB Audio KitOperation of the i2050 Software Phone requires the use of the Nortel Networks USB Audio Kit.The USB Audio Kit provides a high quality predictable audio interface which is highly optimizedfor telephony applications. The USB Audio kit allows the i2050 Software Phone to have anabsolute and predictable loss and level plan implementation which is necessary to meet TIA-810,FCC part 68 and its international equivalents as well as the ADA requirements for the hearingimpaired. With the USB Audio kit, the i2050 can achieve performance rivaling or surpassing thatof hardware telephones.The USB Audio Kit is fully compliant with version 1.1 of the USB Device Specification andWindows Plug & Play specifications. It is fully compatible with the suspend and resume functionsfor effective use in battery operated laptops. It is functional on Windows 2000 Professional,Windows 98, Windows 98 Second Edition, and Windows Millennium. No drivers or software arerequired for installation.In the box• USB Headset Adapter• Installation Guide (English and French)• USB cord• Telephony grade monaural headset• Lower cordset with quick disconnectConnectors• RJ-9 headset/handset jack• Accessory jack for “in-use” lamp• USB device jackSpecifications• Native Audio format: 16 bit linear 8 KHz over USB, limited to 8 bit PCM logarithmic codingin hardware• OS Compatibility: Windows 98, Windows 98SE, Windows 2000, Windows ME• Power Source: USB power provided from computer• Enumeration: Enumerates as USB Composite Device and USB Audio Device• Channels: Mandatory control channel for enumeration, Bi-directional isochronous channelfor audio• Electret Microphone Bias: 3 V• Maximum SPL Protection: limited in headset• In-Use Lamp Connector: Isolated contact closure - polarity insensitive