Mike's PBX Cookbook

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Compatible with Norstar / Meridian 1 / Business Communications Manager

4102 USB AuxBox

The 4102 USB AuxBox adds USB plug & play digital recording to the standard features of the 4100.

  • Detection of: Message waiting, Ring, In-use, and Page
  • Digital to analog conversion for recording or amplification.

Download: 4102 Hardware Installation Guide

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Automatic detection of M1 or Norstar signaling protocol.
Option switches control the following features:

  • Analog output: high (0 dBm) or low (-18 dBm)
  • A-law / μ-law speech encoding
  • Relay output functions (2 provided)
  • Both speech directions or receive channel only


The USB connectivity allows calls to be recorded automatically or by hot-key (press the hot-key anytime during a call and the entire call from beginning to end is recorded). Call related data such as Caller ID or outbound dialed number from the telephone display are also captured.

Software included with the USB AuxBox provides the following setup options:

  • WAV or WMA storage format
  • Directory for call files to be stored
  • Automatic or hot-key activated call recording
  • Number of days to store call files

The USB AuxBox provides pure digital recording without analog conversion, and provides automatic digital gain control for both transmit and receive channels.

The USB AuxBox provides analog audio output in stand-alone configuration or simultaneously with USB digital audio when connected to a PC.

This product has been manufacturer discontinued. Consequently, the information on this page is for reference purposes only.

4102 Specifications:

Power Supply: Adapter included, 117V 60Hz to 24Vdc 200 mA
Loop limit (from PBX/KSU): 4000 feet (1200m), Meridian 1
2600 feet (800m), Norstar, Business Communications Manager
Bridge Tap: 10 feet (3m) Recommended maximum (if not series)
Digital loop connection: RJ12 jacks series or bridging
Dry contact outputs: 2.5 mm jack (qty 1 plug to plug cord provided)
50mA 30V maximum
2 provided, option selectable for any combination of ringing, in use, message waiting, or paging.
Analog audio output: 3.5 mm audio jack
-12dBm nominal 600 ohm or
-18dBm nominal 600 ohm
Indicator LEDs: Power/USB, M1/Norstar, Ring, Msg Waiting, Off-Hook (in use), Page, Relay 1 active, Relay 2 active.
PC Requirements: Windows 98, or Windows 2000, USB port
USB: 1.1
Cables provided: One 6ft (2m) USB cable
One 2.5mm to 2.5mm relay cord


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Tel: (604) 454-3790
Fax: (604) 437-5726

Algo Communication Products Ltd.
4500 Beedie Street
Burnaby, B.C., Canada
V5J 5L2

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