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Axel Macrotel DIGITAL Operating Manual

Digital studio telephone hybrid
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Macrotel DIGITAL
DIGITAL STUDIO TELEPHONE HYBRID

Operating manual

(Rel. 1.1)
Via Caduti Di Sabbiuno 6/F • 40011 Anzola Emilia • Bologna • Italy
+39 051 736555 • Fax. +39 051 736170
• web site:
e-mail:
info@axeltechnology.com
www.axeltechnology.com

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  • Page 1: Operating Manual

    Macrotel DIGITAL DIGITAL STUDIO TELEPHONE HYBRID Operating manual (Rel. 1.1) Via Caduti Di Sabbiuno 6/F • 40011 Anzola Emilia • Bologna • Italy +39 051 736555 • Fax. +39 051 736170 • web site: e-mail: info@axeltechnology.com www.axeltechnology.com...
  • Page 2 Macrotel DIGITAL Pag. 2...

  • Page 3: Table Of Contents

    Macrotel DIGITAL CONTENTS INTRODUCTION ..............................4 MAIN FEATURES............................. 4 EQUIPMENT DESCRIPTION ..........................5 FRONT PANEL..............................5 REAR PANEL ..............................6 WIRING AND CONNECTIONS ..........................7 AUDIO INPUT (SEND) ............................. 7 AUDIO OUTPUT (RECEIVE )..................... 8 AND REC OUT REMOTE INTERFACE ............................. 9 TEL LINE CONNECTION ..........................

  • Page 4: Introduction

    (> 55 dB). With no echo and no "bottom of the barrel" sound, the Macrotel Digital is thus ideal when the very best audio quality and uniformity is required for talk shows, news feeds, production, recording studios, and even internet applications.

  • Page 5: Equipment Description

    Macrotel DIGITAL 2 EQUIPMENT DESCRIPTION 2.1 FRONT PANEL Send potentiometer it adjusts the level of audio signal sent to phone caller. At its midpoint (6 o’clock position), the pot is set for nominal send level (0dBm). Aux-in potentiometer It adjusts the level of the auxiliary send audio coming from the remote connector input and going onto the telephone line to the caller.

  • Page 6: Rear Panel

    Macrotel DIGITAL 2.2 REAR PANEL ON/OFF main switch the led inside switchs on/off accordingly. If it is off while the switch is ON, please check the supplied AC cord and the fuse the power supply socket has an integral fuse drawer containing the power fuse...

  • Page 7: Wiring And Connections

    Macrotel DIGITAL 3 WIRING AND CONNECTIONS We suggest to use high quality wires, well protected, and balanced connections to avoid external EMD. AUDIO INPUT (SEND) The equipment features electronically balanced XLR female inputs (line level). XLR pinout: Pin 1 Pin 2...

  • Page 8: Audio Output (Receive And Rec Out)

    Macrotel DIGITAL 3.2 AUDIO OUTPUT (RECEIVE AND REC OUT) The equipment features XLR analog outputs electronically balanced by high-quality buffers, capable of withstanding even low-impedance loads (600Ω), with levels of up to +20 dBu. XLR pinout: Pin 1 Pin 2...

  • Page 9: Remote Interface

    ** Remote indicators provided via open collector outputs to Indicator Common (<15V, <39mA) 3.4 TEL LINE CONNECTION Macrotel Digital hybrid operates on standard POTS (Plain Old Telephone Service) / PSTN (Public Switched or an analog extension from a PBX via a standard RJ11 Telephone Network) analog telephone lines modular jack.

  • Page 10: Phone Set Connection

    Macrotel DIGITAL 3.5 PHONE SET CONNECTION This RJ11 connector will accept 6 conductor modular plugs, but only the 2 central conductors (typically Red & Green ) are used for connection to a standard analog telephone set. The telephone line is present at this connector when the hybrid is off.

  • Page 11: Settings

    Macrotel DIGITAL 4 SETTINGS 4.1 DIP SWITCHES SETTING DIP SWITCHES are .off. in the down position and .on. in the up position. DIP SWITCH 1 Enables/disables the Burst Adapt feature. In the .off position (down) the hybrid is in Auto Adapt Mode. In the .on. position (up) the hybrid will send a noise burst to the telephone line and aggressively adapt before returning to Auto Adapt Mode.
  • Page 12 Macrotel DIGITAL augmenting the level of .soft. callers and attenuating the level of .loud. callers. This helps provide more uniform caller audio levels at the caller output of the hybrid. The AGC works to achieve an equivalent average caller level of -30dBm...

  • Page 13: Operation

    Macrotel DIGITAL 5 OPERATION RAINING THE TELEPHONE ECHO CANCELLER Upon connection to the telephone line, the digital hybrid will automatically begin its telephone echo cancellation process. This will optimize the send to caller separation. If the send to caller separation is not sufficient, you may force the hybrid to .train.

  • Page 14: Block Diagram

    Macrotel DIGITAL 6 BLOCK DIAGRAM Pag. 14...

  • Page 15: Technical Specifications

    Macrotel DIGITAL 7 TECHNICAL SPECIFICATIONS GENERAL DATA TELCO INTERFACE Power Supply 220 / 110V 50 / 60 Hz 30VA Tel line connector RJ 11 (A-Lead supervision) Dimension 434x351x44mm (1 rack unit) POTS line, analog extension from Capability a PBX or dry line (no DC offset...

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