Polycom Vortex EF2201 Reference Manual
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Polycom Vortex EF2201 Reference Manual

Polycom ef2201 audio: user guide
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Summary of Contents for Polycom Vortex EF2201

  • Page 1 Vortex EF2201 Reference Manual...

  • Page 3: Table Of Contents

    EF2201 Front and Rear Panels... 5 Installation ...6 Mounting the EF2201 ... 6 Connecting the EF2201 to Other Equipment ... 7 Device IDs on the EF Bus... 8 Connecting Multiple EF2201 Devices... 8 Factory Default Settings (Preset 0) ... 9 Check Surrounding Equipment...

  • Page 4: Introduction

    Telephony signals are communicated with Vortex devices over the digital “P-bus” channel of the EF Bus without the need for an analog input and output. The EF2201 can be controlled via RS-232, Vortex Expansion bus, and via the front panel controls.

  • Page 5: Product Registration

    Selectable auto-hang-up via loop drop and/or call progress tone detection • 5-band parametric EQ on the phone input and output • Automatic gain control on receive telephone audio path for consistent receive audio • Compression/limiting on transmit telephone audio path •...

  • Page 6: Pre-Installation

    External Power Supply Figure 1. What’s Included with your Vortex EF2201. What’s Not Included The following equipment is not included with the EF2201 product package, but may be necessary to create a completely functional system: • Acoustic Echo Canceller •...

  • Page 7: Ef2201 Front And Rear Panels

    EF2201 F RONT AND Figure 2. EF2201 Front and Rear Panels LCD D the EF2201. decreases the value of a parameter. the value of a parameter. handset connected to the P disable the P 10. I 11. O 12. EF B 13.

  • Page 8: Installation

    One EF2201 fits in a single rack space. Recommendation While not required, leave a single rack space in between the EF2201 and other units For Easy Access in your rack. This gives you easier access to the back panel.

  • Page 9: Connecting The Ef2201 To Other Equipment

    EF2201 ONNECTING THE Typical EF2201 The EF2201 will typically be connected to other equipment in a single room setup as Connections shown below in Figure 3 and Figure 4. Figure 3. Block diagram of typical EF2201 connections: a single room using one EF2201.

  • Page 10: Device Ids On The Ef Bus

    W, X, Y, and Z busses, and how many have the ability to transmit on the P Bus. The EF2201, for example, can only transmit on the P bus while the EF2241 can transmit on the W, X, Y, Z and P busses and the EF2280 can only transmit on the W, X, Y, and Z busses.

  • Page 11: Factory Default Settings (Preset 0)

    EF Bus Terminator Cat-5 cable No terminator is needed on EF2201 Figure 5. Terminate the EF Bus link on the EF2280 when connecting an EF2201 to one or more EF2280s. ACTORY EFAULT ETTINGS The following is a list of the factory default settings of the EF2201. Since the equip-...
  • Page 12 AGC Rate Phone Input Gain Mute Noise Cancellation Noise Cancellation Level Line Echo Cancellation Dynamics Processing Filtering HONE Mute Phone Output Gain Dynamics Processing Filtering EF2201 Reference Manual ORTEX ARAMETERS ARAMETERS ONTROL NPUT UTPUT NSTALLATION ACTORY EFAULT RESET ALUE 9600...

  • Page 13: Check Surrounding Equipment

    Preset 0 (factory default) if power is lost. HECK URROUNDING Check Levels to the If you are connecting the EF2201 to a Vortex device, the default level of 0 dB should Acoustic Echo give sufficient gain. Canceller © Polycom, Inc.

  • Page 14: Integrating The Ef2201 Into Your System

    EF2201 I NTEGRATING THE Operating the The EF2201 can be operated in two ways: through the LCD menu on the front panel EF2201 or through RS-232. For control via RS-232, please refer to the EF2201 Programming Guide, which includes programming tips as well as the EF2201 RS-232 commands.

  • Page 15: The Ef Bus

    EF2201). Note that the EF2241 counts as one of both types. If the device can trans- mit on a particular bus, it cannot bring its own mix back into itself. For example, an EF2201 with ID 00 cannot add the input PB0 into PM0 or PM1 (see example in Fig- ure 6 below).

  • Page 16: Presets

    After configuring your EF2201, save your settings to a User Preset (P Also, set the P If you have multiple EF2201 devices in your system, save to a User Preset on each unit and set the P EF2201 Reference Manual ORTEX Note.

  • Page 17: Lcd Menu Structure

    Table 1: Summary of button functions on the EF2201. The EF2201 has five menu buttons on the front panel for navigation in the menu tree. Press the H menu. The E est level of menus. To scroll back through menu items at a particular level, use the button.

  • Page 18: System Menu

    ASSWORD CREEN AVER OFTWARE Choose the EF2201 Preset for power up. This command controls whether or not status mes- Turns error messages On or Off. Locks or unlocks the front panel. When the front panel is Once the device has been unlocked, the passcode may...

  • Page 19: Phone Control

    Figure 9. EF2201 Phone Control sub- menu © Polycom, Inc. Causes the EF2201 to restart and boot up. Enables or disables auto answer. Enables or disables auto hangup based on call Enables or disables auto hangup cased on loop Selects the country where you are using the unit. This must be Adjusts the gain of the dial tone.

  • Page 20: Inputs

    NPUTS The input menu allows the user to adjust functions related to the input signals to the EF2201. This menu contains L TROL TION Input Settings ROCESSING first select an input and then select settings for that input. You can also choose to Input T apply the settings to all Inputs, Inputs 1-4, or Inputs A-D.

  • Page 21: Outputs

    Output Settings you should always try to adjust input gains to a good level so that the output gain is 0 dB. If you find that you need a positive output gain from the EF2201, first check your Output T input gain to make sure you are getting a good level (around 0 dB).

  • Page 22: Parametric Eq Menu

    • Gain • Slope Filter Enable • Lowpass. Figure 13. EF2201 • Parametric EQ sub- Highpass. menu • Center frequency on Parametric/Peaking is the point with the most (or least) gain. Bandwidth is the width halfway up the peak (so if the peak is 10 dB, it is the width between the points where the gain is 5 dB).

  • Page 23: Macros

    ACROS Run Macro (0-255). Macros Run Macro (0-255) Figure 15. EF2201 Macros submenu © Polycom, Inc. LCD M Allows you to run macros from the front panel menu. EF2201 Reference Manual ORTEX TRUCTURE...

  • Page 24: Troubleshooting

    If the EF2201 is not removing hybrid echo, it may be due to a mismatch of levels coming into the EF2201. If levels are too far off, it may be difficult for the EF2201 to determine when to adapt its filter. Make sure the levels are in the correct range by watching the front panel LED meters during normal conversation.

  • Page 25: Remote Control Problems

    Try Dialing If the analog telephone works on the line, try using it with the EF2201 to dial manu- Manually ally. Connect the L nect the handset to the P Fix the Remote If you can make calls by dialing with the analog handset, but not with the remote con- Control trol device, that means there is a problem with the remote control.
  • Page 26 ROUBLESHOOTING Fax: (404) 892-2512 Email: vortex@polycom.com Before contacting us, please review the warranty and repair policy on page 34. EF2201 Reference Manual Technical Support: 800.932.2774 ORTEX...

  • Page 27: Technical Specifications

    Control Inputs Status Outputs OMPLIANCE The Vortex EF2201 complies with the ITU G.167 Recommendation for AEC, FCC part 15, and CE requirements. USA and Canada This device complies with part 15 of the FCC Rules. Operation is subject to the...
  • Page 28 In accordance with part 15 of the FCC rules, the user is cautioned that any changes or modifications not expressly approved by Polycom Inc. could void the user’s authority to operate the equipment.
  • Page 29 “NA” shall appear. CE Mark R& TTE This EF2201 has been marked with the CE mark. This mark indicates compliance Directive with EEC Directives 89/336/EEC, 73/23/EEC 1999/5/EC. A full copy of the Decla- ration of Conformity can be obtained from Polycom Ltd, 270 Bath Road, Slough, Berkshire, SL1 4DX, UK.
  • Page 30 Par la présente, Polycom Ltd. déclare que ce EF2201 est conforme aux conditions essentielles et à toute autre modalité pertinente de la Directive 1999/5/CE. Dichiarazione di conformità: Con la presente Polycom Ltd. dichiara che il EF2201 soddisfa i requisiti essenziali e le altre disposizioni pertinenti della direttiva 1999/5/CE. Verklaring van overeenstemming: Hierbij verklaart Polycom Ltd.
  • Page 31 L’Installation doit être exécutée conformément à tous les règlements nationaux appli- cable au filage électrique. Plug acts as Disconnect Device* The socket outlet to which this apparatus is connected must be installed near the equipment and must always be readily accessible © Polycom, Inc. EF2201 Reference Manual ORTEX...

  • Page 32: Ef2201 Block Diagram

    EF2201 B LOCK IAGRAM EF2201 B LOCK IAGRAM Figure 16. Inside the EF2201 EF2201 Reference Manual Technical Support: 800.932.2774 ORTEX...

  • Page 33: Connector Pinouts

    The RS-232 port is wired as DCE. It accepts a male DB-9 connector. Only pins 2, 3, and 5 are required by the EF2201 but pins 7 and 8 are supported. Con- nect pins straight through (do not use null modem).
  • Page 34 Power Supply Input The power supply input accepts a 5-pin DIN male connector. Only use the power supply provided by Polycom. Use of other power supplies will void the warranty. 1 Ground; 2 Ground; 3 +5Vdc @ 3 A; 4 -15VDC @ 0.3 A;...

  • Page 35: Additional Notes

    DDITIONAL OTES Caution! Failure to use all four screws to attach the EF2201 to the rack may result in uneven loading and cause a safety hazard. Caution! Ensure that the power supply is securely located such that it cannot become dislodged and fall. Such a fall could cause personal injury or equipment failure.

  • Page 36: Warranty Information

    Two years. What we will do If your Vortex EF2201 product is defective and returned within two years of the date of purchase, we will repair or, at our option, replace it at no charge to you. If we repair your Vortex product, we may use new or reconditioned replacement parts.

  • Page 37: No User Serviceable Parts

    (404) 892-2512 for advice about whether we will repair your Vortex product and for other repair information, including charges. Polycom, at its sole discretion, may replace rather than repair your Vortex product with a new or reconditioned one of the same or similar design.

  • Page 38: Definition Of Terms

    EF Bus The EF Bus is a digital bus that includes the W, X, Y, and Z audio busses as well as the echo canceller reference and remote control information. It can be used to link multiple Vortex devices.

  • Page 39: Matrix Mixer

    Generally, there are two parts of a noise cancellation algorithm: a method to detect the noise and a method to remove the noise. The Polycom noise cancellation algorithm (patent pending) is capable of removing 10 dB or higher of noise with no degradation at all to the resulting speech signal.

  • Page 40: Index

    Line Echo Cancellation, LEC ...25 Line Echo Canceller, LEC ...37 Logic Input ...5, 32 Logic Output ...5, 32 Mix Minus ...36 Noise Cancellation ...18, 25, 37 NOM ...13, 37 NOM Attenuation ...37 NOM Bus ...37 EF2201 Reference Manual ORTEX Technical Support: 800.932.2774 NDEX...
  • Page 41 Presets ...37 Reference, AEC ...13, 36 Room Gain ...37 RS-232, Serial Remote Control ...4, 5, 12, 13, 16, 18, 25, ... 31 Submatrix ...14 Technical Support ...23 Terminating the EF Bus, Terminators ...9 © Polycom, Inc. EF2201 Reference Manual ORTEX NDEX...
  • Page 43 (800) 932-2774 vortex@polycom.com ® ® Polycom , Vortex , and the Polycom logo are registered trademarks of Polycom, Inc. in the United States and vari- ous countries. Copyright © 2002 Polycom, Inc. All rights reserved. P/N 1725-80101-001 Rev A *1725-80101-001-A*...

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