EF2201 User Manual.book
Contents
1. Vorrex EF2280 Gino Un DD DONS DE aod Room Amplifier Y e B e d ARE o el 8 microphones Wa RES 0404 POLYCOM Video EN iz ol Conferencing Unit Li a ol Figure 4 Typical EF2201 connections Polycom Inc VORTEX EF2201 Reference Manual INSTALLATION The following steps are typically used to set up the EF2201 Connect the EF BUS IN to EF BUS OUT on a Vortex echo canceller This connec tion will provide both audio and remote control information to and from the Vor tex device Connect the LINE RJ11 jack to an analog telephone line Connect the PHONE RJ11 jack to an analog telephone set optional Connect the external power supply to the POWER SUPPLY INPUT jack of the EF2201 Set the country code on the EF2201 By default the phone interface will be dis abled until you select a country code for the telephony interface This can either be done with the front panel LCD menu or the RS 232 interface The country code only needs to be selected the first time or when the country of the installa tion is changed NOTE The country code must be selected in order to begin using the EF2201 It only needs to be selected once at the beginning of use DEVICE IDs ON THE EF Bus When considering which Device IDs can be used for which Vortex device decide how many devices have the ability to transmit on the W X Y and Z busse2. VORTEX 4 HH cm Gao Cu My Vortex EF2201 ed 10 11 12 13 14 15 16 Figure 2 EF2201 Front and Rear Panels 1 LCD DisPLAY Displays menu instructions for configuration and operation of the EF2201 2 DOWN BUTTON Scrolls backward through menu items at a particular level or decreases the value of a parameter 3 UP BUTTON Scrolls forward through menu items at a particular level or increases the value of a parameter ENTER Enters the menu and allows you to select and change parameter values Esc Returns to the next highest level of menus HOME Returns to the top of the menu structure LEVEL INDICATOR Indicates the level of the selected channel or parameter PHONE CONNECT Takes the phone line on or off hook If you have an analog handset connected to the PHONE jack on the back panel pushing this button will disable the PHONE jack while enabling the LINE Jack see Item 17 9 PHONE CONNECT LED Indicates when the phone line is on or off hook 10 INPUT PARALLEL PORT Parallel logic input 11 OUTPUT PARALLEL PORT Parallel logic output 12 EF BUS IN Connects to EF BUS OUT of another Vortex device 13 EF BUS OUT Connects to the EF BUS IN of another Vortex device 14 RS 232 SERIAL PORT Connec
3. 2 peuesey SY iy uooAd zooz 9 1u8udoo HO VLLL Buisse oJd our Buixugelw Figure 16 Inside the EF2201 VORTEX EF2201 Reference Manual 29 Polycom Inc CONNECTOR PINOUTS CONNECTOR PINOUTS EF BUS IN EF BUS OUT Ini 8 1 Cat 5 Plug Front View ee B Jack End RJ 11 Plug End RJ 11 6 Conductor REM OTE CONTROL 7 RS 232 EF Bus The EF Bus uses RJ45 connectors These should be used with category five twisted pair cable The total distance of the EF Bus should be less than 4 5 m The EF Bus must be connected so that the EF Bus In of one box is connected to the EF Bus Out of another Connecting the EF Bus In to another EF Bus In or Out to Out will not work Cat 5 Plug Pinout 1 White Orange 2 Orange 3 White Green 4 Blue 5 White Blue 6 Green 7 White Brown 8 Brown Plug Pinout 3 Ring 4 Tip Note Other pins are not connected The DAA is not affected by Tip and Ring wiring reversal RS 232 Port 9600 19200 38400 8 N 1 The RS 232 port is wired as DCE It accepts a male DB 9 connector Only pins 2
4. 13 VORTEX EF2201 Reference Manual THE EF Bus FROM EF BUS EFBus EFBus EFBus EFBus EFBus EFBus EFBus EFBus PBO PB1 PB2 PB3 PB4 PB5 PB6 PB PBO PB1 PB2 PB3 0 0 0 wB1 WB2 WB3 0 0 0 0 EFBus EFBus EFBus EFBus EFBus EFBus EFBus EFBus wB1 WB2 WB3 WB4 WBS WBE WB Safety Mute SubMix PMO SubMix PM1 PB4 PB5 0 0 0 0 WB4 WBS WBE WB 0 0 0 0 WMO SubMix WMO SubMix WM1 SubMix WM2 EFBus 1 EFBus YB2 EFBus SubMix XMO SubMix XM1 SubMix XM2 xX DAPrPse Od EFBus YB4 YB5 EFBus EFBus BE EFBus YB YB1 YB2 0 YB3 0 YB5 0 0 0 0 SubMix YMO SubMix YM1 SubMix YM2 280 281 282 283 0 0 0 0 EFBus EFBus EFBus EFBus EFBus EFBus EFBus 280 281 282 283 284 285 286 287 ZB4 ZB5 2 6 ZB 0 0 0 0 ZMO SubMix 2 0 SubMix ZM1 SubMix ZM2 Not Muted _ wu nes Figure 6 EF2201 P submatrix and W X Y and Z submatrices PRESETS Note The EF Bus must be connected so that the EF BUS OUT of one Vortex device is connected to the EF Bus In of another Vortex device Connecting EF Bus In to another EF Bus IN or EF Bus Our to EF Bus QUT will not work See Connector Pin outs on page 30 for pinout of Cat 5 cable After configuring your EF2201 save your settings to a User Preset
5. The input menu allows the user to adjust functions related to the input signals to the EF2201 This menu contains LINE ECHO CANCELLATION AUTOMATIC GAIN CON TROL AGC MAXIMUM AGC MINIMUM GAIN ADJUST MUTE NOISE CANCELLA TION NOISE CANCELLATION LEVEL LEC SUPPRESSION and DYNAMICS PROCESSING The menu is organized around the Inputs 1 4 and A D so that you first select an input and then select settings for that input You can also choose to apply the settings to all Inputs Inputs 1 4 or Inputs A D Line Echo Cancellation Enables or disables the echo cancellation on the phone line Automatic Gain Control Input T This enables automatic gain control AGC on Input T The default is On AGC Maximum Input T Sets the maximum gain value that the AGC can apply for Input T The default value is 12 dB AGC Minimum Input T Sets the minimum gain value that the AGC can apply for Input T The default value is 6 dB Phone Input Gain This parameter adjusts the gain level of the phone input Input T This is normally configured during the calibration process The default setting is 0 dB Mute Mutes un mutes phone input The default is not muted Noise Cancellation Input T This allows you to enable or disable noise cancella tion Noise Cancellation Level Input T Selects the level of noise cancellation This ranges from 0 to 15 dB The default is 5 dB LEC Suppression Sets the amount of suppression used the line echo canceller
6. CONNECTOR PINOUTS ADDITIONAL NOTES Caution X 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 Caution When mounting a EF2201 in a rack consideration should be given to airflow and operating ambient temperatures inside the rack To ensure safe operation of the EF2201 ambient operating temperatures inside the rack should not exceed 40 degrees Celsius Allow 2 inches 51mm of open space in front of the EF2201 2 inches 51mm on either side and 4 inches 102 mm behind the unit for proper ventilation Equipment should not be installed in the rack in such a way as to interfere with the ventilation of the EF2201 Caution Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits could have an overcurrent pro tection and supply wiring Appropriate consideration of equipment nameplate ratings should be used when addressing this concern Caution Reliable earthing of rack mounted equipment should be maintained Particular attention should be given to supply connections other than direct connection to the Branch use of power strips VORTEX EF2201 Reference Manual 32 Technical Support 1 800 Polycom WARRANTY INFORMA
7. LEC Dynamics Processing Enables or disables compression on Input T VORTEX EF2201 Reference Manual 18 Technical Support 1 800 Polycom LCD MENU STRUCTURE OUTPUTS The OUTPUT menu contains PHONE OUTPUT GAIN MUTE DELAY ENABLE DELAY and DYNAMICS PROCESSING Phone Output Gain Choose the gain applied to the outgoing phone signal The default setting is 0 dBu Though the EF2201 allows for positive output gain you should always try to adjust input gains to a good level so that the output gain is 0 dB f If you find that you need a positive output gain from the EF2201 first check your input gain to make sure you are getting a good level around 0 dB Keep the output Phone Output gain at around 0 dBu Gain Mute Output Use this to mute or unmute the phone output ute Output Delay Enable Enables delay on Output T to the phone Delay Sets the amount of delay on Output T Delay Enable Dynamics Processing Enables or disables compression on Output T Delay Dynamics Processing Figure 11 EF2201 Outputs submenu MATRIX SETTINGS The MATRIX menu includes gain and mute adjustments for the main matrix Out T In T In PM1 WMO WMI etc and the submatrix P submatrix W X Y Z submatrices Gain M ute Figure 12 EF2201 Matrix submenu Polycom Inc 19 VORTEX EF2201 Reference Manual LCD MENU STRUCTURE PARAMETRIC EQ MENU The input equalizer is comprised of up to 5 bands of f
8. 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 DCD 2 TXD 3 RXD 4 DSR 5 ground 6 DTR 7 CTS 8 RTS 9 No connection Baud rate is selectable at 9600 19200 or 38400 VORTEX EF2201 Reference Manual Technical Support 1 800 Polycom CONNECTOR PINOUTS Input Output Remote Control Port INPUT Logic Input Pins 1 24 are inputs 1 24 respectively 13 1 000000000000 i o00000000000 Pin 25 is ground 25 4 REM OTE CONTROL Logic Output Pins 1 20 are outputs 1 20 respec 0000009000000 tively Pins 21 25 are ground Each ground pin o should be used with only 4 outputs For example OUTPUT outputs 1 4 could be connected to LEDs which are connected to ground pin 1 LEDs can be used without series resistors we have provided series resistors in the circuitry For best results LEDs with Vf 2 0 V and If 20 mA should be used Larger values may be used but may result in dimmer LEDs An LED with Vf less than 1 4 V should not be used without additional series resis tance Power Supply Input 35 215 VDC 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 5Vdce 3 A 4 15VDC 0 3 A 5 15Vdc 1 2 Polycom Inc 31 VORTEX EF2201 Reference Manual
9. NA shall appear Mains powered POT s Voice Telephony without Emergency 000 dialing Warning This equipment will be inoperable when mains power fails Polycom Inc 27 VORTEX EF2201 Reference Manual TECHNICAL SPECIFICATIONS Japan VCCI Class A ITE TOREJ HHLBRES VCCI OBE BSC 77 C RER 2 CBR fem SU XI IBS SBLIBKENSCEPHVET Korea Class A ASAPH Al 5 ZA 1 A 2 59 AG 7171 ES 03941 7 71 e AERA DLE AAAA SSS 9 Boy HEE ASAE BS FSSA sem 712 212 AAA ALS SHE AS 2z 1 Rest of World EMC CLASS A ITE WARNING This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Installation Instructions Installation must be performed in accordance with all relevant national wiring rules L Installation doit tre ex cut e conform ment tous les r glements nationaux appli cable au filage lectrique 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 VORTEX EF2201 Reference Manual 28 Technical Support 1 800 Polycom EF2201 BLOCK DIAGRAM EF2201 BLOCK DIAGRAM euoudempr smers lonuo5 4 5 lt JON oq uoneuuoju
10. PRESETS 16 47 Also set the POWER ON PRESET to the User Preset you have saved to The POWER ON PRESET determines how the unit is configured upon power up If you have multiple EF2201 devices in your system save to a User Preset on each unit and set the POWER ON PRESET accordingly VORTEX EF2201 Reference Manual 14 Technical Support 1 800 Polycom LCD MENU STRUCTURE LCD MENU STRUCTURE LCD Menu Tree The EF2201 LCD menu structure is made up of seven menu trees SYSTEM PHONE CONTROL INPUTS OUTPUTS PARAMETRIC EQ PRESETS and MACROS Each menu tree is organized by levels and branches into multiple subcategories The branches end with an adjustable parameter or value EF2201 System Settings jJ __ System _ Phone Control Input Settings Output Settings Matrix 7 ParameticEQ Presets __ Macros Power On Preset Auto Answer T OutputT gt Main Matrix gt Input Output Restore il pon e o din Auto Hangup Line Echo Phone O utput a Channel Save Call Progress Cancellation Gain Gate in 1 4 Presets 16 47 Error M essages Auto Hangup Automatic Gain ate In 1 Delsie Band Front Panel Lock Loop Drop Control AGC Mute Output Mute Presets 16 47 AGC Maxi i Front Panel Country Select aximum Delay Enable Sax Filter Type Password Device ID Dial Tone Gain AGC Minimum Delay Gain Bandwidth Gain Baud Rate DTMF Gain Phone Input G
11. ACKNOWLEDGEMENT MODE ERROR MESSAGES FRONT PANEL LOCK FRONT PANEL PASSWORD DEVICE ID BAUD RATE FLOW CONTROL METER NON VOLATILE MEMORY LOCK NON VOLATILE MEMORY PASSWORD SCREEN SAVER SOFTWARE VERSION and REBOOT EF2201 configurations Power On Preset Choose the EF2201 Preset for power up Acknowledgement Mode This command controls whether or not status messages are sent Error Messages Turns error messages On or Off Front Panel Lock Locks or unlocks the front panel When the front panel is locked you can see the parameters but you cannot change them The default passcode is aspi case is important Front Panel Passcode Once the device has been unlocked the passcode may be changed At the FRONT PANEL PASSCODE menu press ENTER and then enter a pass code and press ENTER until you reach the end of the screen Device ID Selects the Device ID of the unit Baud Rate Selects baud rate of the RS 232 Flow Control Selects flow control between Hardware None or Auto Meter Selects which signal is displayed on the front panel LED meter Non Volatile Memory Lock Controls the non volatile lock feature When the non volatile memory is locked you can query the settings but will get an error if you try to change them Non Volatile Memory Password This feature sets or queries the non volatile lock password This password is used in conjunction with NON VOLATILE MEMORY LOCK The default password is aspi case is important Screen S
12. echo canceller can cancel per unit time typically expressed in dB sec Better echo cancellers have a higher faster convergence rate This term is typically used to quantify the time it takes to completely remove the echo from a conferencing system Echo occurs due to a complete change of the acoustic environment such as the beginning of a phone call in a conference a change of microphone speaker placement or speaker volume adjustment A mix minus bus allows each device to create a mix of signals without its own The submix W X Y Z or P inputs to the main matrix are mix minuses An echo canceller estimates the echo in an audio signal by using a reference and pre forms processing to eliminate the echo from the signal 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 Polycom Inc 35 VORTEX EF2201 Reference Manual DEFINITION OF TERMS Equalization Line Echo Macros Matrix Mixer Noise Cancellation NOM NOM Attenuation NOM Bus Presets Room Gain Equalization is the process of adjusting frequency characteristics of an audio signal Line echo is caused by reflections of the audio signal from the telephone hybrid The EF2201 is an example of a device that includes a line echo canceller An arbitrary set of commands that can be replayed A matrix mixer a
13. 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 The signals should regularly be hitting the first yellow light and occasionally flicker the second yellow light Adjust the incoming signal levels if necessary Also make sure the Line Echo Cancellation feature is enabled CANT RECEIVE CALLS OR DIAL OUT Test with an Analog Phone If you can t receive calls or dial out it could be because the telephone line is from a digital PBX system or the remote control system is not properly connected Try connecting a regular analog telephone to the EF2201 s line and make a call If the telephone will not work on that line it is probably a digital PBX line from an office system The EF2201 needs a standard analog line You will need to get an ana log phone line installed for the EF2201 VORTEX EF2201 Reference Manual 22 Technical Support 1 800 Polycom TROUBLESHOOTING Try Dialing Manually Fix the Remote Control If the analog telephone works on the line try using it with the EF2201 to dial manu ally Connect the LINE jack of the EF2201 to the telephone jack in the wall and con nect the handset to the PHONE jack Try making a call If you can make calls by dialing with the analog handset but not with the remote con trol device that
14. on EF2201 Figure 5 Terminate the EF Bus link on legacy EF2280 s when connecting an EF2201 to one or more EF2280s that has inline audio connectors FACTORY DEFAULT SETTINGS PRESET 0 The following is a list of the factory default settings of the EF2201 Since the equip ment in your application may have different nominal levels you can start with a FAC TORY PRESET Presets 0 15 change it to match your environment and then save it within the EF2201 as a USER PRESET Presets 16 47 Once you ve saved a USER Polycom Inc 9 VORTEX EF2201 Reference Manual INSTALLATION PRESET set the POWER ON PRESET to that USER PRESET or whichever preset you want to come up after power up The unit will need to be configured for your system PROGRAM PARAMETERS FACTORY DEFAULT PRESET VALUE SYSTEM PARAMETERS Preset 0 Device ID 0 Baud Rate 9600 Flow Control Off PHONE CONTROL Auto Answer On Auto Hangup Call Progress Off Auto Hangup Loop Drop Off Dial Tone Gain 0 dB DTMF Gain 0 dB Ring Tone Enable On PHONE INPUT Automatic Gain Control AGC On AGC Maximum 12 dB AGC Minimum 6 dB AGC Rate 1 dB s Phone Input Gain 0 dB ute Off oise Cancellation On oise Cancellation Level 5 dB sine Echo Cancellation On Dynamics Processing On Filtering Off PHONE OUTPUT Mute Off Phone Output Gain 0 dB Dynamics Processing On Filtering Off
15. telecommunications company The equipment must also be installed using an acceptable method of connection The customer should be aware that compliance with the above conditions may not prevent degradation of ser vice in some situations Repairs to certified equipment should be coordinated by a representative designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment The Ringer Equivalence Number REN assigned to each relevant terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface The termination on an interface may consist of any combina tion of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed 5 The REN of this equipment is either marked on the unit or included in the new style USA FCC registration number In the case that the REN is included in the FCC number the user should use the flowing key to determine the value The FCC number is formatted as US AAAEQZZTXXX is the Ringer Equivalence Number without a decimal point e g REN of 1 0 10 REN of 0 3 03 In the case of a 7 ringer ZZ shall appear In the case of approved equipment without a network interface and equipment not connecting to circuits with analog ringing supplied then
16. troubleshooting guidelines don t resolve the problem you are experiencing with the EF2201 please check our web site http www polycom com for the most current technical support information If you have further questions please contact us at Polycom Inc 4750 Willow Road Pleasanton CA 94588 Phone 1 800 Polycom 765 9266 Online Help www polycom com Choose eSupport Polycom Inc 23 VORTEX EF2201 Reference Manual TROUBLESHOOTING eSupport is a source for product information white papers general questions or you may check the status of an RMA Before contacting us please review the warranty and repair policy on page 33 VORTEX EF2201 Reference Manual 24 Technical Support 1 800 Polycom TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS MECHANICAL SPECIFICATIONS Dimensions Weight Connectors POWER External Power Supply provided Input Voltage Power Consumption PERFORMANCE SPECIFICATIONS Operating Temperature Frequency Response Line Echo Cancellation Convergence Rate Cancellation Span Noise Cancellation Control Inputs Status Outputs 19 483 mm W x 9 6 244 mm L x 1 75 45 mm H full rack unit 4 Ib 1 8 kg dry 5 5 Ib 2 5 kg shipping RS 232 DB9F EF Bus In Out RJ45 Phone In Out RJ11 Control Status DB25F 100 250 VAC 50 60 Hz 15 W typical 0 to 40 degrees Celsius 250 Hz to 3 6 kHz on telephony interface 40 dB total 60 dB 30 dB sec
17. Hz between 20 Hz and 20 000 Hz in 1 Hz steps e Slope between 24 dB oct and 12 dB oct 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 Center frequency on shelving filters is the frequency where it crosses the point half way between 0 dB and the gain of the filter halfway up the slope VoRTEX EF2201 Reference Manual 20 Technical Support 1 800 Polycom LCD MENU STRUCTURE PRESETS Restore Restores the selected preset Save Saves the selected user preset Presets 16 47 Factory presets Preset 0 15 cannot be overwritten C Presets Delete Deletes the selected user preset Presets 16 47 Factory Presets Presets 0 15 cannot be deleted Restore Save Presets 16 47 Delete Presets 16 47 Figure 14 EF2201 Presets submenu MACROS Run Macro 0 255 Allows you to run macros from the front panel menu Run M acro 0 255 Figure 15 EF2201 Macros submenu Polycom Inc 21 VORTEX EF2201 Reference Manual TROUBLESHOOTING TROUBLESHOOTING RESIDUAL ECHO Identifying the Echo Source Removing the Echo If there is residual echo in the system it may not be a problem with the EF2201 There are different types of echoes that come from different directions and the EF2201 is only designed to remove one of them The first step is to make sur
18. Reference AEC 13 35 Room Gain 36 RS 232 Serial Remote Control 4 5 12 13 16 18 25 30 Submatrix 14 Technical Support 23 Terminating the EF Bus Terminators 9 VORTEX EF2201 Reference Manual 38 Technical Support 1 800 Polycom INDEX Polycom Inc 39 VORTEX EF2201 Reference Manual Polycom Inc 4750 Will Road Pleasanton CA 94588 2708 USA www polycom com Polycom Vortex and the Polycom logo are registered trademarks of Polycom Inc in the United States and various countries Copyright 2002 Polycom Inc All rights reserved P N 1725 80101 001 Rev C
19. S POLYCOM Vortex EF2201 Reference Manual VORTEX EF2201 REFERENCE MANUAL Introduction esse tee toe ese pend es a ebur pedes dun dea eleg saca e dos 2 Features and Benefits ss 3 Pre InstallatIQB uiia eno tees tecta tege nir to dire Peace va pute eate 4 EF2201 Front and Rear Panels isset diee tese 5 IistalldDOB ea cst Diode eed fed m ei pte A A 6 Mounting the EE2201 4 ce ee dg eet ere eet oe ede leue Retro 6 Connecting the EF2201 to Other Equipment 7 DevicelDs on the Bus ila eot ede et iie ET 8 Connecting Multiple EF 2201 Devices 8 Factory Default Settings Preset une 9 Check Surrounding Equipment ss 11 Integrating the EF2201 Into Your System 12 Set up the Phone Interface ss 12 Ihe BE BUS ne nn ee tn a 13 PRESSE CE 14 ECD Menu seed a a nee e a 15 System Mei tte 16 PhONACONRTO i 2o E NC LIU AU Dat M 17 EU AM M I ite RO EE 18 EEEE REEE E R EE EE O E E REER RR 19 Matrix SCLIN OS on Ene seo tte Er ed te tea da a CO hs OG 19 Parametric EO Menu rien entente eee deese do ded 20 TEV AN A det eoe nn dant nes eat DER E E HERE RETURNS 21 21 Troubleshooting a tant vila EEEa 22 Residual Echo eti d pe 22 Can t Rece
20. TION WARRANTY INFORMATION What is covered For how long What we will do Limitations What we ask you to do What this warranty does not cover Any defect in materials or workmanship Two years 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 If we choose to replace your Vortex product we may replace it with a new or recondi tioned one of the same or similar design The repair or replacement is warranted for either a 90 days or b the remainder of the original two year warranty period whichever is longer Polycom shall not be responsible for special incidental indirect or consequential damages resulting from any breach of warranty or under any other legal theory including but not limited to loss of profits downtime goodwill damage to or replace ment of equipment and property and any cost of recovering reprogramming or reproducing any program or data stored in or used with Vortex products Some states do not allow limitations on how long an implied warranty lasts or the exclusion of incidental or consequential damages so the above exclusions or limita tions may not apply to you To obtain warranty service for your Vortex product call your local support office and we will issue a Return Material Authoriza
21. VORTEX EF2201 Reference Manual 10 Technical Support 1 800 Polycom INSTALLATION Presets and If you have multiple devices in your system save settings to a user preset Presets 16 8 p Multiple EF2201 47 on each device Saving a preset will only save the preset on that particular unit p Devices Also remember to set the POWER ON PRESET to the User Preset that you have saved your settings to otherwise the device will revert back to Preset 0 factory default if power is lost CHECK SURROUNDING EQUIPMENT Check Levels to If you are connecting the EF2201 to a Vortex device the default level of 0 dB should the Acoustic Echo give sufficient gain Canceller Polycom Inc 11 VORTEX EF2201 Reference Manual INTEGRATING THE EF2201 INTO YOUR SYSTEM INTEGRATING THE EF2201 INTO YOUR SYSTEM 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 For operation using the PC control software Conference Composer please refer to the Conference Composer User Guide Use Conference Composer software to easily configure the EF2201 with a PC or refer to the Applications Guide for different configurations that are already pro grammed into factory presets SET UP THE PHONE INTERFACE By default the phone interface will be disabled unt
22. ain Dynamics Mute Slope Processing i Flow Control Filter Enable Ring Tone Mute Meter Enable Non Volatile Noise Cancellation Memory Lcok Non Volatile Mem Noise Cancellation Password Level Screen Saver LEC Suppression Last Restored Dynamics Preset Processing Software Version Reboot Figure 7 LCD Menu Tree DOWN Ur ENTER ESC HOME Scrolls backward Scrolls forward Enters the menu Returns to thetop Returns to the top through menu through menu and allows you to of the next high of the menu struc level or decreases the value ofa parameter items at particular items at particular level or increases the value of a parameter select and change parameter values est level of menus ture 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 HOME button from anywhere in the menu tree to return to the top of the menu The ENTER button enters the menu and the ESC button returns to the next high est level of menus To scroll back through menu items at a particular level use the DOWN button To scroll forward through menu items at a particular level use the UP button To adjust a parameter first locate the parameter by scrolling to the appropriate menu with combinations of the UP DOWN and ENTER buttons The display will show the parameter field and the parameter value To change the parameter the parameter must
23. aver Enables or disables the screen saver on the LCD panel You can also set the idle time Last Restored Preset Displays the last restored Preset Software Version Queries the software version Reboot EF2201 Causes the EF2201 to restart and boot up VORTEX EF2201 Reference Manual 16 Technical Support 1 800 Polycom LCD MENU STRUCTURE PHONE CONTROL Phone Control Auto Answer Auto Hangup Call Progress Auto Hangup Loop Drop Country Select Dial Tone Gain DTMF Gain Ring Tone Enable Figure 9 EF2201 Phone Control sub menu Auto Answer Enables or disables auto answer Auto Hangup Call Progress Enables or disables auto hangup based on call progress messages Auto Hangup Loop Drop Enables or disables auto hangup cased on loop drop Country Select Selects the country where you are using the unit This must be set before you can use the unit and does not need to be set again unless you use the unit in a different country Dial Tone Gain Adjusts the gain of the dial tone DTMF Gain Adjusts the gain of the DTMF tones Ring Tone Enable Enables or disables ring tones Polycom Inc 17 VORTEX EF2201 Reference Manual LCD MENU STRUCTURE INPUTS Input Settings Line Echo Cancellation Automatic Gain Control AGC AGC Maximum AGC Minimum Phone Input Gain Mute Noise Cancellation Noise Cancellation Level LEC Suppression Dynamics Processing Figure 10 EF2201 Inputs submenu
24. be flashing To make the parameter flash assuming the front panel is not locked press ENTER Once the parameter is flashing use the UP and DOWN buttons to adjust the parameter value The parameter is instantly updated while it is being adjusted Polycom Inc 15 VORTEX EF2201 Reference Manual LCD MENU STRUCTURE SYSTEM MENU Power On Preset Acknowledgeme nt M ode Error M essages Front Panel Lock Front Panel Password Device ID Baud Rate Flow Control M eter Non Volatile Memory Lcok Non Volatile Mem Password Screen Saver Last Restored Preset Software Version Reboot Figure 8 EF2201 System submenu you should hear changes as the parameter is changing RS 232 control strings are also sent via the RS 232 port so your remote control device is instantaneously updated as well Press ENTER to select and store the parameter value or press ESC to cancel the selected value and return to the old value Pressing HOME has the effect of pressing Esc then HOME so the selected value will be cancelled and the menu will return to the top of the menu tree Parameters that toggle or select among a list of options will wrap around when you reach the end but parameters that adjust numeric values will not wrap around once the maximum or minimum value is reached While adjusting a parameter the UP DOWN button must be held down briefly before the repeat rate increases The SYSTEM menu contains POWER ON PRESET
25. e the echo isn t caused by something else Then the EF2201 can be adjusted to remove any residual echo coming from the hybrid If the system has both audio and video conferencing troubleshoot the system without the EF2201 at first This will make sure the 4 wire Ax on both ends are working prop erly If one side hears echo there is a problem with the AEC on the other side Trou bleshoot the AEC according to the instructions for that device Make a call to test the EF2201 s telephone interface If the party on the phone hears echo it is coming from the local or remote end Disconnect one end at a time by briefly unplugging the speaker or microphone and see when the echo goes away Troubleshoot the AEC on the side local or remote that was causing the echo If residual echo is heard on the local end try disconnecting the remote end If the echo is still there it is coming from the EF2201 Troubleshoot the EF2201 as described in the next section If the echo goes away when the remote end is disconnected trouble shoot the AEC on the remote end If residual echo is heard on the remote end disconnect the microphone s in the local room If the echo is still there it is coming from the EF2201 Troubleshoot the EF2201 as described below If the echo goes away when the microphone is discon nected the echo is coming from the local room Troubleshoot the local AEC If the EF2201 is not removing hybrid echo it may be due to a mismatch of
26. eable Parts Voice Business Group for repairs Attempts to repair this product by an unauthorized technician will void your warranty State Law Rig hts This limited warranty gives you specific legal rights and you any have other rights that may vary from state to state VORTEX EF2201 Reference Manual 34 Technical Support 1 800 Polycom DEFINITION OF TERMS DEFINITION OF TERMS Acoustic Echo Acoustic Gain Ambient Level Automatic Gain Control AGC Automatic Microphone Mixer Convergence Rate Crosspoint Mix Minus Bus Echo Canceller EF Bus Acoustic echo occurs in a conferencing or distance learning system when the remote speech played in the loudspeakers is picked up by microphones in the room and is transmitted back to the remote end This transmitted signal is a delayed version of the original which causes the echo Acoustic gain is a term used in conjunction with sound reinforcement It refers to how much louder the audio is with sound reinforcement compared to without sound rein forcement The ambient level also referred to as noise floor is the background noise heard in a room when no one on the near or remote end is talking Automatic gain control increases or decreases the gain on an audio signal to an acceptable value A microphone mixer that turns microphone channels on and off based on the signal level going into the microphone Convergence rate refers to the amount of echo a line or acoustic
27. ere with the connectors on the EF2201 back panel Plugin the power supply Werecommend that you also Ty wrap the power supply to the rack The purpose of securing the power supply to the back panel is so that if the power supply were to drop it would pull where the cord is attached with the cable clamp and not pull the plug out of the EF2201 Caution Do not use any other power supply other than the one provided with this unit VORTEX EF2201 Reference Manual 6 Technical Support 1 800 Polycom INSTALLATION CONNECTING THE EF2201 TO OTHER EQUIPMENT Typical EF2201 Connections The EF2201 will typically be connected to other equipment in a single room setup as shown below in Figure 3 and Figure 4 Y DT Out 1 S 2 Out 3 Out 4 Out 5 E Out 6 Out7 Out 8 Vortex EF2280 Out A nB Out B nc Out C InD Out D EF Bus In EF Bus POLYCOM Video Conferencing Unit Line In Line Out E e Phone Vortex EF2201 EFBusin EFBus Out E Figure 3 Block diagram of typical EF2201 connections a single room using one EF2201 Vortex EF2201 POLYCOM Vortex 2201 EF Bus Connection Vortex EF2280
28. f the LCD menu structure and also gives a system overview of features and options available Troubleshooting helps to debug problems with installation Technical Specifications provides the technical specifications of the EF2201 e EF2201 Block Diagram shows the inside of the EF2201 Connector Pinouts shows pinout diagrams for EF2201 input and output connec tors Warranty Information Definition of Terms explains terms used in this manual as well as terms used in our technology of echo cancellation noise cancellation and audio conferencing About the EF2201 The Vortex EF2201 is the next generation of digital hybrid telephone interfaces It features a complete digital interface to other Vortex products using the digital expan sion bus The EF2201 interfaces telephone audio to the Vortex family of products and allows up to 8 callers to be added to the same conference by using 8 EF2201s 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 The EF2201 has audible ring indications user configurable entry and exit tones and controllable levels of DTMF and dialtone signals The EF2201 settings are config ured using the Conference Composer software and can be stored as user presets within the EF2201 The EF2201 connects direct
29. il you select a country code for the telephony interface This can either be done with the front panel LCD menu or the RS 232 interface The country code only needs to be selected the first time or when the country of the installation is changed Send audio from the phone to other linked devices by using the P bus output in the EF Bus The linked devices can take the phone signal off the bus from the P Bus input Receive audio from other linked devices by using the W X Y and Z submatrix inputs labelled WBO WB1 etc according to device IDs on the EF Bus For Multiple To link multiple devices together use the submatrix on the EF Bus to configure which Devices signals to receive from other devices that have put their signals on the Bus VORTEX EF2201 Reference Manual 12 Technical Support 1 800 Polycom THE EF Bus THE EF Bus The EF Bus is a high speed low delay digital bus that includes the W X Y and Z audio busses the P bus as well as the echo canceller bus reference and remote control information for other EF devices On the EF Bus page in Conference Composer the inputs coming in to each submatrix labelled 1 WB7 correspond with the device ID of the bus that is trans mitting The denotes Bus The submixes themselves denoted as WMI and WM2 are mixes that are input into the main matrix The denotes Mix The EF Bus can link up to 8 devices that can transmit on W X Y and Z o
30. iltering The whole group of fil ters for the channel can also be enabled disabled without losing the settings for each band For each band you first select the type of filter from the following Parametric Peaking High Shelf Low Shelf Lowpass Highpass Linkwitz Riley Low or Link Parametric Peaking Center Frequency in Hz between 20 Hz and 20 000 Hz in 1 Hz steps Channel P e Bandwidth in octaves between 0 05 and 2 octaves in 0 05 octave steps Y e Gain in dB between 20 and 20 in 1 dB steps Bad High Shelf Center Frequency in Hz between 20 Hz and 20 000 Hz in 1 Hz steps Filter Type e Bandwidth in dB octave between 1 and 24 dB octave but is always less Frequency than or equal to 1 2 x Gain Gain in dB between 20 and 20 in 1 dB steps Bandwidth Low Shelf Gain Slope e Center Frequency in Hz between 20 Hz and 20 000 Hz in 1 Hz steps i bi e Bandwidth in dB octave between 1 and 24 dB octave but is always less ilter Enable than or equal to 1 2 x Gain e Gain in dB between 20 and 20 in 1 dB steps Figure 13 EF2201 Lowpass Parametric EQ sub menu t Cutoff Frequency in Hz between 20 Hz and 20 000 Hz in 1 Hz steps Highpass e Cutoff Frequency in Hz between 20 Hz and 20 000 Hz in 1 Hz steps Linkwitz Riley Low Frequency in Hz between 20 Hz and 20 000 Hz in 1 Hz steps e Slope between 24 dB oct and 12 dB oct Linkwitz Riley High Frequency in
31. ive Calls or Dial 22 Remote Control Problems ss 23 Contacting Technical 1 seen 23 TechniGabS pecitiea lon sce o ea eive quif c dius 25 3 1 terre IU eet late b e e eU e Hope eae aioe 25 EF2201 Block eese ee etd tere scent sese Hr 29 Connector ane te a MR ANNE ie 30 Additional NOTES he ts de ERE REIN eta 32 Warranty Informallofi c cuo acd ve ea xut 33 Definition ot Terms optat datae ko nt EAR EEEREN 35 Inr E O 37 Polycom Inc Copyright 2002 1 Technical Support 1 800 Polycom INTRODUCTION INTRODUCTION Welcome Congratulations on your purchase of the Vortex EF2201 How to Use This This is a reference manual for your EF2201 It is structured to provide the information Manual you need quickly and conveniently The following 1s an overview of each section Introduction Pre Installation includes information about the contents of the box tools needed for installation and front and rear panel descriptions Installation covers connections of inputs outputs and calibration of inputs of the EF2201 Integrating the EF2201 Into Your System describes adjustments to take into con sideration when integrating the EF2201 with surrounding equipment in your sys tem LCD Menu Structure describes an overview o
32. lected signal picked up by the microphone is the same as the level of the electrical signal sent from the AEC to the line output to your amplifier the room gain of this microphone channel is said to be 0 dB If the reflected signal picked up by the microphone is higher than the level of the signal sent to the line output to your amplifier that microphone channel has positive room gain The more positive the room gain the harder the AEC must work to determine which signal is an echo and which is a local speech signal VORTEX EF2201 Reference Manual 36 Technical Support 1 800 Polycom INDEX INDEX A Acoustic Echo Cancellation AEC 35 Automatic Gain Control AGC 18 35 Automixer Automatic Microphone Mixer 35 Compliance 25 Conference Composer 4 12 Device ID 8 10 Digital Bus 13 35 EF Bus 4 5 8 9 12 13 14 25 30 35 Equalization 36 Factory Default Settings Preset 0 9 Front Panel Lock 16 Ground Logic Input 31 Ground Logic Output 31 Ground Power Supply 31 Ground RS 232 30 LCD Menu 5 12 15 Line Echo Cancellation LEC 25 Line Echo Canceller LEC 36 Logic Input 5 31 Logic Output 5 31 Mix Minus 35 Noise Cancellation 18 25 36 NOM 13 36 NOM Attenuation 36 NOM Bus 36 Non volatile Memory Lock 16 Polycom Inc 37 VORTEX EF2201 Reference Manual INDEX Outputs 19 P Bus 8 12 13 Parallel Remote Control 5 Phone 5 8 12 13 19 25 36 Power On Preset 11 14 Presets 36
33. lephone company will provide advance notice so you can make the necessary modifications to maintain uninterrupted service REN The REN is used to determine the quantity of devices that may be connected to the telephone line Excessive REN s on the telephone line may result in the devices not ringing in response to an incoming call Typically the sum of REN s should not exceed five 5 0 To be certain of the number of devices that may be connected to a line as determined by the total REN s contact the local telephone company VORTEX EF2201 Reference Manual 26 Technical Support 1 800 Polycom TECHNICAL SPECIFICATIONS Automatic Dialing Telco Connector Canadian Telco Requirements Australia WHEN PROGRAMMING EMERGENCY NUMBERS AND OR MAKING TEST CALLS TO EMERGENCY NUMBERS 1 Remain on the line and briefly explain to the dispatcher the reason for the call 2 Perform such activities in the off peak hours such as early morning or late eve ning A FCC compliant telephone cord and modular plug is provided with this equipment This equipment is designed to be connected to the telephone network or premises wir ing using a compatible modular jack that is Part 68 complaint See the rest of these installation instructions for details This product meets the applicable Industry Canada technical specifications Before installing this equipment users should ensure that it is permissible to be con nected to the facilities of the local
34. llows you to choose which inputs are included in each output Some matrix mixers allow you to assign crosspoint gains to the inputs Noise cancellation is a digital signal process that removes noise from an audio signal corrupted by real world interferences such as HVAC office noise crowd noise or road noise 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 This method does not attenuate speech and removes noise during both speech and idle periods NOM refers to the number of open microphones in a system NOM attenuation is the gain applied to the overall system gain to the microphone sig nals to compensate for how many microphones are open The amount of attenuation is calculated by 10 log A NOM bus carries signal information as well as NOM information 1 the number of open microphones in the system NOM Presets correspond to configuration parameters that have been previously saved to EEPROM The room gain of a conferencing system refers to the relative levels of the signal sent to the line output to your amplifier before any amplification and the level of this sig nal that is reflected at the microphone input after microphone amplification If the electrical level of the ref
35. ly to an analog PSTN telephone line connecting an out side caller to your meeting In addition to providing crystal clear telephone audio to all participants the EF2201 significantly reduces background noise coming in on the telephone line to keep unwanted sounds from interfering with your conference Product Please take a moment to fill out and return your registration card This information Registration will help us to provide you with better customer support and will allow us to notify you with updated product features and software VORTEX EF2201 Reference Manual 2 Technical Support 1 800 Polycom INTRODUCTION FEATURES AND BENEFITS Telephone hybrid with noise cancellation for adding phone calls to conference Fully digital connection to the EF2200 series products with EF Bus does not require an analog input output Country specific telephone configuration settings 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 User set entry and exit tones give you the option to hear a pleasant tone when callers enter or leave the conference Conference up to 8 callers Built in DTMF dialer allows users to dial without the use of a separate telephone Adjustable dial tone and DTMF levels RS 232 EF Bus logic interface and fr
36. means there is a problem with the remote control See the Remote Control Problems section below REMOTE CONTROL PROBLEMS Check Command Syntax Check Device ID Check RS 232 If the remote control device doesn t seem to be affecting the EF2201 there are a few things you can check Try sending commands that have a visible impact like the PHONE command which turns on the front panel PHONE light Also look for mes sages from the EF2201 like acknowledgement or error messages if the remote con trol device can display them Make sure the commands that are being sent to the EF2201 have the correct syntax If only a couple of the commands aren t being processed there may be an error in the syntax of those commands Remember the commands are case sensitive The EF2201 should return ERROR messages if the commands are typed incorrectly as long as error messages are enabled Make sure the Device ID of the EF2201 matches the Device ID of the commands that are being sent If they don t match the EF2201 will ignore all the commands Try sending a command to all devices instead of Device Type and Device ID If this works but sending commands to a specific device doesn t the Device ID doesn t match Make sure the RS 232 cable is connected securely to the EF2201 and the remote con trol device The RS 232 cable should be connected straight through Do not use a null modem CONTACTING TECHNICAL SUPPORT If these
37. ond 32 ms 0 dB to 15 dB software selectable 24 Contact closure 20 status outputs 5V 20 mA each COMPLIANCE The Vortex EF2201 complies with the ITU G 165 Recommendation for LEC and FCC part 15 USA and Canada This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation NOTE This equipment has been tested and found to comply with the limits for a Class A dig ital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in commercial environment This equipment generates uses and can radiate radio fre quency energy and if not installed and used in accordance with the instruction man ual may cause harmful interference to radio communications Operation of this Polycom Inc 25 VORTEX EF2201 Reference Manual TECHNICAL SPECIFICATIONS equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense 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 This Clas
38. ont panel LCD for control Polycom Inc 3 VORTEX EF2201 Reference Manual PRE INSTALLATION PRE INSTALLATION What s Included The Vortex EF2201 product package includes the following items Vortex EF2201 Reference Manual Vortex EF2201 External power supply Cat 5 cable for EF Bus Telephone cable Rack mount screws 4 Cable clamp and screw CD containing other manuals and Conference Composer software Product Registration Card Rackmount Vortex EF2201 pP ms ii vo Cable Clamp and screw External ed CD with control software and manuals POLYCOM Ws User Guide 1 Cat 5 cable for EF Bus Vortex EF2201 User Guide Power Supply 1 Telephone cable Figure I What s Included with your Vortex EF2201 What s Not Included Tools Needed for Installation The following equipment is not included with the EF2201 product package but may be necessary to create a completely functional system Acoustic Echo Canceller Microphones Loudspeakers Audio cables Video conferencing codec or other four wire interface optional RS 232 remote control device optional Screwdriver to mount the EF2201 in your rack VORTEX EF2201 Reference Manual 4 Technical Support 1 800 Polycom PRE INSTALLATION EF2201 FRONT AND REAR PANELS POLYCOM Vortex EF2201 SOR di s EF2201 amp p
39. s A digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe A est conforme a la norme NMB 003 du Can ada US Telco This equipment complies with part 68 of the FCC Rules Please refer to the labeling requirements on equipment for the following information Registration Number e Ringer Equivalence e Grantee s Name Model Number Serial Number and or Date of Manufacture e Country of Origin If requested this information must be provided to the telephone company Notes This registered equipment may not be used with party lines or coin lines If trouble is experienced the customer shall disconnect the registered equipment from the telephone line to determine if the registered equipment is malfunctioning and that if the registered equipment is malfunctioning the use of such equipment shall be discontinued until the problem has been corrected Tf in the unlikely event that this equipment causes harm to the network the tele phone company will notify you in advance that temporary discontinuance of ser vice may be required But if advance notice isn t practical the telephone company will notify you as soon as possible Also you will be advised of your right to file a complaint with the FCC if you believe it necessary The telephone company may make changes to its facilities equipment operations or procedures that could affect the operation of the equipment If this happens the te
40. s 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 Up to 8 devices can transmit on the W X Y and Z busses Similarly up to 8 devices can transmit on the P bus Note that the EF2241 counts as one of both types All devices that can transmit on W X Y and Z must have unique device IDs and all devices that can transmit on P must have unique device IDs EF2201s and EF2241s must have unique device IDs since both can transmit on the P Bus EF2280s and EF2241s must have unique device IDs since both can transmit on the W X Y and Z busses If the device IDs of linked Vortex devices that can transmit on the same busses are the same the front panel LCD screen will display EFBus Error Dev ID Conflict CONNECTING MULTIPLE EF2201 DEVICES Up to 8 EF2201 devices in combination can be linked together at one time See Device IDs on the EF Bus above Each unit in the chain must have a unique Device ID Use the EF Bus to link multiple EF2201s together The following steps should be followed to connect the EF Bus 1 Set a unique Device ID for each EF2201 The Device IDs range from 00 to 07 2 Power off all units 3 Connect the RS 232 remote control device to any EF2201 in the chain 4 Connect the provided Cat 5 cable between the EF BUS OUT of the first de
41. t this to an optional RS 232 remote control device such as a touch panel or personal computer COM port 15 POWER SUPPLY INPUT Connects to the external power supply provided with the EF2201 16 PHONE LINE JACKS Use the PHONE jack for connecting an analog handset to the system Use the LINE jack for connecting to an analog telephone line Polycom Inc 5 VORTEX EF2201 Reference Manual INSTALLATION INSTALLATION North American Requirement This equipment is intended to only be installed by qualified service personnel The equipment shall be connected to a socket outlet that provides a protective earthing connection CAUTION To reduce the risk of fire use only No 26 AWG or larger telecommunica tion line cord MOUNTING THE 2201 Recommendation For Easy Access Instructions for Securing Power Supply to Back of EF2201 The EF2201 can be mounted in a rack enclosure using four large screws 10 32x1 2 included with the unit One EF2201 fits in a single rack space While not required leave a single rack space in between the EF2201 and other units in your rack This gives you easier access to the back panel Locate the cable clamp on the back panel of the EF2201 above the power con nector Remove the screw and thread the power cord through the cable clamp Attach the cable clamp to the back panel of the EF2201 and tighten the screw Align the clamp so that the power cable does not interf
42. tion number RMA Use the original packaging materials to return the product Ship the product to the address supplied to you Repair or replacement of your Vortex product is your exclusive remedy This warranty does not cover defects resulting from accidents damage while in tran sit to our service location alterations unauthorized repair failure to follow instruc tions misuse fire flood lightning acts of God or use in those countries where such use violates Part 779 of the Export Administration Regulations of the United States Department of Commerce If your Vortex product is not covered by our warranty call your local support office 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 simi lar design The repair or replacement is warranted for 90 days The limited warranties and remedies set forth above are exclusive and in lieu of all other warranties whether oral or written express or implied Polycom specifically Polycom Inc 33 VORTEX EF2201 Reference Manual WARRANTY INFORMATION disclaims any and all implied warranties including without limitation the warranties of merchantability and fitness for a particular purpose No User This product contains no user serviceable parts Please contact Polycom Installed Servic
43. utputs such as the EF2280 and up to 8 devices that can transmit on the P output such as the EF2201 Note that the EF2241 counts as one of both types If the device can transmit on a particular bus it cannot bring its own mix back into itself For example an EF2201 with ID 00 cannot add the input PBO into PMO or PMI see example in Fig ure 6 below The W X Y and Z busses include NOM information and can be used for sharing microphone inputs or for sharing mono or stereo program information See Device IDs on the EF Bus on page 8 for more information on how this affects Device IDs The P Bus The P Bus is provided specifically to allow devices to share digital phone audio from the EF2201 The EF2201 and EF2241 can both transmit and receive sig nals on the P bus while the EF2280 can only receive signals from the P bus The W X Y and Z Busses Each EF2241 or EF2280 device in a system can create four output mixes transmit on W X Y and Z and place them on the bus Each EF2201 EF2241 and EF2280 device also can create three input receive mixes each from the W X Y and Z busses of the other devices for a total of 12 mixes The mixes can have crosspoint gains on the signals from the other devices See Figure 6 below All 14 mixes 2 mixes on P 3 mixes each on W X Y and Z become inputs to the main matrix of the EF2201 and can be mixed with other inputs to create outputs to the phone and P bus output Polycom Inc
44. vice VORTEX EF2201 Reference Manual 8 Technical Support 1 800 Polycom INSTALLATION and the EF Bus IN of the second device Note The EF Bus must be connected so that the EF Bus In of one box is connected to the EF Bus Out of another Connecting the EF Bus In to another EF Bus In or Out to Out will not work 5 Connect another Cat 5 cable between the EF BUS OUT of the second device and the EF BUS IN of the third device and so on 6 Poweron all units at the same time Terminating the The EF2201 is self terminating so if you are connecting multiple EF2201s or con EF2201 necting an EF2201 to an EF2241 the EF Bus does NOT need to be terminated A terminator is not required for the EF2201 or for the versions of the EF2280 that has the input and output connectors stacked on top of each other as the terminator is built in However if you are linking the EF2201 to legacy EF2280s SKU 2200 82280 xyz terminate the EF Bus link on the EF2280 Vortex EF2280 oad Vortex EF2280 urs 5 6 7 EJA 8 C D 1 2 3 4 5 6 7 8 A B C D SCONCE NCIC CITC ICCC Vortex EF2201 si POLYCOM V Vortex EF2201 5 LI o n ses No terminator is needed
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