Polycom EF200 User Manual

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CHOFREE

EF200

™

HONE

SER

ANUAL

Copyright © 1999 ASPI Digital. All rights reserved. Printed in the United States of America. Because of technical progress, specifications are subject to change without notice. EchoFree is a trademark and ASPI is a registered trademark of ASPI Digital.

ASPI Digital - The Sound of DSP 1720 Peachtree Street NW, Suite 220 Atlanta, GA 30309-2439 (404) 892-3200 www.echofree.com

Technical Support: (404) 892-3200 help@aspi.com

EF200UM-0100-99

EF200 U

SER MANUAL

Introduction.... ........ .............. .................... .............. ............. .............. ...........2

Product Features.......................... ............................................ ........ ........... ........... 3

Insta l lation.................. .............. .............. .................... ............. .............. .......4

Preparing for Installation....................................................................................... 4

EF200 Front and Rear Panels................................................................................ 5

Setting the DIP Switches......................................................................................... 7

Connecting the EF 200 to Other Equipment........ ............................... .......... ..........9

Configuring the Non-Volatile Memory................................................................... 10

Calibrating the EF200 Audio Signal Levels........................................................... 12

Connecting Multiple EF200s................................... .......... .................... ................. 13

Mounting the EF200..................... ............................................ .............................. 14

Using the Logic In/Out Port ................................................................................... 15

Operating the EF200 ...................................................................................17

Using the EF200 Without RS-232 Control........................................... ..................17

Using the EF200 with RS-232 Control................................................................... 17

Troubleshooting...........................................................................................19

Residual Echo......................................................................................................... 19

Can’t Receive Calls or Dial Out............................................................................. 19

Can’t Get Caller ID Information............................................................................ 20

Remote Control Problems....................................................................................... 20

Contacting Technical Support ................................................................................ 21

Technical Specifications ..............................................................................22

Compliance............................................................................................................. 22

Warran ty Informa ti o n ..... .............. ................................. .......................... ..24

EF200 Command Set Reference.................................................................26

Command Syntax........................ .................... ..................... .......... .................... ..... 26

EF200 Block Diagram ................................................ .................................69

Connector Pinouts........................................................................................70

NTRODUCTION

EF200 U

SER MANUAL

Congratulations!

About This Manual

Product Description

Congratulations on your purchase of the EchoFree™ EF200 Phone Add. By choosing ASPI Digital’s EchoFree products, you are investing in cutting edge DSP technology that will help provide the best possibl e audio quality for your syste m.

This manual expla in s how to insta ll, co nfigure, and cal ibrate the EF200 i n any syste m that needs a two-wire to four-wi r e interface. It also provides in formation about operating and troubleshooting the EF200.

The EchoFree™ EF200 Phone Add provides a full duplex interface between a fourwire audio syste m and a two-wire telephone line. It al lows a telephone caller to be brought in to any four-wire audio system, such as a distance learning or videoconferencing system. The EF200 is similar to a digital hybrid, but with many more fea tures and capabilities.

The primary function of the EF200 is the line echo canceller (LEC), which digitally eliminates reflections from the telephone hybrid. The LEC algorithm features extremel y fas t adaptation and exc ellent full duplex operation. This allows n atural communication wit hout half- duplex be havior or resi dual echo. The LEC algorit hm is G.165 and G.168 compl iant, which ensure s relia ble, pro ven performa nce. Be cause of its rapid adapta tion, the EF200 requires no training noise. This means that callers don’t get blasted by white noise at the beginning of the connection.

Unlike other phone adds , the EF200 also includes an advanced noise suppress ion algorithm, which improves the signal to noise ratio of incoming tele phone signals by up to 10 dB, without adding distortion or “musical noise” to the speech signal. This greatly improves overall speech quality for all par ticipants when callers are in a noisy environment or are us ing a noisy connecti on such as a cellular phone .

Automatic gain c ontrol ensures consistent audio leve ls , compensating for diffe rences between different lines and handsets . This means users don’t have to change volum e levels when they s w itch from local to long distance calls. Automatic gain control, line echo cancellation, and noise suppression all work together to ensure consist ently high audio quality every time you make a call.

The EF200’s telep hony features enhance its usefulness in integra ted systems. The DTMF dialing and Cal l P r ogress capabilities help make dialing intuitive, through a remote control device. The ring and entry tone generation capability allows users to hear when someone is “ringing” the EF200, even if an analog handset is not connected to the system. The DTMF detection feature allows integrators to add touc h tone remo te control capability to th eir system s.

These features make the EF200 the most advanced device of its kind. Cutting edge DSP technology gives it the best sound quality available. The wi de range of features and controllability make the EF200 extremely flexible, while providing a straightforward user interface for simple installations.

Warranty Registration

Please take a moment to fill out and return your warranty registra tion card. This information will help us to provide you with bette r cus tom er support.

NTRODUCTION

RODUCT FEATURES

• Easily connects to an Acoustic Echo Canceller (AEC) (such as the ASPI Digital EF400) or other four-wire system to add phone calls to co nferences.

• ASPI’s proprietary noise reduction algorithm reduce s static and hiss, to make conference more intelligible and comfortable.

• Built-in DTMF dialer and detector.

• Built-in Caller ID feature allows conference moderator to see who is calling in.

• User-set “entry” and “exit” tones give you the option to hear a pleasant tone when callers enter or leave t h e conference.

• Connection is quiet, non distrac ting.

• Automatic gain control on both the receive a nd transmit audio paths.

• Complete RS-232 control for operation through your room controller, including dialing out to a remote office.

• “Privacy” mode for private conversations with the people in the room, the party on the telephone, or the remote 4-wire party.

• Up to 32 EF200s can be linked together to form a simple conference bridge.

• Diagnostic information is available to syst em integrators and other personnel vi a the EF200’s RS-232 port, permitting remote trouble-shooting if necessary.

• LED bargraphs on the front panel, which are useful for visual indication of audio levels and proper s ys tem operation.

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NSTALLATION

The installation process for the EF200 consists of the following steps:

1. Prepare for installation (below).

2. Configure the DIP switches on the rear panel (page 7).

3. Connect the EF200 to other equipment (page 9).

4. Configure the EF200’s non-volatile memory (if using RS-232) (page 10).

5. Calibrate the EF200 to other equipment in the system (page 12).

6. Mount the EF200 in a rack or on a tabletop (page 14).

REPARING FOR INSTALLATIO N

Reading the entire manual (or at least the in st allation section) before beginning the installation process will help you be more prepared for installation. Also, please make sure you have t he correct equipment (outlined below) before you begin installation.

EF200 U

SER MANUAL

What’s Included

What’s Not Included

The EF200 product packa ge includes the following items:

• EF200 User Manual (this manual)

• EF200 Phone Add

• External Power Supply

• Warranty Registration Card

The followin g equipm ent i s not inc luded wi th t he EF200 produ ct pac kage, but m ay be necessary to create a completely functional system:

• Microphone(s)

• Loudspeaker(s)

• Audio amplifie r (or am plified loudspea ker)

• EchoFree EF400 Acoustic Echo Canceller

• Audio cables

• Videoconferencing CODEC or other four-wire interface (optional)

• Tape recorder or VCR (optional)

• RS200 Rack Mount sh elf (included with purchase of EF200 and EF400 toge ther)

• RS-232 remote control device (optional)

NSTALLATION

EF200 F

POWER

)

TO ET

ESERVED

RONT AND REAR PANELS

TO PHONE FROM PHONE

LEVEL LEVEL

PRIVACY ON

21 3 4 5 6 7 8 9 1110

13 15 17

)

TO ET

ESERVED

AGC

PROM

UPPRESSION

ID 4

VERRIDE

OISE

EVICE

ID 3

EVICE

ID 2

EVICE

ID 1

EVICE

ID 0

EVICE

REMOTE CONTROLREMOTE CONTROL

RS-232

LOGIC IN/OUT

ASPI BUS

OUT

TO PHONE

TO LINE

PRIVACY REMOTE PHONE

REMOTE CONNECT

PHONE CONNECT

EF400

INTERFACE

FROM

AECTOAEC

FROM

REMOTETOREMOTE

T H E

S O U N D O F D S

EchoFree

EF200

5, 15 VDC 5, 15 VDC

POWER

14 16 18 19 20 21 22 23 24

Figure 1. EF200 Front and Rear Panels

OWER INDICATOR

1. P

ROM REMOTE GAIN TRIMPOT

2. F the F

O PHONE LEVEL INDICATOR

3. T line.

O REMOTE GAIN TRIMPOT

4. T

O REMOTE

ROM PHONE LEVEL INDICATOR

5. F telephone line.

RIVACY ON INDICATOR

6. P

EMOTE CONNECT INDICATOR

7. R nected.

HONE CONNECT INDICATOR

8. P is connected.

RIVACY BUTTON

9. P

EMOTE BUTTON

10. R

HONE BUTTON

11. P

12. DIP S

13. RS-232 R control devic e, such as a touch panel or personal computer COM port.

OGIC IN/OUT PORT

14. L

. When the LED is green, power is on.

ROM REMOTE

channel.

channe l.

. Push this button to turn pri vac y mod e on or off.

. Push this button to connect or disconnect remo te audio.

. Push this button to pic k up o r h ang up the telephone line.

WITCHES

EMOTE CONTROL PORT

. Connect this to logic switches for optional remote control.

. This adjusts the gain on the signal coming in on

. Displays the signal level going to the telephone

. This adjusts the gain on the s ignal going out on the

. Displ a y s the sig na l level co m i ng in from th e

. This LED is blue when privacy mode is on.

. This LED is green when the remote audio is con-

. This LED is green when the EF200 2-wire audio

. Connect this to an optional RS-232 remote

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EF200 U

SER MANUAL

15. ASPI BUS IN. Connects to the ASPI BUS OUT of another ASPI Digital device or an ASPI Bus terminator, if the ASPI Bus is in use.

16. ASPI B

US OUT

. Connects to the ASPI BUS IN of another ASPI Digital device or

an ASPI Bus terminator, if the ASPI Bus is in use.

O PHONE

17. T

O LINE

18. T

19. EF400 I

. Connects to an analog telephone handset for manual dialing.

. Connects to the telephone line from th e wall socket.

NTERFACE

. Connects to an EF400 for remote control of the EF400 (not

currently implemented).

ROM

20. F

21. T

22. F

AEC. Connects to the remote output of the AEC.

AEC. Connects to the remote input of the AEC.

ROM REMOTE

. Connects to the audi o output of a CODEC or other 4-wire

device.

O REMOTE

23. T

OWER SUPPLY INPUT

24. P

. Connects to the audio input of a CODEC or other 4-wire device.

. Connects to the external power supply provided with the

EF200.

NSTALLATION

ETTING THE

DIP S

Note

Switches 1 & 2: Reserved

Switch 3: AGC Enable

Switch 4: Noise Suppression Enable

WITCHES

Locate the 10 position DIP switch on the left side of the EF200 rear panel. For the purpose of this dis cus sion, the switches are num bered one through ten, from left to right. The follo wing ins tructions expla in how to set each switch.

Changing the DIP switches will have no effec t until the EF200 is reset. Each time you change the set ting of the DIP switches, you must turn the EF200 off and back on for the changes to take effect.

Switches 1 and 2 are reserved, and should always be set to the off position.

When this switch is on, automat ic gain control is enabled on the telephone input signal when the EF200 is powered up. After the EF200 is powered up, the automatic gain control s tatus may change if commands are sent to turn it off. Also, this switc h may be disabled, dep ending on the settings of switch 5 (see below). The default set ting fo r thi s sw itch is of f.

This switch con trols whether noise suppression is applied to the telephone input signal when the EF200 is powered up. After the EF200 is powered up, the noise su ppression statu s may cha nge if commands ar e sent to tu rn it on or off. This swit ch may be disabled, dependi ng on t he setti ngs of s wit ch 5 (see be low). The de fault s etti ng for this switch is off.

Switch 5: Override EPROM

Switches 6-10: Device ID

When this switch is off, the non-volatile memory settings for automatic gain control and noise suppression take precedence over the DIP switch settings. When it is on, the DIP switch settings take prece denc e over the software settings. In other words, if the Override EPROM switc h is off, the settings of switc hes 3 and 4 have no effect. See the section about non-volatile memory configuration for more information about internal aut omatic ga in contro l and noise suppre ssion s etti ngs. The default sett ing for this switch is off.

These switches set the Device ID number for the EF200. The ID can be any number from 0 to 31. It is a five bit binary number , with the least significant bit on switch 10. Table 1 lists the DIP switch positions neces sary to set each Device I D number from 0 to 31.

The Device ID is the same ID that is used with the EF200 Command Set. The EF200 will respond onl y to comma nds that are sent with the same Devic e ID as the one set on its switches. If you set the Device ID to one that doesn’t agree with your remote control commands, the remote control will no longer affec t that particular EF200.

If you are not us ing a remote cont rol de vice ( via RS-232 or the ASPI B us), t he Devic e ID settings do no t matter. The default Devi ce ID is 0.

ASPI Digital -

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EF200 U

Table 1: DIP Switch Posit ions for EF200 Device IDs (Blank spaces mean switch is off)

SER MANUAL

Device ID Switch 6

(Device ID 4) 0 (default) 1 ON 2ON 3ONON 4ON 5ONON 6ONON 7 ONONON 8ON 9ON ON 10 ON ON 11 ON ON ON 12 ON ON 13 ON ON ON 14 ON ON ON 15 ON ON ON ON 16 ON 17 ON ON 18 ON ON 19 ON ON ON 20 ON ON 21 ON ON ON 22 ON ON ON 23 ON ON ON ON 24 ON ON 25 ON ON ON 26 ON ON ON 27 ON ON ON ON 28 ON ON ON 29 ON ON ON ON 30 ON ON ON ON 31 ON ON ON ON ON

Switch 7 (Device ID 3)

Switch 8 (Device ID 2)

Switch 9 (Device ID 1)

Switch 10 (Device ID 0)

NSTALLATION

ONNECTING THE

Telephone and Audio Connections

)

VERRIDE

UPPRESSION

ID 4

ID 3

ID 2

ID 1

PROM

EVICE

ID 0

EVICE

OISE

ESERVED

AGC

EF200 TO O

THER EQUIPMENT

The connections des cribed below are also shown in Figure 2.

The EF200 will typically be connected to other equipment as shown below.

microphone

POWER LOW HIGH VOLUMEMIC

POWERED SPEAKER

REMOTE CONTROL

RS-232

LOGIC IN/OUT

ASPI BUS

OUT

TO PHONE

TO LINE

6 9 #

EF400

INTERFACE

MIC I

NPUTSPEAKER OUTPUT

1(875,.

OOM

FROM

AECTOAEC

NPUT

UTPUT

EMOTE

FROM

REMOTETOREMOTE

LAYRECORD

APE

UTE

OOM

NPUT

+5,+/-15

VDC

5, 15 VDC

ON/O

Figure 2. Typical EF200 Connections

• Connect the T

• Connect the EF200’s T

• Connect the T

• Connect the F

• Connect the T

• Connect the F

• If RS-232 remote co ntrol is desired, con nect the RS-232 R

• Connect the external power supply to the P

ASPI Digital -

The Sound of DSP

PSTN

O PHONE

CODEC/hybrid

jack of the E F 200 to an analog telephone hands et using a

TX RX

standard telephone cable.

O LINE

jack to the telephone line in your wall, us ing a

standard (RJ11) modular telephone cable.

AEC jack to the input of the local room audio system. This may

be the input to an AEC, such as the R

ROM

AEC jack to the outpu t of the local room audio system. This

EMOTE INPUT

may be the output of an AEC, like the EF400’s R

O REMOTE

jack of the EF200 to the input of a vi deo CODEC or

of the EF400.

EMOTE OUTPUT

other four-wire transmission interface.

ROM REMOTE

jack of the EF 200 to th e ou tput of a vi deo CODEC or

other four-wire transmission interface.

EMOTE CONTROL

port of the EF200 to a remote control device, such as an RS-232 inte rface to a touch panel or a COM port on a personal computer.

OWER SUPPLY INPUT

jack of the

EF200.

EF200 U

SER MANUAL

Note

Caution!

ONFIGURING THE NON-VOLATILE MEMORY

Note

In order to add a phone call to a c onnection, either (or both) the AEC or R nectors of the EF200 must be connected to other equipment.

To dial a number, the EF200 needs either the RS-232 port or the analog telephone handset to be connected. Only one of these is nec es sary to make calls. Calls can be received using only the front panel buttons. The RS-232 port may be needed to configure power-on defaults in the non-volatile memory during the installation process.

The TO L connectors will still fit snugly.

Do not connect the telephone handset or telephone line to the ASPI Bus.

The EF200 has a non-volatile memory which can store use r cus tom izeable default settings for the EF200’s features. When the EF200 i s power ed on, it will read the non-volatile memory and initialize to the se settings. Once the unit is running, the settings may be changed by commands or logic port switches. These changes won’t affect the non-volatile memory unless they are saved using the SAVENV command.

The EF200 must be turned on and connected to the RS-232 remote control device in order to configure the non-volatile memory.

If the O noise suppression settings in the non -volatile memory will have no ef fect. In that case, the EF200 will in itialize to the automatic gain control and noise suppression settings on the DIP swit che s.

INE

and TO P

VERRIDE EPROM

HONE

EMOTE

con-

jacks are wider than RJ11 telephone jacks, but the RJ11

switch is turned on, changing the automatic gain cont rol and

NSTALLATION

Making Changes

Set each of the parameters to the desired value s by sending RS-232 commands to the unit. Table 2 list s the parameters that are stored in the non-volatil e memo ry, and the RS-232 commands that configure them.

Table 2: Non-volatile Memory Parameters

Command EF200 Initialization Parameter Default

AA Auto answer ena ble/disabl e 0 (off) ACKMOD Acknowledgment mode enable/disable 1 (on) AGC Automatic gain control enable/disable 1 (on) AH Auto hangup mode enable/disable 0 (off) CALLP Call progress enable/disable 0 (off) CID Call er ID en able/d i sable 0 (off) DTMF DTMF decoding enable/disable 0 (off) DTMFC Enable/disable DTMF clamping 0 (off) ERROR Error reporting enable/disable 1 (on) GAINA From phone gain 3 (dB) GAINP To phone gain 0 (dB) LEC Enable/disable line echo canceller 1 (on) LOCKFP Lock/unlock front panel buttons 0 (off) NS Noise suppression enable/disable 1 (on) NSL Noise suppression level 10 (dB) RING Enable/d isable ring messages 0 (off) TONEE Enable/dis able entry and exit tones 1 (on) TONER Enable/disable ring tones 1 (on)

Saving Changes

ASPI Digital -

The Sound of DSP

Note

Once the desired parameters have been set on the EF200, s ave them to the non-volatile me mory by s en d ing the SAVENV command. The EF200 will be initialized with these settings every time the uni t is powered on. You can save to the non-volatile memory up to 10,000 times.

Saving th e parameters takes a few seconds, and should not be done during a conversation. Saving parame ters duri ng a conve rsation may ca use gaps in the audio, while the EF200 writes to the non-volatile memory.

EF200 U

SER MANUAL

ALIBRATING THE

Calibrating the AEC

Warning!

Calibrating the

ROM REMOTE

Signal

EF200 A

The EF200 is designed to interface with a wide range of signal l evels, so that it ca n be compatible with most equipment. The expected levels for input and output should be set on the EF200 to matc h the levels of the equipm ent to which it is connected. The following procedure should be followed to match these levels.

If you are connecting an ASPI Digital EF400 Acoustic Echo Canceller to the AEC jacks of the EF200, the calibration proce ss is quite easy. Open the EF400, and turn the remote output pot ( R25) fully counter-clockwise to -20 dBu. Turn the remote input pot (R24) fully clockwise to -20 dBu. The EF200 is desi gned to work with the EF400 when it is set to these levels.

If other equip me nt is connected to the F capable of interfacing with -20 dBu signals.

The pots on the EF400 are sin gle turn pots only. Do not try to turn them to o f ar.

The F locate d just to the left of the T is from -20 dBu (nominal) to +4 dBu (nominal). To calibrate th is input, you need to have someone on the remote end talk so that you can verify their speech level on the

O PHONE LEVEL INDICATOR

1. Turn on the EF200, as well as the ro om audio sys tem (inc ludi ng the AEC) so th at

2. Have the person on t he remote end sp eak in a nor mal voice whi le the re is no loca l

3. Adjust the F

UDIO SIGNAL LEVELS

ROM

AEC and TO AEC jacks, it shoul d be

ROM REMOTE

you can he ar the speech o n the remote end.

audio input through the AEC.

remote end frequently illuminate the first ye llow LED on the T

NDICATOR

I pot clockwise will increase the level, and turning it counterclockwise will decrease the level. This is a five-turn trimpot.

signal level is adjusted using the F

O PHONE LEVEL INDICATOR

ROM REMOTE GAIN TRIMPOT

, and occasiona lly flicker the second yellow LED. Turning the tr im-

until normal speech levels from the

ROM REMOTE GAIN TRIMPOT

. The range of adjustment

O PHONE LEVEL

Calibrating the TO

EMOTE

Signal

Note

Verifying Calibration

The TO R

O REMOTE

T eral this wou ld be abou t the same as th e nomin al input lev el. The ran ge of a djust ment is from -20 dBu (nomina l) to +4 dBu (nomi nal). Adjust t his t rimpot unti l the C ODEC or other 4-wire equipment is receiving the co rrec t level. This is also a five-turn trimpot.

The F the leve l going to the T

EMOTE GAIN TRIMPOT

Give the EF200 a test run, us ing both the AEC and remote connecti ons, if possible. During normal conversation, the T

EVEL INDICATOR

L occasionall y flicker the second. Level s that are much too high or too low may pre-

EMOTE GAIN TRIMPOT

signal is appropria te for the equipment to which it is c onnected. In gen-

ROM PHONE LEVEL INDICATOR

O REMOTE

, the level shown on the meter will not change.

should show levels that regularly hit the first yellow LED, and

should be calibrated so that the outpu t level of the

shows the level received from the telephone, not

jack. When you change the gain on the TO

O PHONE LEVEL INDICATOR

and F

ROM PHONE

NSTALLATION

vent the EF200 or othe r equipment from performing as desi gned, and audio quality may suffer.

When connected to an EF400, the EF200’s T

O PHONE LEVEL INDICATOR

should show the same level as the EF400’s remote level indic ator: correct setting of this level is vi ta l to the corre c t o perati on of th e EF400 .

ONNECTING MULTIPLE

EF200

Multiple EF200s can be easily connect ed together to allow multiple callers to be brought into the system. When the audio signa ls are connected acc ording to the following directions, the EF200 takes care of the necessary mixing functionality. The ASPI Bus allows mult iple devices to be controlled by a single RS-232 connection.

microphone

POWER LOW HIGHVOLUME MIC

POWERED SPEAKER

NPUT

MIC I

NPUTSPEAKER OUTPUT

1(875,.

OOM

VERRIDE

PROM

REMOTE CONTROL

ID 4

ID 3

EVICE

RS-232

ID 2

ID 1

ID 0

EVICE

LOGIC IN/OUT

)

UPPRESSION

OISE

ESERVED

AGC

ASPI BUS

OUT

TO PHONE

TO LINE

EF400

INTERFACE

PSTN

VERRIDE

PROM

REMOTE CONTROL

ID 4

ID 3

EVICE

RS-232

ID 2

ID 1

ID 0

EVICE

LOGIC IN/OUT

)

UPPRESSION

OISE

ESERVED

AGC

ASPI BUS

OUT

TO PHONE

TO LINE

EF400

INTERFACE

FROM

AECTOAEC

FROM

AECTOAEC

UTPUT

EMOTETAPE

FROM

REMOTETOREMOTE

FROM

REMOTETOREMOTE

LAYRECORD

+5,+/-15

ON/O

VDC

UTE

OOM

NPUT

5, 15 VDC

Connecting the AEC and CODEC

ASPI Digital -

The Sound of DSP

PSTN

ASPI BUS

OUT

TO PHONE

TO LINE

PSTN

EF400

INTERFACE

FROM

AECTOAEC

FROM

REMOTETOREMOTE

CODEC/hybrid

5, 15 VDC

TX RX

VERRIDE

PROM

REMOTE CONTROL

ID 4

ID 3

EVICE

RS-232

ID 2

ID 1

ID 0

EVICE

LOGIC IN/OUT

)

UPPRESSION

OISE

ESERVED

AGC

Figure 3. Connec ting multiple EF200s.

The AEC should be connected to the first EF200 according to the guidelines above. The CODEC should be connected to the last E F200. The connections a r e the same a s for a single EF200.

EF200 U

SER MANUAL

Connecting the Audio Between EF200s

Connecting the ASPI Bus

Connect the TO R EF200.

Connect the F EF200.

Connect the R in the same way. Repeat this process until you ge t to the last EF200.

Calibrate each EF200 by turning the F and the T so you will have to tur n them a few times. The trimpots on the last EF200 (the one connected to t he C ODEC) sho uld be c alibra ted a ccordin g to the dire ctio ns for a singl e EF200.

The ASPI Bus can co nnect multiple ASPI Digital product s, such as the EF200, to the same RS-232 remote cont rol device. This means only one RS-232 connection is needed to control all devices on the ASP I Bus. Each device on the ASPI Bus should have a different Device ID or Type ID, so that each de vice can be addressed and controlled individually. These step s should be followed to connect the ASPI Bus:

1. Connect the RS-232 remot e cont rol d evi ce to the fir st ASPI Digi ta l pr oduct i n th e

2. Connect an ASPI Bus terminator to the ASPI B

3. Connect an ASPI Bus cable between the ASPI B

4. Connect the ASPI B

5. Connect an ASPI Bus terminator to the ASPI B

O REMOTE GAIN TRIMPOT

chain.

the ASPI B

device, and so on.

chain.

EMOTE

jack of the first EF200 to the F

ROM REMOTE

EMOTE

US IN

jack of the first EF200 to t he TO AEC jack of the second

jacks of the secon d EF200 to the AEC jacks of the third EF200

ROM REMOTE GAIN TRIMPOT

fully counte rclockwise. These are five-turn pots,

of the second device.

US OUT

of the second device to the ASPI BUS IN of the thi r d

ROM

AEC jack of the second

US IN

of the first device.

US OUT

of the first device, and

US OUT

of the last device in the

fully clockwise,

Caution!

Note

OUNTING THE

EF200

Tabletop Installation

Rackmoun t Installation

Don’t connect the phone to the ASPI Bus.

Front panel but tons and L ASPI Bus. Only the local device is affected by its front panel interface.

The EF200 can be mounted i n a rack enc losu re, us ing the RS 200 Rack Shelf avail abl e from ASPI Digital. This shelf allows you to mount one or two EchoFree half-rack devices (such as the EF200 and EF400) in a single rack space. Alternatively, the EF200 can be instal led on a tabletop.

The EF200 is equipped with four rubber feet that allow installation on a flat surface such as a tabletop.

1. Remove the adhesive backing on the rubber feet.

2. Install the r ubber feet in the circular cutouts on the EF200 baseplate.

The RS200 Rack Shelf, designed to rack mount ASPI Digital products, is sold separately from the EF200.

1. Place the EF200 on the ASPI Digital RS200 Rack Shelf.

OGIC IN/OUT

controls do not affect other devices on the

NSTALLATION

2. Secure the EF200 to the RS 200 shelf using four of the small scr ews (4-40 x 1/2”)

provided with the RS200. If one EF200 is to be mounted on the shelf, place it in the center. If two units are to be mounted, mount them side by side .

3. If only one EF200 is moun ted, attach the two small faceplates supp lied with the

RS200 to each side of the EF200. Use four more of the small screws to secure the face plates.

4. Secure the RS200 shelf to the rac k using all four large screws (10-32 x 1/2”) sup-

plied with the RS200.

5. The EF200 power supply block should be placed securely in the base of the rack

unit. To eliminate any risk of the power cable being pulle d out of the EF200 rea r panel connector, use the plastic Ty-Wraps prov ided with the RS200 to provide strain relief by securing the power cable to the rack upright at the rear of the EF200.

Caution!

SING THE LOGIC IN/OUT PORT

Failure to use all four screws to attach the RS200 s helf to the rack may result in uneven lo ading and cause a safety hazard .

Ensure that the power supply is securel y loc ated suc h that it cannot be come dis lodged and fall. Such a fall could cause pers onal injury or equipment failure.

When mounting an EF200 in a rack, consideration should be given to airflow and operating ambient temperatures inside the rack. To ensure safe operation of the EF200, ambient operating temperatures inside the rack should not exceed 50 degrees Celsius. Allow 2 inc hes of open space in front of the EF200, and f our inches behind the unit for prop er ve ntila tion. Equipm ent should not be inst alle d in t he rack in s uch a way as to interfere with the ventilation of the EF200.

Consideration should be given to the connection of the equipme nt to the supply circuit and the effect that overloading of circuits could have on overcurrent protection and supply wiring . Appropriat e conside rat ion of equip ment na meplate ratings should be used when addressing this concern.

Reliable earthing of rack-mounted equipment should be mainta ined. Particular attention should be given to supply connections other than direct connection to the Branch (use of power strips).

ASPI Digital -

The L using contact closur es (switc hes) . It als o has sev eral out put pins which can be used to drive LED status indicators. The switches should be closed to enable a feature, and opened to d isable it. When an LED is turned on, it mea n s the featu re is enabled . A

The Sound of DSP

OGIC IN/OUT PORT

allows remote control of many of the EF200’s fea tures

EF200 U

SER MANUAL

list of the pins on the L

OGIC IN/OUT PORT

and the features they control is shown

below. The ground pin (15) should be used with all contact closures and LEDs.

Table 3: L

OGIC IN/OUT PORT

Pin Descriptions

Pin In/Out Function 1 Input AGC enable/disable 2 Input Noise Suppression enable/disable 3 Input Auto answer enable/disable 4 Input Reserved 5 Input Phone connect/disconnect 6 Input Remote connect/disconnect 7 Input Privacy on/off 8 Input Reserved (do not connect) 9 Output Res erved (do not connect) 10 Output Phone connect status 11 Output Privacy status 12 Output Remote connect status 13 Input Reserved (do not connect) 14 Input Reserved (do not connect) 15 Ground

Note

OGIC IN/OUT PORT

The L

should not be used at the same time as the RS-232 remote control or front pane l buttons. If you change the status of a command using RS-232 or the front panel, the L

OGIC IN/OUT PORT

switch will not change position. This means the switc hes will not reflect the act ual status of the EF200, which is confusing to the user. While the RS-232 P

ORT

OGIC IN/OUT PORT

and L

can be used at the same

time, we don’t recommend it due to this potential confusion. The figure below shows what type of circuit should be used with the Logic In/Out

Port. Any switch can be used for the inputs. The outputs are 5V TTL outputs, with a built-in 220 Ohm resistor. The se can be used to drive most LEDs. Of course, we recommend using a blue LED for the privacy status.

1 2 3 11 12

Figure 4. L

OGIC IN/OUT PORT

circuit.

PERATING THE

EF200

PERATING THE

SING THE

EF200 W

Making a Call

Receiving a Call

EF200

ITHOUT

In order to use the EF200 without a remote control device, you need access to the front panel buttons. You also need a regul ar analog telephone handset, which should be connected to the T

Follow these ste ps to make a call using the EF200 front pane l and a handset:

1. The EF200 shou ld initially b e on hook (the P

2. Pick up the handset, and wait for a dial tone.

3. Dial the phone number, and navigate th rough any touch tone menus, if necessary.

4. Push the P

5. Hang up the handset.

6. The conversat ion may now begin.

When someone is calling the telephone line to which the EF200 is connected , the analog handset conne cted t o the T the T P C

RS-232 C

lit).

HONE

NECT

light should turn on.

AEC and TO R

HONE

button to answer the call and give the EF200 control of the line. The P

ONNECT

light should turn on. The conversation may begin immediately.

ONTROL

O PHONE

button to give the EF200 control of the line. The P

EMOTE

jack.

HONE CONNECT

O PHONE

connector whi ch may be heard b y bot h parti es. Push th e

jack will ring. A ring tone will a lso be se nt to

LED should not be

HONE CON

HONE

Ending a Call

Muting the EF200

Warning!

SING THE

EF200

When the call is over, you can end the call by pushi ng the P panel. The P hook, be sure to ha ng up the analog handset connected to the T

You can mute the EF200 by pushing t he P

VACY ON

When th e P put or the remote side.

The P

ECORD

R recorded on a device conne cted to the EF400, use the M EF400 rear panel.

WITH

RS-232 C

You can control all of the EF200’s features with an RS-232 remote control device. All of the dialing functions can be controlle d through the RS-232 port. You can also use the front panel or an analog handset to make calls, as des cribed in the previous section, even if you have an RS-232 remote control device connec ted to the system. The instructions below explain which RS-232 commands are needed to accomplish each function. Users may not need to know these commands, since they may be hidden behind the user interface of the remote control device.

HONE CONNECT

light will turn on. You can unmute the EF200 by pushi ng the butt on again.

RIVACY ON

RIVACY

button on the EF200 front panel does not mute the audio going to the

output on the EF400. If you want to prevent local speech from being

ONTROL

light should turn off. Also, if the analog phone is off

light is on, the F

RIVACY

ROM

button on the front panel. The PRI-

AEC signal is not sent to the phone out-

HONE

button on the front

O PHONE

UTE

contact closure on the

jack.

ASPI Digital -

The Sound of DSP

EF200 U

SER MANUAL

Making a Call

Receiving a Call

Follow these steps to make a call using the EF200 command set:

1. The EF200 should initially be on hook (the P

HONE CONNECT

light should not be

lit).

2. Take the EF200 off hook by sending the PHONE1 command (the P

NECT

light will turn on), and wait for a dial tone. Dial tone will be audib le on the

HONE CON

local and remote ends.

3. Dial the number using the DIAL command.

4. The conversat ion may begin as soon as the other party picks up the line.

These events occur when a call is received by the EF200:

1. When the phone rings, the R ING! message will be sent to the remote control

device (if the message s a r e enabled). Also, ring tones may be sent to the T AEC output to provide an audible indica tion that the line is ringing.

2. If caller ID is enabled, caller ID info r mation will be sent to the remote control

device between the first and second rings.

3. If auto answer is enabled, the EF200 will answer the phone after the second ring.

4. If auto answer is not enabled, you can answer the line by sending the PHONE1

command at any time.

5. An entry tone will be played when the call is answered, if entry tones are

enabled.

Ending a Call

Muting the EF200

To end the call, send the PHONE0 command to th e EF200. This will cause the EF200 to hang up.

The EF200 can be muted in various ways using the RS-232 command set.

Command Description Effects

ROM

PRIVACY Mute All Nobody hears the F

AEC signal.

MUTEP Mute Phone The people on the phone don’t hear anyone. MUTER Mute Remote The people on the re mote end don’t hear anyone. HOLD Phone on Hold Telephone audio is muted in both directions.

If you send more tha n one mu te command t o the EF200, yo u have to turn e ach one off individually. For instance, if you turn on MUTEP and PRIVACY, and then turn off PRIVACY, the people on the phone won’t hear anyone until you turn off MUTEP as well.

RIVACY ON

The P mand is s e nt, or the P

VACY ON

light is lit, nobody can hear you.

light on the front panel will only light up when the PRIVACY com-

RIVACY

button on the front panel is pushed. Any time the PRI-

Warning!

Privacy mode does not mut e audi o going to the R

ECORD

output of the EF400. If you

want to prevent local speech from being recorded on a device connected to the

UTE

EF400, use the M

contact closure on the EF400 rear panel.

ROUBLESHOOTING

ESIDUAL ECHO

If there is residu al echo in the system, it may not be a problem with t he EF200. The re are different types of ec hoes that come from different directions, and the EF200 is only designed to rem ove one of them. The first step is to make sure the echo isn’t caused by something else. Then, the EF200 can be adjusted to remove any residual echo coming from the hybrid.

Identifying the Echo Source

Removing the Echo

If both the AEC and Remote connections are used, troubleshoot the system without the EF200’s phone conne cted at first. This will make sure the 4-wire AECs on both ends are working pro perly. If one side hears echo, there is a problem with the AEC on the other s ide. Troubleshoot the AEC according to the instructio ns for that device.

Make a call to test the EF200’s telephone interface. If the party on the phone hea rs echo, it is coming from the local or remote end. Disconnect one end at a time (by briefly unplugging the speaker or micro phone) 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 dis connecting the remote end. If the echo is still there, it is com ing from the EF200. Troubl es hoot the EF200 as described in the next secti on. If the echo goes away when the remote end is dis connected, troubleshoot the AEC on the rem ote end.

If residual echo is heard on the remote end, disconnect the microphone(s) in the local room. If t he echo is still ther e, it is coming from the EF200. Troubleshoot the EF200 as described below. If the echo go es away when the microphone is disconnected, the echo is coming from the local room. Troublesh oot the local AEC.

If the EF200 is no t removing hybrid echo, it may be due to a mismatch of levels coming into the EF200. If lev els are too far off, it may be diffic ult for the EF200 to determine when to adapt its filter. Make sure the levels are in the cor r ect range by watching the front pan el LED meters during norm al co nversa tion. The sign als shou ld regularly be hit ting the first yello w light, and occasionally flicker the second yell ow light. Adjust the inc oming signal levels if necessary. Also, make sure the LEC feature is enabled .

CAN’T R

ECEIVE CALLS OR DIAL OUT

Test with an Analog Phone

ASPI Digital -

The Sound of DSP

If you can’t receive calls or dial out, it is most likely because the telephone line is from a digital PBX system, or the remote control system is not properly co nnec ted.

Try connecting a re gular an alog te lep hone to the EF200’s l ine, 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 EF200 needs a standard analog line. You will need to get an analog phone line installed for the EF200.

EF200 U

SER MANUAL

Try Dialing Manually

Fix the Remote Control

CAN’T GET C

ALLER

If the analog telep hone works on the li ne, try using it wit h the EF200 to dial manually.

O LINE

Connect the T the handset to the T Without RS-232 Control” on page 17.

If you can make calls by dialing with the anal og handset, but not with the remote control device, that means there is a problem with the remote control. See the “Remote Control Problems” section below.

NFORMATION

ID I

You can test caller ID inform ation on your line by connec ting a caller ID box to the line. If the box detects caller ID information, make sure the EF200 has caller ID enabled (see the CID command).

If you can’t get caller ID information, it’s probably because caller ID is not available on that telephone line. Contact your local telephone company to add this service to the line.

Some digita l PBX syste ms sen d call er ID inform ation to di gital phon es on t he syst em, but not to analog lines controlled by the office switchboard. Even if your off ice phones get caller ID information, that doesn’t nece ssarily mean that informat ion is passed on to anal og lines as well.

jack of the EF200 to the telephone jack in the wall, and connect

O PHONE

jack. Try mak ing a ca ll , as out lin ed i n “Usi ng th e EF200

EMOTE CONTROL PROBLEMS

If the remote control device doesn’t seem to be affecting the EF200, there are a few things you can ch eck. Try sending commands that have a visible impact, like the PRIVACY command (which turns on the front panel P for messages from the EF200, like acknowledgement or error m essages, if the remote control device can display them.

Check Command Syntax

Check Device ID

Check RS-232

Make sure the commands that are b eing sent to the EF200 have the correc t syntax. If only a couple of the commands aren’t being processed, there may be an error in the syntax of t hose c ommands . Re member, the c omman ds are case sens itive . The EF 200 should return ERROR# messages if the commands are typed incorre ctly, as long as error message s are enabled.

Make sure the Device ID of the EF200 matches the Device ID of the commands that are being sent. If they don’t match, the EF200 will ignor e all the commands. Try sending a command to all devices (*** instead of Devic e T ype and Device ID). If this works but se nding commands to a specific device doesn’t , the Device ID doesn’t match.

Make sure the RS-232 cabl e is connected securely to the EF200 and the remote control device . Also, the RS-232 port on the remote co ntro l devic e should be s et to 960 0, 8-N-1.

RIVACY ON

light). Also, look

ROUBLESHOOTING

ONTACTING TECHNICAL SUPPORT

If these troubleshooting guidelines don’t resolve the problem you are experiencing with the EF200, please check our web site (http:/ /www.echofree.com/support) for the most current technical support information. If you have further questions , please contact us at:

Applicat ions Engineering ASPI Digital 1720 Peachtree St . NW Suit e 220 Atlanta, GA 30309-2439

Phone: (404) 892-3200 Fax: (404) 892-2512 Email: help@aspi.com

Before contacting us, please review the warranty and repair policy on page 24.

ASPI Digital -

The Sound of DSP

EF200 U

ECHNICAL SPECIFICATIONS

ECHANICAL SPECIFICATIONS

M Dimensions 8.15” (207mm) W x 8.40” (213 mm) L x 1.57 ” (40mm) H (1/ 2 rack

unit) Weight 2 lb. (1 kg) Connectors Audio: Min i (3.5mm) quick connect terminal blocks

RS232: DB9M

Logic In/Out: DB15HDF

ASPI Bus In/Out, Telephone Line/Set: RJ45

LECTRICAL SPECIFICATIONS

E Power External transformer (supplied): 100-240VAC; 47-63 Hz Power Consumption 5W To/From AEC level -20 dBu, nominal (bala nced) To/From Remote Level +4 dBu nominal, adjus table from -20 to +4 dBu (balanced) Output Impedance 50 Ohms (drives > 600 Ohm inputs) Input Impedance 10 kOhms Headroom 18 dB, nominal Hybrid Type Hybrid coil with automati c adapting DSP echo cancel lation Logic Normally open contact cl osure input s; normally low stat us outputs,

up to 10 mA high level drive at 3V

SER MANUAL

ERFORMANCE SPECIFICATIONS

P Phone Frequency Response 60-3800 Hz, +/- 1 dB Mixer Frequency Response 20-20,000 Hz, +/- 1 dB Line Echo Cancellat ion 40 dB, total 60 dB. 30 dB/sec convergence rate. LEC Tail Length 30 m s Noise Suppression 6 dB or 10 dB, selectable

OMPLIANCE

The EF200 is compliant with the ITU G.165 and G.168 requirements for line echo cancellers , CE requirements, FCC part 15 requirements, and FCC part 68 requirements.

FCC Part 15

This equi pm ent has been tes ted and found to comply wi th the limits for a Clas s A digital device, pursuant to Part 15 of the FCC Rules. These lim its are designed to provide reasonable protection against harmful interfere nce when the equipment is operated in a commercial e nvironment. This equipment generates, uses, a nd can radi-

ECHNICAL SPECIFICATIONS

ate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interfe renc e to radio communic ations. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be re quired to correct the interference at his own expense.

This product was tes ted with ferrites around the cables connected to the DB9 and DB15 connectors. Ferrites must be used on these cables to insure compliance.

FCC Part 68

Warning!

FCC Regulations state that any unauthorized changes or modifications to thi s equipment not expressly approved by the manufacturer could void the user’s authorizatio n to oper ate this e quipme nt .

The EF200 complies with Part 68 of the FCC Rules. The label affixed to this equipment contains, among other information, the FCC Registration Number and Ringer Equivalence Number (REN) for this equipment. You must, upon request, provide this information to your telephone compa ny.

The REN is useful to det erm ine the quantity of devices you may connect to your telephone line and still have all of these device s ring when your telephone number is called. In most, but not all areas, the sum of the REN’s of all devi ces connected to one line should not exc eed five (5.0). To be c ertain of t he nu mber of devi ces y ou may connect to your line, as determined by the REN, you should contact your local telephone company to dete rmine the maximum REN for your callin g area.

An FCC complia nt telep hone co rd a nd modul ar p lug is prov ided wit h t his e quip ment. This equipment is desi gned to be connect ed to the tel ephone network or pr emises wiring using a compatible modular jack which is Part 68 compliant. See Installation Instructions for details.

If your EF200 causes har m to th e telephone network the Tel ephone Company may discontinue your service temporarily. If possible, they will notify you in advance. But if advance notice is not practical you will be notified as soon as possible. You will be informed of your right to file a complaint with the FCC.

ASPI Digital -

Your telephone compa ny may make ch anges in its facil itie s, equipm ent, oper ations or procedures that could affect the proper functioning of your equipment. If they do, you will be notified in advance to give you an opport unity to maintain uninterrupted telephone service.

Connections to party lines are subject to state tariffs . Contact your local telephone company if you pla n to use this equipment on par ty lines.

This equipmen t cannot be used on publi c coin s ervice lines pr ovided by the telep hone company.

If you have trouble with the EF200, please contact us for information on obtaining service or repairs (see “Warranty Information” on page 24). The telephone company may ask that you disconnect this equipment from the network until the problem has been cor r ected or until you are s u re that the equipment is not malfunctioning.

The Sound of DSP

ARRANTY INFORMATION

EF200 U

SER MANUAL

What is covered

For how long

What we will do

Limitations

Any defect in materials or workmanship.

Two years.

If your ASPI Digi tal product is defect ive and returned within two years of the date of purchase, we will repa ir or, at our option, replace it at no charge to you.

If we repair your ASPI Digital product, we may use new or reconditioned replacement parts. If we choos e to rep lace your ASPI Dig ita l product , we may repl ace it with a new or recondi tioned one of the sam e or simi lar des ign. The repair o r repl acemen t is warranted for either (a ) 90 days or (b) th e remainder of t he origin al two-ye ar warranty period, whichever is longer.

ASPI Digital s hall not be respons ible for spe cial, inci dental , i ndirec t, or c onseq uentia l 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 replacement of equipment and property, and any cost of recovering, reprogramming, or reproducing any pro gram or data stored in or used with ASPI Digital 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 limitations may not apply to you.

What we ask you to do

To obtain warranty service for your ASPI Digital product, call us at (404) 892-3200 or fax us at (40 4) 892 -2512 and we wi ll is sue a Return Ma teria l Authori zati on nu mber (RMA#). Use the original packa ging materials to return the product. Ship th e product prepaid to:

ASPI Digital Attention: Warra nty Repair RMA# (Mus t be on pac kage) 1720 Peachtree Stree t NW, Suite 220 Atlanta, Geor gia 30309-2439 USA

Please be sure to include yo ur name, company, addr ess, phone number, and a description of the problem. After repairing or replacing your ASPI Digital product , we will ship it to you via a surface carr ier of our choice at no cost to you. If you wish it shipped via a specific carrier at your cost, you must arrange it when you obtain the RMA#.

Repair or replacement of your ASPI Digital produc t is your exclusive remedy.

ARRANTY INFORMATION

What this warranty does not cover

No User Serviceable Parts

State Law Rights

This warranty does not cover defects resulting from accidents, damage while in transit to our service location, alterations, unauthorized repair, failure to follow instructions, 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 ASPI Digit al product is not covere d by our wa rranty, call us at (404 ) 892-3200 or fax us at ( 404) 892-2512 for a dvice a bout whe the r we will r epair y our ASP I Digita l product and for other repair information, including charges. ASPI Digital, in its sole discretion, may replace rather th an rep air your ASPI Digital product with a new or reconditioned one of the same or similar 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. ASPI Digital specifically disclaims any and all implied warranties, including, without lim itation, the warranties of merchantability and fitness for a particular purpose.

This product conta ins no user serviceable parts. Please contact ASPI Digital for repairs. Attempts to repair this product by an unauthorized technician will void your warranty.

This limited warranty gives you specific legal rights, and you amy have other rights that may vary from state to state.

ASPI Digital -

The Sound of DSP

EF200 U

SER MANUAL

EF200 C

OMMAND SYNTAX

OMMAND SET REFERENCE

The EF200 Command Set is used to control an EF200 using an RS-232 remote control device, suc h as a touch panel or personal computer. The commands control everything from ans wering and dialing, to en abling and configuring the EF200’s features.

The EF200 Command Set also includes messages, which are sent back to the remote control devic e. These messages can contai n ac knowledgment or status messages in response to EF200 commands. They may also carry informati on about events that occur on the telephone line, such as caller ID inform ation.

This re fer enc e de s cri be s t he syn t ax of al l of th e av ail ab le c om man ds an d mes sage s, as well as the purpose and effects of each of these commands. In short, it provides all the information necessary to integrate the EF200 Command Set into a remote control device.

The EF200 commands are short strings of text, which are case sensitive. The commands contain a device type and Device ID for specifying an individual device in a chain of ASPI Digit al products on an ASPI Bus, s o that commands can be targeted at a specific unit. They al so contain a command name, and some data to be used by the comman d . E ac h co mmand is te r m i na t ed wi th a carriage ret u r n (^M) character.

Description Number of Characters Range of Values

Device type

Device ID

Device Type 1 0-9,A-Z,* Device ID 2 00-31,** Command Name 1-7 0-9,A-Z Command Data 0-32 ascii characters Terminator 1 ^M

The device type indicates which ASPI Digital product the command is being sent to. For the EF200, the device type is always ‘A’.

The Device ID is a two digit decimal number indicating the Device ID number of a specific device. This is the same Device ID that is set by the rear panel DIP switches on the EF200. The Device ID must always have two digits, so if th e ID is less than ten, a leading ze r o is needed. For example, the Device ID for unit s i x is ‘06’.

Each EF200 in a system should have a different Device ID, so they can each be addressed individually. It’s ok for an EF200 to have the same Device ID as a different ASPI Digital product, because they will be differentiated by the devic e type.

On the EF200, the Device ID can be a 2 digit num ber from 00 to 31

EF200 C

OMMAND SET REFERENCE

Command name

Command data

Sending commands to multiple devices

Example

The command name is a unique string of characters that indicates which command the EF200 should exe cute. Com mand names for di fferent produc ts are not nec essarily the same, si nce the function and features of each product are different. A list of avai lable EF200 command names is shown in Table 4 on page 28.

The command data is a string of up to 32 ASCII characters which follows the command name. The allowed cont ent of the command data depends on whic h com mand is being used. Usual ly, this is only one character because most commands jus t turn a feature on or off. Some commands, however, may have several characters worth of data. For instance, the DIAL command may be given an entire phone number at once. Also, some messages from the EF200, such as caller ID information , may have several characters.

Commands can be sent to multiple devices by replac ing the device type or Device ID characters with th e ‘*’, character.

The following example commands illustrate the different ways you can send commands to multip le de vices by replacing the device type and/or Device ID with ‘*’ characters.

Command Effects

A12AA1 Enable auto answer on the EF200 wit h Device ID 12. *03ERROR1 Enable error messages for devices of all types with

Device ID 3.

A**DIAL411 Dial direc tory assista nce o n all EF200 s (don’t tr y th is a t

home, kids).

***SWVER? Request software versi on of all devices of all types.

ASPI Digital -

The Sound of DSP

ALID COMMANDS AND MESSAGES

The following table is a list of commands recogniz ed by the EF200.

Command Meaning Page

AA enable/disable auto answer mode 30 ACKMOD en able/disable acknowledgment mode 31 AGC enable /disable auto ma tic gain contro l 32 AH enable/disable auto hangup mode 33 CALLP en able/disab le call progress messages 34 CID enable /disable caller ID 35 DIAL di al one or more digits 36 DTMF e nable/disab le DTMF detection 37 DTMFC enable/disable DTMF clamping 38 ERROR e nable/disa b le error messages 39 FLASH send hook flash signal on phone line 40 GAINA set phone input gain 41 GAINP set phone output gain 42 HOLD put phone on hold without disconnecting 43 LEC enable /disable lin e echo cancell ation 44 LOCKFP lock front panel (disables front panel buttons) 45 MUTEP mute/unmute phone out put 46 MUTER mute/unmute remote output 47 NS enable/disable noise suppression 48 NSL set noise suppression level 49 PHONE connect/disconnect phone 50 PING see what devices are connected to the remote controller 51 PRIVACY privacy mode (mute all output audio) 52 REMCON remote connect/disconnect 53 RESETF restore settings to factory defaults 54 RESTNV restore settings from non-vol atile memory 55 RING e nable/disable ring messages 56 SAVENV save current settings to non-volatile memory 57 SOUNDL,

SOUNDP SWVER request software version 60 TONEE en able/disab le entry and exit tones 61 TONER enable/disable ring count 62

EF200 U

Table 4: EF200 Command List

send a tone to the AEC and remo te ends, or to the phone

SER MANUAL

EF200 C

OMMAND SET REFERENCE

The following ta ble is a list of messages sent by the EF200 to the host.

Table 5: EF200 Message List

Message Meaning Page

CALLP# call progress tone detected 63 CIDT caller ID time st amp 64 CIDN caller ID nam e 64 CID# caller ID phone number 64 CIDX caller ID not detected 64 DTMF# DTMF tone detected 65 ERROR# error condition occurred 66 PONG device response to PING command 67 RING! i ncoming ring detected 68

ASPI Digital -

The Sound of DSP

EF200 U

SER MANUAL

AA -

ENABLE/DISABLE AUTO ANSWER MODE

Remote Commands

EF200 Messages

When auto answer mod e is enabl ed, the EF200 aut omati call y picks up the phone after the second ring. When the cal l is finished, auto answer remains enabled and the EF200 will automatically answer the next call. If auto ans wer mode is disabled, th e PHONE command should be used to answer the call manually.

The factory default setting for AA is 0 (off).

The following commands can be sent by the remote control device to enable or disable auto an sw er.

Remote Command Effects

AA0 Turn off auto answer. AA1 Turn on au to an swer. AA2 Toggle auto answer on or off. AA? Request status of auto answer.

The followi ng messages are s ent by the EF200 in response to an AA? command, or in response to any AA command when acknowledgment mode is on.

Example

EF200 Message Message meaning

AA0 Auto answer is currently off. AA1 Auto answer is currently on.

In the followin g examp le, t he remote control devi ce re quests t he aut o answe r sta tus of the EF200 with Device ID number 12. Then it toggle s the auto ans wer status , turnin g it on. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12AA? A12AA0 A12AA2 A12AA1

EF200 C

OMMAND SET REFERENCE

ACKMOD -

ENABLE/DISABLE ACKNOWLEDGMENT MODE

Remote Commands

If acknowledgment mode is enabled, the EF200 will ac knowledge each command it receives by repeating the status of the command that was sent. This may be used for verifying that each command is received and recognized by the EF200. When acknowledgment mode i s turned off, th e remote control devi ce can a lways r equest t he status of a pa rameter by sending a query command, such as AA?. When acknowledgment mode is enabled, a query command only generates one message in response. Since acknowledgment mode reports the status of the command rather than simply echoing back th e comm and, you get a verification of the comm and’s effect.

The factory default setting for ACKMOD is 1 (on).

The following commands can be sent by the remote control device to enable or disable acknowledgment mode.

Remote Command Effects

ACKMOD0 Turn off ac knowledgment mode. ACKMOD1 Turn on ac knowledgment mode. ACKMOD2 Toggle acknowledgment mode on or off. ACKMOD? Request status of acknowledgment mode.

EF200 Messages

Example

The following messages a re sent by the EF200 in response to an ACKMOD? command, or in response to a ny ACKMOD comma nd when ac knowledgment mode is on.

EF200 Message Message meaning

ACKMOD0 Acknowledgment mode is currently off. ACKMOD1 Acknowledgment mode is currently on.

At the beginning of the example, acknowledgment mode is turned off at first. The remote control device turns on automatic gain control, and starts getting acknowledgments.

Remote Command EF200 Message

A23AGC1 A23ACKMOD? A23ACKMOD0 A23ACKMOD1 A23ACKMOD1 A23AGC2 A23AGC1

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EF200 U

SER MANUAL

AGC -

ENABLE/DISABLE AUTOMATIC GAIN CONTROL

Note

Remote Commands

The automatic gain control feature is applied to the incoming telephone signa l. It adjusts the gain of the incoming spee ch to keep it at a constant level. The AGC command enables or disables th is feature. To se t the target level for the automatic gain control , us e th e AGCL command.

There is also automati c gai n control on the ou tgoing te le phone si gnal, but it cannot be disabled.

The factory default setting for AGC is 1 (on).

The following commands can be sent by the remote control device to enable or disable auto ma tic gain contro l.

Remote Command Effects

AGC0 Turn off au tomatic gain control. AGC1 Turn on au tomatic gain control. AGC2 Toggle automatic gain control on or off. AGC? Request status of automatic gain control.

EF200 Messages

Example

The following messages are sent by the EF200 in response to an AGC? command, or in response to any AGC command when acknowledgment mode is on.

EF200 Message Message meaning

AGC0 Automatic gain control is currently off. AGC1 Autom atic gain control is curre ntly on.

In the following exampl e, the remote control de vice requests the automatic gain control status of the EF200 with De vice ID number 6. Then it enables the automatic gain control featu r e of the sa me EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A06AGC? A06AGC0 A06AGC1 A06AGC1

EF200 C

OMMAND SET REFERENCE

AH -

ENABLE/DISABLE AUTO HANGUP MODE

Remote Commands

When auto hangup mode is enabled, the EF200 will automatically hang up when call progress tones indicate that the other end of the line has been disconnected. For instance, i f the per son on the oth er end ha ngs up on you , the E F200 wil l automat ical ly hang up as well. Call pr ogress messages do not have to be enabled for this feature to work. If ent ry an d ex it to ne s ar e en abled (s ee TONEE), an exit tone will be played to indicate th at the EF200 has disconnected its phone interface.

The factory default setting for AH is 0 (off).

The following commands can be sent by the remote control device to enable or disable auto hangup mode.

Remote Command Effects

AH0 Turn off auto hangup mode. AH1 Turn on auto hangup mode. AH2 Toggle auto hangup mode on or off. AH? Request status of auto hangup mode.

EF200 Messages

Example

The followi ng messages are s ent by the EF200 in response to an AH? command, or in response to any AH command when acknowledgment mode is on.

EF200 Message Message meaning

AH0 Auto hangup mode is currently off. AH1 Auto hangup mode is currentl y on.

In the following exampl e, the remote control de vice requests the auto hangup mode status of the EF 200 with Devi ce ID number 12. Then it enable s aut o hangup mode on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12AH? A12AH0 A12AH1 A12AH1

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EF200 U

SER MANUAL

CALLP -

ENABLE/DISABLE CALL PROGRESS

Remote Commands

EF200 Messages

The CALLP command enabl es the CALLP# messages, which report call progress tones (such as ring, busy , or dial tone) to the remote control device.

The factory default setting for CALLP is 0 (off).

The following commands can be sent by the remote control device to enable or disable ca ll pro gr e s s

Remote Command Effects

CALLP0 Turn off call progress. CALLP1 Turn on call progress. CALLP2 Toggle call progress on or off. CALLP? Request status of call progress.

The followin g mess ages a re se nt by the EF200 in res ponse t o a CALLP? command, or in response to any CALLP command when acknowledgment mode is on.

Example

EF200 Message Message meaning

CALLP0 Call progres s is currently off. CALLP1 Call progress is currently on.

In the following exampl e, the remote control de vice requests the call progress status of the EF200 with De vice ID number 2. The n it disable s the call progress of the same EF200. Acknowledg ment mode is enabled.

Remote Command EF200 Message

A02CALLP? A02CALLP1 A02CALLP0 A02CALLP0

EF200 C

OMMAND SET REFERENCE

CID -

ENABLE/DISABLE CALLER

Remote Commands

The caller ID feature returns caller ID information between the first and second ring of an incoming call, if that service is provided on your telephone l ine. The CID command ena b les and disables this feature, but doesn’t actually collect any caller ID information. The CIDT, CIDN, and CID# messages from the EF200 will send this information to the remote control device later, when the call actually happens.

The phone company sends the caller ID information betwe en the first and second ring. If you manually pick up before the second ring, you won’t get caller ID. The auto answer function picks up after the second ring so that caller ID information can be received.

The factory default setting for CID is 0 (off).

The following commands can be sent by the remote control device to enable or disable caller ID

Remote Command Effects

CID0 Turn off caller ID. CID1 Turn on caller ID. CID2 Toggl e caller ID on or off.

EF200 Messages

Example

CID? Request status of caller ID.

The following mes sages are sent by the EF200 in respon se to a CID? co mmand , o r in response to any CID command when acknowledgment mode is on.

EF200 Message Message meaning

CID0 Caller ID is current ly off. CID1 Caller ID is curre ntly on.

In the following exampl e, the remote control de vice requests the caller ID status of the EF200 with Device ID number 6. Then it disables the caller ID of the same EF200. Acknowledg ment mode is enabled.

Remote Command EF200 Message

A06CID? A06CID1 A06CID0 A06CID0

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EF200 U

SER MANUAL

DIAL -

DIAL ONE OR MORE DIGITS

Remote Commands

EF200 Messages

The DIAL command causes the EF200 to dial one or more touch tone numbers. The numbers 0-9, the star (*), and the pound (#) digit s are di al ed as o n a nor mal telephone. The comma (,) charact er indicates that a 0.25 second pause should be inserted. Multiple comma ch aracter s wi ll inser t a longer pau se. Other character s are ignored. For instanc e, the phone number (404) 892-3200 is just as valid as

4048923200. If the EF200 is on hook when the DIAL command is sent, it wi ll a u to matic al ly take

itself off hook and wait for 0.75 seconds before dialing the digits.

The following command can be sent by the remote control device to di al one or more digits.

Remote Command Effects DIALs Dial the string s, where s is a string of up to 32

digits cont aining the phone number.

The following message is sent by the EF200 in response to a DIAL command when acknowledgment mode is on.

Example

EF200 Message Message meaning DIAL The EF200 received t h e DIAL command. The

phone number is not returned in the acknowledgment.

In the following example, the remote control device speed dials an entire phone number, and the n the user pushes a couple of extra digits to navigate through a touch tone menu. Acknowledgment mode is enabled.

Remote Command EF200 Message

A00DIAL9,,1(404)8 92-3200

A00DIAL2 A00DIAL A00DIAL3 A00DIAL

A00DIAL

EF200 C

OMMAND SET REFERENCE

DTMF -

ENABLE/DISABLE

Remote Commands

DTMF

The DTMF detection feature detects DTMF (touch tone) d igits when the caller on the other end of t he line pushe s touc h tone butt ons. It report s the se nu mbers to the remot e control device using the DTMF# messa ge when the DTMF detection f eature is enabled.

The DTMF detection featu re of the EF200 passes industry standa rd tests for talk-off and noise immunity. These tests make sure it is unli kely that the EF200 will fals ely detect speech or noise as a DTMF digit. It is still possible, however, that false detections will occur. Because of this, you sho uld avoid using single digit DTMF codes to control anythi ng. If two or more digits are required to make a valid code, single stray false digits will have no effect.

The factory default setting for DTMF is 0 (off).

The following commands can be sent by the remote control device to enable or disable DTMF detection

Remote Command Effects

DTMF0 Turn off DTMF detection. DTMF1 Turn on DTMF detection. DTMF2 Toggle DTMF detection on or off.

DETECTION

EF200 Messages

Example

DTMF? Request status of DTMF detection.

The following messages a re sent by the EF200 in response to a DTMF? command , or in response to any DTMF command when acknowledgment mode is on.

EF200 Message Message meaning

DTMF0 DTMF detection is currently off. DTMF1 DTMF detection is currently on.

In the following example, the remote control device requests the DTMF detection status of the EF200 with Device ID number 8. Then it enables the DTMF detection of the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A08DTMF? A08DTMF0 A08DTMF1 A08DTMF1

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EF200 U

SER MANUAL

DTMFC -

ENABLE/DISABLE

Remote Commands

EF200 Messages

DTMF

The DTMF clamping feature attenuates the input telephone signal when a DTMF digit is detected. This basically mutes the DTMF digits punched by the caller, so other people in th e conference don’t hear them.

The factory default setting for DTMFC is 0 (off).

The following commands can be sent by the remote control device to enable or disable DTM F Cl amping

Remote Command Effects

DTMFC0 Turn off DTMF clamping. DTMFC1 Turn on DTMF clamping. DTMFC2 Toggle DTMF clamping on or off. DTMFC? Request status of DTMF clamping.

The followin g mess ages a re se nt by the EF200 in res ponse t o a DTMFC? command, or in response to any DTMFC command when acknowledgment mode is on.

CLAMPING

Example

EF200 Message Message meaning

DTMFC0 DTMF clamping is currently off. DTMFC1 DTMF clamping is currently on.

In the following example , the remote control de vice requ ests the DTMF clamping st atus of the EF200 with Device ID number 17. Then it disables the DTMF clamping of the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A17DTMFC? A17DTMFC1 A17DTMFC0 A17DTMFC0

EF200 C

OMMAND SET REFERENCE

ERROR -

ENABLE/DISABLE ERROR REPORTING

Remote Commands

EF200 Messages

When the EF200 detects an error (us ually a command syntax error), it may report it using the ERROR# message. The ERROR comman d en ab l es o r disables th e er ro r reporting feature. This is useful for debugging the comman ds coming from the remote control device.

The factory default setting for ERROR is 1 (on).

The following commands can be sent by the remote control device to enable or disable error reporting

Remote Command Effects

ERROR0 Turn off error reporting. ERROR1 Turn on error reporting. ERROR2 Toggle error reporting on or off. ERROR? Request status of error reporting.

The following mess ages are sent by the EF200 in respons e to an ERROR? comman d , or in response to any ERROR command when acknowledgment mode is on.

Example

EF200 Message Message meaning

ERROR0 Error reporting is current ly off. ERROR1 Error reporting is currently on.

In the following exam ple, the re mote control devic e request s the erro r reporting s tatus of the EF200 with Device ID number 7. Then it enabl es the error reporting of the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A07ERROR? A07ERROR0 A07ERROR1 A07ERROR1

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EF200 U

SER MANUAL

FLASH -

SEND HOOKFLASH TO THE PHONE LINE

Remote Commands

EF200 Messages

Example

The FLASH command is used to send a hookflash signal on the phone line, in effect by hanging up th e EF200, a nd quickl y pic king it up a gain. This is just like the “flas h” button on many telephones, used for call waiting features.

This command has no effect when the EF200 is not connected.

The following c ommand can be sent by the remote cont rol device to han g up and pick up again.

Remote Command Effects FLASH Send a hookflash signal on the phone lin e.

No FLASH messages are sent by the EF200 in re sponse to a FLASH command, but it will send PHONE commands when i t h angs u p and pic ks up, i f ackno wledgme nt mod e is on. See the example below.

In the following exampl e, the remote control devic e send the FLASH command to the EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A06FLASH A06PHONE0

A06PHONE1

EF200 C

OMMAND SET REFERENCE

GAINA -

SET PHONE INPUT GAIN

Remote Commands

EF200 Messages

The GAINA command sets the phone input gai n level of the EF200 to any level between -99 dB and 12 dB. Notice that this command can only apply 12 dB of gain, or up to 99 dB of attenuation. The gain applied by GAINA is not seen by automatic gain control, so changing GAINA will effectively change the AGC target level (if AGC is enabled). In most cases , we re comme nd disabling AGC if GAINA is used.

The factory default setting for GAINA is 3 (3 dB gain).

The following commands can be sent by the remote control device to set the phone input gain level

Remote Command Effects

GAINAx Set phone input gain to x dB (between -99 and

12)

GAINA? Request current phone input gain.

The followin g mess ages a re se nt by the EF200 in res ponse t o a GAINA? command, or in response to any GAINA command when acknowledgment mode is on.

Example

EF200 Message Message meaning GAINAx Phone input gain is currently x dB.

In the following e xampl e, the remote con trol device requests the cu rrent phone output gain of the EF200 with Device ID number 9. Then it sets a new level on the same EF200. Acknowledg ment mode is enabled.

Remote Command EF200 Message

A09GAINA? A09GAINA3 A09GAINA-20 A09GAINA-20

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EF200 U

SER MANUAL

GAINP -

SET PHONE OUTPUT GAIN

Remote Commands

EF200 Messages

The GAINP command sets the phone outp ut gain level of the EF200 to any level between -99 dB and 0 dB. Notice that this command can only apply attenuation.

The factory default setting for GAINP is 0 (0 dB gain).

The following commands can be sent by the remote control device to set the phone output gain level

Remote Command Effects

GAINPx Set phone outpu t gain to x dB (between -99 and

GAINP? Request current phone output gain.

The followin g mess ages a re se nt by the EF200 in res ponse t o a GAINP? command, or in response to any GAINP command when acknowledgment mode is on.

EF200 Message Message meaning GAINPx Phone output gain is currently x dB.

Example

Remote Command EF200 Message

A09GAINP? A09GAINP0 A09GAINP-20 A09GAINP-20

EF200 C

OMMAND SET REFERENCE

HOLD -

PUT PHONE ON HOLD WITHOUT DISCONNECTING

Remote Commands

EF200 Messages

The HOLD command mutes audio going to and from the telephone line. This is like taking the peopl e on the phone out of the conference , without actually hanging up on them. This is different than the hold feature of your office telephone system, so the person on the phone won’t hear music or be able to push a button to talk to an attendant.

The setting for HOLD is always 0 (off) when the EF200 is reset.

The following commands can be sent by the remote control device to take the phone on or off hold.

Remote Command Effects

HOLD0 Take the phone off hold. HOLD1 Put the phone on hold. HOLD2 Toggle to phone on and off hold. HOLD? Request status of whether the phone is on hold.

The following messages a re sent by the EF200 in response to a HOLD? command , or in response to any HOLD command when acknowledgment mode is on.

Example

EF200 Message Message meaning

HOLD0 The phone is not on hold. HOLD1 The phone is on hold.

In the following example, the remote control de vice requests the on hold status of the EF200 with Device ID number 12. Then it puts the same EF200 on hold. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12HOLD? A12HOLD0 A12HOLD1 A1HOLD1

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EF200 U

SER MANUAL

LEC -

ENABLE/DISABLE LINE ECHO CANCELLATION

Remote Commands

EF200 Messages

The line echo canceller is the heart of the EF200, which removes residual echo from the tele phone line. We can’t think of a reas on you would wa nt to turn it off, exc ept to see wh at a gre at job it’ s do ing.

The factory default setting for LEC is 1 (on).

The following commands can be sent by the remote control device to enable or disable line echo cancellation

Remote Command Effects

LEC0 Turn off line echo cancellation. LEC1 Turn on line echo cancellation. LEC2 Toggle line echo cancel lation on or off. LEC? Request status of line echo cancellation.

The following messages a re sent by the EF200 in response to an LEC? command, or in response to any LEC command when acknowledgment mode is on.

Example

EF200 Message Message meaning

LEC0 Line echo cancellation is currently off. LEC1 Line echo cancellation is currently on.

In the following exampl e, the remote control de vice requests the lin e ec ho ca ncellation status of the EF200 with Device ID number 3. Then it enables line echo cancellation on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A03LEC? A03LEC0 A03LEC1 A03LEC1

EF200 C

OMMAND SET REFERENCE

LOCKFP -

LOCK/UNLOCK FRONT PANEL

Remote Commands

EF200 Messages

The LOCKFP command locks the front panel buttons of the EF200 so that they have no effect.

The factory default setting for LOCKFP is 0 (unlocked).

The following commands can be sent by the remote control device to lock or unlock the front panel of the EF200.

Remote Command Effects

LOCKFP0 Unl ock the front panel button s. LOCKFP1 Lock the front panel button s. LOCKFP2 Toggle between locked and unlocked. LOCKFP? Request status of front panel lock.

The following messages are sent by the EF200 in response to a LOCKFP? command , or in response to any LOCKFP command when acknowledgment mode is on.

Example

EF200 Message Message meaning

LOCKFP0 Front panel buttons ar e currently unlocked. LOCKFP1 Front panel button s ar e currently locked.

In the following example, the remote control device requests the status of the front panel buttons of the EF200 with Device ID number 12. Then it locks the front panel on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12LOCKFP? A12LOCKFP0 A12LOCKFP1 A12LOCKFP1

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EF200 U

SER MANUAL

MUTEP -

MUTE AUDIO TO PHONE

Remote Commands

EF200 Messages

The MUTEP command mute s all sign als going to the phone interface. This mean s the people on the AEC and remote ends can talk to each other without the party on the phone hearing. Also, se e the MUTER and PRIVACY commands .

The setting for MUTEP is always 0 (off) when the EF200 is reset.

The followi ng commands can be sent by t he remote control device to mute or unmute the audio going to the phone.

Remote Command Effects

MUTEP0 Unmute the audio going to the phone. MUTEP1 Mute the audio going to the phone. MUTEP2 Toggle to phone mute on or off. MUTEP? Request status of to phone mute.

The followin g mess ages a re se nt by the EF200 in res ponse t o a MUTEP? command, or in response to any MUTEP command when acknowledgment mode is on.

Example

EF200 Message Message meaning

MUTEP0 Audio going to the phone is currently not muted. MUTEP1 Audio going to the phone is currently muted.

In the following exampl e, the remot e control device reques ts th e to phone mute stat us of the EF200 with Device ID number 12. Then it mutes the audio going to the phone on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12MUTEP? A12MUTEP0 A12MUTEP1 A12MUTEP1

EF200 C

OMMAND SET REFERENCE

MUTER -

MUTE AUDIO TO REMOTE

Remote Commands

EF200 Messages

The MUTER command mutes (or unmutes) audio going to the remote end from the EF200. This means no audio is sent out the T the AEC and phone ends to have a conversation without the people on the re mote end hearin g . Also, see the MUTEP and PRIVACY commands .

The setting for MUTER is always 0 (off) when the EF200 is reset.

The followi ng commands can be sent by t he remote control device to mute or unmute the audio going to the remote end.

Remote Command Effects

MUTER0 Unmute audio going to the remote end. MUTER1 Mute audio going to the rem ote end. MUTER2 Toggle remote mute on or off. MUTER? Request status of remote mute.

The followin g mess ages a re se nt by the EF200 in res ponse t o a MUTER? command, or in response to any MUTER command when acknowledgment mode is on.

O REMOTE

jack. This allows people on

Example

EF200 Message Message meaning

MUTER0 Audio going to remote is currently not muted. MUTER1 Audio going to remote is currently muted.

In the following exampl e, the remote control de vice requests the to remot e mute s tatus of the EF200 with Device ID number 12. Then it mutes the audio going to the remote end on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12MUTER? A12MUTER0 A12MUTER1 A12MUTER1

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EF200 U

SER MANUAL

NS -

ENABLE/DISABLE NOISE SUPPRESSION

Remote Commands

EF200 Messages

The noise suppres sion feature improves the signal-to-noise ratio of the incoming tel ephone spee ch by e ith er 6 or 1 0 dB. The NS c ommand en ables or dis able s thi s featu re. The NSL command selects between 6 and 10 dB of noise suppression. Noise suppression is only app lied to the incoming telephone audio.

The factory default setting for NS is 1 (on).

The following commands can be sent by the remote control device to enable or disable noise suppression.

Remote Command Effects

NS0 Turn off noise suppression. NS1 Turn on noise suppression. NS2 Toggle noise suppression on or off. NS? Request status of noise suppression.

The followi ng messages are s ent by the EF200 in response to an NS? command, or in response to any NS command when acknowledgment mode is on.

Example

EF200 Message Message meaning

NS0 Noise suppression is curre ntly off. NS1 Noise suppression is currently on.

In the following exampl e, the remote control de vice requests the noise suppression status of the EF200 with Devic e ID number 12. Then it enables nois e s uppression on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12NS? A12NS0 A12NS1 A12NS1

EF200 C

OMMAND SET REFERENCE

NSL -

SET NOISE SUPPRESSION LEVEL

Remote Commands

EF200 Messages

The factory default setting for NSL is 10 (10 dB of noise suppression).

The following commands can be sent by the remote control device to change the noise suppres sion level.

Remote Command Effects

NSL6 Set noise suppression level to 6 dB. NSL10 Set noise suppression leve l to 10 dB. NSL? Request current noise s uppression level.

The following messages a re sent by the EF200 in response to an NSL? command, or in response to any NSL command when acknowledgment mode is on.

Example

EF200 Message Message meaning

NSL6 The noise suppression level is currently 6 dB. NSL10 The noise suppression level is currently 10 dB.

In the following exampl e, the remote control de vice requests the current noise suppression level of the EF200 with Device ID number 12. Then it changes the noise suppression leve l on the same EF200. Acknowledgment m ode is enabled.

Remote Command EF200 Message

A12NSL? A12NSL6 A12NSL10 A12NSL10

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EF200 U

SER MANUAL

PHONE -

CONNECT/DISCONNECT PHONE LINE

Remote Commands

EF200 Messages

The PHONE command is used to ta ke the EF200 off hook, or hang it up. Thi s has the

HONE

same effect as the front panel P The setting for PHONE is always 0 (disconnected) when the EF200 is reset.

The following commands can be sent by the remote control device to take the phone on or off hook.

Remote Command Effects

PHONE0 Hang up the EF200. PHONE1 Connect the EF200 to the phone line. PHONE2 Toggle the EF200 between on and off hook. PHONE? Request the on/off hook status of the EF200.

The followin g mess ages a re se nt by the EF200 in res ponse t o a PHONE? command, or in response to any PHONE command when acknowledgment mode is on.

button.

Example

EF200 Message Message meaning

PHONE0 The EF200 is currently on hook (disconnected). PHONE1 The EF200 is currently off hook (connected).

In the following example, the remote control device requests the on/off hook status of the EF200. Then it takes the EF200 off hook. Acknowledgment mo de is enabled.

Remote Command EF200 Message

A06PHONE? A06PHONE0 A06PHONE1 A06PHONE1

EF200 C

OMMAND SET REFERENCE

PING -

SEE WHAT DEVICES ARE PRESENT

Remote Commands

EF200 Messages

The PING command “pings” all of the devices on the ASPI Bus to find out what is connected to it. Each device will respond with a PONG message, which contains its device type and devi ce ID. This lets you know how many of each type of device is connected, and what dev ice ID it has.

Generally, the PING command should be us ed with asterisks to query all devices, or devices of a certain type. For example, ***PING queries all devices on the bus, while A**PING queries all EF200s on the bus.

The following command c an be sent by the remote control dev ice to find out what devices are con n ected to the ASPI Bus.

Remote Command Effects PING Requests a PONG message from the device.

The EF200 never sends a PING message, but will send a PONG message in response to one (see PONG).

Example

In the following example, the remote control device req ues ts a PONG messag e from all EF200s on the ASPI Bus. Two EF200 s resp ond.

Remote Command EF200 Message

A**PING A08PONG

A15PONG

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EF200 U

SER MANUAL

PRIVACY -

ENABLE/DISABLE PRIVACY MODE (MUTE ALL OUTGOING AUDIO

Remote Commands

EF200 Messages

)

The PRIVACY command mutes (or unmutes) audio going to the remote end and to the phone from the EF200. This means the people on the AEC end are not hear by people on the remote or phone ends. This has the same effect as the P on the front panel, and will light the P MUTEP and MUTER commands.

The setting for PRIVACY is always 0 (off) when the EF200 is reset.

The followi ng commands can be sent by t he remote control device to mute or unmute all output audio.

Remote Command Effects

PRIVACY0 Turn off privacy mode. PRIVACY1 Turn on privacy mode. PRIVACY2 Toggle privacy mode on or off. PRIVACY? Request status of privacy mode.

The following messages a re sent by the EF200 in response to a PRIVACY? command, or in response to any PRIVACY command when a cknowledgment mode i s on.

RIVACY ON

LED when enabled. Als o , see the

RIVACY

button

Example

EF200 Message Message meaning

PRIVACY0 Privacy mode is currently off. PRIVACY1 Privacy mode is currently on.

In the following example, the remote control device reque st s the privacy mode status of the EF200 with Device ID number 12. Then it turns on privacy mode on the same EF200. Acknowledg ment mode is enabled.

Remote Command EF200 Message

A12PRIVACY? A12PRIVACY0 A12PRIVACY1 A12PRIVACY1

EF200 C

OMMAND SET REFERENCE

REMCON -

REMOTE CONNECT/DISCONNECT

Remote Commands

EF200 Messages

The REMCON command connects or disconnect s the audio paths going to and from

EMOTE

the remote end. It has the same effect as pushing the R panel of the EF200.

The setting for REMCON is always 0 (off) when the EF200 is reset.

The following commands can be sent by the remote control device to connect or disconnect the remote end.

Remote Command Effects

REMCON0 Disconnect the remote end. REMCON1 Connect the r emote end. REMCON2 Toggle remote end between conne ct/disconnect. REMCON? Request status of remote connection.

The following messages are sent by the EF200 in response to a REMCON? command , or in response to any REMCON command when acknowledgment mode is on.

button on the front

Example

EF200 Message Message meaning

REMCON0 The re mote end is currently disconnected. REMCON1 The re mote end is currently connected.

In the following exampl e, the remote control de vice requests the to remot e connect status of the EF200 with Device ID number 12. Then it connects the remote end on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12REMCON? A12REMCON0 A12REMCON1 A12REMCON1

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EF200 U

SER MANUAL

RESETF -

RESTORE SETTINGS TO FACTORY DEFAUL T S

Remote Commands

EF200 Messages

The RESETF command restores the EF200’s se ttings to the factory defaults. This will not change th e us er defaults unless the SAVENV comma n d is used to store the factory defaults as the power-u p settings . See the SAVENV command for information about saving the defaults in non-volatile memory. Also, see RESTNV for restoring the user default s from non-volatile memory.

The following command c an be sent by the remote control dev ice to restore the EF200 to the factor y defaults.

Remote Command Effects RESETF Change all the settings back to factory defaults.

The EF200 sends a RESETF message in response to a command, after it sends status messages for each of the settings that were changed by the restore operation, if

acknowledgment mode is enabled.

EF200 Message Message meaning RESETF The EF200 has finished res toring the defaults.

Example

In the fol lowi ng exam pl e, the re mote cont rol dev ice re s tores the de fau lt sett ing s of th e EF200 with Device ID number 12. The EF2 00 sends back an acknowledgment aft er the restore is complete. Acknowledgment mode is ena bled.

Remote Command EF200 Message

A12RESETF

EF200 C

OMMAND SET REFERENCE

RESTNV -

RESTOR E SETTINGS FROM NON-VOLATILE MEMORY

Remote Commands

EF200 Messages

The RESTENV command restores the EF200’s settings to the user (power-up) defaults stored in the non-volatile m em ory. This is useful for putting the EF200 in its “normal” configuration after someone has changed the settings for a pa rticular call. See the SAVENV command for information about saving the user defaults in non-volatile me m o r y .

The following command c an be sent by the remote control dev ice to restore the EF200 to the user defaults.

Remote Command Effects RESTNV Change al l the settings bac k to their defaults.

The EF200 sends a RESTNV message in response to a command, after it sends status messages for each of the settings that were changed by the restore operation, if

acknowledgment mode is enabled.

EF200 Message Message meaning RESTNV The EF200 has finished res toring the defaults.

Example

Remote Command EF200 Message

A12RESTNV

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EF200 U

SER MANUAL

RING -

ENABLE/DISABLE INCOMING RING MESSAGES

Remote Commands

EF200 Messages

The RING command enables or disables ring messages. Ring messages (RING!) are sent by the EF200 to the remote control device when an incom ing ring is detected on the telephone line. Also, see the RING! message an d th e TONER comman d .

The factory default setting for RING is 0 (off).

The following commands can be sent by the remote control device to enable or disable ring messages.

Remote Command Effects

RING0 Disable incoming ring messages. RING1 Enable incoming ring messages. RING2 Toggle ring messages on or off. RING? Request status of ring messages.

The following messages a re sent by the EF200 in response to a RING? command , or in response to any RING command when acknowledgment mode is on.

Example

EF200 Message Message meaning

RING0 Ring messages are currently disabled. RING1 Ring messages are currently enabled.

In the following exampl e, the remote control de vice requests the incomi ng ring message status of the EF200 with Device ID number 12. Then it enables ring mes sa ges on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12RING? A12RING0 A12RING1 A12RING1

EF200 C

OMMAND SET REFERENCE

SAVENV -

SAVE CURRENT SETTINGS TO NON-VOLATILE MEMORY

Remote Commands

EF200 Messages

The SAVENV saves the EF200’s current settings to non-volatile memory. These settings will be used as the default sett ings each time the EF200 is powe r ed on. The default settings may also be restored by sending the RESTNV command.

Please note that audio may drop out for a second while the EF200 writes to non-volatile memory. Normally, the SAVENV command is used during the confi guration process, when a conversation is not taking place.

The followi ng commands can be sent by t he remote control device to save the current settings in non-volatile memory.

Remote Command Effects SAVENV Save the current settings as the user default.

The EF200 sends the following message in response to a SAVENV command, if acknowledgment mode is enabled.

EF200 Message Message meaning

Example

SAVENV The EF200 has finished saving the settings.

In the following exampl e, the remote control de vice saves the settin gs of the EF200 with Device ID number 12

Remote Command EF200 Message

A12SAVENV A12SAVENV

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EF200 U

SER MANUAL

SOUNDL, SOUNDP -

Remote Commands

SEND TONE TO AEC/REMOTE OR PHONE

The SOUNDL command sends tones to the TO AEC and TO R EF200. Similarly, the SOUNDP command sends tones to th e phone output. SOUNDL and SOUNDP can each send one of several tones which can be used by the remote controller to indicate events that happen during the call. For example, when the DTMF decoder is being used, the tones may indicate tha t an invalid code has been entered.

The following commands can be sent by the remote control device to send tones to the telephon e, or the AEC and remote ends.

Remote Command Effects SOUNDLx Send tone number x to the T

EMOTE

SOUNDPx Send tone number x to the phone.

The following list of tones can be sent with e ither SOUNDL or SOUNDP.

Tone Number Description 00 Ascending tone (same as ent r y tone).

outputs.

EMOTE

AEC and TO

outputs of the

EF200 Messages

01 Descending tone (same as exit tone). 02 Ascending chords (entry tone with harmony). 03 Descending chords (exit tone with harmony) . 04 Ascending doorbell-like tone. 05 Descending doorbell-like tone. 06 Two short buzz ton es . 07 One long buzz tone.

The followin g mess ages a re se nt by the EF200 in res ponse t o a TONEE? command, or in response to any TONEE command when acknowledgment mode is on.

EF200 Message Message meaning

TONEE0 Entry and exit ton es are currently disable d. TONEE1 Entry and exit ton es are currently enabled.

EF200 C

OMMAND SET REFERENCE

Example

The following example illustrates passcode entry using SOUNDL and SOUNDP to indicate status. The EF200 auto a n swe r s, and the remote con troller puts it on hold as soon as it picks up (so th at the caller can’t p articipate in th e co nference until the correct passcode has bee n entered). The controller tells the EF200 to send a doorbell tone to everyone, indicating that someone has called and needs to enter a passcod e. The caller tried the passcode, and gets it wrong the first t ime (according to the remote controller), so the controller sends a buz z tone to the caller indicating an incorrect passcode. The caller tries again and gets the right code. The controller sends entry tones to the call er and the room indicating tha t the caller has now entered the conference. The caller is taken off hold. Acknowledgment mode, ring messages, auto answer, and DTMF decoding are enabled. Entry tones are disabled.

Remote Command EF200 Message

A12RING! A12RING!

A12PHONE1 A12HOLD1 A12HOLD1 A12SOUNDP05 A12SOUNDP05 A12SOUNDL05 A12SOUNDL05

A12DTMF#1

A12DTMF#2

A12DTMF#4 A12SOUNDP07 A12SOUNDP07

A12DTMF#1

A12DTMF#2

A12DTMF#3 A12SOUNDP00 A12SOUNDP00 A12SOUNDL00 A12SOUNDL00 A12HOLD0 A12HOLD0

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EF200 U

SER MANUAL

SWVER -

REQUEST SOFTWARE VERSION

Remote Commands

EF200 Messages

Example

The SWVER command requests the software version of the EF200.

The followi ng commands can be sent by t he remote control device to mute or unmute the audio going to the remote end.

Remote Command Effects SWVER? Request the software version of the EF200.

The following message is sent by the EF200 in response to a SWVER? command, indicating its software version.

EF200 Message Message meaning SWVERx The software version is x.

In the following exampl e, the remote control de vice requests the software version of the EF200 with Device ID number 12.

Remote Command EF200 Message

A12SWVER? A12SWVER1.00.00

EF200 C

OMMAND SET REFERENCE

TONEE -

ENABLE/DISABLE ENTRY AND EXIT TONES

Remote Commands

EF200 Messages

The TONEE command enables or disabl es entr y and exit tones. Thes e are tone s which are sent to the AEC and remote ends when the phone is connected or dis connected. Entry and exit ton es are especially useful when auto answer or auto hangup are enabled. For exa mple, they can give an aud ible indication that the phone was picked up and didn’t just stop ringing.

The factory default setting for TONEE is 1 (on).

The following commands can be sent by the remote control device to enable or disable entry and exit tones.

Remote Command Effects

TONEE0 Disable entry and e xit tones. TONEE1 Enable entry and exit tones. TONEE2 Toggle entry and exit tones on and off. TONEE? Request status of entry and exit tones.

The followin g mess ages a re se nt by the EF200 in res ponse t o a TONEE? command, or in response to any TONEE command when acknowledgment mode is on.

Example

EF200 Message Message meaning

TONEE0 Entry and exit ton es are currently disable d. TONEE1 Entry and exit ton es are currently enabled.

In the following exampl e, the remote control de vice requests the entry and exit tone status of the EF200 with Device ID number 12. Then it enables entry and e xit tones on the same EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12TONEE? A12TONEE0 A12TONEE1 A12TONEE1

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EF200 U

SER MANUAL

TONER -

ENABLE/DISABLE RING TONES

Remote Commands

EF200 Messages

The TONER command enables or disables ring tones. Ring tones are sent to the AEC and remote ends when the EF200 detect s an inco ming ring on it s tele phon e line. This provides an audible indicati on to the users that the phone is ringing.

The factory default setting for TONER is 1 (on).

The following commands can be sent by the remote control device to enable or disable ring tones.

Remote Command Effects

TONER0 Disable ring tones. TONER1 Enable ring tones. TONER2 Toggle ring tones on or off. TONER? Request status of ring tones.

The followin g mess ages a re se nt by the EF200 in res ponse t o a TONER? command, or in response to any TONER command when acknowledgment mode is on.

Example

EF200 Message Message meaning

TONER0 Ring tones are currently disabled. TONER1 Ring tones are currently enabled.

In the following exampl e, the remote control de vice requests the ring to ne s tatus of the EF200 with Devic e ID number 12. Then it ena bles ring tones on the sam e EF200. Acknowledgment mode is enabled.

Remote Command EF200 Message

A12TONER? A12TONER0 A12TONER1 A12TONER1

EF200 C

OMMAND SET REFERENCE

CALLP# -

CALL PROGRESS MESSAGE

Remote Commands

EF200 Messages

The call progress message of the EF200 reports call progress tone s (ring, busy, dial tone, etc.) when they are detected. The remote control device may use this information to implemen t fea tures such as automatic dialling from the remote cont rol device.

The CALLP# is a message used by the E F200 to report the call progress tones detected dur ing the telephone call. It will not be recognized by the EF200 as a command.

The following messages are sent by the EF200 when it detects a call progress tone during a call. The call progress feature must be enabled (see the CALLP command) for these messages to be sent.

EF200 Message Message meaning

CALLP#01 Fas t busy (reorder) detected. CALLP#02 Busy signal detected. CALLP#03 Ring detected. CALLP#04 Dial tone detected.

Example

In the following exampl e, the remote control de vice receives call progress messages from the EF200 with Device ID numbe r 9. In this example, a number is tried twice . A dial tone is received each tim e be fore the number is dialed. The first time, a busy signal is received. The second time, the phone rings.

Remote Command EF200 Message

A09PHONE1 A09PHONE1

A09CALLP#04 A09DIAL5551212 A09DIAL

A09CALLP#02 A09PHONE0 A09PHONE0 A09PHONE1 A09PHONE1

A09CALLP#04 A09DIAL5551212 A09DIAL

A09CALLP#03

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EF200 U

SER MANUAL

CIDT, CIDN, CID#, CIDX -

The EF200 detects ca ller ID information and sends it to the remote control device between the first and s ec ond rings of an incoming call. As long as the caller ID feature is enabled (see the CID command on page 35(#) the EF200 will send these messages. The EF200 will eithe r send t hree sepa rate messages (CIDT, CIDN, and CID#) containing t he caller ID in form ation, or it will s end a singl e CIDX message indic ating that caller ID information was not received.

Remote Commands

EF200 Messages

These commands should not be sent to the EF200. They are only used as messages sent by the EF200 to contain the caller ID information.

The following mes sa ges are sent by th e EF200 bet ween the fir st and se cond ring of an incoming call, as long as caller ID is ena bled.

EF200 Message Message meaning CIDTmmddhhii Caller ID ti mestamp informa tion.

CALLER

INFORMATION MESSAGES

mm - two digit number representing the month. dd - two digit number repr es enting the day. hh - two digit number repr es enting the hour. ii - two digit number representing the minute.

Example

CIDNs Caller ID name information.

s - string up to 16 charac ters long, containing the caller’ s n ame.

CID#s Caller ID telephone number information.

s - string up to 16 charac ters long, containing the caller’s telephone number.

CIDX Caller ID informati on was not detected on this call.

In the following example, the EF200 with Device ID 06 sends caller ID informa tion to the remote control d evice. The call was received from ASPI Digital at 1:42 PM on July 30th. Caller ID is enabled.

Remote Command EF200 Message

A06RING!

A06CIDT07301342

A06CIDNASPI DIGITAL

A06CID#4048923200

A06RING! A06PHONE1 A06PHONE1

EF200 C

OMMAND SET REFERENCE

DTMF# - DTMF

Remote Commands

EF200 Messages

Example

DIGIT DETECTED MESSAGE

The DTMF# message occ urs w h en e ve r th e D TM F de te ct i on f eat u r e is en a bl ed, and the EF200 has detected that a DTMF digit has been dialed on the opposite end of the line. The DTMF decoder can detec t the digits 0-9, *, and #. The DTMF decoder will only send one digit at a time, immediately after it detect s it.

The DTMF# message is never used as a command, and will not be re cognized by the EF200 as one.

The following message is sent by the EF200 in when it detects that a DTMF di git has been dialed on the oppos ite end of the telephone li ne.

EF200 Message Message meaning DTMF#n DTMF digit n was detected.

In the following example, the EF200 with Device ID 22 sends a serie s of messages in response to the caller dialing “12*#”.

Remote Command EF200 Message

A22DTMF#1

A22DTMF#2

A22DTMF#*

A22DTMF##

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EF200 U

SER MANUAL

ERROR# -

ERROR MESSAGE

Remote Commands

EF200 Messages

Example

The error messages report errors that the EF200 encounters. These are usua lly command syntax errors. The errors are numbered, and the meaning of each error number is described below. Error messages are enabled or disabled with the ERROR command.

The ERROR# command should not be se nt to the EF200. It’s only used as a message from the EF200.

The following messages are sent by the EF200 when it has an error.

EF200 Message Message meaning

ERROR#01 Unknown command. ERROR#02 Invalid command data.

In the following exampl e, the remote control de vice tries to send a few invalid commands to the EF200 with Device ID 6. The EF200 returns an error message in response to each of these commands. Error messages are enabled.

Remote Command EF200 Message

A06CHEESE A06ERROR#01 A06PHONE@#$% A06ERROR#02

EF200 C

OMMAND SET REFERENCE

PONG -

DEVICE RESPONSE TO

Remote Commands

EF200 Messages

Example

PING

The PONG message is sent by the EF200 in response to a PING command. This can be used by the remote control de vi ce to fin d out what de vice IDs are used by E F200s. Also, see the PING command.

The EF200 will not recognize the PONG command. You should only send the PING command from a remote control device.

The following message is sent by the EF200 when the remote control device sends it a PING command.

EF200 Message Message meaning PONG Response to PING command.

In the followin g exa mple , the r emote co ntrol de vice s ends the PING co mmand to f i nd out what EF200s are on the bus. Two EF200s return a PONG message to announce their presence. Acknow l edgment mode is enabled.

COMMAND

Remote Command EF200 Message

A**PING A06PONG

A17PONG

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EF200 U

SER MANUAL

RING! -

INCOMING RING MESSAGE

Remote Commands

EF200 Messages

Example

The RING! message is sent each time the EF200’s tel ephone line rings. This message is enable d or disabled using the RING command. Als o, ring tones may be sent to the AEC and remote audio outputs (see TONER).

The RING! command is not processed by the EF200. The RING command can be sent to turn RING ! message s on or o ff .

The following mes sa ge is sent by the EF200 each time its phone line rings.

EF200 Message Message meaning RING! The telephone line just had an incoming ring.

In the following example, the EF200 with Device ID 6 reports two incoming rings to the remote contro l device. The user then picks up the phone, using the PHONE command. Acknowledgmen t mode is enabled.

Remote Command EF200 Message

A06RING!

A06RING! A06PHONE1 A06PHONE1

EF200 B

LOCK DIAGRAM

EF200 B

LOCK DIAGRAM

Hybrid

LEC

Noise Suppression

Caller ID

Call Progress

DTMF Detector

GAINP

Meter

To Phone

AEC

From

DTMF, Ring, Entry

HOLD

MUTEP,

PRIVACY

To AEC

GAINAAGC

Tone Generator

HOLD

REMCON

From

RemoteToRemote

DSP

From Phone

MUTER,

REMCON

Meter

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ONNECTOR PINOUTS

RS-232

15 11

LOGIC IN/OUT

EF200 U

SER MANUAL

RS-232 Port (9600 8-N-1)

The RS-232 port accepts a male DB-9 connector. Only pins 2, 3, and 5 are required by the EF200. Connect pins straight through (do not use null modem). 1 DCD; 2 TX; 3 RX; 4 DSR; 5 ground; 6 DTR; 7 CTS; 8 RTS; 9 No connection

Logic In/Out Port

The Logic In/Out port acce pts a mal e DB-15 connecto r. See “Using the Logic In/Out Port” on page 15 for more information about building a Logic In/Out controller.

ASPI BUS

TO LINE

EF400

INTERFACE

FROM

AEC

ASPI Bus

The ASPI Bus uses RJ45 conectors . These should be used with category five twisted-pair ca ble.

Telephone Line

To Phone and To Line take R J11 connec tors. Standard telephone cables can be used. The EF200 should be connected to a n a nalog t eleph one lin e, or an a nalog p ort from a PBX. Digital PBX lines should not be used.

EF400 Interface

The EF400 I n terface is not currently implemented. Do not connect anything to this port.

From AEC, To AEC, From Remote, and To Remote

These audio connectors accept a mini (3.5 mm) 3 conductor terminal block (provided). From left to right the conductors are, positive signal, negative signa l, and ground.

Power Supply Inpu t

The power supply input ac cepts a 5-pin DIN male connector. Only use power supply provided by ASPI Digi-

POWER

tal. 1 ground; 2 ground; 3 +5Vdc; 4 -15Vdc; 5 +15Vdc

Polycom EF200 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual