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Paradyne COMSPHERE 3825PLUS, User Manual

The Paradyne COMSPHERE 3825PLUS is a reliable and advanced communication system. For easy setup and troubleshooting, we offer a comprehensive Quick Reference Manual available for free download from our website. Get the most out of your product with this handy manual, always accessible at manualshive.com.

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E-1

3825-A2-GB30-40

January 1999

CCITT V.25bis Dialing Commands

and Responses

Overview

E-1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Call Request Commands

E-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Call Request with Number Provided (CRN)

E-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Call Request with Stored Memory Address Provided (CRS

)

E-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Call Response

E-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Call Failure Indication (CFI)

E-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Delayed Call Indication (DLC)

E-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Call Connecting (CNX)

E-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Call Answer Commands

E-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Incoming Call (INC)

E-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Disregard Incoming Call (DIC)

E-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Connect Incoming Call (CIC)

E-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Program Normal (PRN)

E-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Request List of Stored Numbers (RLN)

E-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

List Stored Number Response (LSN)

E-3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Command Response

E-4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Valid (VAL)

E-4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Invalid (INV)

E-4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Overview

CCITT V.25bis is an international dialing protocol that

permits direct and stored number dialing using DTEs in
either Asynchronous,bisynchronous, or HDLC operating
mode. The 3825Plus modem supports V.25bis request and
answer commands that initiate and cancel dialing,
program commands that allow you to create and enter
telephone numbers to memory, and list commands that
display all telephone numbers stored in directory
locations. As commands are entered from the DTE, the
3825Plus modem issues a response to the DTE which
indicates if the call failed or connected, or if the command
is valid or invalid.

The following section discusses those V.25bis

commands supported by the 3825Plus modem and the
responses to those commands. 

Tables E-1

 and 

E-2

 in the

Command Response section list the V.25bis command and
response and the analogous AT command.

NOTE

The 3825

Plus modem must be

configured for V.25bis dialing.
Refer to the &M

n or &Qn

commands listed in Chapter 4.

The character format for Asynchronous Dialing mode

is 7 data bits, even parity, and 1 stop bit.

The character format for bisynchronous Dialing mode

is 7 data bits, odd parity, and 1 stop bit.

The character format for HDLC Dialing mode can be

8 data bits, no parity, and 1 stop bit; 7 data bits, odd parity,
and 1 stop bit; or 7 data bits, even parity, and 
1 stop bit.

Character format is determined by the DTE. The

modem detects this format when an AT prefix is entered
from the DTE.

E

Summary of Contents for COMSPHERE 3825PLUS

Page 1: ...COMSPHERE 3825PLUS MODEM USER S GUIDE Document No 3825 A2 GB30 40 January 1999 ...

Page 2: ...ocations use one of the following methods Via the Internet Visit the Paradyne World Wide Web site at http www paradyne com Via Telephone Call our automated call system to receive current information via fax or to speak with a company representative Within the U S A call 1 800 870 2221 Outside the U S A call 1 727 530 2340 Trademarks All products and services mentioned herein are the trademarks ser...

Page 3: ...he applicable Safety Standards and regulatory requirements of the country in which it is installed If necessary consult with the appropriate regulatory agencies and inspection authorities to ensure compliance 7 Input power to this product must be provided by one of the following 1 a UL Listed CSA Certified power source with a Class 2 or Limited Power Source LPS output for use in North America or 2...

Page 4: ...COMSPHERE 3825Plus Modem C January 1999 3825 A2 GB30 40 Notices ...

Page 5: ...vance notice in order for you to make the necessary modifications in order to maintain uninterrupted service 6 If you experience trouble with this equipment please contact your sales or service representative as appropriate for repair or warranty information If the product needs to be returned to the company service center for repair contact them directly for return instructions using one of the f...

Page 6: ...ion of service in some situations Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical...

Page 7: ...a nominal frequency of 2280 Hz and may be connected to multipoint or point to point circuits The apparatus does not require signalling or otherwise use the frequency range 0 200 Hz No d c interaction is intended between the modem and the telephone network This apparatus may be directly connected to a speechband circuit or connected to a relevant branch system for speechband circuits Connection to ...

Page 8: ... When used near a radio or TV receiver it may become the cause of radio interference Read the instructions for correct handling Restrictions Due to JATE Japan Approvals Institute for Telecommunications Equipment regulations only 3 attempts to dial a number are permitted in a 3 minute period If a fourth attempt is made to dial the same number the modem returns the ERROR return code This restriction...

Page 9: ...825Plus Modem Installation Overview 2 1 3825Plus Modem Package 2 1 3825Plus Installation 2 2 DTE Connection 2 3 Dial Line Connection 2 3 2 Wire Leased Line Connection 2 3 Telephone Connection 2 3 AC Power Transformer Connection 2 3 Communications Software Installation 2 3 Modem Power Up 2 4 Selecting Factory Configuration Options 2 4 Recovering AT Commands 2 5 Initialization Strings 2 6 3 Fax Oper...

Page 10: ... A Result Codes Overview A 1 B Troubleshooting Overview B 1 Automatic Firmware Download B 5 C Technical Specifications D Pin Assignments EIA 232 E Pin Assignments D 1 JM8 to RJ11 Crossover Cable D 2 E CCITT V 25bis Dialing Commands and Responses Overview E 1 Call Request Commands E 2 Call Response E 2 Call Answer Commands E 3 Program Normal PRN E 3 Request List of Stored Numbers RLN E 3 List Store...

Page 11: ...Table of Contents iii 3825 A2 GB30 40 January 1999 F Country Specific Configuration Options Configuration Options by Country F 1 Glossary Index ...

Page 12: ...COMSPHERE 3825Plus Modem iv January 1999 3825 A2 GB30 40 This page intentionally left blank ...

Page 13: ...MSPHERE modem to access and control a remote 3825Plus modem Appendix A lists result codes produced by the modem Appendix B provides instructions for performing diagnostic tests when data communications problems occur and explains the Automatic Firmware Download process Appendix C lists the technical specifications of the 3825Plus modem Appendix D provides EIA 232 E and JM8 to RJ11 crossover cable ...

Page 14: ...COMSPHERE 3825Plus Modem vi January 1999 3825 A2 GB30 40 This page intentionally left blank ...

Page 15: ...ns and environments while also allowing control over modem configuration dialing and diagnostics The modem offers two preset factory configurations containing the most often used modem settings These factory presets provide quick configuration for any asynchronous or UNIX hardware based dial environment Features The 3825Plus modem has a wide variety of features including Dial Line Modulations ITU ...

Page 16: ... to 10 telephone numbers to directory locations Originate Security and three Answer Security modes Callback Security with telephone directory index or telephone number Two factory defined configurations and two user defined configuration areas 3825Plus Modem Front Panel and Status Indicators The front panel of the 3825Plus modem is equipped with 8 LEDs status indicators that monitor modem activity...

Page 17: ... transferring received data to the DTE OH APL green Off Hook Analog Private Line ON The modem is off hook and set for Dial Off The modem is on hook and set for Dial Slow Flashing Modem is set for Leased APL RD green Receive Data ON Received data is being transferred to the DTE SD green Send Data ON The modem is receiving data from the DTE to transmit TR green Terminal Ready ON The DTE has turned O...

Page 18: ...COMSPHERE 3825Plus Modem 1 4 January 1999 3825 A2 GB30 40 ...

Page 19: ...initialization strings for unique applications 3825Plus Modem Package After opening the modem s package check for damage and verify that the following items are present Quick Reference 3825Plus modem Power transformer One 6 position 4 wire modular cord If any hardware components are damaged notify your sales representative Return equipment using the procedures described in the Government Requireme...

Page 20: ...omputer or terminal should not exceed 50 feet if DTE data rates exceed 19 200 bps The rear panel of the 3825Plus modem Figure 2 1 has the following switches and connectors An ON Off power switch A power receptacle for ac power transformer A 25 pin DB 25 receptacle for your computer A 6 pin modular jack for external telephone set use only A 6 pin modular jack for dial PSTN lines or 2 wire leased li...

Page 21: ...ck labeled LINE Figure 2 1 2 Insert the other end of the modular cord into the leased line network interface Telephone Connection Use the following procedure to connect the modem to a single line or two line telephone Procedure 1 Insert the 6 position 4 conductor modular plug into the jack labeled PHONE 2 Insert the other end of the modular cord into the telephone AC Power Transformer Connection U...

Page 22: ...ions stored in memory If UNIX Dial Cellular Mobile or Cellular PSTN is more appropriate for your configuration then you must change the factory setting as described as follows NOTE If you have already changed certain configuration options you may have lost AT command control For example operating in Synchronous mode or disabling AT commands results in an inability to change configuration options T...

Page 23: ...ynchronous terminal or personal computer are listed in the following section Read through these procedures before performing a recovery 1 Turn the modem Off and then ON The modem performs a power up self test in which all LEDs light While this is running repeatedly press the A key of your DTE s keyboard or keep the key depressed if your keyboard automatically repeats characters that way Keep doing...

Page 24: ...end of an initialization string V 25bis Applications For V 25bis HDLC High level Data Link Control dial line operation create an initialization string with the following commands Note that the character format can be 8 data bits no parity and 1 stop bit 7 data bits odd parity and 1 stop bit or 7 data bits even parity and 1 stop bit TYPE AT F D1 S1 M234 W PRESS Enter For V 25bis bisync operation cr...

Page 25: ...dulations Before you can send or receive a fax the following must be true Your modem must be online with a compatible fax modem or fax machine You must have fax software installed on your computer You must have configured your modem according to the specifications of your fax software manual For example Some fax software requires that the modem have Auto Answer disabled You can set this with the A...

Page 26: ...COMSPHERE 3825Plus Modem 3 2 January 1999 3825 A2 GB30 40 ...

Page 27: ...switch to Data mode Data mode is a state where any entries made from the DTE are considered data and are transmitted and received between modems The modems remain in Data mode until the connection is broken or until they are forced into online Command mode using the escape sequence Switching Between Data Mode and Online Command Mode Sometimes it is necessary to change operating parameters while th...

Page 28: ...mmand string Commands must be entered on one line and end with the return character Enter key Commands with the suffix n have several options associated with them For example in the Ln command L1 sets the speaker volume to Low and L3 sets the speaker volume to High Omitting the suffix has the same effect as using a zero suffix for example ATX is equivalent to ATX0 The A command without pressing th...

Page 29: ...ompletion of a power up self test Refer to the Recovering AT Commands section in Chapter 2 for procedures and guidelines on this command A Repeat Last Command Reexecutes the last command string Not to be preceded with AT or followed by pressing the Enter key A Answer Mode Allows the modem to go off hook and attempts to establish a connection without waiting for a ring B ITU T Bell Mode Determines ...

Page 30: ...ugh a tandem PBX for example 9W555 6789 or when invoking special features for example 70 W555 6789 where 70 is the local telephone company command that disables Call Waiting R Reverse Dial mode Causes the originating modem to send out an answertone once it no longer detects ringback Ringback is the ring you hear at the originating site when making a call The R parameter must be the last character ...

Page 31: ... Allows you to change the value displayed by I0 I10 0 causes I0 to display 144 default I10 1 causes I0 to display 240 I10 2 causes I0 to display 480 I10 3 causes I0 to display 960 I10 4 causes I0 to display 120 I11 Displays the program memory checksum I17 Displays the last eight critical errors the first is the most recent Support personnel use only I19 Displays the entire firmware revision number...

Page 32: ...ords or as numeric codes Some DTEs do not recognize result codes as words therefore numbers are required The Numbers 2 format is required for some modem pooling applications Refer to Table A 1 for a list of result codes V V0 Displays result codes in Number 1 format digits V1 Displays result codes as text V2 Displays result codes in Number 2 format digits Xn Extended Result Code Dial Tone Detect an...

Page 33: ...ors for busy tone Yn Long Space Disconnect Determines the modem s response to a continuous spacing condition sent from the remote modem when it goes on hook Issuing a long space is one method of disconnecting a call Y Y0 Disable Ignores long space Y1 Enable Disconnects if long space is detected Enables transmission of a long space Zn Reset and Load Active Z Z0 Loads configuration options from Acti...

Page 34: ...ink When Disconnect LSD normally forced ON turns Off for approximately one second upon disconnecting C3 Follows DTR State of LSD follows state of DTR C4 Simulated Control Carrier State of LSD follows state of remote modem s RTS via V 13 simulated control carrier signaling Note that the remote modem s RTS Action configuration option must be set to Simulated Control Carrier C5 DTR Disconnect Off Sta...

Page 35: ... No Answer Timeout S7 120 No Carrier Disconnect S10 100 V 32bis Train S43 1 V 32bis Autorate S76 3 V 42 ARQ Window Size S89 9 Cellular Enhancements S91 1 If ETC is installed and your modem is attached to a normal dial telephone line but sometimes communicates with a modem that is attached to a cellular phone use the F6 command F6 Cellular PSTN sets the following configuration options AT Command Op...

Page 36: ... Set by F6 Use only with remote modems set to I99 and limit the data rate to 4800 bps S41 5 I100 Available only if ETC is installed Automatically adjusted according to the ETC1 1 specification NOTE The default and permitted settings of this option are country dependent See Appendix F Jn Dial Transmit Type Sets the power output level of the transmit signal over dial lines Overrides the I command J0...

Page 37: ... Q234 Modem operates in Synchronous mode and uses V 25bis HDLC dialing M235 Q235 Modem operates in Asynchronous mode and enables a subset of the AT T command set This is required for AT T DATAKIT dial out applications The M2 M231 through M235 Q2 and Q231 through Q235 commands disable the use of AT commands and force the modem into Dumb mode The only way to regain control of the modem is to recover...

Page 38: ... in Direct mode T2 Pattern Transmits and receives a 511 Bit Error Rate Test BERT The modem must be online and in Direct mode T3 Local Digital Loopback test The modem must be online and in Direct mode T4 Enables Receive Remote Loopback Response configuration option T5 Disables Receive Remote Loopback Response configuration option T6 Remote Digital Loopback test The modem must be online and in Direc...

Page 39: ...hanges do not take effect until a disconnect occurs An Where n is an ASCII value from 0 to 127 Factory default is 013 ASCII carriage return Bn BLn Modulation Data Rate Sets the modulation and maximum dial VF rate The same function can be performed with S register S41 the B and BL commands are provided for compatibility with environments where those commands are used The B300 and B1200 commands wor...

Page 40: ...ller value is specified it will default to 64 A A0 64 A1 128 A2 192 A3 256 A4 32 A5 16 F5 sets this to A4 Cn Error Control Negotiate Buffer Determines if the answering modem buffers the data that it received from the remote modem during an interval in which the modem attempts to establish a connection using error control Online changes to this configuration option do not take effect until a discon...

Page 41: ...ould enter Command mode when it receives a break character from the DTE Nn Error Control Mode Determines the type of error control used by the modem In most cases V42 MNPorBfr is the best choice If V 42bis and MNP are enabled then the modem uses the following priority for error control negotiation V 42bis V 42 MNP 5 and below Online changes do not take effect until a disconnect occurs N0 Buffer Mo...

Page 42: ...e increments Xn XON XOFF Passthrough Flow Control The way this configuration option functions depends on how the modem is configured for flow control When the modem is configured for XON XOFF flow control see Qn Flow Control of DTE this configuration option determines if flow control characters received from the local DTE will be passed on to the remote modem If configured for modem to modem flow ...

Page 43: ... Answer Ring Number Determines the number of rings the modem will count before automatically answering a call Enter zero 0 if you do not want the modem to automatically answer any calls Otherwise enter a value from 1 255 for the number of rings to count before answering Note that if disabled the modem can only answer with an ATA command The factory setting is 1 NOTE The default and permitted setti...

Page 44: ...nds The factory setting is 45 seconds NOTE The default and permitted settings of this option are country dependent See Appendix F S8 Pause Time for the Dial Modifier Determines how long in seconds the modem pauses when it encounters a comma in the Dial command string Enter a value from 0 255 seconds The factory setting is 2 seconds NOTE The default and permitted settings of this option are country...

Page 45: ...ngth of time in 10 millisecond increments the modem waits after receiving RTS before issuing CTS to the DTE Enter a value from 0 255 The factory setting is 0 milliseconds S38 DTR Continuous Repeat Determines whether automatic dialing of dial backup directory location 1 will be repeated continuously if unsuccessful or halted after the first pass NOTE A lockout from redialing occurs after the number...

Page 46: ... 1200 V 22 8 1200 212A invalid for UK 10 0 300 V21 11 0 300 103J invalid for UK 20 19 200 V 32terbo 21 16 800 V 32terbo 27 33 600 V 34 28 31 200 V 34 29 28 800 V 34 30 26 400 V 34 31 24 000 V 34 32 21 600 V 34 33 19 200 V 34 34 16 800 V 34 35 14 400 V 34 36 12 000 V 34 37 9600 V 34 38 7200 V 34 39 4800 V 34 40 2400 V 34 The factory setting is 33 600 V 34 S43 Train Time Register controls the modem ...

Page 47: ...400 V 34 34 12 000 V 34 35 9600 V 34 36 7200 V 34 37 4800 V 34 38 2400 V 34 NOTE Turn your modem off and on after setting S44 for the setting to take effect The factory setting is 33 600 V 34 S45 Leased Line Transmit Level Level determines the modem s transmit power output level over leased lines Enter a value from 0 15 dBm The factory setting is 0 dBm NOTE The default and permitted settings of th...

Page 48: ...of a remote access password Any value from 00 to 99 is valid For example if the remote access password is 12345678 then S56 12 The value of S56 is not affected by factory default templates S57 Remote Access Password Part 2 Register allows entry of the second pair of digits of a remote access password Any value from 00 to 99 is valid The value of S57 is not affected by factory default templates S58...

Page 49: ...le 8 msec 1 Enable 90 msec 2 Disable The factory setting is Enable 8 msec NOTE The default and permitted settings of this option are country dependent See Appendix F S66 NMS Call Messages Register determines if the modem sends information regarding status Call Progress and or sends summarized call statistics Call Connect to the dial network management system COMSPHERE 6700 Series NMS Register has ...

Page 50: ...quality Register has the following values 0 Enable 1 Disable 2 Start at 4800 bps V 32bis only 3 Start at 9600 bps V 32bis only The factory setting is enable S77 DTR Alarm Reporting Register determines whether an alarm is sent to the 6800 Series Network Management System controller when the DTR signal has been Off for more than 10 seconds Register has the following values 0 Disable 1 Enable The val...

Page 51: ...id and invalid AT commands The selections No ERROR and No Strap or ERROR permit installation into applications that are customized for a different modem Register has the following values 0 Normal 1 No ERROR The modem executes all valid commands ignores invalid commands and never issues an ERROR message 2 No Strap or ERROR The modem ignores all configuration commands but always issues an OK respons...

Page 52: ... the DTE computer data rate to be equal to the VF telephone line data rate Register has the following values 0 Disable 1 Enable The factory setting is Disable S91 Cellular Enhancements Valid only if ETC is installed Register determines whether parameters are set to improve performance over a cellular link Should be enabled when the remote modem is using a cellular connection Register has the follo...

Page 53: ...s 0 through 9 and the letters A through Z upper or lower case Up to 20 VF and DTE passwords can be stored in the password table in the memory of the 3825Plus modem Each password is indexed by a number 1 through 20 The index number is used when displaying or changing a password Originate Security An Originate Access password is entered by a local user to gain access to a local 3825Plus modem This p...

Page 54: ...Only Use commands like the following to configure the modem for DTE Only Security AT SA00000000 Provide Administration Password AT SD1 xyz789 Store DTE password in index location 1 ATS67 0 Set No Callback Security ATS68 1 Set DTE Only Security ATS70 0 Set No Originate Security ATS94 to ATS98 Set to preferred choices AT W Save settings ATZ9 Reset modem The user who dials this modem is prompted for ...

Page 55: ...Password is eight characters long The default password active after a SR command is issued is on the last page of this manual That page may be removed for security purposes The password is 00000000 when the modem is shipped SA pppppppp Change Administration Password Changes the Administration Password The new Administration Password must be eight characters long and is limited to the characters 0 ...

Page 56: ... a DTE password or a callback Directory or telephone number before disconnecting This S register affects Answer Security only The timer is reset for each phase of the access authorization process 0 10 seconds 1 20 seconds 2 40 seconds 3 60 seconds The factory setting is 20 seconds S95 VF Prompt Type Determines how the modem prompts the remote dialer to enter a VF password For Quiet Answer to work ...

Page 57: ...ered by the remote user Enter a value from 1 63 or 123 127 for the command end character The factory setting is 13 ASCII carriage return S98 DTE Password Backspace Character Determines ASCII value used as the backspace Backspace key when entering a password or Callback Directory Number This character moves the cursor to the left and erases the previous character Enter a value from 1 63 or 123 127 ...

Page 58: ...COMSPHERE 3825Plus Modem 4 32 January 1999 3825 A2 GB30 40 This page intentionally left blank ...

Page 59: ...remote modems S56 S59 Remote DCP access is accomplished using either the primary or secondary channel of the VF line Using the primary channel gives a much faster response time due to the higher data rate but it also interrupts data flow because primary data is stopped when Remote mode is active Once Remote mode is terminated the primary channel is automatically made available to data transmission...

Page 60: ... do not appear under the Test branch when using the secondary channel When using the primary channel the Test branch does not appear In the Control branch Make Busy is not available The Security Branch is not available Exit Remote replaces Remote on the local modem s LCD To return to local modem operation select ExitRem Any changes made to configuration options while using the Remote branch are no...

Page 61: ...99 Result Codes Overview A 1 Overview Table A 1 lists all the result codes 3825Plus modems may send to the DTE Result codes can be numeric or verbal terse or extended See the Qn Vn and Xn commands in Chapter 4 for more information A ...

Page 62: ...NE No dial tone detected 7 7 BUSY Busy or trunk busy signal detected 8 8 NO ANSWER No quiet answer 10 10 CONNECT 2400 Connection at 2400 bps 11 11 CONNECT 4800 Connection at 4800 bps 12 12 CONNECT 9600 Connection at 9600 bps 13 16 CONNECT 12000 Connection at 12 000 bps 14 13 CONNECT 14400 Connection at 14 400 bps 15 14 CONNECT 19200 Connection at 19 200 bps 16 15 CONNECT 7200 Connection at 7200 bp...

Page 63: ...ECT 19200 EC Connection at 19 200 bps with error control 30 30 CONNECT 57600 Connection at 57 600 bps 32 32 CONNECT 76800 Connection at 76 800 bps 34 34 CONNECT 115200 Connection at 115 200 bps 37 37 CONNECT 21600 Connection at 21 600 bps 38 38 CONNECT 24000 Connection at 24 000 bps 39 39 CONNECT 26400 Connection at 26 400 bps 40 40 CONNECT 28800 Connection at 28 800 bps 41 41 CONNECT 31200 Connec...

Page 64: ...00 EC Connection at 28 800 bps with error control 47 47 CONNECT 31200 EC Connection at 31 200 bps with error control 48 48 CONNECT 33600 EC Connection at 33 600 bps with error control 77 77 FORBIDDEN Forbidden number 78 78 DELAYED Delayed number Appears when the Extended Result Codes configuration option is set for Add EC If this configuration option is set for Add V42 MNP then V42b V42 MNP5 MNP4 ...

Page 65: ...er see the instructions at the end of this chapter If you would like to copy the software in your modem to a remote 3825Plus modem see the P command in Chapter 4 Table B 1 Modem Health Symptom Action Modem did not pass power up self test Contact the Customer Assistance Center 1 800 237 0016 Power LED does not light Make sure the modem s ON Off switch is in the ON position Make sure the ac power tr...

Page 66: ... 4 1 of 3 Modem VF Connection Symptom Action Modem does not receive a dial tone Attach the telephone directly to the wall outlet to verify that a dial tone exists Make sure the VF line is connected to the modem s rear jack labeled LINE Modem does not go off hook and answer an incoming call Verify that the Auto Answer Ring Count configuration option S register 0 is set to a value other than 0 disab...

Page 67: ...arriage return and line feed are used as command terminators If using V 25bis bisync verify that the correct character format uses two synchronous control characters and a start of text control character before the text block and an end of text control character after the text block Modem does not go off hook and begin dialing continued If using V 25bis HDLC verify that the correct character forma...

Page 68: ...opback test Abort the test disconnect the modular VF cord and restart the test Table B 5 Modem DTE Connection Symptom Action Modem does not accept or echo back AT commands Verify that the cable between the Async port of the DTE and the modem is a standard RS 232 cable If the cable is bad replace it Null modem cables also known as crossover cables do not work in this application Reload the Async Di...

Page 69: ... as a result your modem is stuck in fax mode Type ATE1V1 and press Enter The software should respond with an OK Try sending or receiving the fax again Automatic Firmware Download New releases may be available for the 3825Plus modem The latest 3825Plus firmware is available at no charge from the Automatic Firmware Download Center Refer to page A in the front of this document for contact information...

Page 70: ...COMSPHERE 3825Plus Modem B 6 January 1999 3825 A2 GB30 40 This page intentionally left blank ...

Page 71: ... ITU T V 32 9600 4800 bps ITU T V 22bis 2400 bps ITU T V 22 1200 bps ITU T V 21 300 bps Bell 212A 1200 bps Bell 103J 300 bps Leased Line Modulations ITU T V 34 33 600 31 200 28 800 26 400 24 000 21 600 19 200 16 800 14 400 12 000 9600 7200 4800 2400 bps V 32terbo 19 200 16 800 bps ITU T V 32bis 14 400 12 000 9600 7200 4800 bps ITU T V 32 9600 4800 bps ITU T V 22bis 2400 bps Fax Modulations ITU T V...

Page 72: ...100 Vac 10 50 60 Hz 115 Vac 10 60 Hz 220 Vac 10 50 Hz or 240 Vac 10 50 Hz POWER CONSUMPTION 6 watts typical including power transformer speaker off DIMENSIONS Weight Height Width Depth 1 3 pounds 0 59 kg not including power transformer 1 25 inches 3 0 cm 6 0 inches 15 cm 8 75 inches 22 cm TRANSMIT LEVEL Dial Line Leased Line Permissive 9 dBm through 32 dBm in 1 dBm increments 0 through 15 dBm in 1...

Page 73: ...A Circuit CCITT Signal Source Circuit Function 1 AA 101 Shield 2 TXD BA 103 DTE Transmit Data 3 RXD BB 104 DCE Receive Data 4 RTS CA 105 DTE Request to Send 5 CTS CB 106 DCE Clear to Send 6 DSR CC 107 DCE Data Set Ready 7 SG AB 102 Signal Ground 8 LSD CF 109 DCE Line Signal detect 15 TXC DB 114 DCE Transmit Clock 17 RXC DD 115 DCE Receive Clock 20 DTR CD 108 DTE Data Terminal Ready 22 R1 CE 125 DC...

Page 74: ...stantial difference in transmit levels permitted in the private line service and those permitted in the public switched network The industry standard is now an 8 pin keyed modular jack known as the USOC JM8 Bellcore Technical Reference TR EOP 000242 Issue 1 released May 1985 When ordering the installation of the USOC JM8 specify the appropriate wiring options 1 2 wire operations 2 4 wire operation...

Page 75: ... telephone numbers to memory and list commands that display all telephone numbers stored in directory locations As commands are entered from the DTE the 3825Plus modem issues a response to the DTE which indicates if the call failed or connected or if the command is valid or invalid The following section discusses those V 25bis commands supported by the 3825Plus modem and the responses to those com...

Page 76: ... the command was accepted by the modem Call Response includes Call Failure Indication CFI and Call Connecting CNX Call Failure Indication CFI The CFI response is issued to the DTE if the modem fails a CRN or CRS command CFI is similar to the AT result codes BUSY NO ANSWER NO CARRIER NO DIALTONE and ERROR The CFI response format is CFIxx Where xx is ET Engaged tone NS Number not stored CB Local DCE...

Page 77: ...ing call This command is only valid when the DTE issues a DIC command CIC must be issued within 10 seconds after sending a DIC CIC is similar to the ATA command The CIC command format is CIC If CIC is issued within 10 seconds the modem sends the VAL response to the DTE If CIC is issued after 10 seconds INV is returned Program Normal PRN The Program Normal PRN command allows the DTE to enter and st...

Page 78: ...he DTE INV is similar to the AT result code ERROR The INV response format is INVxx Where xx is CU command unknown MS message syntax error PS parameter syntax error PV parameter value error Table E 1 lists V 25bis commands supported by the 3825Plus modem Table E 1 V 25bis Commands V 25bis Command Description AT Command S Register Equivalent CALL REQUEST COMMANDS CRN Call Request with Number Provide...

Page 79: ...5Plus modem Table E 2 V 25bis Response Messages V 25bis Command Description AT Command Result Code Equivalent CALL RESPONSE CFI Call Failure Indication BUSY NO ANSWER NO CARRIER NO DIAL TONE ERROR CNX Call Connecting Indication CONNECT LIST RESPONSE LSN List Stored Number NONE COMMAND RESPONSE VAL Valid Command OK INV Invalid Command ERROR ...

Page 80: ...COMSPHERE 3825Plus Modem E 6 January 1999 3825 A2 GB30 40 ...

Page 81: ... modem has been approved for use in that country Consult your sales representative Each modem is shipped from the factory with a specific country code The ability to change the country code is not accessible to the user If the modem is approved for use in the country configuration options for the North America country code shown in Table F 2 are valid in Argentina Bahamas Bermuda Bolivia Brazil Br...

Page 82: ... ÁÁ ÁÁ VÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ V Á Á I ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 8 ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S0 8 ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ V Á Á I ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 10 ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S0 10 ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ...

Page 83: ...ÁÁÁÁÁÁÁ S7 90 ÁÁ ÁÁ I ÁÁ ÁÁ VÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I Á Á I ÁÁ ÁÁ I ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 120 sec ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S7 120 ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I Á Á I ÁÁ ÁÁ I ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S7 135 ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ ...

Page 84: ...ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ T3 ÁÁ ÁÁ VÁÁ ÁÁ FÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ F ÁÁ ÁÁ F ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 10 min ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ T10 ÁÁ ÁÁ VÁÁ ÁÁ VÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 30 min ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ T30 ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V...

Page 85: ...ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V Á Á Á V ÁÁ ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 10 dBm ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ I10 ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ F Á Á Á V ÁÁ ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 11 dBm ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ I11 ÁÁ ÁÁ VÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ F ÁÁ ÁÁ V ÁÁ ÁÁ F ÁÁ Á...

Page 86: ...ÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 10 dBm ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S45 10 ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V Á Á Á V ÁÁ ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 11 dBm ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S45 11 ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ ...

Page 87: ...Á ÁÁÁÁÁÁÁ 8 ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S0 8 ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 10 ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S0 10 ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ Dialer Type ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ Tone ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ T ÁÁ ÁÁ...

Page 88: ...ÁÁÁÁÁ S7 90 ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ F ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ I ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 120 sec ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S7 120 ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ V ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ I ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ I ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S7 135 ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ I ÁÁ ÁÁ ÁÁ V...

Page 89: ...ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ T3 ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V Á Á Á V ÁÁ ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 10 min ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ T10 ÁÁ ÁÁ VÁÁ ÁÁ VÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 30 min ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ T30 ÁÁ ÁÁ VÁ...

Page 90: ...ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 10 dBm ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ I10 ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ F ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V Á Á Á V ÁÁ ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 11 dBm ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ I11 ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ ÁÁ V ÁÁ ÁÁ...

Page 91: ...ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ F ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 10 dBm ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S45 10 ÁÁ ÁÁ FÁÁ ÁÁ VÁÁ ÁÁ V ÁÁ ÁÁ F ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ F ÁÁ ÁÁ V ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ 11 dBm ÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ S45 11 ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V ÁÁ ÁÁ V Á Á V ÁÁ ÁÁ V ÁÁÁÁÁÁÁÁÁ ÁÁ...

Page 92: ...COMSPHERE 3825Plus Modem F 12 January 1999 3825 A2 GB30 40 This page intentionally left blank ...

Page 93: ...andard Code for Information Interchange is a 7 bit code which establishes compatibility between data services ASCII is the standard for data transmission over telephone lines The ASCII code consists of 32 control characters nondisplayed and 96 displayed characters asymmetric rate In V 34 the ability of a device to transmit at a different rate than it receives Async Dial A factory preset configurat...

Page 94: ...A storage device used to compensate for differences in the data flow rate when transmitting data from one device to another byte A sequence of successive bits usually eight handled as a unit in data transmission CCITT An advisory committee Consultative Committee on International Telephone and Telegraph established by the United Nations to recommend communications standards and policies Now called ...

Page 95: ...pment also provides the signal conversion required for communication between the DTE and the telephone line A modem is a DCE DCP Diagnostic Control Panel The front panel of modems such as the 3810Plus or the shared controller of nest mount modems such as the 3811Plus The DCP permits control and configuration of local and remote modems demodulation The process of recovering data from a modulated ca...

Page 96: ...em can communicate with a fax machine or with another fax modem fax software A program or system of programs installed on a computer that allow a fax modem to send and receive facsimile images FCC Federal Communications Commission Board of Commissioners that regulates all interstate and foreign electrical communication systems that originate from the United States full duplex Simultaneous two way ...

Page 97: ...ng used Originate mode The modem is in a state where it is ready to transmit a call In a dial network it is the modem that makes the call In a leased line network it is one of two sides of the network that is selected to be the originating modem parity A way of checking data accuracy by counting the number of bits that have a value of one PBX Telephone switching equipment Private Branch Exchange d...

Page 98: ... type of transmission is more efficient than asynchronous transmission tone dialing One of two dialing methods in which telephone numbers are sent as tones across the telephone lines training A process where two modems try to establish a connection over the VF line UL Underwriter s Laboratories Inc UNIX Dial A factory preset configuration area containing the configuration options most often used i...

Page 99: ...r V 34 A standard for modems operating full duplex with asynchronous or synchronous data over dial networks PSTN or two wire leased lines at 33 600 31 200 28 800 26 400 24 000 21 600 19 200 16 800 14 400 12 000 9600 7200 4800 or 2400 bps V 42 CCITT standard for error control protocol V 42bis CCITT standard for data compression V 54 CCITT standard for local and remote diagnostic loopback tests VF V...

Page 100: ...COMSPHERE 3825Plus Modem Glossary 8 January 1999 3825 A2 GB30 40 ...

Page 101: ...ransmit Clock Source 4 13 Z Store Telephone Number 4 13 A Error Control Fallback Character 4 13 B Modulation Data Rate 4 13 4 15 C MNP5 Data Compression 4 14 SA Enter Administration Password 4 29 SA Change Administration Password 4 29 SB Set VF DTE Password 4 29 SD Set DTE Password 4 29 SP Display Password 4 29 SP Clear Password 4 29 SR Reset Security 4 29 SV Set VF Password 4 29 FCLASS Service Cl...

Page 102: ...n disconnected S88 4 25 saving AT W 4 12 selecting 2 4 viewing AT V 4 12 connect messages A 1 connect problems B 2 B 3 copy firmware to remote 4 8 CTS Control D 4 14 D Data mode 4 1 Data Rate B 4 13 data rates supported C 1 DATAKIT applications 2 6 4 11 Dial ATD 4 4 dial command modifiers 4 4 Dial Line Rate S41 4 20 Dial Stored Number ATDS 4 4 dial tone detect ATX 4 6 dial tone wait 4 4 dial line ...

Page 103: ...lation 3825Plus modem 2 2 software 2 3 ITU T Bell Mode B command 4 3 J JM8 to RJ11 crossover cable 2 3 D 2 L Leased Line Carrier On Level S48 4 21 Leased Line Rate 4 21 Leased Line Transmit Level S45 4 21 Leased Mode AT L 4 10 leased line connection 2 3 leased line problems B 2 LEDs front panel 1 2 Line Current Disconnect S65 4 23 load Active Operating area 4 7 LSD Control AT C 4 8 M menu tree rem...

Page 104: ... Line Current Disconnect 4 23 S66 NMS Call Messages 4 23 S67 Callback Security 4 30 S68 Answer Security 4 30 S69 Make Busy Via DTR 4 23 S70 Originate Security 4 30 S74 Network Position Identifier 4 24 S75 Network Management Address 4 24 S76 V 32bis Autorate Dial Line 4 24 S77 DTR Alarm Reporting 4 24 S78 V 32bis Automode 4 24 S80 No Data Disconnect Trigger Signal 4 25 S82 V 32bis Autorate Leased L...

Page 105: ... Character 4 23 V 29 Train On Data S92 4 26 V 32bis Automode S78 4 24 V 32bis Autorate Dial Line 4 24 V 32bis Autorate Leased Line 4 25 V 32bis Train S43 4 20 V 42 ARQ Window Size S89 4 26 V 42bis Compression AT H 4 7 VF and DTE security 4 27 VF password SV command 4 29 described 4 27 VF plus DTE password SB command 4 29 VF Prompt Type S95 4 30 VF Rate 4 20 4 21 VF rate 4 13 VF with DTE security 4...

Page 106: ...COMSPHERE 3825Plus Modem Index 6 January 1999 3825 A2 GB30 40 This page intentionally left blank ...

Page 107: ...00282600 ...

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