Paradyne 3825PLUS manual

COMSPHERE 3825 P LUS MODEM USER’S GUIDE Document No. 3825-A2-GB30-20 November 1996[...]

Y our modem needs a serial cable to connect it to your computer . One end must have a 25-pin plug, and the other end must have a socket that matches the modem port on your computer . This is a 25-pin or a 9-pin connector . Quick Installation for the COMSPHERE 3825 Plus Modem Plug the serial cable into your modem. Plug the serial cable into the seri[...]

COMSPHERE 3825 Plus Modem A November 1996 3825-A2-GB30-20 COMSPHERE 3825 Plus Modem User ’s Guide 3825-A2-GB30-20 3rd Edition (November 1996) Changes and enhancements to the product and to the information herein will be documented and issued as a new release or a limited revision of this manual. The 3825 Plus modem connects to the Public Switched[...]

Safety Instructions B 3825-A2-GB30-20 November 1996 Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2. Slots and openings in the cabinet are provided for ventilation. T o ensure reliable operation of the product and to protect it from overheating, these slots and[...]

COMSPHERE 3825 Plus Modem C November 1996 3825-A2-GB30-20 Notices  ?[...]

Safety Instructions D 3825-A2-GB30-20 November 1996 Government Requirements and Equipment Return Certain governments require that instructions pertaining to modem connection to the public switched telephone network be included in the installation and operation manual. Specific instructions are listed in the following sections. United States Notice [...]

COMSPHERE 3825 Plus Modem E November 1996 3825-A2-GB30-20 Canada Notice T o The Users Of The Canadian Public Switched T elephone Network The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements.[...]

Safety Instructions F 3825-A2-GB30-20 November 1996 United Kingdom Ringer Equivalence Number The Ringer Equivalence Number (REN) is a customer guide indicating approximately the maximum number of items of apparatus that should be connected simultaneously to the telephone line. The sum of the RENs should not exceed four . This value includes any BT [...]

COMSPHERE 3825 Plus Modem G November 1996 3825-A2-GB30-20 Japan Notices This equipment is in the 2nd Class category (information equipment to be used in a residential area or an adjacent area thereto) and conforms to the standards set by the V oluntary Control Council for Interference by Information T echnology Equipment aimed at preventing radio i[...]

i 3825-A2-GB30-20 November 1996 T able of Contents Preface Objectives and Reader Assumptions v . . . . . . . . . . . . . . . . . . . . . . . . . How to Use This Manual v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Documents v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. Introduction [...]

COMSPHERE 3825 Plus Modem ii November 1996 3825-A2-GB30-20 4. A T Commands and S-Registers Overview 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Modes 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Command Guidelines 4-2 . . . . . . . . . . . . . . . .[...]

T able of Contents iii 3825-A2-GB30-20 November 1996 E. CCITT V .25bis Dialing Commands and Responses Overview E-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Call Request Commands E-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Call Response E-2 . . . . . . . . . . . . . . . .[...]

v 3825-A2-GB30-20 November 1996 Preface Objectives and Reader Assumptions This manual describes how to install and operate the 3825 Plus modem. It is intended for all users of the 3825 Plus modem. How to Use This Manual Chapter 1 provides information about the 3825 Plus modem’ s hardware and software features, including the front panel and status[...]

1-1 3825-A2-GB30-20 November 1996 Introduction Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

COMSPHERE 3825 Plus Modem 1-2 November 1996 3825-A2-GB30-20 • High-speed transmission using asynchronous, synchronous, or UNIX devices over full- or half-duplex dial networks or 2-wire leased lines. • Support as a remote (tributary) device by the COMSPHERE 6700 or 6800 Series Network Management System. • Compatibility with COMSPHERE 3800 Plus[...]

Introduction 1-3 3825-A2-GB30-20 November 1996 T able 1-1 3825 Plus LEDs Label Color Indicates EC/SQ green Error Control/Signal Quality ON: The modem is in Error Control mode. Off: The modem is not in Error Control mode. Flashing; Predominantly ON: The modem is in Error Control mode and is receiving errors due to poor VF line signal quality . Flash[...]

2-1 3825-A2-GB30-20 November 1996 3825 Plus Modem Installation Overview 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3825 Plus Modem Package 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

COMSPHERE 3825 Plus Modem 2-2 November 1996 3825-A2-GB30-20 3825 Plus Installation Before installing your standalone modem, make sure your installation site is clean and well-ventilated. Allow space around the modem for installing cables and telephone cords, and make sure the modem is located within reach of the ac power outlet. The distance betwee[...]

3825 Plus Modem Installation 2-3 3825-A2-GB30-20 November 1996 DTE Connection Use the following procedure to connect the RS-232-E cable from the modem to the DTE: " Procedure 1. Make sure the modem’ s rear panel power switch is Off. 2. Connect the DB-25-P (male) connector on the cable to the DB-25-S (female) connector labeled COMPUTER (Figur[...]

COMSPHERE 3825 Plus Modem 2-4 November 1996 3825-A2-GB30-20 Modem Power-Up Once your modem is properly connected to the DTE, dial or leased lines, and ac outlet, press the modem’ s rear panel power switch to the ON position. The modem begins a power -up self-test in which all front panel LEDs momentarily light (note that this also occurs on a res[...]

3825 Plus Modem Installation 2-5 3825-A2-GB30-20 November 1996 NOTE When configuring your modem, keep a record of its configuration options as a future reference in case the modem must be replaced. To establish a connection with a remote modem, use the D (Dial) command. Refer to Chapter 4, A T Commands and S-Registers , for more information. Recove[...]

COMSPHERE 3825 Plus Modem 2-6 November 1996 3825-A2-GB30-20 3. T o save changes, use the &W command: TYPE: A T&W n Where: n is one of the following storage areas: 0 for Active (Saved) 1 for Customer 1 2 for Customer 2 PRESS: Enter The modem exits A T Recovery mode and returns to its previous application environment. Only the Active (Saved) [...]

3-1 3825-A2-GB30-20 November 1996 Fax Operation Overview 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fax Operation 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

4-1 3825-A2-GB30-20 November 1996 A T Commands and S-Registers Overview 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Modes 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

COMSPHERE 3825 Plus Modem 4-2 November 1996 3825-A2-GB30-20 T o enter online Command mode while in Data mode, enter the following sequence: TYPE: +++ Use the O command to return to Data mode from online Command mode. Enter the following command: TYPE: AT O PRESS: Enter Command Guidelines Review the following guidelines before using any A T Commands[...]

A T Commands and S-Registers 4-3 3825-A2-GB30-20 November 1996 T able 4-1 (1 of 14) 3825 Plus A T Commands ***  A T Command Recovery Mode Allows the modem to remain in Asynchronous data mode so that A T commands can be used to change the modem’ s current configuration. Use this command when A T commands are disabled or the modem is operating i[...]

COMSPHERE 3825 Plus Modem 4-4 November 1996 3825-A2-GB30-20 T able 4-1 (2 of 14) 3825 Plus A T Commands D n  Dial Begins the dialing sequence. The dial string n (modifiers and telephone number) is entered after the D command. Any digit 0–9, * , # , A, B, C, D, may be dialed as a DTMF tone. Only the digits 0–9 can be dialed in Pulse Dial mode[...]

A T Commands and S-Registers 4-5 3825-A2-GB30-20 November 1996 T able 4-1 (3 of 14) 3825 Plus A T Commands H n  Hook Switch Control Allows the modem to go of f-hook or on-hook. H, H0 Modem goes on-hook. H1 Modem goes of f-hook. I n  Identification Provides useful information when upgrading or servicing the product. I , I 0 Displays product co[...]

COMSPHERE 3825 Plus Modem 4-6 November 1996 3825-A2-GB30-20 T able 4-1 (4 of 14) 3825 Plus A T Commands Q n  Result Codes Result codes are informational messages (such as Connect and Ring) sent from the modem and displayed on the asynchronous DTE terminal. Refer to T able A-1 for a list of result codes. Q , Q0 Enables modem to send result codes [...]

A T Commands and S-Registers 4-7 3825-A2-GB30-20 November 1996 T able 4-1 (5 of 14) 3825 Plus A T Commands X n , continued Add/EC. If error control is negotiated, attaches the /EC suf fix to the CONNECT rate message. Add/V42,MNP . Attaches the V42b, V42, MNP5, MNP4, MNP3, MNP2, or NoEC suf fix to the CONNECT rate message. Use DTE Rate. Displays DTE[...]

COMSPHERE 3825 Plus Modem 4-8 November 1996 3825-A2-GB30-20 T able 4-1 (6 of 14) 3825 Plus A T Commands &&P1  Clone Remote Copies the firmware from the modem that receives the command to another 3825 Plus modem. The modem must be in Online Command mode. (Online Command mode is established with the +++ escape sequence.) The initial respon[...]

A T Commands and S-Registers 4-9 3825-A2-GB30-20 November 1996 T able 4-1 (7 of 14) 3825 Plus A T Commands &F n  Select Factory Default Configuration Options Loads factory configuration options into the Active (Operating) area. The &F5 and &F6 options invoke the Enhanced Throughput Cellular (ETC) feature. &F0 Async Dial &F3 U[...]

COMSPHERE 3825 Plus Modem 4-10 November 1996 3825-A2-GB30-20 T able 4-1 (8 of 14) 3825 Plus A T Commands & I n  Dial T ransmit Level for Cellular Auto When Dial T ransmit Level T ype is set to Permissive, & I n sets Dial T ransmit Level to a value between –10 and – 32 dBm. & I 99 and & I 100 causes the level to be varied auto[...]

A T Commands and S-Registers 4-1 1 3825-A2-GB30-20 November 1996 T able 4-1 (9 of 14) 3825 Plus A T Commands &M n or &Q n  Async/Sync Mode and DTE Dialer T ype Sets the modem for either asynchronous or synchronous operation and selects the type of dialing method the modem uses. &M, &M0, &Q, &Q0 Modem operates in Asynchron[...]

COMSPHERE 3825 Plus Modem 4-12 November 1996 3825-A2-GB30-20 T able 4-1 (10 of 14) 3825 Plus A T Commands &S n  DSR Control Data Set Ready (DSR) is a signal from the modem to the DTE indicating the modem is connected and ready for operation. &S, &S0 Forced On. Forces DSR output ON constantly . This is usually used for leased-line app[...]

A T Commands and S-Registers 4-13 3825-A2-GB30-20 November 1996 T able 4-1 (1 1 of 14) 3825 Plus A T Commands &X n  T ransmit Clock Source Determines the source of timing for synchronous data transmitted from the DTE. &X, &X0 Internal. Modem provides transmit clock source for synchronous data (Pin 15). &X1 External. Modem derives[...]

COMSPHERE 3825 Plus Modem 4-14 November 1996 3825-A2-GB30-20 T able 4-1 (12 of 14) 3825 Plus A T Commands %C n  MNP5 Data Compression Determines if the modem uses MNP Class 5 data compression. It can be set independently of V .42bis data compression. Online changes do not take ef fect until a disconnect occurs. %C, %C0 Disable. %C1 Enable. %SA, [...]

A T Commands and S-Registers 4-15 3825-A2-GB30-20 November 1996 T able 4-1 (13 of 14) 3825 Plus A T Commands K n  Buffer Control, Send Break Control, Break Forces Escape The K n command sets three configuration options simultaneously: Break Send Break Buffer Break Forces Control Control Escape K0 Discard Data Break First Enable K1 Discard Da[...]

COMSPHERE 3825 Plus Modem 4-16 November 1996 3825-A2-GB30-20 T able 4-1 (14 of 14) 3825 Plus A T Commands T n  No Data Disconnect Timer Forces the modem to disconnect if no data is transmitted or received within a specified amount of time. T , T0 Disable. T2 is the default for Denmark, and T3 is the default for France and Germany . See Appe[...]

A T Commands and S-Registers 4-17 3825-A2-GB30-20 November 1996 S-Register List S-registers affect the operating parameters of the 3825 Plus modem. These registers are applicable only when the DTE Dialer T ype configuration option is set for A T . (See &M n and &Q n commands.) S-registers can be displayed and/or modified when the modem is i[...]

COMSPHERE 3825 Plus Modem 4-18 November 1996 3825-A2-GB30-20 T able 4-2 (2 of 10) 3825 Plus S-Registers S4  Line Feed Character Determines ASCII value used as the line feed character . Enter a value from 0–127 for the line feed character . The factory setting is 10 (ASCII line feed). S5  Backspace Character Determines ASCII value used as th[...]

A T Commands and S-Registers 4-19 3825-A2-GB30-20 November 1996 T able 4-2 (3 of 10) 3825 Plus S-Registers S18  T est Timeout Sets the duration (in seconds) for the modem tests. This automatically cancels any test in progress after the time of this register expires. Any test can be manually canceled by issuing the escape sequence (+++) followed [...]

COMSPHERE 3825 Plus Modem 4-20 November 1996 3825-A2-GB30-20 T able 4-2 (4 of 10) 3825 Plus S-Registers S41  Dial-Line Rate Determines the modem’ s highest data rate and modulation scheme for operation on dial lines. S41 can also be set using the %B and %BL commands. Register has the following values (shown in bps): 1 = 14,400 (V .32bis) 2 = 1[...]

A T Commands and S-Registers 4-21 3825-A2-GB30-20 November 1996 T able 4-2 (5 of 10) 3825 Plus S-Registers S44  Leased-Line Rate Determines the modem’ s highest data rate and modulation scheme for operation on 2-wire leased lines in either Answer or Originate mode. Register has the following values (shown in bps): 1 = 14,400 (V .32bis) 2 = 12,[...]

COMSPHERE 3825 Plus Modem 4-22 November 1996 3825-A2-GB30-20 T able 4-2 (6 of 10) 3825 Plus S-Registers S49  T ransmit Buffer Disconnect Delay Determines the maximum amount of time the modem can continue to send data in its T ransmit Buffer to the remote modem after it is commanded by the DTE to disconnect. Register has the following values: 0 =[...]

A T Commands and S-Registers 4-23 3825-A2-GB30-20 November 1996 T able 4-2 (7 of 10) 3825 Plus S-Registers S63  V .25bis Idle Character Identifies to the modem the type of idle fill used by the DTE while in V .25bis mode. Register has the following values: 0 = Mark 1 = Flag The factory setting is Mark. S64  V .25bis New Line Character Identif[...]

COMSPHERE 3825 Plus Modem 4-24 November 1996 3825-A2-GB30-20 T able 4-2 (8 of 10) 3825 Plus S-Registers S74  Network Position Identification Register identifies each modem as either a control or tributary modem. Register has the following values: 0 = T ributary 1 = Control The factory setting is T ributary . S75  Network Management Address Re[...]

A T Commands and S-Registers 4-25 3825-A2-GB30-20 November 1996 T able 4-2 (9 of 10) 3825 Plus S-Registers S80  No Data Disconnect T rigger Signal Register determines whether Pin 2 (transmit data) or Pin 3 (receive data) of the modem’ s RS-232 serial interface is monitored so that the modem can disconnect the call if there is no activity for a[...]

COMSPHERE 3825 Plus Modem 4-26 November 1996 3825-A2-GB30-20 T able 4-2 (10 of 10) 3825 Plus S-Registers S89  V .42 ARQ Window Size Increase Register allows the V .42 Automatic Request for T ransmission (ARQ) window size to be set to a value from 6 to 15 frames to accommodate satellite delays. Register has the following values: 0 = Automatic Adj[...]

A T Commands and S-Registers 4-27 3825-A2-GB30-20 November 1996 Security Security configuration on the 3825 Plus modem is performed using the A T commands and S-registers in T able 4-3. Password T ypes Security in 3825 Plus modems is implemented with three basic types of passwords. There is one Administration Password which permits access to the pa[...]

COMSPHERE 3825 Plus Modem 4-28 November 1996 3825-A2-GB30-20 Callback Security Callback Security causes the responding modem to disconnect and call back to the phone number provided by the user at the originating modem. The user enters the number , when prompted by the remote modem, as a Directory location 1–10 preceded by the # sign, or as a com[...]

A T Commands and S-Registers 4-29 3825-A2-GB30-20 November 1996 User A dials this modem by following the phone number with a wait dial modifier and the VF password 12345678, and is not prompted for a DTE password. User B dials this modem by following the phone number with a wait dial modifier and the VF password 87654321, and is prompted for a DTE [...]

COMSPHERE 3825 Plus Modem 4-30 November 1996 3825-A2-GB30-20 T able 4-3 (2 of 3) 3825 Plus Security Commands S67  Callback Security Determines whether Callback Security is used. 0 = Disable 1 = Enable (not valid if S68=0) The factory setting is Disable. S68  Answer Security Determines whether and which type of Answer Security is used. 0 = No [...]

A T Commands and S-Registers 4-31 3825-A2-GB30-20 November 1996 T able 4-3 (3 of 3) 3825 Plus Security Commands S97  DTE Password T ermination Character Determines ASCII value used to indicate the end of a password or Callback Directory/Number entered by the remote user . Enter a value from 0–127 for the command end character . The factory set[...]

5-1 3825-A2-GB30-20 November 1996 Remote Access Overview 5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remote Access 5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

COMSPHERE 3825 Plus Modem 5-2 November 1996 3825-A2-GB30-20 NOTE If a connection is not established between a local COMSPHERE modem and a remote 3825 Plus modem, the LCD displays Remote Mode Fail – No Circuit . Press any key to return to the T op Level menu, and dial again. If the remote modem accepts the password and the entry is successful, the[...]

A-1 3825-A2-GB30-20 November 1996 Result Codes Overview A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview T able A-1 lists all the result codes 3825 Plus modems may send to the DTE. Result codes can be numeric or verbal, terse or extended.[...]

COMSPHERE 3825 Plus Modem A-2 November 1996 3825-A2-GB30-20 T able A-1 (1 of 3) Result Codes Numbers (1) Numbers (2) Word Description 0 0 OK Command executed 1 1 CONNECT Modem connected to line 2 2 RING Modem receiving a ring voltage from the VF line 3 3 NO CARRIER Modem lost or does not detect carrier signal, or does not detect answer tone 4 4 ERR[...]

Result Codes A-3 3825-A2-GB30-20 November 1996 T able A-1 (2 of 3) Result Codes Numbers (1) Description Word Numbers (2) 17 17 CONNECT 16800* Connection at 16,800 bps 19 1 CONNECT 300* Connection at 300 bps 20 10 CONNECT 2400/ EC*** Connection at 2400 bps with error control 21 11 CONNECT 4800/ EC*** Connection at 4800 bps with error control 22 12 C[...]

COMSPHERE 3825 Plus Modem A-4 November 1996 3825-A2-GB30-20 T able A-1 (3 of 3) Result Codes Numbers (1) Description Word Numbers (2) 43 43 CONNECT 21600/ EC*** Connection at 21,600 bps with error control 44 44 CONNECT 24000/ EC*** Connection at 24,000 bps with error control 45 45 CONNECT 26400/ EC*** Connection at 26,400 bps with error control 46 [...]

B-1 3825-A2-GB30-20 November 1996 T roubleshooting Overview B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic Firmware Download B-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

COMSPHERE 3825 Plus Modem B-2 November 1996 3825-A2-GB30-20 T able B-2 Online Operation Symptom Action Data scrambled or unreadable V erify that the character format (data bits, parity , and stop bits) is set to the same value in both modems. Missing data during a transfer V erify that you are using the same method of flow control for both the mode[...]

T roubleshooting B-3 3825-A2-GB30-20 November 1996 T able B-4 (2 of 3) Modem – VF Connection Symptom Action Modem goes of f-hook, answers, but does not connect (continued) V erify that originating modem supports your modem’ s modulation schemes. The 3825 Plus modem recognizes V .34, V .32 terbo, V .32bis, V .32, V .22bis, V .22, V .21, Bell 212[...]

COMSPHERE 3825 Plus Modem B-4 November 1996 3825-A2-GB30-20 T able B-4 (3 of 3) Modem – VF Connection Symptom Action Modem establishes and disconnects a call Y ou may have a poor VF connection. Disconnect and dial again. disconnects a call The remote modem may have encountered an EC Disconnect, where the modem is configured to establish a call us[...]

T roubleshooting B-5 3825-A2-GB30-20 November 1996 T able B-6 Fax Operation Symptom Action Modem cannot send or receive a fax Make sure that your fax software is correctly installed. receive a fax Check your fax software to see if there is an Answer mode or Receive Fax setting that must be enabled. Sections of your fax are missing This often indica[...]

C-1 3825-A2-GB30-20 November 1996 T echnical Specifications T able C-1 (1 of 2) Model 3825 Plus T echnical Specifications Specifications Description APPROV ALS Refer to the label on your modem or contact your local sales representative. COMP A TIBILITY AND VF DA T A RA TES Dial-Line Modulations Proprietary V .34 (33,600, 31,200 bps) ITU-T V .34 (28[...]

COMSPHERE 3825 Plus[...]

D-1 3825-A2-GB30-20 November 1996 Pin Assignments EIA-232-E Pin Assignments D-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . JM8 to RJ1 1 Crossover Cable D-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EIA-232[...]

COMSPHERE 3825 Plus Modem D-2 November 1996 3825-A2-GB30-20 JM8 to RJ1 1 Crossover Cable For 2-wire leased-line connections to a JM8 network interface, an 8-position to 6-position crossover cable (see Figure D-1) must be used according to the following FCC requirements: ‘ ‘The RJ series of jacks should not be used for connecting data equipment [...]

E-1 3825-A2-GB30-20 November 1996 CCITT V .25bis Dialing Commands and Responses Overview E-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Call Request Commands E-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

COMSPHERE 3825 Plus Modem E-2 November 1996 3825-A2-GB30-20 Call Request Commands Call Request commands are issued from the DTE to the modem and are responsible for initiating any dial calls. Call Request commands include Call Request with Number Provided (CRN), Call Request with Stored Memory Address Provided (CRS). Call Request with Number Provid[...]

CCITT V .25bis Dialing Commands and Responses E-3 3825-A2-GB30-20 November 1996 Call Connecting (CNX) The CNX response informs the DTE that the modem has connected to the remote modem. CNX is similar to the A T result code CONNECT . The CNX response format is CNX. Call Answer Commands Call Answer commands disable or enable the modem’ s AutoAnswer[...]

COMSPHERE 3825 Plus Modem E-4 November 1996 3825-A2-GB30-20 Command Response A Command Response indicates that the command entered was a valid or invalid entry . Command Response includes V alid (V AL) and Invalid (INV). V alid (V AL) The V AL response indicates that the modem has accepted the V .25bis command issued by the DTE. V AL is similar to [...]

CCITT V .25bis Dialing Commands and Responses E-5 3825-A2-GB30-20 November 1996 T able E-2 lists V .25bis response messages supported by the 3825 Plus modem. T able E-2 V .25bis Response Messages V .25bis Command Description A T Command/Result Code Equivalent CALL RESPONSE CFI Call Failure Indication BUSY , NO ANSWER, NO CARRIER, NO DIAL TONE, ERRO[...]

F-1 3825-A2-GB30-20 November 1996 Country-Specific Configuration Options Configuration Options by Country F-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Configuration Options by Country T able F-1 shows configuration options whose validity or default values vary according to country c[...]

COMSPHERE 3825 Plus Modem F-2 November 1996 3825-A2-GB30-20 T able F-1 (1 of 4) Configuration Options by Country Strap Description DCP Selection AT Command Belgium Denmark Finland France Germany Japan Netherlands North America Norway Singapore Sweden Switzerland T urkey United Kingdom Auto Answer Ring Number Disable S0=0 V V V V V V V V[...]

Country-Specific Configuration Options F-3 3825-A2-GB30-20 November 1996 T able F-1 (2 of 4) Configuration Options by Country Belgium United Kingdom T urkey Switzerland Sweden Singapore Norway North America Netherlands Japan Germany France Finland Denmark AT Command DCP Selection Strap Description NoAnswer T imeout 30 sec S7=30 I I V I I V I V V V [...]

COMSPHERE 3825 Plus Modem F-4 November 1996 3825-A2-GB30-20 T able F-1 (3 of 4) Configuration Options by Country Belgium United Kingdom T urkey Switzerland Sweden Singapore Norway North America Netherlands Japan Germany France Finland Denmark AT Command DCP Selection Strap Description Dial TX Level (& I n , &J n ) PERMISSV (–9) &J0 I [...]

Country-Specific Configuration Options F-5 3825-A2-GB30-20 November 1996 T able F-1 (4 of 4) Configuration Options by Country Belgium United Kingdom T urkey Switzerland Sweden Singapore Norway North America Netherlands Japan Germany France Finland Denmark AT Command DCP Selection Strap Description Leased TX Level 0 dBm S45=0 I I I I I I I F I I I I[...]

Glossary-1 3825-A2-GB30-20 November 1996 Glossary Active (Operating) A configuration area containing configuration options currently in use by the modem. When a power cycle occurs, a reset is performed, or a save is issued, this area is updated with the contents of Active (Saved). Active (Saved) A nonvolatile configuration area containing the most [...]

COMSPHERE 3825 Plus Modem Glossary-2 November 1996 3825-A2-GB30-20 automode T o change modulations or rates within a modulation when modems first connect. A modem may automode to a different modulation than what it is configured for due to the limitations of the remote modem, or automode to a lower rate due to unfavorable VF line conditions during [...]

Glossary Glossary-3 3825-A2-GB30-20 November 1996 Customer 1 A user-defined configuration area containing customized configuration options for a specific application. Customer 2 A user -defined configuration area containing customized configuration options for a specific application. data bank An area within the modem used to store the modem’ s f[...]

COMSPHERE 3825 Plus Modem Glossary-4 November 1996 3825-A2-GB30-20 DTMF Dual T one Multi-Frequency . DTMF tones are the sounds produced by pressing the keys of a T ouch T one phone, or by dialing a number with a modem using the A TDT n command. EIA Electronic Industries Association. This organization provides standards for the data communications i[...]

Glossary Glossary-5 3825-A2-GB30-20 November 1996 leased line A private line connection exclusively for the user . No dialing is necessary . LED Light-Emitting Diode. A light or status indicator on the DCP that glows in response to the presence of a certain condition (e.g., Alrm). local analog loopback The modem’ s transmit VF signal is looped to[...]

COMSPHERE 3825 Plus Modem Glossary-6 November 1996 3825-A2-GB30-20 register A part of the modem’ s memory that contains values that determine the modem’ s operating characteristics. remote loopback A test that sends a signal to the remote modem to test the local modem, the remote modem, and the circuit between them. result code An asynchronous [...]

Glossary Glossary-7 3825-A2-GB30-20 November 1996 V .32bis A standard for modems operating full-duplex with asynchronous or synchronous data over dial networks (PSTN) or leased lines at 14,400, 12,000, 9600, 7200, or 4800 bps. V .32 terbo A proprietary standard for modems operating full-duplex with asynchronous or synchronous data over dial network[...]

Index-1 3825-A2-GB30-20 November 1996 Index Symbols ! (hook flash), 4-4 “,” dial modifier (Pause), 4-4 “,” Pause T ime (S8), 4-18 “;” (return to command mode), 4-4 @ (quiet answer), 4-4 Numbers 3825Plus modem A T commands, 4-2 description, 1-1 features, 1-1 operating modes, 4-1 S-registers, 4-17 A A/ (Repeat Last Command), 4-3 ac power [...]

COMSPHERE 3825 Plus Modem Index-2 November 1996 3825-A2-GB30-10 X (Extended Result Code, Dial T one Detect, Busy T one Detect), 4-6 Y (Long Space Disconnect), 4-7 Z (Reset and Load Active), 4-7 A T&T exclusive dialing, 2-6 auto-answer problems, B-2 Automatic Firmware Download Center , B-5 automode (S78), 4-24 autorate S76 Dial Line, 4-24 S82 Le[...]

Index Index-3 3825-A2-GB30-20 November 1996 E echo command, 4-4 EIA-232-E cable, 2-1 EIA-232-E pin assignments, D-1 Enhanced Throughput Cellular (ETC), 4-9, 4-10 Entry W ait Time (S94), 4-30 equipment provided by customer , 2-1 equipment supplied, 2-1 error codes (result codes), A-1 Error Control Fallback Character (A T%A), 4-13 Error Control Mode [...]

COMSPHERE 3825 Plus Modem Index-4 November 1996 3825-A2-GB30-10 P P (Pulse dial), 4-4 part numbers, 2-1 password Administration, 4-27 deletion (%SP=), 4-29 display (%SP), 4-29 DTE (%SD), 4-29 entry attempt limit, 4-30 entry wait time, 4-30 Originate Access, 4-27 Remote Access, 4-22 types, 4-27 VF (%SV), 4-29 VF plus DTE (%SB), 4-29 VF Prompt T ype,[...]

Index Index-5 3825-A2-GB30-20 November 1996 self-test A T&T9, 4-12 failure, B-1 power-up, 2-4 Send Break Control (A TK), 4-15 serial number , 4-5 speaker on/off, 4-5 speaker volume, 4-5 status indicators, 1-2 stop test (A T&T0), 4-12 Straps When Disconnected (S88), 4-25 synchronous leased-line applications, 2-6 T T (T one dial), 4-4 techni[...]