User's Manual V34bis Fax-modem - AJ 2885 P User's Manual V34 Fax-modem - AJ 2885P P/N 8000 601 953 Revision 01 Sales, Ma CXR SA Rue de 28410 A Tel : 33 Fax : 3 Sales, manufacturing and R&D Center : CXR SA Rue de l'Ornette - 28410 Abondant - France Tél 33 (0) 237.62.88.00 - Fax 33 (0) 237.62.88.01 TECHNIC Technical support: 33 (0) 237.62.88.04 WEB Site: http://www.cxr.
User's Manual V34bis Fax-modem - AJ 2885 P Notice No part of this document may be reproduced, transmitted, copied out or translated without prior written consent of CXR SA. All rights reserved. Copyright 2005, CXR SA, printed in France, June 2005. The only purpose of this manual is to provide information and installation instructions CXR reserves the rights to improve its products and specifications without notice.
User's Manual V34bis Fax-modem - AJ 2885 P Important Information Conformity Statement EC Manufacturer name: CXR Manufacturer address: rue de l'Ornette - 28410 ABONDANT – France Product name: AJ 2885 P This equipment was design to comply with the ETSI – CTR.21 standard. It is intended to connect to the Public Switched Telephone Network.
User's Manual V34bis Fax-modem - AJ 2885 P Desktop AJ 2885 P – xxM : The power cord is the main switching element. Thus the mains outlet must be installed close to the equipment and provided easy access. In order to comply with the safety regulations, it is imperative to use the accessories (power supply and cables) provided with the equipment. When access to the inside of the modem is necessary, it is imperative to disconnect the power cord from the mains outlet.
User's Manual • V34bis Fax-modem - AJ 2885 P V24-V28 or RS232 • V11 compatible with X21 and V35 though configuration jumpers (except FT model) • Data rates : 300 to 115,200 BPS in asynchronous mode, and 1200 to 33,600 BPS in synchronous mode.
User's Manual V34bis Fax-modem - AJ 2885 P Product range The AJ 2885 modem has various options: • Dial-up • Leased line • Group III fax • Stand alone or rack • LCD front panel These different versions are summed up in the following table. The names in the first column will be used throughout the manual to indicate when these options apply. Metallic enclosure. LCD version Versions : Options : 2 / 4 wire leased line Dial backup and real time clock 14.4 KBPS – Cl.2 G.
User's Manual V34bis Fax-modem - AJ 2885 P AJ 2885 features The AJ 2885 is a modem for the professional user. It encompasses a number of features that place it above the rest. It includes features such as: • Configuration through front panel LCD and key pad: for synchronous application, the 2885 SDV can be fully set up from its user friendly front panel. • Busy-Out: Whenever modems are pooled, a faulty modem will lock-up the rest.
User's Manual V34bis Fax-modem - AJ 2885 P Contents 1. INTRODUCTION ......................................................................................................10 1.1. 1.2. 1.3. THE MODEM .......................................................................................................10 THE MODEM-FAX ................................................................................................10 CALLING MODES DIALING......................................................................
User's Manual 5.6. 5.7. 5.8. 5.9. 5.10. 5.11. CONFIGURATION OF THE SYNCHRONOUS MODE ................................................... 31 AUTOMATIC DIALING DIRECTORY ......................................................................... 32 LEASED LINE ...................................................................................................... 32 V23 AND BELL 202 T MODES ON LEASED LINE ................................................... 33 SAVING USER CONFIGURATIONS ...........................
User's Manual 1. V34bis Fax-modem - AJ 2885 P Introduction This chapter is to familiarize the user with the operation of a modem. Note: indicates that the user must press the return key after a command sequence. 1.1. The modem A modem is a device that allows two terminals (DTE, PC...) to communicate via a telecommunication line (phone line). The data is converted by the modem into electrical signals adapted to the telecommunication network. This conversion is called modulation and demodulation.
User's Manual V34bis Fax-modem - AJ 2885 P The answer is carried out automatically if the command ATS0 = 2 was sent to the modem by the local PC. A training sequence is then initiated. A training sequence is the hand-shake sequence between modems to establish a communication link. It establishes speed, modes... 1.4. Leased line A leased line is a permanent communication link dedicated between two modems. This kind of link is used for: • High usage, • Secure communications, • Privately managed networks.
User's Manual V34bis Fax-modem - AJ 2885 P These functions are described in chapter 4 of this manual. Some of the extra functions are: • Storage of phone numbers, • Forced V24 signals, • Exchange of a password between two modems ("Answer Back"), • Pre-qualification of the telephone line, • Storage of user modem configuration.
User's Manual V34bis Fax-modem - AJ 2885 P 2. Installation 2.1.
User's Manual V34bis Fax-modem - AJ 2885 P SDM version + alarm relay option: 230V ALARM or Industrial Equipment LL Power On: When the modem is connected, switch the power switch to the "On" position. (*) Power supply DC adapter or Power supply cable. 2.2.
User's Manual V34bis Fax-modem - AJ 2885 P K3-J8 : Busy-out J9-J21 : V11 / V28 J6 : DUMB SW5 Sandwich Installation: See rack operation manual to install your modem. Find an empty location in the rack and insert the AJ 2885 card into its card guide.
User's Manual V34bis Fax-modem - AJ 2885 P Power On: Inserting the modem card connects it to the power supply of the rack. Power-on is carried out by the power switch located at the rear of the rack. Make sure the front panel screws are well fixed onto the chassis so that the modem card is well connected to the AMS back plane. 2.3. Switch and Jumper settings 2.3.1. Dumb mode : J6 jumper When set in the ON position, this jumper disables the AT and V25Bis commands.
User's Manual 2.4. V34bis Fax-modem - AJ 2885 P Power-up self-test When the modem is turned on, an automatic self-test is performed, which tests: • Its stored memory • Its program memory • Its data processing unit • Its data memory The test lasts a few seconds and ends with a series of: • Different tones if the test is ok, • The same tone if a failure is detected. This failure is stored in the S19 register or detailed by the ATi7 command. See chapter 6 "Troubleshooting".
User's Manual 3. V34bis Fax-modem - AJ 2885 P Operation The modem operation is usually controlled through its terminal interface that connects to a computer or a terminal, and through a set of AT commands. On the computer (a PC for example), start a communication software such as the Windows HyperTerminal (HyperTerminal and Windows are trade marks of their respective owners).
User's Manual V34bis Fax-modem - AJ 2885 P 4. Front panel operation 4.1. Operating modes This chapter describes the operation of the six LEDs front panel version of 2885 modem. 4.1.1. Operating modes The modem can operate in one of the four following modes: 1. IDLE MODE: • The modem enters the idle mode after powering up if it passes its power-up self test. Beeps announcing the end of the test can be heard unless the speaker is turned off (see corresponding command).
User's Manual V34bis Fax-modem - AJ 2885 P The following table list these functions: LED DTR (Data Circuit 108 Function Indicates that the data terminal equipment connected to the Terminal modem is ready for data communication. Ready) On if DTR is set or fllashing if DTR-108 is not set. Bad Eprom checksum during self test. DSR/RI (Data 107/125 Flashes when an incoming ring is received (125/RI). Remains Set Ready/Ring lighted permanently when connecting.
User's Manual 4.1.4. V34bis Fax-modem - AJ 2885 P Configuration Select Holding MODE for more than 10 seconds will initiate a hardware reset. If the switch is still pressed after some beeps are heard at power-up, the modem will enter configuration mode. The front panel LEDs DTR, DSR, CD and LINE indicate which configuration the user can select.
User's Manual 4.2. V34bis Fax-modem - AJ 2885 P Configuration through front panel LCD and keypad This chapter describes states of the front panel lights and operation of the LCD and keypad. 4.2.1. The four LEDs indicate the state of the modem LED DSR/Ri Circuit Function 107/125 Flashes when an incoming ring is receiving (125-Ri). On leased line, the Originate modem flashes 10 times per second and the Answer one 4 times per second, when waiting for carrier.
User's Manual 4.2.3. V34bis Fax-modem - AJ 2885 P Three keys operation ↵ ENTER : This key validates the displayed choice or option, according to the following examples: Case 1 PRESS ENTER FOR CONFIG CHANGE Enter branches to the configuration sub-menus. Case 2 CHANGE ? VISUAL DISPLAY Enter branches to the AT display parameter submenus. Case 3 COMMAND ECHO ON > OFF Enter selects the new value of the parameter located on the right of the « > » symbol.
User's Manual 4.2.4. V34bis Fax-modem - AJ 2885 P Example How to store a phone number in the phone book as would this AT command: • • • • • AT&Z3:CXR:FOX:33237:::A Number 3 in the phone book (range 0 to 99), « CXR » is the name field, « FOX » is the password field, LINK and CONFIGURATION fields are both left blank, « A », attributes means this number is dialed from the front panel or from the DTE interface (DTR, 108-1).
User's Manual V34bis Fax-modem - AJ 2885 P # On display Press the key 8 PO3:--NAME-- ↵ no character is displayed on the ↵ validate a field on a cursor: ENTER key validates this blank cursor field and initiate next field editing CXR_ Comments 9 PO3:--PASSWORD--? Just like steps 5 to 8, press : ↵ once to start editing, ↓ to get « F », then ↵ (« F- ») ↓ to get « O », then ↵ (« FO- ») ↓ to get « X », then ↵ (« FOX- ») ↵ to validate « FOX », as the password and access to the next field of this number
User's Manual 5. V34bis Fax-modem - AJ 2885 P Configurations This chapter describes commonly used configurations through the AT command set: These commands may be used as part of software drivers for example. The same configuration can be achieved through the LCD and keypad front panel. Refer to the LCD menu description in chapter 2.5. 5.1.
User's Manual V34bis Fax-modem - AJ 2885 P Modem speed can be controlled thanks to the following commands. Asynchronous and Synchronous modes : modem can provide a synchronous or asynchronous interface to the terminal Synchronous mode : DTE speed is the same as the DCE speed, i.e. the terminal speed might change upon connection from configuration speed. Asynchronous mode : DTE speed does usually not depend on DCE speed, it is a constant rate interface.
User's Manual V34bis Fax-modem - AJ 2885 P CONFIGURATION PARAMETER (38,400 BPS) CONNECTION RESULT Autobaud Async / Sync Mode DCE sped DCE speed DTE speed @A1 : ON &M1 : Sync Do not care Do not care 33600 33600 (1) @A2 : DTE &M1 : Sync Do not care @M15: 28800 28800 28800 (1) @A0 : OFF @A1 : ON &M0 : Async *M1 : normal Do not care 33600 38400 (2) *M2 : auto *M3 : exclusive @A1 : ON &M0 : Async *M0 : direct Do not care 33600 33600 (3) @A2 : DTE &M0 : Async *M1 : normal @M4 : 9600 9600 38400 (4) @A0 : OFF *M2
User's Manual V34bis Fax-modem - AJ 2885 P default factory configuration. The autobaud must be changed to select a special speed. It can be limited to the DTE autobaud - AT @A2 - which means that the modem still recognises the terminal data format and speed but does not change the connection rate. Or it can be disabled - AT @A0 - which means that both the DTE data format and speed, and connection mode are selected by Commands.
User's Manual V34bis Fax-modem - AJ 2885 P The status page 3 details all information on DTE and modem speeds, data format, parity, synchronous or asynchronous mode (answer to the AT&S3 command). 5.4. Asynchronous or synchronous mode : The AJ 2885 distinguishes the command and the connection modes : The command mode is defined by the AT @V command : asynchronous AT (@V1), asynchronous V25 Bis (@V2), V25Bis HDLC (@V3), V25 Bis BSC (@V4) or disabled (@V0). The connection mode is defined synchronous (&M1).
User's Manual 5.5.2. V34bis Fax-modem - AJ 2885 P Flow control: Through Xon-Xoff : : AT *LG1 generates a local Xon-Xoff, AT *LR1 answers to the local Xon-Xoff These commands are the original AJ commands.
User's Manual (2) V34bis Fax-modem - AJ 2885 P Whenever the DTE terminal issues the clock should the modem be set for external clock (&X1). Frequency accuracy of the DTE clock must be compatible with the modulation. In case the terminal may issue a permanent data flow even out of connection could the DUMB mode be set to avoid any spurious commands or escape to command mode sequences. Either set the DUMB jumper on the modem board or use the @V0 command.
User's Manual V34bis Fax-modem - AJ 2885 P After this leased line configuration is saved by the AT&W command, the modem will start training on leased line if : • it is reset by ATZ or by a power restart, • the front panel button is pressed. For V34 mode of connection, better disable the V8 preamble by the command : @OM1 Automatic Dial Backup : the master or Originate modem is in charge of initiating the dialup connection if case of leased line failure.
User's Manual • • • V34bis Fax-modem - AJ 2885 P transmission is controlled by RTS : &R2 or &R3 parameter Transmission acknowledgement is provided by CTS : %C1 parameter Carrier detection (remote modem signal) is provided by CD : &C1 parameter Half duplex reversal delay : this delay is set by the S26 register • • expressed in Nx10 ms for connection without 75 BPS return channel (case 2 and 3 of the previous picture) with a minimal value of 8 i.e.
User's Manual V34bis Fax-modem - AJ 2885 P Boucle 3 AT&T1 ........................................ start the test CONNECT 19200 ................................ Connect message ABCDE................................................. characters sent by the terminal +++....................................................... escape to command mode OK AT&T0..................................................
User's Manual V34bis Fax-modem - AJ 2885 P 6. Security and memory 6.1. Principles The modem contains three types of memory: The FLASH-EPROM, where factory configuration is stored permanently, The RAM, where the modem configurations are stored temporary, The NVRAM where semi-permanent data is stored even when the modem is turned off. The first time your modem is turned on, or after a complete reset, these three memories are identical and set to the default factory configuration.
User's Manual 6.3. V34bis Fax-modem - AJ 2885 P Answerback security This security mode is controlled by the answering modem, and depends on a password exchange which authorizes a modem connection, i.e.: Calling modem ATDxxx Answering modem Training "AC24Y" (for example) ring ENQ () "AC24Y" control process If the answerback matches the one stored in memory within two seconds after an ENQ code was sent by the answering modem, access is granted. Otherwise the modem disconnects automatically.
User's Manual 6.4.2. Dial number callback. V34bis Fax-modem - AJ 2885 P request The remote user may provide the callback number after password control. Example: HERE N 3132 THERE N 4142 ATS0=2 AT%SB1 ATD4142 ATS0=2 AT%SA1 AT&Z3:ICI:MOBILE::: Dialing Training Password? « MOBILE » Callback number ? 3132 Disconnect Dial (3132) Training Modems are connected 6.5. Inactivity password The modem asks for a password when no data passes through it for a presented delay.
User's Manual V34bis Fax-modem - AJ 2885 P 7. Specifications 7.1.
User's Manual 7.2.2. V34bis Fax-modem - AJ 2885 P Answering a Call When the modem is set in answer mode, it will go off hook after 2 rings (if the command ATS0=2 is sent). This is in conformity with CCITT V25bis recommendation. 7.2.3. Connection - Disconnection In calling mode, the modem will automatically recognize the remote modem modulation type and adapt correspondingly.
User's Manual V34bis Fax-modem - AJ 2885 P +FRH Receive T30 command mode +FCERROR Error code 7.4.5.
User's Manual 8. V34bis Fax-modem - AJ 2885 P Troubleshooting Problem: This chapter lists most modem operating problems. Problem No tone when modem is turned on Single and continuous tone when modem is turned on Check Connection to the mains On/Off switch in On position Power supply of the rack and fuse of the card (rack version), DTR indicator on or flashing Send commands: AT&W255 ATZ Then restart the modem to see if the same continuous tone is heard. See Ati7 section below.
User's Manual V34bis Fax-modem - AJ 2885 P 9. Appendix A - V24 signals 9.1. V24 – V28 interface Pin number 1 2 3 4 5 6 7 8 10 (*) 12 15 Name TXD RXD RTS CTS DSR GND CD Si SPD SCT 17 18 20 21 22 24 SCR TB3 DTR DB2 RI SX 25 TEST CCITT number 101 Earth protection 103 Data transmission 104 Data reception 105 Request to send 106 Clear to send 107 Data set ready 102 Signaling earth 109 Carrier detect 117 Dial backup indicator High speed indicator 114 Time basis for signal elements at transmission.
User's Manual 9.2. V34bis Fax-modem - AJ 2885 P V11-V35 interface: The AJ 2885P (except FT model) modem provides a terminal interface configurable in V28 or V11 through the J12 to J21 jumpers. The jumpers in position 1-2 set a V28 signal. In position 2-3 they set a V11 signal. To allow any V11 signal (mixed V28 and V11 signals), the J9 jumper must be set in position 23. The following picture describes the confirmation of the interface.
User's Manual 9.3.
User's Manual 9.4. V34bis Fax-modem - AJ 2885 P V35 Adaptation Cable An X21 adaptation cable can be designed according to the following cabling matrix : Broche DB25M 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 A D25M –M34 reference : Signal V35 101 – P.GND 103 A – TXD A 104 A – RXD A 105 – RTS 106 – CTS 107 – DSR 102 – S.
User's Manual 9.5. 9.6. 9.7.
User's Manual 10. V34bis Fax-modem - AJ 2885 P Appendix B - Country specific information UK Although this equipment can use either loop disconnect or DTMF signalling, only the performance of the DTMF signalling is subject to regulatory requirements for correct operation. It is therefore strongly recommended that the equipment is set to use DTMF signalling for access to public or private emergency services. DTMF signalling also provides faster call set up.
User's Manual 11. V34bis Fax-modem - AJ 2885 P Appendix C – General conditions of guaranty Material and software are guaranteed by CXR manufactures, for one year after the date of delivery, under the following conditions: 1. The material and software guaranty : Guaranty will only apply if the guaranty coupon is returned to CXR within a delay of one month after the delivery 2.
