Page 2 - TRADEMARKS USED IN THIS MANUAL
1 FCC Information FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if notinstalled and used properly, that is, in strict accordance with the manufacturer’sinstructions, may cause i...
Page 3 - Table of Contents; Specifications; Setup; Modem Setup Options
2 Modem 34336 Table of Contents 1.0 Specifications .....................................................................................6 2.0 Quick Start ..........................................................................................8 2.1 Installation ........................................
Page 4 - General Operation and Special Features; Reset; Backup
3 Table of Contents 3.3.1 V.42 Error Correction Options .............................................35 3.3.2 Dialer Mode ...........................................................................41 3.3.3 Data Format Options .............................................................42 3.3.4 Disc...
Page 6 - Table of Conents; Appendix A: DB25 Pin Assignments
5 Table of Conents 7.6 Diagnostic Monitoring: Status Screens .................................115 7.6.1 EIA Status Screen .................................................................115 7.6.2 Other Status Screens.............................................................116 7.7 Local Modem Di...
Page 7 - fallback at 14.4 Kbps and lower
6 Modem 34336 1.0 Specifications Available Configurations — Stand-alone or rack-mount Compatibility — V.29 9600, 7200, 4800 V.32 terbo 19.2 or 16.8 kbps V.33 14.4 or 12.0 kbps V.32 bis 14.4, 12.0, 9.6, 7.2, or 4.8 kbps V.32 9.6 or 4.8 Kbps V.34+ 33.6, 31.2, 28.8, 26.4, 24, 21.6, 19.2,16.8, 14.4, and...
Page 10 - For all applications:
9 2.0 Quick Start • If you are operating the Modem in a manual dial mode, you also need a standard telephone set. 2.1.4 C ONNECTIONS Figure 2-1 shows how the Modem is connected to the computer or terminal, AC power supply, phone lines, and handset. Do not install the modem more than 50 feet (15.2m) ...
Page 11 - For dialup applications:; Do not bundle the telephone and RS-232 cables together.; NOTE; Do not bundle the telephone and RS-232 cables together.; • If you are connecting frame ground to signal ground.
10 Modem 34336 For dialup applications: • Use the supplied two-conductor crossover cable to connect the Modem to the telephone-line modular wall jack. Plug the eight-pin connector(RJ-45) of the cable into the rear-panel jack labeled TX DIAL. Then,plug the six-pin connector (RJ-12) into the telephone...
Page 12 - . For a detailed explanation of the front panel; Chapter 3; FRONT PANEL
11 2.0 Quick Start 2.2 Front-Panel LCD and Controls To select a Quick Setup configuration, you will need to use the pushbuttonsand liquid-crystal display (LCD) on the modem’s front panel. These featuresare shown in Figure 2-2 . For a detailed explanation of the front panel controls, see Chapter 3 . ...
Page 13 - D TR MR RS CS
12 Modem 34336 2.2.2 EIA S TATUS S CREEN The EIA status screen indicates the operational status of the Modem as wellas the condition of certain EIA RS-232 leads. The abbreviations that mayappear are identified below. Typically, only a few of these abbreviationswill be displayed during actual operati...
Page 14 - Modem Setup Options; A Q; Press pushbutton 2. Screen 1 of the QUICK SETUP menu appears:
13 2.0 Quick Start 2.3 Quick Setup To set up the Modem for immediate use (or to quickly change the modem’sconfiguration for an alternate mode of operation), select one of the factory-preset Quick Setup configurations (see Table 2-1). Your Modem will be readyfor operation. You will not need to make f...
Page 15 - All options for each Quick Setup configuration are listed in; Appendix B; If you want to customize your Quick Setup configuration, see; Setup Options; -WIRE DIAL HAYES EMULATION MODE—; ASYNCHRONOUS—; SYNCHRONOUS BIT ORIENTED—; -WIRE DIAL DUMB MODE—
14 Modem 34336 All options for each Quick Setup configuration are listed in Appendix B . If you want to customize your Quick Setup configuration, see 3.0, Modem Setup Options . For Hayes ® mode options, see 5.0, Hayes Emulation Mode . Table 2-1. Available Quick Setup Configurations. QUICK SETUP IDEN...
Page 17 - Solving; Hayes Emulation Mode; . To dial a telephone number in Hayes mode,; AT D; on your computer or terminal keyboard, followed by the number
16 Modem 34336 2.4 Basic Operation This section provides basic information for each of the modem’s primaryoperating modes. If you encounter difficulty, refer to Section 2.5, Problem Solving . 2.4.1 2-W IRE D IAL (H AYES ) M ODE (Q UICK S ETUP 1) Two-Wire Dial (Hayes) mode is the factory-default conf...
Page 18 - D TR MR RS CS TD
17 2.0 Quick Start Dialing Mode . The default dialing mode is tone dialing. To change to pulse dialing, insert a P after AT D : AT DP To change from pulse dialing to tone dialing, insert a T after AT D : AT DT The specified dialing mode remains active until the alternate mode isspecified or the mode...
Page 19 - V.25 bis commands can be entered from the DTE keyboard. Example:; CFI NT; result code; Synchronous V.25 bis Operation
18 Modem 34336 For V.25 bis operation, the Modem must be configured to use the same dataprotocol as the attached DTE. V.25 bis mode operation and commands areexplained in detail in Chapter 6.0, V.25 bis Audodialer . Asynchronous V.25 bis Operation. The data format of the DTE should be set to 7 data ...
Page 20 - Appendix D; information on Dumb-mode operation, refer to; Operation and Special Features; After the Quick Setup for 2-Wire Dial; Originating a Call from the Front Panel.; Before you can originate a call from
19 2.0 Quick Start 2.4.3 2-W IRE D IAL (D UMB ) M ODE (Q UICK S ETUP 5) Dumb mode is used primarily for manual call origination, answer-onlyapplications, and in conjunction with certain dial back security systems thatutilize MI/MIC signals to place the modem on-line. (If you need to configurethe mod...
Page 21 - Autodialing the Stored Number; . To autodial the stored number from; Terminating a Data Call.; Normal termination of a data call is processed; Chapter 4; FAILURE MESSAGE; D TR MR RS CS TD
20 Modem 34336 Autodialing the Stored Number . To autodial the stored number from the EIA status screen, press the following pushbuttons in sequence: ENT Pushbutton 3 (to select DIAL from MAIN MENU screen 1) Pushbutton 1 (to select DIAL from the AUTO-DIAL screen) When the local modem successfully es...
Page 23 - Beginning with the section titled; Answering a Call Automatically; all information in
22 Modem 34336 2.4.5 V.33 L EASED -L INE O PERATION (Q UICK S ETUP 10) V.33 operation is available on the Modem at speeds of 12,000 and 14,400 bps.V.33 leased-line operation provides compatibility with V.33 modems(synchronous operation only). A 4-wire line must be used (conditioned or unconditioned)...
Page 24 - • The modem must be configured for use with a 4-wire line.; local and remote modem.
23 2.0 Quick Start 2.4.7 4-W IRE L EASED L INE V.29 M ODE (Q UICK S ETUP 13) The 4-Wire Leased Line V.29 Mode configures the modem for V.29operation, for compatibility with V.29 modems. Keep these guidelinesin mind when using this mode: • The modem must be configured for use with a 4-wire line. • Op...
Page 25 - TR MR RS CS TD
24 Modem 34336 2.4.8 V.29 F AST M ASTER AND S LAVE M ODES (Q UICK S ETUPS 14 AND 15) In multidrop operation, the master modem transmits to all of the slave(remote) modems. When the DTE at a slave site recognizes its own address inthe polling protocol, it raises RTS to the slave transmitter. The slav...
Page 26 - command to suppress result codes for incoming calls.; Quality Screen; Compromise Equalizers; in
25 2.0 Quick Start 2.5 Problem Solving If you encounter difficulties in setting up or using the modem, try theremedies described below. If you suspect a system malfunction, follow thediagnostic procedures described in Chapter 7. If you cannot resolve theproblem, call your supplier. 1. A LL M ODES Ma...
Page 27 - This page is intentionally left blank.
26 Modem 34336 NOTE This page is intentionally left blank.
Page 28 - Modem Setup Options; Methods For Selecting Options; Quick Setup —; the easiest way to set up the Modem. Quick Setup; Chapter 2; ) automatically sets all options according; Front-panel selection —; the easiest and most commonly used method for; • Summary Setup —; the fastest way to selectively change options. All; Appendix C
27 3.0 Modem Setup Options 3.0 Modem Setup Options 3.1 Methods For Selecting Options The Modem allows you to easily select options for tailoring the modem’soperation to suit a particular application. You can be select options in thefollowing ways: • Quick Setup — the easiest way to set up the Modem....
Page 29 - Selecting Options from the Front-Panel; LCD; Use the left arrow and right arrow pushbuttons to; Numbered Pushbuttons; . To exit from a displayed screen, press the ENT
28 Modem 34336 3.2 Selecting Options from the Front-Panel 3.2.1 P USHBUTTONS AND THE LCD Options are selected from the front panel by pressing the front panelpushbuttons (Figure 3-1). The possible choices for each option are shownon the liquid crystal display (LCD) and on the flow chart at the back ...
Page 30 - TYPE LINE SPEED
29 3.0 Modem Setup Options NOTE If you have selected a Quick Setup or have changed certain optionssettings, pressing the ENT pushbutton to exit the SETUP menu willcause the modem to reset. 3.2.2 H OW T O S ELECT O PTIONS Options are configured from the SETUP menu. To access the SETUP menu, press the...
Page 32 - Returning to the EIA Status Screen; . The factory default settings are
31 3.0 Modem Setup Options Press pushbutton 3 to select SPKVOL(speaker volume). The SPEAKERVOLUME screen is shown right. The currently selected setting flashes. Press pushbutton 2 to switch thevolume setting to MEDIUM. MEDIUM begins to flash, indicating the newselected setting (although the new sele...
Page 33 - The default settings for each option are listed in; The Line Type options are available for all modes:; To select speed matching, refer to; . Follow the instructions given
32 Modem 34336 The default settings for each option are listed in Appendix B . The Quick Setup options (one for each operating mode) affect the entiremodem configuration. See Chapter 2 . The Line Type options are available for all modes: • 2-WIRE DIAL — for dialup applications. • 2W-LL — for leased-...
Page 34 - Table 3-1. Effect of Speed Limit Settings on Data Rate
33 3.0 Modem Setup Options Table 3-1. Effect of Speed Limit Settings on Data Rate MAX RATE DIALER SETTING, bps OPTION RESULTANT DATA RATE, bps LEASED LINE MODES 14,400 1 xx 14,400 1 12,000 1 xx 12,000 1 9600 xx 9600 300 to 4800 xx 4800 EIA-CTRL xx 9600 or 4800 2 DIAL MODES—ANSWERING 300 to 14,400 1 ...
Page 35 - CTS; headings later in this chapter.
34 Modem 34336 • V.32. The Modem normally uses the V.32 handshake. (The Modem also uses this handshake for V.32/14,400 bps operation.) • V.33. V.33 operation is available on the Modem for 4-wire leased line synchronous operation only. The available data rates are 14,400 and12,000 bps. Either of thes...
Page 36 - • The modem that the Modem is communicating with must be equipped
35 3.0 Modem Setup Options 3.3.1 V.42 E RROR C ORRECTION O PTIONS The Modem supports both CCITT V.42 error correction and MicrocomNetworking Protocol ® (MNP ® ) error correction (classes 1 through 5). V.42 and MNP provide end-to-end error correction through an automaticrepeat-transmission request al...
Page 42 - Dialer Modes; The; • ASYNCHRONOUS —; Data is transmitted and received in the character; • SYNCHRONOUS —; If this option is selected, data must be transmitted
41 3.0 Modem Setup Options The V.25 bis Dialer Modes are available for V.25 bis mode. Any of the selections from the DIAL V25bis screen will enable the V.25 bisautodialer. For detailed information on the V.25 bis autodialer, see Chapter 6. The three selections on the DIAL V25bis screen allow you to ...
Page 44 - Character Disconnect; Line Current Disconnect; RTS Disconnect
43 3.0 Modem Setup Options 3.3.4 D ISCONNECT O PTIONS When the modem is operating in V.25 bis or Dumb mode, it is necessary todisconnect the modem from the telephone circuit once communications arecompleted. The most common form of disconnection is by dropping the DataTerminal Ready (DTR) signal fro...
Page 45 - affect; REMOTE TEST
44 Modem 34336 3.3.5 T EST O PTIONS The Test Options affect certain tests (as explained below) but do not activate tests. The DSR During Analog Loopback is available for all modes. When ON is selected, the Data Set Ready signal is forced on when the modem is inthe analog loopback test mode. In gener...
Page 53 - or
52 Modem 34336 • Enable — The Modem will check for X-ON/X-OFF (DC1/DC3) flow control characters received from the remote modem to determinewhether to stop or start/restart data transmission to the remote modem.A DC3 (or DC2) control character will cause the Modem/Modem 3242–Sto stop data transmissio...
Page 54 - Annex; The T1 Timer option (
53 3.0 Modem Setup Options The 208 Phase Detection option is for 208 mode. • Normal — Conditions the modem’s 208 receiver for normal modulation detection. • Compensated — Conditions the 208 receiver for compensated modulation detection for improved performance with older 208 modems. The A nswer Tone...
Page 55 - Chapter 7; Phone Number Storage; Chapter 5; DEC CTRL INC
54 Modem 34336 4.0 General Operation and Special Features This chapter describes the following Modem features and operationalmodes (listed here in the order in which they are presented): • Quick reset • Dumb mode and Bell 208 operation • Phone number storage • Security operation • Leased Line Auto-R...
Page 56 - General Operation and Special Features; Recovery Select option) on both communicating modems.
55 4.0 General Operation and Special Features If a number has been previously stored, the number is displayed on the topline of the LCD (instead of dashes, as shown above). Only one phone number can be stored per cell. To store a phone number,use the right and left arrow pushbuttons to go to the dig...
Page 57 - Wait 30 seconds for dial tone before proceeding.
56 Modem 34336 Table 4-1. Dialing Control Characters. Character Function A-D Used in some PBX applications (tone dialing only). L Links a phone number to another number to be dialed as an alternate. T Sets tone-dialing mode. P Sets pulse-dialing mode. R Configures modem for Dial Line Auto-Recovery. ...
Page 58 - Leased Line Auto-Recovery Select; option determines the type of Leased; Manual Recovery; DIAL BACKUP
57 4.0 General Operation and Special Features 4.3.1 A UTODIAL B ACKUP The Modem automatically dials the stored number to connect over the backupline if it detects poor signal quality (ER) or a loss of carrier detect (CD) on theleased line. The criteria used by the Modem in assessing the condition of...
Page 59 - If both modems are set for; , the originate unit is used to; Return From Leased Line Auto-Recovery; option determines the criteria; The Test option setting must be the same on both units.
58 Modem 34336 NOTE If DIAL IF BAD >> (1, 2, 3 or 4) min is selected, the Select option settingof the answer unit must be equal to or less than the Select option of theoriginate unit. If both modems are set for Manual Recovery , the originate unit is used to autodial the number stored via the ...
Page 60 - If you need assistance, see; Dial Line Auto-Recovery; is not enabled until you select DIAL from the front; DEC CTRL INC
59 4.0 General Operation and Special Features Recovery from the front panel, enter the phone number to be dialed followedby /R (the Dial Line Auto-Recovery command) on the PHONE screen(shown below). If you need assistance, see Section 4.2 . An alternate way to configure the Modem for Dial Line Auto-...
Page 61 - Dumb Mode And Bell 208 Operation; Chapter 6; lists dialing parameters
60 Modem 34336 4.5.1 D IALING A S TORED N UMBER DTR dialing allows you to set up the Modem to automatically dial a storednumber even when the autodialer is not enabled. To enable DTR dialing, select DTR from the DIALER option screen. WhenDTR dialing is enabled, an OFF-to-ON transition of DTR causes ...
Page 62 - D TR MR RS CS
61 4.0 General Operation and Special Features place the handset back on the cradle. The LCD displays the status of thecommunication. It appears as shown below. The data link between the two modems is now established, and data transferbegins. An incoming call may be answered manually or automatically...
Page 63 - Modem Security Operation; • A remote modem calls the local Modem.
62 Modem 34336 4.7 Modem Security Operation In 2-Wire-Dial Hayes emulation mode only, the Modem can be configured toprovide security on incoming calls. Remote users attempting to connect to theModem are required to enter a password. Incoming calls are accepted only ifthe user enters a valid password...
Page 64 - COMMAND; administrative
63 4.0 General Operation and Special Features The modem’s security configuration for password protection is controlledfrom the DTE by a special set of password commands. The commands areimplemented by using the Hayes AT &Z command to store them in memory.If an administrative password is implemen...
Page 65 - Establishing or changing the administrative password.
64 Modem 34336 Rules for using passwords and password commands are listed below. • Memory locations 0 and 2-9 may be used for storing phone numbers; locations 2-9 may be used to store passwords. • The entire command string, including the AT &Z command, cannot exceed 40 characters. • Passwords an...
Page 66 - Programming security callback operation.
65 4.0 General Operation and Special Features 2.Unlocking the &V and &Z commands. If an administrative password is implemented, the Hayes compatible &V and &Z commands cannot be accessed unless they are first unlocked using the current administrativepassword. (&V is used to view ...
Page 67 - Passwords may be stored only in memory locations 2 through 9.; Programming a response to a correct password.; The /U command and message can be stored only in memory location 0.; Control through a rack controller; equipped
66 Modem 34336 NOTE Passwords may be stored only in memory locations 2 through 9. 5.Programming a response to a correct password. Enter the following command, replacing CONNECTED with your message: AT &Z0=/UCONNECTED The DTE responds with the specified message when the modem receivesa correct pa...
Page 68 - Enabling Modem-to-Modem Remote Control Mode; Exiting from Remote Control Mode; • Another modem in the same rack or
67 4.0 General Operation and Special Features Control Procedure (Modem-to-Modem) Enabling Modem-to-Modem Remote Control Mode To remotely control a modem connected by a direct phone link,access REMOTE screen 1 (shown below). If you select CONTROL, you will be able to control the front panel of therem...
Page 69 - Each modem must have a unique address.; REMOTE
68 Modem 34336 Remote control through a rack controller is an especially valuable capabilityfor modem used in high-density 16-slot enclosures. The low-profile modemsspecially designed for these racks are manufactured without an LCD userinterface or control pushbuttons. One way to access the low-prof...
Page 70 - controlling modem
69 4.0 General Operation and Special Features 2. Enter the address or slot number—To enter the address or slot number of the modem to be controlled, press pushbutton 3. If ADDR/C isdisplayed on REMOTE screen 2, a screen showing ADDRESS: 000,000 onthe top line will be displayed. If SLOT/C is displaye...
Page 72 - Pin
71 4.0 General Operation and Special Features 4.9 Diagnostic Interface Control The diagnostic software built into the Modem supports a special set ofcommands known as diagnostic port commands. The commands (listedin Table 4-3) are used to configure modems (from either a local or remotelocation), or ...
Page 73 - The remaining commands listed in this table will function only if
72 Modem 34336 Table 4-3. Diagnostic Port Commands. COMMAND FUNCTION CONNECT g,u Connect to diagnostic port of modem at group address g, unit address u. An address must be specified unless the wildcard character * is used: CONNECT * (meaning Connect to local modem; address unknown/unspecified.). Whe...
Page 76 - Actual LCD on connected modem:; A D; There are two ways to disconnect from a modem-DTE diagnostic link:
75 4.0 General Operation and Special Features 4.9.4 DTE D ISPLAYS When Auto-Display is enabled, an update of the LCD is automaticallydisplayed on the DTE screen each time a command (E, 1, 2, 3, left arrow,or right arrow) is entered to control the front-panel LCD on the connectedmodem. Auto-Display i...
Page 77 - Automatic Fallback; Operating Mode Fallback—
76 Modem 34336 • If you want to disconnect from the diagnostic link without establishing a new link, issue the CONNECT command without an address. 4.10 Automatic Fallback The Modem incorporates two automatic fallback features that are controlledby the user: • Operating Mode Fallback— Provides compat...
Page 78 - • An AT command is available (in Hayes mode only) that allows control; MODE; 400 bps asynchronous/synchronous
77 4.0 General Operation and Special Features Changing the Operating Mode Fallback parameter to 1 has the followingeffects: • The Modem is configured for V.22 bis 2400 bps/V.22 1200 and 600 bps/V.21 300 bps/V.23 1200/75 bps fallback operation. As a result,600 and 1200/75 bps appear as additional sel...
Page 80 - How to Enable or Disable RRP; Rate Change Screen
79 4.0 General Operation and Special Features If Rate Renegotiation Procedure (RRP) is enabled, the modem willautomatically fall back or fall forward to a lower or higher data rate in response to changes in signal quality. This may happen at any time duringdata transmission, and it is done without a...
Page 81 - RESET RATE
80 Modem 34336 After you select UP or DOWN, the LCD will automatically switch to the EIAstatus screen so you can see the result of the rate-change request (i.e., thecurrent data rate, which is displayed in the lower left corner of the EIA statusscreen). However, if the Modem has reached the minimum ...
Page 82 - Hayes Emulation Mode; Hayes Mode Autodialer; • Quick Setup. If you use the Quick Setup feature to select 2-Wire Dial
81 5.0 Hayes Emulation Mode 5.0 Hayes Emulation Mode For easy reference, the following tables appear consecutively at the end of thischapter: • Table 5-1. Hayes Compatible Commands • Table 5-2. Hayes Mode Result Codes • Table 5-3. S Register Functions 5.1 Hayes Mode Autodialer When the Hayes emulati...
Page 84 - Dial Command Modifiers.
83 5.0 Hayes Emulation Mode • Dial Command Modifiers. Several modifiers can be used with the basic D (dial) command to alter dialing operations. The modifiersare explained below. Dial Command Modifiers: L — Links a phone number to another number to be dialed as an alternate P — Sets pulse-dialing mo...
Page 85 - and; command, the speed is indicated by the CONNECT response code.); Hayes Compatible Commands; . Commands are listed in alphabetical order in
84 Modem 34336 5.1.3 R ESULT C ODES Result codes (see Table 5-2) are messages sent by the modem to the DTEmonitor in response to your commands. Result code options are selectedusing the V and X commands, as explained below. Result codes may be words ( V1 command) or digits ( V0 ). Word codes are pre...
Page 87 - • H — Telephone Switch Hook; • L — Link; dial modifier is used to link one phone number to
86 Modem 34336 • H — Telephone Switch Hook . The H command (on-hook) is used to terminate a call. (On-hook corresponds to off-line.) H may also alternatebetween voice and data transmission during the same call (if yourcommunication software supports this capability). The H1 command (off-hook) activa...
Page 88 - • P — Pulse Dial
87 5.0 Hayes Emulation Mode • O — Forced On-Line . For asynchronous operation only. When the modem is on-line, you can return to the command state by enteringthe escape code (+++). After the desired command is executed, use the O command to force the modem from the command state to the on-line state...
Page 90 - • &W — Write Profile To Memory
89 5.0 Hayes Emulation Mode • ! — Initiate Flash. The ! command causes the Modem to go on-hook for 1/2 second. The command has the same effect as holding the switch-hookbutton on your telephone down for 1/2 second. Some PBX systems use aflash to transfer calls. • &F — Recall Factory Configuratio...
Page 91 - DS
90 Modem 34336 Ring count Wait time before blind dialing Wait time for carrier/dial tone In addition, the &W command does not save stored phone numbers. • &Z — Store Telephone Number. The &Z command is used to store a telephone number dialed using the DS (dial stored number) command. The...
Page 92 - S0 — Ring To Answer On
91 5.0 Hayes Emulation Mode 5.3.1 R EADING A ND S ETTING R EGISTERS Use the S command to read the value of a register or to change its value. To read the current value of a register, use the command S? , where the number of the register is specified between the S and the ?—for example, S9 ?. The dec...
Page 94 - • S18 — Diagnostic Timer.
93 5.0 Hayes Emulation Mode If the guard time is zero, timing is not a factor. The three escapecharacters can occur with any timing relationship, but they must beconsecutive. Be cautious when assigning small guard times. You may notbe able to enter three characters fast enough, especially if the gua...
Page 95 - Selecting Options In Hayes Mode; User Profile 0
94 Modem 34336 5.4 Selecting Options In Hayes Mode In Hayes mode, options may be selected by using one of the following: • AT commands (Table 5-1) • The front panel • The Summary Setup feature The easiest way to change options in Hayes mode is to use the AT commandslisted in Table 5-1 or the Modem’s...
Page 96 - the profile 0 configuration.; User Profile 1; is not linked to the front panel.; . When Profile 1 is active, these options can be changed via; Hayes Mode Reference Tables; Table 5-1 lists the Hayes compatible commands used with the Modem.
95 5.0 Hayes Emulation Mode • If profile 0 is recalled as the active configuration, the LCD screens reflect the profile 0 configuration. • If profile 0 is changed by means of Hayes commands or via the Summary Setup feature and then saved, the changes made are reflected on theLCD and are effective fo...
Page 98 - COMMAND FUNCTION/EXPLANATION; Requests product code.; Link Dial; (L specifies LINK function when used as a; Pulse Dial; No parameters, but the default is T (for; Send Result Code
97 5.0 Hayes Emulation Mode Table 5-1 (continued). Hayes Compatible Commands. COMMAND FUNCTION/EXPLANATION I Product Code Or Checksum I0 Requests product code. I1 Requests checksum for the Modem’s software. (Only a portion of the checksum displayed via the front panel is displayed in decimal format....
Page 106 - WORD; LINKING
105 5.0 Hayes Emulation Mode Table 5-2 (continued). Hayes Mode Result Codes. DIGIT CODE WORD CODE MEANING 15 CONNECT 4800 Carrier detected at 4800 bps. 18 CONNECT 9600 Carrier detected at 9600 bps. 20 LINKING Modem is dialing numbers that are linked using the L (link) dial modifier. Note: Four addit...
Page 109 - DTR D
108 Modem 34336 DTR D IALING IN V.25 BIS M ODE An alternative to using the V.25bis CRS command to dial a stored number isto use the DTR dialing option. With DTR dialing enabled, the autodialer willdial the number stored in the phone cell displayed in the front-panel AUTO-DIAL screen when DTR goes hi...
Page 110 - DIC — Disregard Incoming Call.; The DIC command instructs the
109 6.0 V.25 bis Autodialer • DIC — Disregard Incoming Call. The DIC command instructs the autodialer not to answer an incoming call. The DIC command iscancelled when the CIC command is issued or auto-answer is enabledfrom the front panel. • PRN — Program Normal (Store Number) (Syntax: PRN<|>1...
Page 113 - Dialing Parameters
6.3 Dialing Parameters Table 6-2 lists dialing parameters you can use with the CRN commandto modify dialing operations. 6.4 V.25 bis Result Codes Table 6-3 explains the result codes, or responses, that are displayedon the DTE monitor during V.25 bis operation. 6.5 DTR Dialing In V.25 bis Mode An alt...
Page 115 - There are two types of remote diagnostics:
114 Modem 34336 7.3 Physical Inspection The next step in isolating a defective component is inspecting the system.If you can trace the problem to a specific site, examine that site. Check theinstallation of the modem and DTE. Are all cables in good condition andfully connected? Are all components in...
Page 116 - How to Select and Activate Tests; commands listed; Diagnostic Monitoring: Status Screens
115 7.0 Diagnostics 7.5 How to Select and Activate Tests 7.5.1 F RONT -P ANEL C ONTROL Tests are accessed and activated in the same way options are selected: by usingthe LCD and front panel pushbuttons (as explained in Chapter 3). To findthe LCD screen for a specific test, refer to the LCD flow char...
Page 117 - Displays the quality of the received signal carrier as
116 Modem 34336 D = Dial line occupied R = Ringing (R appears in same position as D.) S = Connection secured by security handshake (S appears in same position as D. S and D may flash alternately.) TR = Data Terminal Ready MR = Data Set Ready RS = Request to Send CS = Clear to Send TD = Transmit Data...
Page 119 - Local Modem Diagnostics
118 Modem 34336 7.7 Local Modem Diagnostics Local modem diagnostics are for testing the Modem and its adjoining system.The tests are accessed from the main menu and are easily performed if theModem is attached to DTE or an external BERT. 7.7.1 A NALOG L OOPBACK (ALB) T EST Analog loopback testing al...
Page 120 - should be left ON (default selection) to avoid; In Hayes mode only, initiate the ALBST using the command
119 7.0 Diagnostics In Hayes emulation mode only, initiate the ALB test using the command &T1 (preceded by AT). In any mode, initiate the ALB test using the modem’sfront panel controls, explained in the following paragraphs. Make sure the modem is idle, the data rate is the same as the DTE’s dat...
Page 122 - The external analog loopback test is available forB.; External loopback
121 7.0 Diagnostics To run the test, go to the LCD MAIN MENU. From page 2 of the LCD MAINMENU, select TEST. This takes you to screen 1 of the LOCAL TEST menu,where ST/E is visible as one of the selections. Select ST/E. The SELFTEST W/ERROR screen is displayed, with ON and OFF as thepossible selectio...
Page 124 - The external analog loopback self-test is available for; -wire leased line mode
123 7.0 Diagnostics 7.7.5 E XTERNAL A NALOG L OOPBACK S ELF -T EST (ALXST) The external analog loopback self-test is available for 4-wire leased line mode only . The ALXST places the modem in analog loopback and causes data to be sentand received by an internal 511-bit pattern generator and receiver...
Page 125 - In Hayes mode only, initiate the DLB test using the command
124 Modem 34336 To initiate the ALXST, use the Modem’s front-panel controls to go to theLCD MAIN MENU. From page 2 of the LCD MAIN MENU, select TEST. Go to the second page of the LOCAL TEST menu. Select ALXST. The ANALOG ST (EXT) screen is displayed, with ON and OFF as the possibleselections. Select...
Page 127 - Remote Modem Diagnostics; In Hayes mode only, initiate the RDL test using the command
126 Modem 34336 7.8 Remote Modem Diagnostics The Modem performs two tests on compatible remote modems: remotedigital loopback (RDL) and remote digital loopback self test (RDLST).If a problem is encountered and the local Modem passes all diagnostic tests,the local Modem can test the remote modem. Two...
Page 128 - In Hayes mode only, initate the RDLST using the command
127 7.0 Diagnostics From page 2 of the MAIN MENU, select RMT. Then select TEST. From the REMOTE TEST menu, select RDL. From the REMOTE DIGIT LOOP screen, select ON to activate the test. Thestatus screen is displayed as the test is being conducted. Make sure that testdata is being generated and watch...
Page 130 - APPENDIX A: DB25 Pin Assignments
129 APPENDIX A: DB25 Pin Assignments Appendix A: DB25 Pin Assignments Desig- LCD Pin nation Function Indicator Source 1 AA Frame ground—not connected 2 BA Transmit data (TD) TD DTE 3 BB Receive data (RD) RD Modem 4 CA Request to send (RTS) RS DTE 5 CB Clear to send (CTS) CS Modem 6 CC Data set (mode...
Page 131 - Appendix B: Quick Setup Configurations; instructions on selecting Quick Setups.; NOTE: All notes appear at the end of the table.; See notes on page 127.
130 Modem 34336 Appendix B: Quick Setup Configurations Table B-1 shows the complete default configuration for each of the QuickSetup modes. When you select a Quick Setup, the modem automatically setsall options as indicated in the table. The options are listed in the same orderin which they appear o...
Page 132 - APPENDIX B: Quick Setup Configurations
131 APPENDIX B: Quick Setup Configurations Table B-1 (continued). Quick Setup Configurations. Default Settings Listed by Mode or Type of Operation V.25 bis 2-WIRE 4-WIRE BELL OPTION HAYES ASYNC 1 DUMB LEASED 2 LEASED 2 V.33 208 3 Misc. Address 999,999 999,999 999,999 999,999 999,999 999,999 999,999 ...
Page 134 - See notes on next page.
133 APPENDIX B: Quick Setup Configurations Table B-1 (continued). Quick Setup Configurations. Default Settings Listed by Mode or Type of Operation V.25 bis 2-WIRE 4-WIRE BELL OPTION HAYES ASYNC 1 DUMB LEASED 2 LEASED 2 V.33 208 3 V.33 and Carrier Switched Switched 4 Switched Switched Switched Consta...
Page 136 - APPENDIX C: Summary Setup; Appendix C: Summary Setup; C.1 Introduction to Summary Setup; SUMMARY
135 APPENDIX C: Summary Setup Appendix C: Summary Setup C.1 Introduction to Summary Setup Summary Setup is designed to allow experienced users to quickly changeoption settings for any mode. There are three Summary Setup screens:SETUPS, AT PROFILES, and S-REG. They are briefly described on thenext pa...
Page 139 - a d d r; in the SETUPS screen using the; d i a l; EIA INTERFACE OPTIONS:
138 Modem 34336 Primary Options: a d d r 9 9 9 9 9 9 Group Unit address address Figure C-2. How to move the cursor in the SETUPS screen using the pushbuttons. Dial Line Options: d i a l 1 1 1 1 1 0 0 2 2 1 0 Pulse dialing rate (pulses per sec): 0=10, 1=20Wait for carrier (sec): 0=30, 1=45, 2=60, 3=7...
Page 143 - C.3 AT PROFILES Screen; ATbeflmqvxy AT&cdgjlpqrsx s00 s18 s25 s26 AT\abcdeh kmnpq t vx; AT PROFILES
142 Modem 34336 C.3 AT PROFILES Screen From the AT PROFILES screen you can select a Hayes mode configurationprofile (either 0 or 1). Only part of the profile can be displayed at one time.The selected profile is used as the active configuration and is also designatedas the default user profile. • Pre...
Page 144 - S R; DEC INC
143 Appendix C: Summary Setup C.4 S-REG Screen The S-REG screen may be used to read or change the value stored in an Sregister. For more information, see 5.3, S Registers . NOTE Not all S registers are intended for user access. Do not change the valueof an A register if you do not know the register’...
Page 145 - Jumpers should be switched only by qualified service personel.; • Connect frame ground to signal ground.; WARNING
144 Modem 34336 Appendix D: Jumpers WARNING Jumpers should be switched only by qualified service personel. For most applications, there is no need to reset the modem’s internal jumperswitches. However, a jumper switch will have to be reset if you need to do anyof the following: • Connect frame groun...
Page 148 - que el aparato eléctrico sea operado.
147 NOM Statement NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para ref...
Page 150 - © Copyright 1999. Black Box Corporation. All rights reserved.
1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746 © Copyright 1999. Black Box Corporation. All rights reserved.
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