Inhaltszusammenfassung zur Seite Nr. 1
AUGUST 1999
MD885A-R2
MD885A-R3
MD885AE-R2
MD885C-R2
601745301 Rev. A
Modem 34336
NOTE
All models include the modem, (1) leased line cable, (1) dialup phone cable
and this user manual. The MD885A-R2, MD885AE-R2, and MD885A-R3
include a power supply. The MD885A-R3 also includes (1) 10-ft. RS-232
cable and (1) DB9 F to DB25 M adapter.
CUSTOMER
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
SUPPORT
FREE technical support 24 hours a day, 7 days a week: Call 724-746-
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FCC Information FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, wh
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Modem 34336 Table of Contents 1.0 Specifications .....................................................................................6 2.0 Quick Start..........................................................................................8 2.1 Installation ..................................................................................8 2.1.1 Unpacking ................................................................................8 2.1.2 Package Contents....................................
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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 Disconnect Options ...............................................................43 3.3.5 Test Options ...........................................................................44 3.3.6 EIA Options ......
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Modem 34336 4.10 Automatic Fallback ..................................................................76 4.10.1 Operating Mode Fallback ......................................................76 4.10.2 V.32 Speed Fallback ...............................................................78 4.11 V. 13 Operation ........................................................................80 5.0 Hayes Emulation Mode .................................................................81 5.1 Hayes Mode Autodialer
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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 Diagnostics ......................................................118 7.7.1 Analog Loopback (ALB) Test .............................................118 7.7.2 Analog Loopback Self Test (ALBST) ............
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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 12 kbps, 9600, 7200, 4800, and 2400 bps V.34 28.8, 26.4, 24, 21.6, 19.2, 16.8, 14.4, and 12 Kbps, 9600, 7200, 4800, and 2400 bps V.22 bis 2.4 kbps, V.21 300 bps Bell 208A/B 4.8 kbps Bell 212A 1.2
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1.0 Specifications V.29 QAM at 9600, 7200, and 4800 bps V.27 8-phase DPSK at 4800 and 2400 bps V.26 4-phase DPSK at 2400 and 1200 bps V.23 FSK at 1200/75 bps, full duplex V.22 bis: QAM at 2400 bps; bandsplit, full duplex V.22: DPSK at 1200 bps; bandsplit, full duplex V.21: PSK at 0 to 300 bps; bandsplit, full duplex Autodialer — Automatic dialing using rotary pulses or tone signaling; supports Hayes AT commands or V.25 bis commands Answer Modes — Automatic and manual answer Equalization — Re
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Modem 34336 2.0 Quick Start All information in this manual applies to both the stand-alone and rack- mount versions of the Modem 34336. QUICK SETUPS FOR A QUICK START The simplest and fastest way to set up the Modems for immediate use is to select one of the factory-preset Quick Setup configurations. Quick Setups are explained in Section 2.3, following installation instructions (Section 2.1) and a brief introduction to the Modem’s front-panel display and controls (Section 2.2). 2.1 Installati
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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 CONNECTIONS 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) from the DTE (the EIA standard maximum length for interface cable). For DTE speeds greater than 19.2 Kbps, a shorter low-capacitance DTE interface cable should be used. Call technical support for i
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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 jack. NOTE Do not bundle the telephone and RS-232 cables together. • Optional: For manual-dial operation, or if you want to use the telephone line for voice transmissions (when the Modem is not o
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2.0 Quick Start 2.2 Front-Panel LCD and Controls To select a Quick Setup configuration, you will need to use the pushbuttons and liquid-crystal display (LCD) on the modem’s front panel. These features are shown in Figure 2-2. For a detailed explanation of the front panel controls, see Chapter 3. 2.2.1 POWER-ON SCREEN When the Modem is powered on, the LCD momentarily displays the power-on screen. The top line identifies the modem type. The lower line indicates the software revision level.
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Modem 34336 2.2.2 EIA STATUS SCREEN The EIA status screen indicates the operational status of the Modem as well as the condition of certain EIA RS-232 leads. The abbreviations that may appear are identified below. Typically, only a few of these abbreviations will be displayed during actual operation. D TR MR RS CS 9600 CD 12 3 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
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2.0 Quick Start 2.3 Quick Setup To set up the Modem for immediate use (or to quickly change the modem’s configuration for an alternate mode of operation), select one of the factory- preset Quick Setup configurations (see Table 2-1). Your Modem will be ready for operation. You will not need to make further adjustments. When you select a Quick Setup, the Modem uses internal memory to automatically set all of its options to the chosen configuration. All previously-stored option settings are ov
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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 IDENTIFIED ON LCD DESCRIPTION QUICK SETUP <01> 2-WIRE DIAL HAYES EMULATION MODE— This 2-W DIAL (Hayes) dial mode (for use over ordinary phone lines) allows the Modem to automatically dial (autodial) a previ
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2.0 Quick Start Table 2-1 (continued). Available Quick Setup Configurations. QUICK SETUP <07> 2-WIRE LEASED-LINE ANSWER MODE— 2-W LEASED (ANS) Same as Quick Setup 6 except for modem answer/ originate status. Use Quick Setup 7 if the leased line is a 2-wire line and you want to configure the Modem as the answer modem. QUICK SETUP <08> 4-WIRE LEASED LINE ORIGINATE MODE— 4-W LEASED (ORG) Same as Quick Setup 6 except for line type. Use Quick Setup 8 if the leased line is a 4-wire line and you w
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Modem 34336 2.4 Basic Operation This section provides basic information for each of the modem’s primary operating modes. If you encounter difficulty, refer to Section 2.5, Problem Solving. 2.4.1 2-WIRE DIAL (HAYES) MODE (QUICK SETUP 1) Two-Wire Dial (Hayes) mode is the factory-default configuration for the Modem. Hayes mode operation and commands are explained in detail in 5.0, Hayes Emulation Mode. Dialing a Phone Number. To dial a telephone number in Hayes mode, type the Hayes command AT D on
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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 is specified or the modem is reset. Connected. When a phone number is successfully dialed, a CONNECT message appears on the computer screen and the LCD on the Modem displays a status screen similar to the one shown below. D T
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Modem 34336 For V.25 bis operation, the Modem must be configured to use the same data protocol as the attached DTE. V.25 bis mode operation and commands are explained 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 bits with even parity and one stop bit. The default DTE interface rate is 38,400 bps in asynchronous mode. V.25 bis commands can be entered from the DTE keyboard. Example: CRN 5551234 In response to t
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2.0 Quick Start 2.4.3 2-WIRE DIAL (DUMB) MODE (QUICK SETUP 5) Dumb mode is used primarily for manual call origination, answer-only applications, and in conjunction with certain dial back security systems that utilize MI/MIC signals to place the modem on-line. (If you need to configure the modem for MI/MIC use, refer to Appendix D.) For additional information on Dumb-mode operation, refer to Chapter 4.0, General Operation and Special Features. Answering a Call Automatically. After the Quick S
