General |
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| Manufacturer | Multi-Tech Systems, Inc. | ||||
| Model name | MultiModemZBA | ||||
| Model number | MT5634ZBA | ||||
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Standards |
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| Modem Compatibility | K56flex; ITU-T V.90; V.34 enhanced, V.34, V.32terbo, V.32bis, V.32, V.22bis, V.22; Bell 212A and 103/113; ITU-T V.29, V.42, V.42bis; ITU-T V.21 & V.23 in international versions | ||||
| Fax Compatibility | ITU-T Group 3, Class 1 and 2, T.4, T.30, V.21, V.27ter, V.29, V.17, and TIA/EIA TR29.2 | ||||
| Video Compatibility | ITU-T V.80 for H.324 video conferencing | ||||
| Error Correction | ITU-T V.42 (LAP-M or MNP 3–4) | ||||
| Data Compression | ITU-T V.42bis (4:1 throughput), MNP 5 (2:1 throughput) | ||||
| Interface | EIA RS-232C/ITU-T V.24/V.28 | ||||
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Performance |
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| Server-to-Client Data Rates |
56K speeds when accessing an ISP K56flex- or V.90-type server (actual speed depends on server capabilities and line conditions) |
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NOTE: Though this modem is capable of 56K bps download performance, line impairments,
public telephone infrastructure and other external technological factors currently prevent maximum 56K bps connections. |
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| Client-to-Client Data Rates | 33,600, 31,200, 28,800, 26,400, 24,000, 21,600, 19,200, 16,800, 14,400, 12,000, 9600, 7200, 4800, 2400, 1200, 0-300 bps | ||||
| Fax Data Rates | 14,400, 9600, 7200, 4800, 2400, 300 bps | ||||
| Data Format | Serial, binary, asynchronous | ||||
| Speed Conversion | Serial port data rates adjustable to 300, 1200, 2400, 4800, 9600, 19,200, 38,400, 57,600, 115,200, and 230,400 bps | ||||
| Transmit Level | -11 dBm (dial-up) | ||||
| Frequency Stability | ±0.01% | ||||
| Receiver Sensitivity | -43 dBm under worst-case conditions | ||||
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Features |
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| Mode of Operation | Fax online modes; full duplex over dial-up lines | ||||
| Flow Control | XON/XOFF (software), RTS/CTS (hardware) | ||||
| Intelligent Features | Plug and play; fully AT command compatible; autodial, redial, repeat dial; pulse or tone dial; dial pauses; auto answer; caller ID; EIA extended automode; adaptive line probing; automatic symbol and carrier frequency during start-up, retrain, and rate renegotiation; DTMF detection; call status display, auto-parity and data rate selections; keyboard-controlled modem options; non-volatile memory; on-screen displays for modem option parameters; command lines of up to 40 characters each; help menus; remote configuration; DTR dialing; callback security; A-law support in 56K modes; 11-bit support. | ||||
| Command Buffer | 40 characters | ||||
| Diagnostics | Power-on self test, local analog loop, local digital loop, remote digital loop. | ||||
| Indicators | LEDs for Transmit Data, Receive Data, Carrier Detect, 56K bps, 33.6K bps, 14.4K bps, Off Hook, Terminal Ready, Error Correction, Fax. | ||||
| Speaker | Command-controlled speaker for call progress monitoring. | ||||
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Modulation |
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| Data Modulation | FSK at 300 bps PSK at 1200 bps QAM at 2400, 4800, and 9600 bps (non-trellis) QAM with trellis-coded modulation (TCM) at 9600, 12,000, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800, 31,200, 33,600, and 56,000 bps |
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| Fax Modulation | V.21 CH2 FSK at 300 bps (half duplex) V.27ter DPSK at 4800 and 2400 bps V.29 QAM at 9600 and 7200 bps V.17TCM at 14400, 12000, 9600, and 7200 bps |
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| Carrier Frequencies | |||||
| ITU-T V.34 | 1600, 1646, 1680, 1800, 1829, 1867, 1920, 1959, 2000 Hz | ||||
| ITU-T V.32bis/V.32 | 1800 Hz | ||||
| V.22bis/V.22 or Bell 212A Standard (2400 & 1200 bps) |
Transmit originate: 1200 Hz Transmit answer: 2400 Hz Receive originate: 2400 Hz Receive answer: 1200 Hz |
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| ITU-T V.23 (1200 bps) |
Transmit originate: 390 Hz mark, 450 Hz space Transmit answer: 1300 Hz mark, 2100 Hz space Receive originate: 1300 Hz mark, 2100 Hz space Receive answer: 390 Hz mark, 450 Hz space |
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| ITU-T V.21 (0–300 bps) |
Transmit originate: 980 Hz mark, 1180 Hz space Transmit answer: 1650 Hz mark, 1850 Hz space Receive originate: 1650 Hz mark, 1850 Hz space Receive answer: 980 Hz mark, 1180 Hz space |
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| Bell 103/113 (0–300 bps) |
Transmit originate: 1270 Hz mark, 1070 Hz space Transmit answer: 2225 Hz mark, 2025 Hz space Receive originate: 2225 Hz mark, 2025 Hz space Receive answer: 1270 Hz mark, 1070 Hz space |
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| Fax Carrier Frequencies |
V.21 Ch2 (half duplex): 1650 Hz mark, 1850 HZ space for transmit originate 1650 HZ mark, 1850 Hz space for transmit answer V.27ter: 1800 Hz originate/answer V.29 QAM: 1800 Hz originate/answer V.17 TCM: 1800 Hz originate/answer |
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Physical |
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| Connectors | DB25 RS-232C connector; two RJ-11 phone jacks; power jack | ||||
| Cables | Phone cable with RJ-11 plug; DB25M to DB9F serial cable; external power transformer; country-specific power cord | ||||
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NOTE: Any cables connected to the computer should be shielded to reduce interference. |
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| Manual Control | Power switch | ||||
| Height | 29 mm (1.15 inches) | ||||
| Width | 108 mm (4.25 inches) | ||||
| Depth | 148 mm (5.8 inches) | ||||
| Weight | 224 g (8 oz) | ||||
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Power |
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| AC adapter: | |||||
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Environmental |
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| Operating temperature | 0°–50°C (32°–120°F) | ||||
| Humidity range | 20%–90% (non-condensing) | ||||