V.34 Analog Modem

The T-336 is a series of high performance, synchronous and asynchronous, full-duplex, multi-standard standalone or rack-mounted modem. It is designed for use on 2-wire dial-up and 2/ 4- wire leased-line circuits. In V.34 mode the T-336 provides full-duplex operation at up to 33.6Kbps on a 2/4-wire PSTN line with features like line probing, symbol rate and carrier frequency automatic selection.

The TRS-16 Supershelf can accommodate up to 16 modem cards with 16 ports, control unit and single or dual redundant power unit. Dual redundant power supply meaning if one power does fail, the other one is capable of powering the entire rack.

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Category:
  • Feature

    • Fully compatible with ITU-T V.34+/V.34/V.32bis/V.32/V.22bis/V.22/V.23/V.21/V.24/V.28/V.25bis/V.54/V.52/V. 42/V.42bis/V.14/V.13/V.8 and Bell 212A/103
    • 19” rack accommodates up to 16 modem cards with hot-swap and profile copy functions
    • Achieve throughput up to 115200bps
    • V.13 simulated carrier in half duplex
    • MNP4, V.42 error correction
    • MNP5, V.42bis data compression
    • Extended AT and ITU-T V.25bis command set
    • Leased line dial back-up and restore in manual or auto mode
    • Auto fallback and fall forward
    • Remote configuration via secondary channel
    • Front panel lock and password protect
    • Password & call back security
    • Diagnostic capabilities:
    • Analog loopback, digital loopback and remote, digital loopback (with pattern or not); BERT test pattern using 511
    • Auto or manual dialing/answer
    • Front panel configuration via rubber switches and LCD
    • Front panel key reset function
    • G3 FAX send/receive compatible with EIA-578 Class 1 FAX command (optional)
  • Specifications

    Compatibility
    • V.34+: 33.6/31.2 Kbps SM (4D TCM)
    • V.34: 28.8/26.4/24/21.6/19.2/16.8/14.4/12/9.6/7.2/4.8/2.4 Kbps SM(4D TCM)
    • V.32bis: 14400/12000/7200 bps TCM
    • V.32: 9600 bps TCM, 9600/4800 bps QAM
    • V.26bis: 2400/1200 bps DPSK
    • V.22bis: 2400 bps QAM, 1200 bps BPSK
    • V.22/Bell 212A: 1200 bps DPSK
    • V.23: 1200/75, 600/75 bps FSK
    • V.21/Bell 103: 300 bps FSK
    Data Format
    • Synchronous or Asynchronous
    • Total bit length: 8, 9, 10, 11
    Data Speed
    • Asynchronous-

    75/300/600/1200/2400/4800/7200/12000/14400/16800/19200/21600/
    24000/26400/28800/31200/33600/38400/57600/76800/115200 bps

    • Synchronous-

    1200/2400/4800/7200/9600/12000/14400/16800/19200/21600/
    24000/26400/28800/31200/33600 bps

    • Total bit length : 8, 9, 10, 11 bits
    • Parity bit : odd, even, none
    • Stop bit : 1, 1.5, 2 bits
    Line Interface
    • Cx/Nx: RJ-11 for dial-up, JM8 (like RJ45) for leased line
    • NDx: 6-pin Terminal Block or 50-pin Centronic
    DTE Interface
    • EIA RS-232C, ITU-T V.24/V.28
    • Line Requirement
    • Dial-up line, 2/4-wire leased line
    • Transmit Level
    • Dial-up line: 0 to -15 dBm; Leased line: 0 to -31 dBm
    • Receive Dynamic Range
    • -4 to -43 / 0 to -33 dBm
    • Equalization
    • Automatic adaptive EQ
    • Call Progress Monitoring
    • Dial tone, Ring, Ring-back, Busy and backup dial
    • Dialing Command and Type
    • Extended AT and V.25bis using Tone/Pulse/Mixed
    • Clock Source
    • Internal/External/Loopback
    • Flow Control
    • RTS/CTS, XON/XOFF, CTS only
    • Diagnostics
    Test Features
    • V.54/V.52 , LAL/DL/RDL
    • Test Patterns – 511
    Line Status Monitoring
    • Tx level, Rx level, S/N ratio, EQM value, delay, phase jitter, freq. offset, far-end freq. offset, far-end echo, DTE format, retrain count, Tx baud rate, Rx baud rate, Tx carrier, Rx carrier, Tx speed, Rx speed, Tx power back-off level, Interface lead monitoring
    Power Requirement
    • Input
    • AC: 90 ~ 265 V, Auto-range, 47 ~ 63 Hz
    • DC: -36 ~ -72 V (optional)
    • Dual redundant power unit for rack (optional)
    Power Consumption
    • < 5W
    Environment Temperature
    • Operating Temperature : 0 °C ~ 50 °C
    • Storage Temperature : -25 °C ~ 70 °C
    Humidity
    • Up to 95% non-condensing
    Certification
    • CE LVD, FCC
  • Application

    Application