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ISDN modem for V.24 and analog connections

Connection of V.24 devices and analog lines on ISDN dial-up lines

Speed-ISDN MODEM V.24

Highlights

  • Remote management connections or backup services over ISDN
  • Data rate: Up to 230kbps asynchronous
  • Interfaces: 1 x V.24/V.28 and/or 1 x V.24/V.28 with 2 x POTS
  • Line: ISDN dial-up line (ISDN BRI S0)
  • Compact stand-alone unit
  • AT commands
  • Security by means of PAP/ CHAP, password protection, call-back function (optional)
  • B-channel protocol: MLPPP and transparent HDLC

Description

The SPEED-ISDN MODEM enables the adaptation of the widely-used V.24 interface on ISDN dial-up lines. The ISDN modem is perfectly suited for service providers, carriers or major enterprises to establish an ISDN backup or configuration connection to a remote installed devices for increased reliability. The modem operates as an analog modem without the need of specific drivers for the connected device. The SPEED-ISDN MODEM V.24/POTS is equipped with two analog interfaces in addition to the integrated V.24 interface, for the connection of fax machines or analog telephones. The SPEED-ISDN MODEM can be configured remotely from a service centre over ISDN and is available as compact stand-alone unit.

PDF download

SPEED-MODEM-ISDN_V.24e.pdf

Example of use

Remote management of network components via ISDN dial-up lines

SPEED-ISDN Modem - Applikation

Connection of voice/fax services and control data over ISDN

SPEED-ISDN MODEM V.24 - Applikation

Backup of DSL connections via ISDN dial-up lines

SPEED-ISDN Modem - Applikation
technical data


General

  • LED indicators: Status power, ISDN, L1, L2, sync, B-channels, DCD, DTR, Rx, Tx (B1, B2)
  • Dimensions (H x W x D):
    - SPEED-ISDN MODEM V.24: 22 x 70 x 130 mm
    - SPEED-ISDN MODEM V.24/POTS: 40 x 170 x 135 mm
  • Power supply: External power supply plug


ISDN dial-up line port

  • ISDN interface: I.430 (ISDN BRI S0) according to standard CCITT I.430 (2B1D)
  • Data rate: Up to 128kbps
  • Connector: RJ45
  • Dialing method: Hayes dialing, optionally V.25bis asynchronous, X.3-PAD
  • B-channel protocols: V.110/ECMA102, V.120, X.75, HDLC transparent (PPP synchronous to asynchronous) and MLPPP
  • D-channel protocols: DSS1, X.31 (optionally)


Interface port

  • Interface: V.24/V.28 (DB9, female)
  • Data rate: 230kbps asynchronous, half and full duplex


Analog port

  • Analog interface: 2 x POTS (only available for SPEED-ISDN MODEM V.24/POTS)
  • DMTF and automatic pulse dialing
  • Voltage at the a/b pin: > 43.5 V DC
  • Dialing voltage: > 35 V rms AC
  • Time interval for r-button: 100 – 200 ms


Security

  • Password protection
  • User authenthication: PAP/CHAP, MD5
  • Optional: Call-back function


Management

  • Configuration: Locally via asynchronous terminal/ PC or remote via ISDN


Approval

  • CE mark