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TR-36B - PSTN and Leased Line modem
The TR-36B is a rack mount analogue V.34 PSTN and 2- or 4-wire leased line modem. It supports data rates of up to 115.2 kbit/s on the terminal side and modem modulation speeds of up to 33.6 kbit/s on the line side. The modem is designed to harsh industrial standards for applications where a number of modems are required in the same location. The TR-36B features a password protection, dial-back security and caller ID answering making the modem ideal for critical industrial applications. The TR-36B can also be remotely configured making it suitable for use in unmanned installations. The modem is designed for use in the Westermo RV-07B 19” rack, which can hold up to 16 cards as well as two PS-20 power supplies and can also be externally powered by a 24 V supply.


  • Data rate up to 33.6 kbit/s with Fast Connect
  • Terminal rate up to 115.2 kbit/s
  • RS-232 and RS-422/485 interface
  • 2- and 4-wire Leased Line
  • V23 HDX with multidrop
  • DTR and incoming data dialling
  • DIP-switch configuration
  • Watchdog security
  • Secure call back and access
  • Industrial environment transient protection on all interfaces
  • Up to 11 bits
  • Tri-Galvanic isolation (interface/line/supply)
  • Caller ID presentation and answering
  • Remote configuration
  • Dial backup for PSTN and Leased Line