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TD-36 RS-485
The TD-36 485 is designed to function reliably within industrial environments and in areas of high level interference. The modem has an RS-232 and RS-422/485 interface supporting terminal data rates up to 115 kbit/s. The TD-36 485 is a V.34 modem meaning that it can support bidirectional data rates of up to 33.6 kbit/s on the PSTN or leased line side. Fast connect ensures that leased lines can re-establish connections in the range of 5 seconds. The modem is equipped with transient protection on the line side and a “watchdog” that monitors and automatically resets the modem in the event of a fault. These functions together with remote configuration make the modem perfect for installation at unmanned sites and prevent the need of costly service trips. The modem also has password protection, dial-back security and caller ID answering to ensure that only authorised users can communicate with the modem and any connected equipment. The TD-36 485 also has a single digital input and output relay. The input and output can be used to trigger, or be triggered by a number of different user defined events. Both the digital input and output are galvanically isolated from the rest of the modem. For ease of setup the modem is supported by the Westermo TD-tool configuration software but also has DIP switches to assist configuration. Drivers for Windows setup are also supplied.
TD-36


  • Extended temperature range –25°C to +70°C
  • Data rate up to 33.6 kbit/s with Fast Connect
  • Terminal rate up to 115.2 kbit/s
  • 2-/4-wire leased line
  • V23 FDX/HDX with multidrop
  • DTR and incoming data dialling
  • DIP-switch configuration
  • Secure call back and access
  • Dial backup for Leased Line using PSTN
  • Industrial environment transient protection on all interfaces
  • Up to 11 data bits
  • Tri-Galvanic isolation (interface/line/supply)
  • RS-422 / RS-485 interface. Digital I/O
  • Caller ID presentation and answering
  • Remote configuration