Trusted by 500,000+ buyers, sourcing equipment from 1000's of industrial brands

Westermo Industrial PSTN Modem -TDW-33 from Paqworks

Supplier: Paqworks by Madison Technologies

The Westermo TDW-33 is designed to function reliably within industrial environments and in areas of high level interference.

Price Guide: POA

The Westermo modem has an RS-232 interface supporting terminal data rates up to 115-kbit/s. The TDW-33 is a V.90 modem meaning that it can support data rates of up to 56 kbit/s on the PSTN line side.

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 TDW-33 is ideal for industrial applications as it mounts easily on to a 35 mm DIN-rail, runs from 12–48-VDC power supplies, has screw terminal connections and is tri galvanically isolated.

For ease of setup the modem is supported by the Westermo TD-tool configuration software. Drivers for Windows setup are also supplied.

  • Extended temperature range –25°C to +70°C
  • Data rate up to 56 kbit/s (V90)
  • Terminal rate up to 115.2 kbit/s
  • DTR and incoming data dialling
  • Watchdog
  • Secure call back and access
  • Industrial environment transient protection on all interfaces
  • Up to 11 data bits
  • Tri-Galvanic isolation (interface/line/supply)
  • Caller ID presentation and answering
  • Remote configuration

For further information about the Westermo Industrial PSTN Modem -TDW-33 visit Paqworks - IP Cameras at
Use the IndustrySearch e-mail feature below and one of the Paqworks - IP Cameras team will respond to your enquiry directly.

Solutions For Industrial Data Communications & Networking