Product Information - COM220
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Phone Modem
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Model Temperature Range
COM220 -25 to +50°C
COM220-XT -40° to +85°C

Brochure, Version Date: August 2011  Brochure
Manual, Version Date: August 2011  Manual

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Features

  • Supports communication rates up to 115.2 kbps between modem and logger. (In practice, data transmission through phone lines is generally constrained to 33.6 kbps.)
  • Offers both modem enabled (ME) and synchronous device communications (SDC) modes.
  • Allows user to set the number of rings before answering call.
  • Replaces the COM210

General Description

The COM220 modem enables communications between a computer and a Campbell datalogger via a public switched telephone network. A Hayes-compatible modem is required at the base-station computer while a COM220 connects to the datalogger at the field site. The COM220's wide operating temperature range and minimal power requirements make it ideal for use at remote sites. A surge protector to help suppress incoming electrical transients carried down the phone line is strongly recommended.

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