COM220 Phone Modem
The COM220 phone modem enables communications between a computer and a Campbell Scientific data logger over a public switched telephone network. A Hayes-compatible modem is required at the computer site. The COM220 connects to the data logger at the field site. Most Campbell Scientific data loggers are compatible.
- The COM220 phone modem enables communications between a computer and a Campbell Scientific data logger over a public switched telephone network.
- A Hayes-compatible modem is required at the computer site.
- The COM220 connects to the data logger at the field site. Most Campbell Scientific data loggers are compatible.
- Wide operating temperature range and low power requirements make it ideal for use at remote sites
- 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.)
- Compatible with most Campbell Scientific data loggers
- Offers both modem enabled (ME) and synchronous device communications (SDC) modes.
- Allows user to set the number of rings before answering call.
Transmission Distance or Area | Worldwide |
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Operation | 1200 to 115200 baud digital communications over phone lines |
Operating Voltage | 12 Vdc |
Current Drain |
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Communication Rate | 9600, 38400, 57600, 115200 bps (between data logger and COM220, and selected by user) |
Operating Temperature Range | -25° to +50°C (standard) |
Standards | V.92, K56Flex, V.90, V.34, V.32bis, V32, V23, V22bis, V22, V.21, B212, B103 |
Registration |
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Service Requirements | If not available at the site, phone lines must be installed. |
Dimensions | 16.5 x 2.5 x 6.6 cm (6.5 x 1.0 x 2.6 in.) |
Weight | 0.16 kg (0.35 lb) |