COM220

Name: COM220
Brand: Campbell Scientific
SKU: COM220
Availability: InStock

Phone Modem

COM220

OrderableConfigurable

Phone Modem

Pricing

Configuration

Set for US/Canada (Ships as 18895, 16675, & 2365)COM220-US
Set for (Ships as 43009, 16675, & 2365)COM220-UK
Set for Australia (Ships as 43010, 16675, & 2365)COM220-AU

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Model:: COM220
Item Number:: COM220
Warranty:: 1 year
Lead time:: 14 days
Compliance:: call Campbell Scientific for use in unlisted countries

Overview

Telephone Modem (Operating Range -25 to +50C) (incl SC12 cbl)

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.

Key Advantages

Ideal for Remote Sites
Low power use, wide operating temperature range

Technical Description

The COM220 has a CS I/O port, power terminals, screw terminals, and an RJ-11C jack. The data logger connects with the CS I/O port via an SC12 or SC12R-6 cable. The RJ-11C jack is for attaching a surge-protected telephone line. Alternatively, the screw terminals (GND, RING, TIP) can be used to connect the COM220 with a phone line via a surge protector.

Benefits

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.

Specifications

Transmission Distance or Area: Worldwide
Operation: 1200 to 115200 baud digital communications over phone lines
Operating Voltage: 12 Vdc
Current Drain: ~120 μA
(quiescent)
Current Drain: ~30 mA
(active)
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: FCC US 3A4M508BSM2-T-W
Registration: IC 2377 A-SM2TW
Registration: TBR21
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)