Modem đường điện thoại voice kết nối Datalogger Campbell Scientific COM320

Thương hiệu: Campbell Scientific | Tình trạng: Còn hàng
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COM320 Voice Phone Modem

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Modem đường điện thoại voice kết nối Datalogger Campbell Scientific COM320


The COM320 is a voice-synthesizer modem that adds speech capability to a CR800, CR850, CR1000, or CR3000 datalogger. This capability allows the user to call a site for a spoken summary of real-time or historical data. The COM320 can also act as a standard modem.

Benefits and Features

  • Allows anyone to call a COM320-equipped site from any phone (including cellular) to receive a verbal report of current site conditions.

  • Enables the datalogger to call you and recite a verbal warning if specified conditions occur.

  • Reports specific conditions or allows selection of information by pressing numbers on a touch-tone telephone

  • Uses voice strings created with CRBasic code

  • Operates over a wide temperature range; extended temperature testing available.

  • 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.)

  • Comes with a speaker that aids troubleshooting in the field

Detailed Description

The COM320 has a CS I/O port, power terminals, screw terminals, and an RJ-11C jack. The datalogger 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 COM320 with a phone line via a surge protector.

The COM320 has a standard word list (see document at right). Campbell Scientific may eventually add more words to the standard list. Customer-requested words for specific applications can also be included; consult the factory for details. The COM320’s sentences are programmed using CRBasic code.

Required Equipment

More detailed information about the required equipment is included under the Configuration tab.

  • Phone

  • Analog phone line

  • Surge protector at the datalogger site if one is not installed by the phone company.

  • COM320 voice-synthesizer modem (includes SC12 cable)

  • CR800, CR850, CR1000, or CR3000 datalogger

  • Environmental enclosure

  • Power supply

Datalogger-to-computer communication also requires, at the computer site, a PC or laptop running PC400, LoggerNet, or RTDAQ datalogger support soft ware, 7026 serial cable or equivalent modem cable, and a user-supplied Hayes-compatible modem.



Full-duplex over standard analog phone lines

Operating Voltage

12 Vdc

Current Drain

  • ~100 μA (quiescent)

  • ~35 mA (active)

Communication Rate

9600, 38400, 57600, 115200 bps (between datalogger and COM320, and selected by user)

Datalogger Interface

CS I/O, SDC9 (Only one device using SDC9 can be connected to the CS I/O port.)

Operating Temperature Range

  • -25° to +50°C (standard)

  • -55° to +85°C (optional extended)


V.92, K56Flex, V.90, V.34, V.32bis, V32, V23, V22bis, V22, V.21, B212, B103


  • FCC US 3A4M508BSM2-T-W

  • IC 2377 A-SM2TW

  • TBR21


16.5 x 2.5 x 6.6 cm (6.5 x 1.0 x 2.6 in.)


0.16 kg (0.35 lb)



COM320 56k Telephone Modem with Voice Synthesizer

COM320 Word List


COM320 Voice Communications Modem


COM320 EU Declaration of Conformity

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