COM320

Voice Phone Modem
COM320

COM320

Orderable

Voice Phone Modem

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Model:
COM320
Item Number:
COM320
Warranty:
1 year

Overview

The COM320 is a voice-synthesizer modem that adds speech capability to a CR6, 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.

Key Advantages

Voice Synthesizer
Make your data logger speech-capable

Technical Description

The COM320 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 COM320 with a phone line via a surge protector.

The COM320 has a standard word list (see Word List brochure). 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

  • Phone. Typically a touch-tone phone, but a rotary phone can be used to receive a verbal report only when the report does
    not require user participation.
  • Analog phone line. Some DBX office phone lines are digital and cannot be used with the COM320.
  • Surge protector at the data logger site if one is not installed by the phone company. Campbell Scientific offers model 6362
    (mounts inside enclosure) or model 4330 (similar to the 6362 but without enclosure mounts).
  • COM320 voice-synthesizer modem (includes SC12 cable)
  • CR6, CR800, CR850, CR1000, or CR3000 datalogger
  • Environmental enclosure
  • Power supply, usually the data logger’s sealed rechargeable battery recharged with ac power or solar panel

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

Standard Word List

The COM320 has a standard word list (see Word List brochure). 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.

Product Notes

call Campbell Scientific for use in unlisted countries

Benefits

  • Allows anyone to call a COM320-equipped site from any phone (including cellular) to receive a verbal report of current site conditions.
  • Enables the data logger 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
  • Supports communication rates up to 115.2 kbps between modem and data logger
  • Includes a speaker that aids troubleshooting in the field

Specifications

Transmission Distance or Area
Worldwide
Operation
1200 to 115200 baud digital communications over phone lines
Generated voice messaging for incoming or outgoing calling
Touch-tone selection voice responses
Operating Temperature Range
-25° to +50°C

(standard)

Operating Voltage
12 Vdc
Current Drain
~100 μA

(quiescent)

~35 mA

(active)

Communication Rate
9600, 38400, 57600, 115200 bps

(between data logger and COM320, and selected by user)

Data Logger Interface
CS I/O, SDC9

(not changeable)

Standards
V.92, K56Flex, V.90, V.34, V.32bis, V32, V23, V22bis, V22, V.21, B212, B103
Registration
FCC US 3A4M508BSM2-T-W
IC 2377 A-SM2TW
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)

Compatibility

Programming

The COM320’s “sentences” are programmed using CRBasic code, which is included in PC400 and LoggerNet software. Both of these software packages support automated error-checking or user-initiated contacts.

Phone, Phone Lines, and Surge Protection

The COM320 must connect to an analog phone line. Some office environment PBX phone lines are digital and don’t interface to this analog modem. Of course, any phone may be used to call in to or receive callbacks from the COM320. A touch-tone phone is necessary for input or to navigate through the COM320’s menu system.

Typically, a length of phone line is run from the telephone company's junction box to the COM320s surge protector, and then to the Ground, Tip, and Ring terminals on the COM320. Alternately, if adequate surge protection is provided by the telephone company and the junction box supports it, a length of telephone wire with RJ11C connectors (#2365) can be run directly from the junction box to the socket on the COM320.

If the local telephone company does not provide surge protection, either the 6362 or 4330 surge protector should be used. See "Ordering Info" tab for more information.

Enclosure Considerations

The COM320 requires a desiccated, non-condensing environment; a Campbell Scientific enclosure is recommended. Grommets and screws are provided to attach the COM320 to the backplate of our enclosures.

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