
Telephone Modem with Voice Synthesizer
Model COM310
Campbell Scientific's COM310 voice-synthesizer modem provides a CR510, CR800, CR10(X), CR1000, CR23X, or
CR3000 datalogger with speech capability, thus enabling the user to call the site for a spoken summary of real-
time or historical data. The COM310 can also act as a standard modem, with data transmit rates up to 9,600 bps.
Features:
• Allows anyone to call a COM310-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 phone.
• Generates voice strings using CRBasic code for the CR800, CR1000, and CR3000 or LoggerTalk
TM
software
for the CR510, CR10(X), and CR23X; see page 3 for standard word list
• Operates over a wide temperature range: -25° to +50°C standard, -55° to +80°C, optional
• Includes a speaker that aids troubleshooting in the field
• Compatible with both mixed-array and PAKBUS
®
dataloggers
Tempertaure is 82.15
degrees Fahrenheit
TIP
RING
GND
CAMPBELL
SCIENTIFIC
INC.
MADE IN USA
S/N
1002
Complies with Part 68, FCC rules. FCC Registration No. B9QUSA-31402-MM-T
Ringer Equivalence 0.5A.Required Connector USOC RJ11C.
This equipment complies with the requirements in Part 15 of FCC Rules for Class A
computing device. Operation of this equipment in a residential area may cause
unacceptable interference to radio and TV reception requiring the operator to take
whatever steps are necessary to correct the interference.
COM310
VOICE SYNTHESIZER
12V
G
A COM310’s connections: The 9-pin serial port connects the COM310 to a datalogger via an SC12 cable.
The RJ11C Modular Telephone Jack connects the COM310 to a surge-protected telephone line, or alternative-
ly, the screw terminals (GND, RING, TIP) connect the COM310 to a phone line via a surge protector. Surge
protectors are strongly recommended for sites where the phone company has not provided surge protection.
123
456
789
*
0#
You can use any phone to call a
COM310-equipped site and receive a
verbal report of real-time conditions
WHEN MEASUREMENTS MATTER
W H E N M E A S U R E M E N T S M A T T E R
®
CAMPBELL SCIENTIFIC, INC.
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