Campbell Scientific COM320 Voice Communications Modem - Manual (Page 8)

COM320 Voice Communications Modem
2. Specifications
• 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
• Operating voltage: 12 VDC
• Current drain: 100 μA quiescent; 35 mA active
• Operation: Full-duplex over standard analog phone lines
• Operating temperature: -25° to +50°C std, -40° to +85°C optional
• Dimensions: 6.5” x 1.0” x 2.6” (16.5 x 2.5 x 6.6 cm)
• Weight: 0.35 lbs (0.16 kg)
For information regarding the COM320 theory of operation refer to Appendix
A of this manual.
3. Quick Start
This section presents Basic_Voice_2.cr1 an example voice callback/callin
program written to demonstrate functions of the COM320. It can serve as a
starting point from which to build an application program. Test the auto-
disconnect capability as you customize the voice code and merge your
measurement sections with the voice code.
To demo the example program, obtain the following items or their equivalent:
1) COM320 (COM320_OS.03 or later OS)
2) SC12 Cable
3) CR1000 datalogger
4) 3 inches of thermocouple wire
5) PS100 Power Supply
6) Phone modem for your PC
7) LED in series with 1000 Ohm resistor
8) Analog phone line
The COM320 cannot interface with office digital phone lines.
Connect the COM320 to analog phone lines only, such as a fax
line. NOTE
You will also need:
1) Windows compatible PC with available COM port
2) LoggerNet 3.4.1 or later installed on PC.
2