Campbell Com100 Instruction Manual - Operator'S Manual
1
COM100 Cellular Phone Package
Operator's Manual
1. Introduction
Telecommunication using cellular telephones is a convenient alternative to
standard phone or RF telemetry. In areas with cellular coverage, it has an
advantage over ordinary phone lines where the lines are not established and
would be costly to install. The advantage over an independent RF telemetry
system is that the company providing the cellular service takes care of the FCC
licensing and maintenance of cellular repeater stations.
To determine if a site has sufficient cellular coverage, a user can usually
borrow a portable cellular phone and visit the site. If a standard cellular phone
can place a call from the site with good sound clarity and good signal strength
the site should have no problems using cellular telemetry. If a directional
(Yagi) antenna is being used, it would be a good idea to have the cellular
phone company locate their cellular tower on a map so the antenna can be
pointed towards the tower.
Campbell Scientific's COM100 Cellular Phone Package includes:
•
Motorola M600 Transceiver—Motorola p/n 19370XNMSA
•
RJ-11C Interface—Motorola p/n 519360
•
Crydom Relay built into Power and Control Cable
•
Mounting Bracket, CSI p/n 10529
•
10’ Coaxial Cable with male mini-UHF and male Type “ N” Conn.
(Model 10531)
Options to complete package include (choose 1 phone modem)
300/1200/2400/4800/9600 Baud Data Modem
(Model COM200
or COM210)
300/1200/2400/4800/9600 Baud Data Modem and
Voice Synthesizer
(Model COM300
or COM310)
ASP962 Directional Antenna and Mounting Hardware
(Model 10530)
An appropriate power supply and antenna must be selected for each station.
The Motorola M600 Cellular Transceiver has an external RJ11C telephone
interface. A standard RJ11C patch cable connects the Campbell field modem
(COM200, COM210, COM300, COM310) directly to the transceiver. A
computer equipped with the PC208(W) Datalogger Support Software and a
Hayes compatible phone modem connected to a standard phone line is used to
call the cellular equipped stations (see Figure 1-1).
The transceiver is typically not supplied with a handset, but if the user wishes
to place a voice call, any standard analog touchtone telephone can be
connected. However, the field modems and a telephone cannot be connected