Campbell Scientific CR3000 Micrologger - Manual (Page 354)

Section 8. Operation
354
8.4 Telecommunications and Data Retrieval
Telecommunications, in the context of CR3000 operation, is the movement of
information between the CR3000 and another computing device, usually a PC.
The information can be programs, data, files, or control commands.
Telecommunications systems require three principal components: hardware,
carrier signal, and protocol. For example, a common way to communicate with
the CR3000 is with PC200W software by way of a PC COM port. In this example,
hardware are the PC COM port, the CR3000 RS-232 port, and a serial cable. The
carrier signal is RS-232, and the protocol is PakBus®. Of these three, a user most
often must come to terms with only the hardware, since the carrier signal and
protocol are transparent in most applications.
Systems usually require a single type of hardware and carrier signal. Some
applications, however, require hybrid systems that utilize two or more hardware
and signal carriers.
Contact a Campbell Scientific applications engineer for assistance in configuring
any telecommunications system.
Synopses of software to support the various telecommunications devices and
protocols are found in Support Software
(p. 76, p. 404).
Of special note is Network
Planner
,
a LoggerNet client designed to simplify the configuration of PakBus
telecommunications networks.
8.4.1 Hardware and Carrier Signal
Campbell Scientific supplies or recommends a wide range of telecommunications
hardware. Table CR3000 Telecommunications Options
(p. 354)
lists
telecommunications destination, device, path, and carrier options which imply
certain types of hardware for use with the CR3000 datalogger. Information in
table CR3000 Telecommunications Options
(p. 354)
is conceptual. For specific
model numbers and specifications, see the appendix Telecommunications
Hardware
,
contact a Campbell Scientific applications engineer, or go to
www.campbellsci.com.
Table 86. CR3000 Telecommunications Options
Destination
Device / Portal
Communications Path Carrier Signal
PC / COM or USB Direct Connect RS-232
PDA / COM Port Direct Connect RS-232
PC / COM Port Digital Cellular 800 MHz RF
PC / COM Port Multidrop RS-485
PC / Network Card Ethernet / PPP IP
PC / COM Port Spread Spectrum RF 900 MHz RF
PC / COM Port Licensed Frequency RF UHF VHF RF
PC / COM Port Short-haul Telephone CCITT v.24
PC / COM Port Land-line Telephone CCITT v.92
PDA / Infrared Port Infrared SIR