Radios
Radio frequency (RF) com-
munications are supported
via narrow-band UHF, nar-
row-band VHF, spread spec-
trum, or meteor burst radi-
os. Line-of-sight is required
for all of our RF options.
Telephone Networks
The CR1000 can communicate with a PC using landlines,
cellular CDMA, or cellular GPRS/EDGE transceivers.
A voice synthesized modem enables anyone to call the
CR1000 via phone and receive a verbal report of real-
time site conditions.
Satellite Transmitters
Our NESDIS-certified GOES satellite transmitter pro-
vides one-way communications from a Data Collection
Platform (DCP) to a receiving station. The transmitter
complies with the High Data Rate (HDR) specifications.
We also offer an Argos transmitter that is ideal for high-
altitude and polar applications.
Multidrop Interface
The MD485 intelligent RS-485 interface permits a PC
to address and communicate with one or more data-
loggers over a single two-twisted-pair cable. Distances
up to 4000 ft are supported.
Short Haul Modems
The SRM-5A RAD Short Haul Modem supports com-
munications between the CR1000 and a computer via
a four-wire unconditioned line (two twisted pairs).
Direct Links
A desktop or laptop PC connects directly to the CR1000's
RS-232 port. If optical isolation is required, the PC is
connected to the datalogger's CS I/O port via an SC32B
or SC-USB interface.
PDAs
User-supplied PDAs can be used to set the CR1000’s
clock, monitor real-time data, retrieve data, graph data,
and transfer CR1000 programs. PConnect software (pur-
chased separately) is required for PDAs with a Palm
TM
OS, and PConnectCE software (purchased separately)
is required for PDAs with a Windows
®
CE OS.
Keyboard Display
With the CR1000KD, you can program the CR1000,
manually initiate data transfer, and display data. The
CR1000KD displays 8 lines x 21 characters (64 x 128 pixels)
and has a 16-character keyboard. Custom menus are
supported allowing you to set
up choices within the datalogger
program that can be initiated by
a simple “toggle” or “pick list”.
Ethernet
Use of an NL100 or NL115 interface enables the CR1000
to communicate over a local network or a dedicated
internet connection via TCP/IP. The NL115 also sup-
ports data storage on CompactFlash cards.
CompactFlash
®
The CR1000's data can be stored on a CompactFlash
card using either a CFM100 or NL115 module. On
the computer side, the CompactFlash cards are read
by the computer’s PCMCIA slot fitted with a CF1
CompactFlash adapter or by a USB port fitted with
the ImageMate USB CompactFlash Reader/Writer.
DSP4 Heads Up Display
Primarily intended for vehicle test applications, the
DSP4 permits dashboard mounting in a variety of
vehicles without obstructing the view of the driver.
Data Storage and Retrieval Options
To determine the best option for your application, consider the accessibility of your site, availability of services (e.g., cellu-
lar phone or satellite coverage), quantity of data to collect, and desired time between data-collection sessions. Some com-
munication options can be combined—increasing the flexibility, convenience, and reliability of your communications.
One CR1000KD can be
carried from station to sta-
tion in a CR1000 network.
Meteorological conditions
measured at Lake Louise,
Alberta, Canada are tele-
metered via phone-to-RF
link to a base station.
4
This station for the National Estuarine Research
Reserve (NERR) in Virginia transmits data via our
GOES satellite transmitter.
(56 pagine)
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