Programming instructions

Designer’s Guide 47
Calsense
Communication Options
Calsense offers a wide range of communication options to provide designers with the greatest flexibility
possible when designing a complex system.
GPRS Radio (model -GR)
The Calsense GPRS communication option (model -GR) enables a computer running the Calsense
Command Center Software to communicate with an ET2000e controller using the Internet. Figure 22
shows an example of a single computer communicating via the Internet with a controller using the -GR
option.
This option includes an external radio that connects to the Internet through an access point name (APN)
using a third generation (3G) connection such as HSPA+, HSUPA, HSDPA, or UMTS.
Benefits of choosing the GPRS communication option include:
• Delivers reliable long distance data communication via the Internet
• Does not require any trenching or wires
Figure 22 - GPRS Communication Using the Internet
Requirements
To use a Calsense GPRS Radio, the following is required:
• A Data Service Access plan purchased from Calsense; see Data Access Service Plans
on page 67
for more information
• GPRS coverage at the controller location
• Broadband internet access using cable, DSL, or mobile broadband
Note: Communication via dial-up service is not supported.
Ethernet Network
Calsense
controller
with -GR
option
Internet
Computer with
Calsense Command Center