Programming instructions

54 Designer’s Guide
Calsense
• Can be used as a communication path for FLOWSENSE® technology
Figure 28 - Spread Spectrum Communication
Requirements
To use a Calsense spread spectrum radio, the following is required:
• A Calsense Spread Spectrum Radio Hub (optional if only used for FLOWSENSE communication)
• An optional radio survey, to be conducted by Calsense prior to installing any spread spectrum
equipment. This service is provided free-of-charge and may be requested by a Calsense Sales
Representative. This helps ensure adequate coverage at the proposed controller locations.
• A maximum of 12 controllers using FLOWSENSE technology in a single chain
Hardwire (model -M)
The Calsense Hardwire communication option (model -M) enables communication between two or more
controllers using Paige P7171D communication cable. Figure 29
shows an example of two controllers
communicating using Hardwire.
Benefits of choosing the Hardwire communication option are:
• Lowest cost for side-by-side installations
• Multiple controllers can share a single central communication device
• Can be used as a communication path for FLOWSENSE technology
Figure 29 - Hardwire Communication
Calsense
controller
with -SR
option
Calsense
controller
with -SR
option
Calsense
controller
with -M
option
Calsense
controller
with -M
option
Paige P7171D
communication cable