Programming instructions

Designer’s Guide 51
Calsense
Requirements
To use a Calsense Analog Phone Modem, the following is required:
• RJ-11 phone jack with active phone line installed at controller location
• A plain old telephone service (POTS) analog phone line at the central computer (dedicated line
recommended)
• A POTS analog phone line at the controller (dedicated line recommended)
Note: Calsense does not support the use of digital phone lines to communicate with controllers.
This includes the use of Voice over IP (VoIP) systems.
Fiber Optic Modem (model -FOM)
The Calsense Fiber Optic Modem communication option (model -FOM) enables a computer running the
Calsense Command Center software to communicate with an ET2000e controller using an existing fiber
optic network. Figure 26
provides an example system with 3 controllers using the -FOM option.
Benefits of choosing the Fiber Optic Modem communication option include:
• Uses an existing fiber optic network
• Does not require any additional equipment or licensing
• Modem is self-healing and will failover to the next loop in the event of a failure
Figure 26 - Fiber Optic Modem Communication
Calsense
Controller
with -FOM
option
Calsense
Controller
with -FOM
option
Calsense
Controller
with -FOM
option
Computer with
Calsense Command Center