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Morgan Schaffer cannot guarantee protection from an external surge (such as lightning or electrical
arc) over 1500 V that could infiltrate the Ethernet line. It is the client’s responsibility to isolate the
Ethernet line on the client side.
Calisto/Calisto 2 supports several protocols over Ethernet:
MSSP (Morgan Schaffer Systems Protocol)
DNP3/TCP (widely used protocol specific to the electric utility industry)
Modbus (widely used protocol in general automation industry).
Refer to Section 4.2.5 Communication Settings of this manual for more information on the above
protocols.
The Calisto/Calisto 2 interface board includes a Type B USB jack. The USB connection does not
provide high voltage isolation and is therefore only suitable for local connection using a laptop
computer. This connection is convenient for the initial configuration of communication and other
settings. Driver installation is required in order to communicate over USB. Refer to 4.2.1 Installing
Calisto Access Software.
Below are guidelines for the installation of the Ethernet Outdoor Connectivity Kit:
The RJ45 pass-through bulkhead provided requires a 1-inch hole and must be
installed on a control cabinet.
UV stabilized cable ties are provided to secure the Ethernet patchcord.
Avoid installing the patchcord in any working or walking area.
The patchcord shield must be connected to the ground for interference
immunity. A Calisto/Calisto 2 monitor ordered with an Ethernet Outdoor
Connectivity Kit will have jumper J7 linking the onboard RJ45 receptacle shield
to the earth ground. Thus, the client has no need to connect the shield on his
side.
Avoid sharp bends to the cable.
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