iSMA-B-MAC36NL User Manual
Version 1.4
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2.2
Power Supply Connection
The device is designed to work with 24 V AC/DC separated power supply.
Figure 4. 24 V AC/DC power supply connection
2.2.1
Earth Grounding
Earth grounding protects from electrostatic discharge or other forms of EMI. Connecting the
controller’s ground spade lug to nearby
earth ground is possible in hardware versions below
2.1.
2.3
Communication Bus Connection (RS485)
The device is equipped with opto-isolated RS485 base port, which allows connecting the
device to the BMS in order to communicate with other devices in the network. The optional
controller version has an extension as second RS 485 port. All rules are the same as in the
base port. The way of proper bus cable connection is shown in the figure below.