2.2.8 Connecting the RS-485 SLC-220 Interconnect Serial Port
This port can be used only for future connection of a SLC-220 unit to a network of multiple SLC-
220 units and a SLR-220. No other device should be connected to this port.
Pass the cable through the proper gland in the external wall of the enclosure. Then connect the
wires to the contacts of terminal block TB1 on the Main board as follows:
TB1 Contact Contact Function (SLC-220 side)
1 A (non-inverting input)
2 B (inverting input)
3 Ground / shield of Cable
Note 1: Operating mode is Half Duplex. Full duplex is not supported.
Note 2: Functionality of this port is not implemented yet.
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