iSTAR Edge G2 Controller Installation and Configuration Guide 46
Chapter 6 - Connections
Two Wiegand and Two RM Readers
Figure 9 on Page 46 shows two Wiegand readers and two RM readers.
Figure 9:Two Wiegand readers and two RM readers
RM Port Terminators
The four RM ports have an RS-485 Terminator switch that is normally on. You will usually leave these switches in the default
position. The RM reader bus is an RS-485 connection that must have terminators at each end of the bus. When the switch is
on the iSTAR Edge G2 provides the 120 ohm terminators. The other end of the bus is terminated by a switch in the RM4,
RM4E, I8, I8-CSI, or R8.
NOTE
In special cases, such as needing a star configuration in four directions, it is possible to turn off the Edge terminator and use a Y type
connector from the RM port.
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