Tyco iSTAR eX - Wire (Yellow)

LED Connections
iSTAR eX Installation and Configuration Guide 4–31
1 Wire (Yellow)
With one wire, the Yellow drive is wired as shown in Figure 4.26
Figure 4.26: External Bi-color (1 wire)
iSTAR eX does not support external Bi-color LED Control, one-wire (Yellow)
display.