HP LD4210 42-inch LCD Digital Signage Display - Manual (Page 35)

Figure 3-34 Daisy chain connection—RS-232-C
RS-232C
(CONTROL)
OUT
IN
RS-232C
(CONTROL)
OUT
IN
RS-232C
(CONTROL)
OUT
IN
RS-232C
(CONTROL)
OUT
IN
1 2 3 4
ENWW Connecting daisy chain displays 27