Rice Lake Remote Displays/Scoreboards - 234HE - Manual (Page 3)

2
1 2 3 4 5 6 7 8
0 N
∆
GROUND
TX
DATA
RX
DATA
+XMIT
CL RETURN
-XMIT
CL DATA
+RECEIVE
CL DATA
-RECEIVE
CL RETURN
V+
J1
1 2 3 4 5 6 7 8
0 N
∆
GROUND
TX
DATA
RX
DATA
+XMIT
CL RETURN
-XMIT
CL DATA
+RECEIVE
CL DATA
-RECEIVE
CL RETURN
V+
J1
20 mA +
20 mA -
Communications Connections: 20 mA Current Loop Passive
2. Serial Communications Connections
GROUND
SIGNAL IN
Communications Connections: RS-232C