ETC OneTrack by ETC - Page 29

Preparing for Installation 23
D
–
D
+
D
–
D
+
D
+
D
–
D
+
D
–
D
–
D
+
D
–
D
+
D
+
D
–
D
+
D
–
New Wire
Connections
New Wire
Connection
Data
Data
Data
Data
Figure 22: New wire connection options (X-coupler)
6. Repeat steps 5 and 6 for all remaining connections.
7. Replace the coupler cover and secure in place.
Note: The modified X-coupler wiring eliminates Y-taps and is compliant to ANSI
E1.11 - USITT DMX512(A).
The following images show sample reconfigurations of a T-coupler.
D
–
D
+
D
+
D
–
D
+
D
–
Original Wire
Connections
Y-taps disrupt
DMX data
transmission
Figure 23: Original wire connection (T-coupler)
CAUTION: The unmodified T-coupler wiring forms Y-taps, which disrupt
data transmission. Data transmission will become unreliable if the DMX
signal path is not configured according to ANSI E1.11 - USITT DMX512(A).