Technosoft IBL2403-RS232 - Page 40

© Technosoft 2007 30 IBL2403 Technical Reference
3.2.9.2 Differential encoder connection
+3.3V
Differential encoder
connection
Shield
IBL2403 v1.1
J2
+5V
MotionChip
TM
+5V OUT
Enc A+
A-/LH1
Enc B+
B-/LH2
Enc Z +
Z-/LH3
GND
+5V
+2V
+5V
+2V
+5V
+2V
470R
47K
1K
1K
1K
470R
47K
470R
47K
120R
terminator
120R
terminator
120R
terminator
Figure 3.16. Differential encoder connection
Remark: 120-Ω (0.25-W) terminators are required for long encoder cables, or noisy
environments.