GV47001b_e.doc / Feb-08
Page 7 / 9
Cascaded units allow selection of the active source encoder via the encoder select input on the
3-position power connector (see also block diagram):
LOW (or open):
outputs refer to the encoder input of the same unit
HIGH (10 – 30 volts): outputs refer to the encoder input of the preceding unit
It is possible at any time to switch over from one to the other source encoder during operation,
therefore cascaded units can also operate as a cross-switch.
Where only one common encoder is used, the select input of the first unit remains
unconnected, and the select inputs of all follower units are advantageously connected to the
+pole of the power supply next to the select input
