GV20401a_e.doc / Sep-08
Page 5 / 10
2.
Application
The GV 204 splitter has been designed for proper and trouble-free splitting of encoder signals
to two target units. Where signals have to be distributed to more targets, it is easy to cascade
several units (or to use a multi-splitter like GV470)
If applicable, the unit can at the same time operate as a level converter between TTL/RS422
levels and HTL (10-30V) levels.
It is possible to use only inputs A, B, Z and leave the inverted inputs /A, /B, /Z unconnected
(single-ended signals with HTL level)
When all signals A, /A, B, /B, Z, /Z are available, GV 204 will accept all industrial impulse
formats and levels like RS422, TTL-differential, HTL-differential).
The outputs provide all signals A, /A, B, /B, Z, /Z, even when the inverted signals are not
available on the input site. The output signal level is individually selectable to 5 volts or to
10 - 30 volts, by corresponding DIL switch setting.
3.
Block Diagram
The subsequent block diagram shows all essential circuit details of a GV204 unit:
GND
Vout
Shield
+V
B
+V
ext
GND
A
/A
B
/B
Z
/Z
GND
+
-
GND
A
/A
B
/B
Z
/Z
+5,4V
+V
B
TTL
HTL
TTL
HTL
+V
B
+5,4V
Input
(Sub-D-9 male)
Output 2
(Sub-D-9 female)
A
/A
B
/B
Z
/Z
3
5
4
2
1
9
7
6
3
2
1
9
7
6
3
2
1
9
7
6
5
5
Output 1
(Sub-D-9 female)