GV20401a_e.doc / Sep-08
Page 8 / 10
6.
Impulse Outputs and Output Levels
The output signals are available on the two Sub-D-connectors marked "OUT1" and OUT2"
(female connectors on unit site). The pin assignment is shown in the block diagram and is also
printed to the top side of the unit.
The four-position DIL-Switch provides individual setting of the output levels for each of the two
output channels. At any time also the inverted signals will be available at the output, even
when no inverted signals appear at the input.
OUT1: TTL
OUT1: HTL
OUT2: TTL
OUT2: HTL
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
ON
With output format "TTL" the output level is always 5 volts.
With output format "HTL" the output level approximately corresponds to the supply voltage V
B
*)
When teV
ext
receives a voltage higher than the power supply V
B
, the output level will
correspond to +V
ext
*).
Units supplied with 5 volts only are unable to generate output levels higher than
5 volts, unless a corresponding voltage is applied to screw teVext.
*) Voltage drop is about 1.4 volts
