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Subject to change without notice
System Description HZ620
VID x Ext.Video signal is switched to the output connector
of HZ620, x = 0 >not inverted, 1 > inverted
DIG x x = 0 >Logic Channels are switched on,
x = 1 > 20MHz on LC0 to LC3
DCV x.xxx DC-voltage from –1.999 to 2.999V, max.5mA, at
least one digit after the dot must be assigned.
CHY x If Box I (HM1x0xLF-Box) is connected to HZ620, the
CHY command selects a particular channel.
x = 0 > HZ620 signal is switched to all outputs of the
x = 0 > box.
x = 1 > signal is switched to CH1 output.
x = 2 > signal is switched to CH2 output.
x = 3 > signal is switched to CH3 + CH4
Note that the CHY selection remains valid even the signal type is
changed! Pulse- and Videosignal is routed to channel 1 of the box
by default. It can be changed by the CHY-command.
SIN x Box I switches to sine-wave input. x = 0 > sine wave
is switched to all outputs of the box
x = 1 > sine wave is switched to Channel 1 output
x = 1 > of the box.
x = 2 > sine wave at Channel 2
x = 3 > sine wave at Channel 3+4
Signal dependent commands:
ATT x x = 0 > 2:1 Attenuator in Box I is switched off,
x = 1 > Attenuator is active
IMP x x = 0 > 50 Ohm termination in Box I is off,
x = 1 > 50 Ohm termination on,
x = 2 > toggle 50 Ohm
The 50 Ohm termination resistor of the Box is turned
on/off automatically depending on the selected signal
Only with the Sqr-signal (HSQ) in the amplitude range
from 10mV to 50mV the 50 Ohm termination can be
switched on/off with the IMP command.
EXT x x = 0 | 1 >Ext.Frequency input on/off
Depending on the selected signal, these commands are execut-
ed or not. When changing the signal, any of these functions is
deactivated.
Other commands:
OUT x x = 0 > Output Off,
x = 1 > Output On,
x = 2 > Aux-Output ON
RST Resets the instrument to initial setting: Sqr, 5kHz,
25mV, Output Off
ID? Returns : HZ620 Vx.x + date
SN? Returns a 3 digit serial number: SN:xxx
Frequency selection:
FRQ x x = DC 200Hz 200kHz
0.5Hz 500Hz 500kHz
1Hz 1kHz 1MHz
2Hz 2kHz 2MHz
5Hz 5kHz 5MHz
10Hz 10kHz 10MHz
20Hz 20kHz 20MHz
50Hz 50kHz 50MHz
100Hz 100kHz 100MHz
Amplitude selection:
AMP x x = 10mV 25V 5V
25mV 0.5V 10V
50mV 1V 25V
0.1V 2.5V 40V
Note that 0.25V is without a leading zero : .25V
Commands can be arranged in a chain, separated only
by comma (without space). The max. length of the chain
is 63 characters, terminated by 0dh (CR). e.g. HSQ,ATT
1,OUT 1
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