Putting Into Operation; Input/Output Ports; Hameg Bus; Ieee-488 Bus - Hameg Instruments Ho79-5 Handbuch

with the front side facing down.
Remove the cap nuts underneath the
3.
power connector socket and on the right
side of the back cover.
Place the interface in such a way on
4.
the back cover that the 25pole D-Sub male
connector of the interface
the 25pole D-Sub female connector
scope and press the interface against the
back cover.
5. Attach the interface with the formerly
removed cap nuts to have a proper electrical
connection to the interface. This is required
to meet the emc regulations.
Please note: The interface
interface connectors
connected to the protective
Class I) via the oscilloscope.

Putting into Operation

Standard interface
connect external systems and devices to the
interface. To comply with EMC regulations
double shielded cables
cable lenght must not exceed 3 meters.
Make sure at this
cables shows any sign of damage.
After checking
oscilloscope can be switched on. Both, the
oscilloscope and the interface are now fully
operational. Please note that the interface
can only transfer data while the oscilloscope
is in storage mode (STOR.). In spite of that,
the oscilloscope can be used in the analogue
mode at any time, of course.
Every time the interface is activated (when
the scope is switched
parameters are newly
settings previously made with the two rotary
switches. If you wish
operation mode, just switch off the oscillo-
scope and make the new settings at SW 1
and SW 2 resp. using a 2.5 mm screwdriver
according to the table of settings
appendix A), and switch the oscilloscope on
20
is located above
of the
cabinet and the
are galvanically
earth (Safety
cables are used
must be used.
time that none of the
all connections
on), its operating
defined by the
to set another
again after a minimum time of 10 seconds.
Input/Output
HAMEG Bus
The HAMEG Bus has been designed
interfacing external
scope and consists
components:
lel data bus
Be aware at this point that the application
of undefined
minals can lead to disruptions or halt of the
oscilloscope operation. All digital inputs and
outputs are compatible
HCMOS standard (as the case may be).
Voltages higher than +5 V may not be
applied externally for any reason.
Although it is not necessary
knowledge of the makeup and function of
to
the HAMEG Bus to operate the interface,
the aforementioned
heeded.
The
IEEE-488
Besides the manually (START pushbutton)
started data transfer,
be integrated in an automated test system
according to the IEEE-488 standard, under
the
these conditions an external controller (e.g.
PC) is required.
To operate the H079-5
(GPIB) system, just connect the IEEE-488
cable (e.g. HZ72) to the corresponding
connector of the interface.
cable is used an adaptor for IEEE-488 is
required. Before switching on the oscillo-
scope check the settings of the two rotary
switches on the interface
that the proper operation mode, format and
device address settings
made.
The interface
(see
only" mode for one listening device (i. e.
plotter, printer), or in "device"
Ports
devices to the oscillo-
of three
supply voltage section, paral-
and control iines
signal levels to the bus ter-
with
precautions should be
Bus
the interface
with an IEEE-488
If an IEC625
to make certain
(SWI,
H079-5 can be used in "talk
for
functional
the TTL or
to have
can also
SW2) are
mode.