Hameg HO720 Instruction sheet

DUAL-INTERFACE
HO720
Installation guidelines
English
Issued: September 2006

2Änderungen vorbehalten
General information regarding the CE marking
General information regarding the CE marking
HAMEG instruments fulfill the regulations of the EMC directive. The
conformity test made by HAMEG is based on the actual generic- and
product standards. In cases where different limit values are applicable,
HAMEG applies the severer standard. For emission the limits for
residential, commercial and light industry are applied. Regarding the
immunity (susceptibility) the limits for industrial environment have
been used.
The measuring- and data lines of the instrument have much influence
on emmission and immunity and therefore on meeting the acceptance
limits. For different applications the lines and/or cables used may
be different. For measurement operation the following hints and
conditions regarding emission and immunity should be observed:
1. Data cables
For the connection between instruments resp. their interfaces and
external devices, (computer, printer etc.) sufficiently screened cables
must be used. Without a special instruction in the manual for a reduced
cable length, the maximum cable length of a dataline must be less than
3 meters and not be used outside buildings. If an interface has several
connectors only one connector must have a connection to a cable.
Basically interconnections must have a double screening. For IEEE-bus
purposes the double screened cables HZ72S and HZ72L from HAMEG
are suitable.
2. Signal cables
Basically test leads for signal interconnection between test point and
instrument should be as short as possible. Without instruction in the
manual for a shorter length, signal lines must be less than 3 meters
and not be used outside buildings.
Signal lines must screened (coaxial cable - RG58/U). A proper ground
connection is required. In combination with signal generators double
screened cables (RG223/U, RG214/U) must be used.
3. Influence on measuring instruments.
Under the presence of strong high frequency electric or magnetic fields,
even with careful setup of the measuring equipment an influence of
such signals is unavoidable.
This will not cause damage or put the instrument out of operation. Small
deviations of the measuring value (reading) exceeding the instruments
specifications may result from such conditions in individual cases.
HAMEG Instruments GmbH
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
DECLARATION DE CONFORMITE
DECLARACIÓN DE CONFORMIDAD
Hersteller / Manufacturer / Fabricant / Fabricante:
HAMEG Instruments GmbH · Industriestraße 6 · D-63533 Mainhausen
Die HAMEG Instruments GmbH bescheinigt die Konformität für das Produkt
The HAMEG Instruments GmbH herewith declares conformity of the product
HAMEG Instruments GmbH déclare la conformite du produit
HAMEG Instruments GmbH certifica la conformidad para el producto
Bezeichnung: Dual-Interface
Product name: Dual Interface
Designation: Interface dual
Descripción: Interfaz dual
Typ / Type / Type / Tipo: HO720
mit / with / avec / con: HM1008, HM1508, HM5530
Optionen / Options /
Options / Opciónes: –
mit den folgenden Bestimmungen / with applicable regulations /
avec les directives suivantes / con las siguientes directivas:
EMV Richtlinie 89/336/EWG ergänzt durch 91/263/EWG, 92/31/EWG
EMC Directive 89/336/EEC amended by 91/263/EWG, 92/31/EEC
Directive EMC 89/336/CEE amendée par 91/263/EWG, 92/31/CEE
Directiva EMC 89/336/CEE enmendada por 91/263/CEE, 92/31/CEE
Niederspannungsrichtlinie 73/23/EWG ergänzt durch 93/68/EWG
Low-Voltage Equipment Directive 73/23/EEC amended by 93/68/EEC
Directive des equipements basse tension 73/23/CEE amendée par 93/68/CEE
Directiva de equipos de baja tensión 73/23/CEE enmendada por 93/68/EWG
Angewendete harmonisierte Normen / Harmonized standards applied /
Normes harmonisées utilisées / Normas armonizadas utilizadas:
Sicherheit / Safety / Sécurité / Seguridad:
EN 61010-1:2001 / IEC (CEI) 1010-1:2001
Überspannungskategorie / Overvoltage category / Catégorie de surtension /
Categoría de sobretensión: II
Verschmutzungsgrad / Degree of pollution / Degré de pollution / Nivel de
polución: 2
Elektromagnetische Verträglichkeit / Electromagnetic compatibility /
Compatibilité électromagnétique / Compatibilidad electromagnética:
EN 61326-1/A1: Störaussendung / Radiation / Emission: Tabelle / table /
tableau 4; Klasse / Class / Classe / classe B.
Störfestigkeit / Immunity / Imunitee / inmunidad:
Tabelle / table / tableau / tabla A1.
EN 61000-3-2/A14: Oberschwingungsströme / Harmonic current emissions
/ Émissions de courant harmonique / emisión de corrientes armónicas:
Klasse / Class / Classe / clase D.
EN 61000-3-3: Spannungsschwankungen u. Flicker / Voltage fluctuations
and flicker / Fluctuations de tension et du flicker / fluctuaciones de tensión
y flicker.
Datum / Date / Date / Fecha
26. 01. 2006
Unterschrift / Signature / Signatur / Signatura
Manuel Roth
Manager

3
Änderungen vorbehalten
English
Declaration of conformity 2
General information regarding the CE marking 2
1. Safety hints 4
2. Interface description 4
2.1 USB
2.2 RS-232
3. Firmware 4
4. Interface fitting instruction 5
4.1 Removing the existing interface
4.2 Fitting the interface HO720
5. Interface selection 6
6. USB Driver Installation 7
7. Application 9
Content

4Änderungen vorbehalten
1. Safety Hints
STOP
Attention!
Fitting or exchanging of an interface must not be
made unless the oscilloscope or the spectrum
analyzer is switched off and not connected to line
(mains).
STOP
Attention!
During operation the interface opening must be
closed.
STOP
Attention!
All interface connections are galvanically connected
to the scope / to the spectrum analyzer.
STOP
Measurement at high potentials is prohibited and en-
dangers the scope / spectrum analyzer, the interface
and all equipment connected to the interface.
If the safety rules are disregarded, any damage to HAMEG In-
struments GmbH products will void the warranty. Consequently
HAMEG Instruments GmbH will not take any responsibility for
damage to people or equipment of other make.
2. Interface Description
HO720 is a DUAL Interface that can be used alternatively as a
USB 2.0 or as a RS-232 Interface in connection with the HAMEG
CombiScopes HM1008 and HM1508 as well as the HAMEG
spectrum analyzer HM5530 for data transfer and oscilloscope/
spectrum analyzer control. Only one function (USB or RS-232)
– not both at the same time – can be activated (see item 5 “Inter-
face Selection”). Both interfaces enable serial data transfer.
2.1 USB
The interface is equipped with a Type A USB female connector.
For direct connection with a host controller or an indirect con-
nection via a USB hub, a USB cable is required, equipped with
Type B male connector one end and a Type A male connector
at the other.
2.2 RS-232
The RS-232 connector and its specification comply with the
interface HO710 that is described in the oscilloscope / spectrum
analyzer manual.
3. Firmware
Oscilloscope
3.1 It is absolutely necessary to check the oscilloscope firmware
version before fitting the Interface HO720. The firmware
version already on the scope is displayed after switching
on if “Quick Start” is off. The “Quick Start” function can
be changed after pressing the SETTINGS pushbutton and
calling “Misc.”.
3.2 If the firmware version is 03.000-yy.yyy or higher, continue
the interface fitting as described under item 4 (Interface
Fitting Instruction). In the case of firmware versions below
03.000-yy.yyy, HO720 will not be recognised and a firmware
update is required as described under item 3.3.
3.3 In case of a firmware version below 03.000-yy.yyy, please
download the current firmware at www.hameg.com from the
Internet and update the oscilloscope. The firmware can be
found and downloaded under: Products >Oscilloscopes >
(oscilloscope type) >Software/Firmware (below the oscil-
loscope picture) >Firmware_HMxxx_Vxxx.zip.
After receiving the current firmware and its installation instruc-
tion, the firmware installation must be done via the RS-232
interface HO710. If the current firmware is installed, future
updates can be made by aid of HO720 too.
Spectrum analyzer
With spectrum analyzers the interface will be recognized by
each firmware version.
Type A Type B
General hints

5
Änderungen vorbehalten
4. Fitting of the HO720
Precondition!
The installation of the interface HO720 is meaningful only if,
as described under point 3 (Firmware), the oscilloscope has
firmware version 03.000-yy.yyy or higher. Otherwise the in-
terface is not recognized by the oscilloscope. With spectrum
analyzers the interface will be recognized by each firmware
version.
STOP
Safety!
The following procedures must only be carried out
on condition that the mains (line) power cable is not
connected to the oscilloscope and/or the spectrum
analyzer and no connection is made at the mea-
surement inputs.
STOP
Attention!
To avoid damage of the interface during removing
and fitting by electrostatic discharge, please link a
metal part of the oscilloscope / spectrum analyzer
to equalise potentials between oscilloscope / spec-
trum analyzer and your body. Maintain this connec-
tion during the fitting/removing!
Only touch the interface at its mounting panel!
4.1 Removing the existing interface
4.1.1 Remove both fastening screws.
4.1.2 Pull out the interface.
4.2 Fitting the interface HO720
4.2.1 Insert the interface HO720
in the opening in such a way, that
the PCB will be inserted in the
guides – visible on both sides – and push it in completely.
4.2.2 Fit the interface with the fastening screws previously (item
4.1.1) removed.
Fitting of the HO720

6Änderungen vorbehalten
5. Interface Selection
5.1 Oscilloscopes
The choice of the interface is only possible, if as described the
oscilloscope works with the firmware version 03.000-yy.yyy
under item 3 (Firmware), or more highly and the interface
HO720 (described as under item 4) is inserted.
5.1.1 Interface Selection with oscilloscopes
Pressing the SETTINGS pushbutton calls the “Settings” menu.
The function key “Interface” opens the submenu “Settings In-
terface” consisting of the menu items USB and RS-232.
5.1.1.1 USB
USB is selected when being displayed with higher intensity.
Further settings are not required.
5.1.1.2 RS-232
When “RS232” is activated the submenu “Parameter” is also
displayed. It enables RS-232 interface parameter settings that
must correspond with the RS-232 settings in a terminal program
or the HMLab settings.
Interface selection
5.2 Spectrum analyzers
5.2.1 Interface selection by spectrum analyzers
With a long press of the DISPLAY MODE key, the desired inter-
face is called and the spectrum analyzer displays the selected
interface „RS232“ or „USB“ for approx.. 1 second in the Readout,
in place of the Sweep time.
5.2.1.1 USB
If activated, this interface is indicated by “USB” in the Readout.
Further action is not necessary.
5.2.1.2 RS-232
If activated this interface is indicated by “RS-232” in the Readout.
Further action is not necessary. The RS-232 interface parameter
is controlled by the software AS300E. The port preset in the
software AS300E must be selected according to the COM port,
where the spectrum analyzer is attached.

7
Änderungen vorbehalten
6. USB-Driver Installation
STOP
Attention!
The basic requirement for installation of the USB-
Driver for Dual Interface HO720 on your PC is a
Combiscope with built in HO720 whose USB-Inter-
face is activated. The PC operating system must be
Windows 2000 or XP.
Providing a connection between PC and oscilloscope has been
established and there is no HO720 driver installed, the opera-
ting system answers “Found New Hardware”. In addition the
“Found New Hardware Wizard” is displayed. Only in this case
the USB-Driver must be installed.
The USB Driver is located in the directory “HO720_D2xx_Driver
....” subdirectory “Driver”.
6.1 Installation under Windows XP:
6.1.1 Please choose “No, not this time” and click “Next”.
6.1.2 Thereafter select “Install the software automatically
(Recommended)“ and click „Next“.
6.1.3 The wizard now searches for HAMEG HO720. If the driver
software has been found, please continue with item 6.1.4.
6.1.3.1 If the driver software has not been found, the message
„The wizard could not find the software for ... ? HAMEG HO720”
is displayed. Please click “Back” until item 6.1.2 is displayed.
Installing the USB-Driver

8Änderungen vorbehalten
6.1.3.2 Select “Install from a list or specific location (Advanced)”
and click “Next”.
6.1.3.3 “Browse” for the selected drive and select the folder
containing the driver. Confirm with “OK”.
6.1.3.4 After the selected path is displayed click “Next”.
6.1.4 Thereafter the “Hardware Installation” window is displa-
yed, showing a warning to continue the installation procedure.
As this warning is irrelevant in case of HO720 driver software,
click „Continue Anyway“.
6.1.5 The wizard installs the driver software.
6.1.6 Please click “Finish” to complete the installation.
Installing the USB-Driver

9
Änderungen vorbehalten
7. Application
7.1 Oscilloscopes
In combination with HMLab 0.60 or higher, the interface HO720
can be used via USB as well as RS-232. The HMLab “Settings“
must coincide with the interface settings.
If the present HMLab version is below 0.60 the current
version can be found in the Internet (www.hameg.com) for
downloading and updating your PC. The path is: Products
>Oscilloscopes >(oscilloscope type) >Software/Firm-
ware (below the oscilloscope picture) >Software/Firmware
(below the oscilloscope picture) >HMLab.zip.
Programming commands
The programming commands list will be provided in the Internet
under www.hameg.com.
7.2 Spectrum analyzers
The interface HO720 can be used both over RS-232 and over USB
in connection with the user software AS300E. The „Settings“
preset in AS300E have to correspond to the interface used in
each case. You can load the current user software from www.
hameg.com from the Internet. They find the software under:
Products >Spekrumanalysatoren >(Spekrumanalysatortyp)
>software/firmware (under the illustration of the Spectrum
analyzers) >AS300E.zip.
Mainhausen, Germany
September 2006
Application

www.hameg.de
Subject to change without notice
22-09-2006-gw HAMEG Instruments GmbH
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A Rohde & Schwarz Company D-63533 Mainhausen
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