24
Subject to change without notice
Data transfer
The oscilloscope has three interfaces.
1. On the front panel below the CRT is a USB fl ash drive con-
nector. Further information can be found under „Controls
and Readout“ (see item
43
).
2. At the rear panel of the oscilloscope there is the dual in-
terface HO720. It contains the following interfaces for data
transfer between oscilloscope and PC:
– USB (Device)
– RS-232 (bidirectional)
The interface is identifi ed by the oscilloscope fi rmware and
indicated in some menus. If required the interface HO720 can
be exchanged for another interface.
Safety
hints:
Regarding the interfaces mentioned above, all
interface connections are galvanically connected to
the scope.
Measurements at high potentials are prohibited and endanger
the scope, the interface and all equipment connected to the
interface.
STOP
Warning!
The installation or exchange of an interface may
take place only if the device was switched off pre
viously and was separated from mains/line.
If the safety rules are disregarded any damage to HAMEG
products will void the warranty. Neither will HAMEG take any
responsibility for damages to people or equipment of other
makes.
Description
USB (Device)
The CD added to the oscilloscope contains a folder with the
name of this oscilloscope. Amongst others it contains the
folder HO720_D2xx_DriverVxxx, where “Driver“, “Tools“ and a
description for USB driver installation can be found.
To enable a communication between PC and oscilloscope, an
USB driver must be installed on the PC, which is requested
by Windows if for the fi rst time a connection is made between
oscilloscope and PC via USB. A direct connection from PC (USB
connector) to the USB interface at the rear of the scope can be
made by a screened USB cable with less than 3 m length. The
CD contains other information under “ HO720 description and
USB driver installation “.
“Tools“ contains the folder “FT Clean“ with a program for USB
driver installation and “USB Install Test“ a program for USB
connection test.
RS-232
The RS-232 interface has the usual 9 pole SubD connector. Via
this bidirectional interface the scope can be controlled remo-
tely or its settings may be transferred. In digital mode also the
digitized and stored signals can be read out. The connection to
D a t a t r a n s f e r
a pc requires a 9 pole screened cable (1:1) of 3 m maximum
length. The pinout is as follows:
Pin
no. Function
2 Tx date from scope to external device
3 Rx data from external device to scope
7 CTS ready to transmit
8 RTS ready to receive
5 ground (scope is connected to safety ground, safety class
I)
9 + 5 V, max. 400 mA
The maximum signal on Tx, Rx, RTS and CTS is ±12 V.
The RS-232 interface parameters are:
8-N-2 (8 data bits, no parity, 2 stop bits),
RTS/CTS hardware protocol: none.
These parameters can be set on the oscilloscope.
Loading of new oscilloscope firmware
Go to www.hameg.com for the most recent firmware available
for downloading and scope upgrading.
STOP
Note:
A
fi rmware update may cause changes in operation
and new functions. In such cases an updated manu-
al can be download from the HAMEG homepage.
Accessories supplied and options
Accessories supplied:
HM2008 Mixed Signal CombiScope, Line cord, manual, 2 probes
10 : 1 with automatic identifi cation of the attenuation ratio
(HZ200), USB/RS-232 Interface (HO720), Windows software for
instrument control and data transfer.
Optional accessories:
HO730 Dual
interface
Ethernet/USB
HO740 IEEE-488
(GPIB)
interface
HO2010 4 Channel Logic Probe
HZ13
Interface cable (USB) 1.8 m
HZ14
Interface cable (serial) 1:1
HZ20
Adapter, BNC to 4mm banana
HZ33
Test cable 50 Ω, BNC/BNC, 0.5 m
HZ34
Test cable 50 Ω, BNC/BNC, 1 m
HZ45 19‘‘-Rackmount
Kit
4RU
HZ51 Probe
10:1
(150
MHz)
HZ52
Probe 10:1 RF (250 MHz)
HZ53 Probe
100:1
(100
MHz)
HZ56-2 AC/DC
Current
probe
HZ70
Optical interface with fi ber cable
HZ72 GPIB-Cable
2
m
HZ100 Differential probe 20:1 / 200:1
HZ109 Differential probe 1:1 / 10:1
HZ115 Differential probe 100:1 / 1000:1
HZ200 Probe 10:1 with auto attenuation ID (250 MHz)
HZ350 Probe 10:1 with automatically identifi cation
(350
MHz)
HZ355 Slimline probe 10:1 with automatically
identifi cation (500 MHz)
HZO20 High voltage probe 1000:1 (400 MHz, 1000 V
rms
)
