W&T 88001 User manual

Manual
Installation, Startup and Application
W&T
www.WuT.de
RS232 Isolators
valid for:
#88001: RS232 Isolator 1kV
#88004: RS232 Isolator 4kV
#88050: RS232 Isolator 50kV
#11573: Adapter set for RS232 isolators
Release 10/2019

© 10/2019 by Wiesemann & Theis GmbH
Subject to errors and changes:
Since we can make mistakes, none of our statements should be
used without checking. Please let us know of any mistakes or
misunderstandings you are aware of, so that we can recognize and
eliminate them quickly.
Perform work on and with W&T products only as described here and
only if you have read and understood the manual fully. Unauthorized
use can result in hazards. We are not liable for the consequences
of unauthorized use. When in doubt, check with us or consult you
dealer!

W&T
Preamble
3
Subject to error and alteration
Differences in potential between RS232 devices connected to each
other are frequently the cause of erroneous data transmission and
failed interface components.
Wiesemann & Theis offers a whole family of galvanic isolators for
data lines to prevent compensation currents from flowing over
the signal lines when there are potential differences between the
devices.
The RS232 Isolator family is described together with their technical
specications and wiring examples on the following pages.
For up-to-date information on new developments, see our Internet
site at http://www.wut.de or check the e-mail short notices at the
W&T Interface Club, which you can also subscribe to from the W&T
Homepage.

W&T
Contents
4
Index
Legal Notices ....................................................................................... 5
Safety Instructions............................................................................... 7
RS232 Isolator 1kV, model 88001..................................................... 11
RS232 Isolator 4kV, model 88004..................................................... 15
RS232 Isolator 50kV, model 88050................................................... 19
Adapter set for RS232 isolators, model 11573................................ 23

W&T
Legal Notices
5
Subject to error and alteration
Legal Notices
Warning note concept
This manual contains notes which must be observed for your
personal safety and to prevent equipment damage. The notes are
called out with a warning triangle. Depending on the hazard level
the warning notes are represented in decreasing order of hazard as
follows:
1DANGER
Indicates a hazard which will result in death or serious injury if no
appropriate safety measures are taken.
1WARNING
Indicates a hazard which can result in death or serious injury if no
appropriate safety measures are taken.
1CAUTION
Indicates a hazard which can result in slight injury if no appropriate
safety measures are taken.
1NOTE
Indicates a hazard which can result in equipment damage if no
appropriate safety measures are taken.
When multiple hazard levels are present the warning note for the
highest level is used. If the warning triangle for personal injury is
used, then a warning for equipment damage may also be added in
the same warning note.

W&T
Legal Notices
6
Qualied personnel
The product described in this manual may be installed and placed
in operation only by personnel who are qualied for the respective
task.
In addition the documentation for the respective task must be
followed, especially the safety and warning notes included in it.
Qualied personnel have received training and experience which
enable them to recognize risks associated with handling the
described products and to avoid possible hazards.
Disposal
Electronic devices may not be disposed of with household waste,
but rather be brought to a proper electronics waste disposal facility.
A complete Declaration of Conformity for the described devices can
be found on the respective datasheet pages on the W&T Homepage
at http://www.wut.de.

W&T
Safety Instructions
7
Subject to error and alteration
Safety Instructions
General precautions
1CAUTION
This manual is intended for the installer of the described galvanic
isolators and must be read and understood before beginning any
work.
The RS232 isolators are to be installed and placed in service only by
an electrical specialist.
Intended use
1CAUTION
The intended use of the RS232 isolators is the use in accordance
with the information provided in the manual.
The devices may be operated only using the maximum permitted
connection values according to the technical data. Any other use or
modication is considered to be improper.

W&T
Safety Instructions
8
Installation
1CAUTION
Before beginning any work on the devices, the power supply of the
devices to be connected via the RS232 isolators must be completely
disconnected by suitable measures. Make sure that the devices
cannot be turned on again accidentally!
Please do not install the galvanic isolators in places with high
moisture or near water.
Please do not install the devices in places with high ambient
temperature or near heat sources. Please refer to the specication
of the maximum ambient temperature.

W&T
Safety Instructions
9
Subject to error and alteration
Electrical Safety
1DANGER
Both ports of all W&T RS232 isolators are isolated from each other
with a dielectric strength of 1kV, 4kV or 50kV DC.
This allow the RS232 isolators to suppress compensation currents
which can ow as a result of potential differences between the
connected devices when directly copper connections are used. Such
currents can cause interference with data transmission or even
destroy the interfaces.
The galvanic isolation of the RS232 isolators described in this
manual are designed for protecting the serial ports and for
ensuring noise-free data transmission in noisy environments. Use
of the devices to protect persons against contact with hazardous
voltages is not permitted. For safety-critical galvanic isolation,
please contact us.
Make sure that there is enough space between the cables leading
to the serial ports of the RS232 isolators to avoid any potential
ashovers between the cables.
Protection of operating personnel and the equipment is only
assured if the devices are used according to its intended purpose.
Any other use than described in the manuals may compromise
the safety and function of the RS232 isolators and the connected
systems.

W&T
Safety Instructions
10
If a fault is unable to be eliminated, the devices must be taken out of
service and protected against accidental startup.
Responsibility for adhering to the local prevailing safety regulations
lies with the operator.
EMC
1NOTE
All W&T RS232 isolators meet the limits for noise immunity in
industrial environments as well as emissions in commercial and
residential areas, so that use of these converters is not subject to
any EMC based restrictions.
To ensure compliance with the EMC standards, shielded signal
cables must be used.
If the RS232 isolator is part of an integrated solution, the installer
must ensure that the entire system complies with the EMC
guidelines.

W&T
11
Subject to error and alteration
RS232 Isolator 1kV, Model 88001
RS232 Isolator 1kV, Model 88001
The Isolator model 88001 galvanically isolates two RS232 devices
from each other with an isolation voltage of 1kV DC. It must be
inserted into the data line between these devices.
Function
One channel in each direction is provided which may be used only
for the data lines TxD and RxD but not for the handshake lines (DTR,
RTS, etc.). The two lines must always be connected on both ends,
even if data transmission is only in one direction.
Galvanic isolation of the signals is implemented using optocouplers.
The RS232 drivers and receivers are powered from the connected
peripheral devices; no external power supply is required.
When installing you must ensure that the data cables are suciently
far enough away from each other to prevent ashover.
In the event of a problem check rst whether the connection works
without the isolator by connecting only a 3-conductor cable (TxD,
RxD, GND) between the two RS232 devices.
The lower baud rate limit of the 88001 Isolator of 300 baud depends
on the output voltage of the connected interface. At very low baud
rates and unclear interface conditions you should switch to the
static operating model 88004 or the externally powered 1kV Isolator
model 88205.

W&T
12
RS232 Isolator 1kV, Model 88001
Connectors
Both interfaces of the W&T RS232 Isolator model 88001 are
implemented as 25-pin SUB_D connectors. By using the adapter set
model 11573 you can easily connect the isolator to 9-pin terminals
with PC conguration. A description of the adapter set can be found
later in this manual.The function of the isolator connection pins can
be found in the following table and on the sticker located on the
device itself.
Wiring example:
DB25 male connector
Pin# RS232 signal
2 data in
3 data out
7 signal GND
DB25 female connector
Pin# RS232 signal
2 data out
3 data in
7 signal GND
DB25 male DB25 female
Din
DOut
GND
Din
DOut
GND
88001
2
3
7
3
2
7
2
3
7
4
5
6
20
2
3
7
4
5
6
20
TxD
RxD
GND
RTS
CTS
DSR
DTR
TxD
RxD
GND
RTS
CTS
DSR
DTR
RS232 software handshake application

W&T
13
Subject to error and alteration
RS232 Isolator 1kV, Model 88001
Technical Data
Baudrate: 300..19200 baud
Data format: any data format
Supported signals: RxD, TxD
Isolation: min. 1.000 volts DC
Supply voltage: no external power supply required
Input impedance: > 470 Ohm
RS232 interfaces: DB25 male connector,
DCE pin assignment
DB25 female connector,
DTE pin assignment
Ambient temperature: Storage: -40..+70°C
Operation: 0..+50°C
Relative humidity: 5..95% RH (non-condensing)
Housing: plastic mini-housing,
Dimensions: 63 mm x 54 mm x 16 mm
Weight: approx. 50 g
Scope of delivery: 1x RS232 Isolator, model 88001
1x Gender Changer 25F-25F

W&T
14
RS232 Isolator 1kV, Model 88001

W&T
15
Irrtum und Änderung vorbehalten
RS232 Isolator 4kV, Model 88004
RS232 Isolator 4kV, Model 88004
The Isolator model 88004 galvanically isolates two RS232 devices
from each other with an isolation voltage of 4kV DC. It must be
inserted into the data line between these devices.
Function
One data channel and 2 handshake channels in each direction are
provided. To ensure a stable energy supply to the isolator at least as
many signal inputs should be connected to the isolator as there are
outputs available.
Galvanic isolation of the signals is implemented using optocouplers.
The RS232 drivers and receivers are powered from the connected
peripheral devices; no external power supply is required.
When installing you must ensure that the data cables are suciently
far enough away from each other to prevent ashover.
In the event of a problem check rst whether the connection works
without the isolator by connecting the two RS232 devices directly
without the RS232 isolator.

W&T RS232 Isolator 4kV, Model 88004
16
Connectors
Both interfaces of the W&T RS232 Isolator model 88004 are
implemented as 25-pin SUB-D connectors. By using the adapterset
model 11573 you can easily connect the isolator to 9-pin terminals
with PC conguration. A description of the adapter set can be found
later in this manual.The function of the isolator connection pins can
be found in the following table and on the sticker located on the
device itself.
Wiring example:
DB25 male connector
Pin# RS232 signal
2 data in
3 data out
4 handshake in 1
5 handshake out 1
6 handshake out 2
7 signal GND
20 handshake in 2
DB25 female connector
Pin# RS232 signal
2 data out
3 data in
4 handshake out 1
5 handshake in 1
6 handshake in 2
7 signal GND
20 handshake out 2
RS232 hardware handshake application
DB25 male
2
3
7
4
5
6
20
TxD
RxD
GND
RTS
CTS
DSR
DTR
DIn
DOut
GND
HsIn 1
HsOut 1
HsOut 2
HsIn 2
PC PC
TxD
RxD
GND
RTS
CTS
DSR
DTR
2
3
7
4
5
6
20
DB25 female
3
2
7
5
4
20
6
88004
2
3
7
4
5
6
20
DIn
DOut
GND
HsIn 1
HsOut 1
HsOut 2
HsIn 2

W&T
17
Irrtum und Änderung vorbehalten
RS232 Isolator 4kV, Model 88004
Technical Data
Baud rate: 0..115200 Baud
Data format: any data format
Supported signals: RxD, TxD, RTS, CTS, DSR, DTR
Galvanic isolation: min. 4kV DC isolation voltage
Creepage and
clearance distances: > 7mm
Supply voltage: no external power supply required
Input impedance: > 1000 Ohm
RS232 interfaces: DB25 male, DCE conguration
DB25 female, DTE conguration
Ambient temperature: Storage: -40..+70°C
Operation: 0..+50°C
Relative humidity: 5..95% RH (non-condensing)
Housing: plastic mini-housing,
Dimensions: 63 mm x 54 mm x 16 mm
Weight: approx. 50 g
Scope of delivery: 1x RS232 Isolator, Model 88004
1x Gender Changer 25F-25F

W&T RS232 Isolator 4kV, Model 88004
18

W&T
19
Subject to error and alteration
RS232 Isolator 50kV, Model 88050
RS232 Isolator 50kV, Model 88050
The Isolator model 88050 galvanically isolates two RS232 devices
from each other with an isolation voltage of 50kV DC. It must be
inserted into the data line between these devices.
Function
One channel in each direction is provided which may be used only
for the data lines TxD and RxD but not for the hand-shake lines (DTR,
RTS, etc.). The two lines must always be connected on both ends,
even if data transmission is only in one direction.
Galvanic isolation of the signals is implemented using a 100 mm
long ber optic cable. The RS232 drivers and receivers are powered
from the connected peripheral devices; no external power supply is
required.
When installing you must ensure that the data cables are suciently
far enough away from each other (min. 100 mm) to prevent
ashover.
In the event of a problem check rst whether the connection works
without the isolator by connecting only a 3-conductor cable (TxD,
RxD, GND) between the two RS232 devices.
The lower baud rate limit of the 88050 Isolator of 300 baud depends
on the output voltage of the connected interface.

W&T
20
RS232 Isolator 50kV, Model 88050
Connectors
Both interfaces of the W&T RS232 Isolator model 88050 are
implemented as 25-pin SUB-D connectors. By using the adapterset
model 11573 you can easily connect the isolator to 9-pin terminals
with PC conguration. A description of the adapter set can be found
later in this manual.The function of the isolator connection pins can
be found in the following table and on the sticker located on the
device itself.
Wiring example:
DB25 male connector
Pin# RS232 signal
2 data in
3 data out
7 signal GND
DB25 female connector
Pin# RS232 signal
2 data out
3 data in
7 signal GND
DB25 male DB25 female
Din
DOut
GND
Din
DOut
GND
88050
2
3
7
3
2
7
2
3
7
4
5
6
20
2
3
7
4
5
6
20
TxD
RxD
GND
RTS
CTS
DSR
DTR
TxD
RxD
GND
RTS
CTS
DSR
DTR
RS232 software handshake application