DEUTSCHMANN AUTOMATION UNIGATE IC2 - Fast Ethernet User manual

Instruction Manual
Universal Fieldbus-Gateway
UNIGATE®IC2 - Fast Ethernet
Deutschmann Automation GmbH & Co. KG
www.deutschmann.com | wiki.deutschmann.de

Manual Art-No. V4387E

3.4.20 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 4
Deutschmann Automation GmbH & Co. KG
1General introduction . . . . . . . . . . . . . . . . . . . . . . . 10
2The UNIGATE®IC . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Technical introduction . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 The serial standard interface . . . . . . . . . . . . . . . . . . . . . . 11
2.5 The synchronous serial interface . . . . . . . . . . . . . . . . . . . . 11
2.6 The Debug-interface . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.7 UNIGATE®IC2 hardware survey . . . . . . . . . . . . . . . . . . . . 12
3Hardware design. . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2.1 -Boot enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.2 Load out (SPI-Master: SS0-) . . . . . . . . . . . . . . . . . . . . . 14
3.2.3 Data out (SPI-Master: SS1-). . . . . . . . . . . . . . . . . . . . . . 14
3.2.4 Data In (SPI: MISO) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.5 Load In (SPI: MOSI) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.6 Clock (SPI: SCK) . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.7 -Reset In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.8 LED-LINKACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.9 Error-LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.10 LED-FE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.11 -Config Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.12 DbgTX, DbgRx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.13 TE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.14 TX, RX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4 Basic line of proceeding . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5 Connection examples . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.6 Layout-Beispiele . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.7 Handling (mounting the UNIGATE®IC2 on the carrier board) . . . . . 21
3.8 Requirement for Ethernet-Interface . . . . . . . . . . . . . . . . . . . 22
4The serial interface . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2 Initialization of the serial interface . . . . . . . . . . . . . . . . . . . 23
4.3 Use of the serial interface . . . . . . . . . . . . . . . . . . . . . . . 23
4.4 Further operation modes . . . . . . . . . . . . . . . . . . . . . . . . 23
4.5 UART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5Synchronous serial interface . . . . . . . . . . . . . . . . . . . 24
5.1 Shift register operation . . . . . . . . . . . . . . . . . . . . . . . . . 24

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5 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 3.4.20
5.1.1 Example-Script . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 SPI mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2.1 Example-Script . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6The Debug-interface . . . . . . . . . . . . . . . . . . . . . . . . 26
6.1 Overview of the Debug-interface . . . . . . . . . . . . . . . . . . . . 26
6.2 Starting in the Debug-mode . . . . . . . . . . . . . . . . . . . . . . 26
6.3 Communication parameter for the Debug-interface . . . . . . . . . . 26
6.4 Possibilities with the Debug-interface . . . . . . . . . . . . . . . . . 26
6.5 Commands of the Debug-interface . . . . . . . . . . . . . . . . . . 26
7Script and configuration . . . . . . . . . . . . . . . . . . . . . 27
7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2 The configuration mode . . . . . . . . . . . . . . . . . . . . . . . . 27
7.3 Update the Script . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.4 Configuration of the UNIGATE®IC2 . . . . . . . . . . . . . . . . . . 30
7.4.1 Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.4.2 RS232/RS485/RS422 . . . . . . . . . . . . . . . . . . . . . . . . . 30
8Generating a Script . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1 What is a Script? . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.2 Memory efficiency of the programs . . . . . . . . . . . . . . . . . . 31
8.3 What can you do with a Script device? . . . . . . . . . . . . . . . . 31
8.4 Independence of buses . . . . . . . . . . . . . . . . . . . . . . . . 31
8.5 Further settings at the gateway . . . . . . . . . . . . . . . . . . . . 32
8.6 The use of the Protocol Developer . . . . . . . . . . . . . . . . . . . 32
8.7 Accuracies of the baud rates at UNIGATE®IC2 . . . . . . . . . . . . 32
8.8 Script processing times . . . . . . . . . . . . . . . . . . . . . . . . 32
9Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.1 Network-addresses, network-connections . . . . . . . . . . . . . . . 34
9.2 TCP-connection setup . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2.1 TCP-Server channel mode . . . . . . . . . . . . . . . . . . . . . . 34
9.3 Data exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.3.1 TCP or UDP? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.4 Data exchange mode . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.4.1 Direct data exchange . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.4.2 MODBUS-TCP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.4.3 Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.4.3.1 Webserver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
9.4.3.2 FTP-server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
9.4.3.3 Script update via FTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.3.4 System configuration update via FTP . . . . . . . . . . . . . . . . . . . . .37
9.4.3.5 File system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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9.4.3.6 TCP server channel mode . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.3.7 UDP channel mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.3.8 Raw-channel mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.3.9 BusStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.5 Setting the Ethernet-address . . . . . . . . . . . . . . . . . . . . . . 37
10 Error handling at UNIGATE®IC2 . . . . . . . . . . . . . . . . . 39
11 Firmware-update. . . . . . . . . . . . . . . . . . . . . . . . . . 40
11.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
11.2 Adjusting the firmware-update-mode . . . . . . . . . . . . . . . . . . 40
11.2.1 Adjustment by hardware . . . . . . . . . . . . . . . . . . . . . . . . 40
11.2.2 Adjustment by software . . . . . . . . . . . . . . . . . . . . . . . . 40
11.3 Execution of the firmware-update . . . . . . . . . . . . . . . . . . . 40
11.4 Note on safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
11.5 Operation mode of the IC2 . . . . . . . . . . . . . . . . . . . . . . . 40
12 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
12.1 Mechanics of the UNIGATE®IC2 . . . . . . . . . . . . . . . . . . . . 41
12.1.1 General dimensions of UNIGATE®IC2 . . . . . . . . . . . . . . . . 41
12.1.2 Dimensions UNIGATE®IC2 (Fast Ethernet only) . . . . . . . . . . . 41
12.2 Technical data UNIGATE®IC2 - Fast Ethernet . . . . . . . . . . . . . 42
13 Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
13.1 Adapter RS232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
13.2 Adapter RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
13.3 FirmwareDownloadTool (FDT) . . . . . . . . . . . . . . . . . . . . . 43
13.4 Protocol Developer . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
13.5 Developer Kit UNIGATE®IC-AB IC . . . . . . . . . . . . . . . . . . . 43
13.5.1 Developer Board UNIGATE®IC-AB . . . . . . . . . . . . . . . . . . 43
13.5.2 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
14 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
14.1 Explanations of the abbreviations . . . . . . . . . . . . . . . . . . . 45
15 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
15.1 Returning a device . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
15.2 Downloading PC software . . . . . . . . . . . . . . . . . . . . . . . 47

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Disclaimer of liability
We have checked the contents of the document for conformity with the hardware and software
described. Nevertheless, we are unable to preclude the possibility of deviations so that we are
unable to assume warranty for full compliance. The information given in the publication is,
however, reviewed regularly. Necessary amendments are incorporated in the following editions.
We would be pleased to receive any improvement proposals which you may have.
Copyright
Copyright (C) Deutschmann Automation GmbH & Co. KG 1997 – 2020. All rights reserved.
This document may not be passed on nor duplicated, nor may its contents be used or disclosed
unless expressly permitted. Violations of this clause will necessarily lead to compensation in
damages. All rights reserved, in particular rights of granting of patents or registration of
utility-model patents.

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9 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 3.4.20

3.4.20 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 10
Deutschmann Automation GmbH & Co. KG General introduction
1 General introduction
In the past the integration of a fieldbus connection required an enormous effort from the progress
engineers. On account of the large variety of communication systems it is not enough to compile
the right combination of communication hardware; due to their standards and fundamentals dif-
ferent busses also require the corresponding skills of the engineers.
This does not apply in case of the UNIGATE®IC2 by Deutschmann Automation any more. All
digital functions, software, stack and driver as well as optocoupler are integrated on a UNIGATE®
IC2 in correspondence with the standard. In addition to the reduction of the required size, also
different fieldbuses can easily be integrated.
Through the flexible firmware of UNIGATE®IC2 no software-changes are required on the
side of the customer!
Since 1997 Deutschmann Automation has experience in the field of fieldbus gateways; this
enormous experience results in the UNIGATE®IC as a consistent sequel of this successful
product line.
Terminology
In the entire document and in all parts of the software that is to be used, the terms Input and Out-
put are used. Input and Output are ambiguous, always depending on the viewpoint. We see the
fieldbus as central interface and as integral component of your device; therefore in all places it is
always referred to data from the viewpoint of the Slave, that is Input data, as data from the Mas-
ter to the Slave - regardless of the used bus.
Representation of numbers
Numbers in decimal format are always represented without prefix and without suffix as well.
Hexadecimal numbers are always marked with the prefix 0x.
The UNIGATE®IC2 is a further development of the 1st series of the UNIGATE®IC. Equipped
with a Cortex-M4 controller, the UNIGATE®IC2 achieves much higher transfer rates when com-
municating via SPI or UART. In addition, the scripting processing time (depending on the com-
mands used) is reduced by a factor of about 50 - 80. Thus, script execution times in the
microsecond range are possible. Execution time of a script line is about 10 µs.
The UNIGATE®IC2 is also PIN-compatible with the 1st series of the UNIGATE®IC.

The UNIGATE® IC Deutschmann Automation GmbH & Co. KG
11 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 3.4.20
2 The UNIGATE®IC
2.1 Technical introduction
The UNIGATE®IC2 by Deutschmann Automation contains all components that are required for
the communication in a fieldbus in one single module. Therefore a developer does not have to
take care for that detail any more, only a hardware redesign is necessary in order to integrate the
UNIGATE®IC2 and the required plug connectors.
2.2 Availability
The module is available as Ethernet. Further fieldbuses are either planned or being worked on.
They will only differ in the connections of the busses. The meaning of the general pins 1 - 9 as
well as 24 and 26 - 32 will remain unchanged also for further fieldbus implementations.
You can find an up-to-date list for all UNIGATE®IC2s under:
http://www.deutschmann.com.
2.3 Firmware
UNIGATE®IC2 is programmed via Scripts. On principle any Script, that has been developed for
a UNIGATE®IC2, can also be operated on the UNIGATE®IC2.
2.4 The serial standard interface
Intelligent devices, that already feature a micro controller or a microprocessor, are generally sup-
plied with a serial asynchronous interface with a TTL-level. It is directly connected with the TTL-
interface of the UNIGATE®IC2. For more information on this serial interface see chapter 4.
2.5 The synchronous serial interface
In addition to the standard interface there is also the possibility of the synchronous input and out-
put. That way for instance digital IOs can be connected through shift register components or also
analog IOs can be connected through a DA-converter with serial in-/output. For synchronous IOs
256 signals at the most can be used (256 bit). Wiring examples can be found in chapter 3.5 and
for software examples see chapter 5. This interface can also be used to connect modules or
devices with SPI-interface. It is also possible to build, for instance digital or analogous I/O-mod-
ules, with the customer’s device not being equipped with an own controller. The fieldbus IC2 is
also operable autonomously without that controller.
2.6 The Debug-interface
The UNIGATE®IC2 features a Debug-interface, which allows to process a Script step by step
and also to monitor or manipulate data. This is indispensable for the development of a Script.
Usually a Script is developed with the software Protocol Developer. For more details take a look
at the instruction manual Protocol Developer.
All interfaces can independently be used at the same time.

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2.7 UNIGATE®IC2 hardware survey
The hardware of the UNIGATE®IC2 consists of some few standard components. The picture
below shows the functional structure of the IC2.

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13 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 3.4.20
3 Hardware design
This chapter gives basic advise, that is required in order to load UNIGATE®IC2 into your own
hardware designs. In the following all ports of UNIGATE®IC2 are described in detail.
3.1 Ports
UNIGATE®IC2 features 32 pins in its layout as a DIL 32 component. Pin 10 - 12 and 21 - 23 as
well are not wired due to the electrical isolation. The exact mechanical dimensions can be taken
from chapter 12.
In the layout boreholes for ALL 32 pins have to be planned.
3.2 Pinout
Pin Technical
specifications
Name Description
Remark
13,3V ± 5% < 210mA Vcc + 3,3 V voltage supply
2INLogic -BE boot enable
3OUTDriver Load out
(SS0-)
strobe signal for synchronous, serial interface
4OUTDriver Data out
(SS1-)
output data for synchronous, serial interface
5INLogic Data in
(MISO)
input data of the synchronous, serial interface internally pulled up with 10
k
6OUTLogic Load in
(MOSI)
input data of the synchronous, serial interface;
alternatively strobe signal of the output data
internally pulled up with 10
k
7OUTDriver Clock
(SCK)
clock pulse signal for synchronous, serial interface
8INReset -Reset in reset-input of the IC2
9connected to pin 1 Vcc + 3,3 V voltage supply
10 connected to Pin 18
11 connected to Pin 17
12 nc nc not connected
13 according to norm RJ45_6 Ethernet-signal RD- galvanically isolated 
insulation voltage 1000 Vrms
14 according to norm RJ45_3 Ethernet-signal RD+ galvanically isolated 
insulation voltage 1000 Vrms
15 according to norm RJ45_2 Ethernet-signal TD- galvanically isolated 
insulation voltage 1000 Vrms
16 according to norm RJ45_1 Ethernet-signal TD+ galvanically isolated 
insulation voltage 1000 Vrms
17 according to norm LED-LINKACT Ethernet linkpulses found / network data traffic from hardware rev. B on
connection see chapter 3.6
18 according to norm Error-LED anode of the red LED
(currently not supported)
(not supported yet)
connection see chapter 3.6
19 according to norm nc not connected
20 according to norm Ground (PE) ground from hardware rev. B on
21 nc nc not connected
22 nc nc not connected
23 connected to Pin 20
24 connected to pin 32 GND ground supply voltage of the IC2
25 LED-FE bus status LED (anode of the green LED)
26 INLogic -Config Mode signal to start the configuration mode internally pulled up with 10
k
27 OUTLogic DbgTX serial Debug TX

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The Ethernet signals are galvanically isolated. The insulation voltage is 1000 Vrms.
VIL VIH
INReset < 0,7V / 0,5mA >2,3V / 5µA
INLogic < 1V / 5µA >2,3V / 5µA
VOL VOH
Out < 0,45V / 4mA > 2,8V / 4mA
3.2.1 -Boot enable
The IC2 is started in the firmware update mode with the level GND during the power up process.
See also chapter 11.
3.2.2 Load out (SPI-Master: SS0-)
Strobe signal for the synchronous serial interface. With the positive edge at this output data is
taken from the connected shift registers to the physical outputs.
In SPI mode this Pin serves as a low-active Slave-Select-Signal.
3.2.3 Data out (SPI-Master: SS1-)
On this line data is output on the synchronous serial interface. The most significant bit of the data
is output first.
In SPI mode this Pin serves as a low-active Slave-Select-Signal.
3.2.4 Data In (SPI: MISO)
Data is read in on the synchronous serial interface via this signal. The most significant bit of the
data is expected first.
In SPI mode this Pin serves as data transfer from Slave to Master.
3.2.5 Load In (SPI: MOSI)
This pin is the strobe signal for the input data of the synchronous serial interface.
In SPI mode this Pin serves as data transfer Master to Slave.
3.2.6 Clock (SPI: SCK)
This signal is the clock line for the synchronous serial interface. That signal is equally valid for
data input and data output.
3.2.7 -Reset In
•A reset generator is on board; with it in the normal case the reset input is not required. In this
case the reset input has to be connected with VCC, in order to avoid interferences (see chapter
3.6).
•If the customer’s application has to initiate a reset of the UNIGATE®IC2, then the reset input
can also be connected with a reset output of the customer’s application instead of connecting it
with VCC. Here all specifications of the reset signal, mentioned in chapter 3.2 have to be kept.
The reset-impulse is supposed to last at least 10 µs.
28 INLogic DbgRX serial Debug RX internally pulled up with 10
k
29 INLogic RX serial data RX internally pulled up with 10
k
30 OUTLogic TX serial data TX
31 OUTLogic TE transmit enable
32* GND GND ground supply voltage of the IC2

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15 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 3.4.20
3.2.8 LED-LINKACT
A green LED can be connected to that line (see chapter 3.6). It is glowing when the Gateway is
connected to a working net (link pulses are being received) and it is flashing in case of network
data traffic (Activity). No difference between 10 and 100 MBaud is made.
3.2.9 Error-LED
This line is not supported yet and it is only meant for new future projects.
3.2.10 LED-FE
A red LED can be connected to this line (see chapter 3.6). It is glowing in the state of “Ethernet
ok“ and in the state “Config-mode“ it is flashing.
3.2.11 -Config Mode
If the pin has the level GND, then the IC2 starts in the configuration mode.
3.2.12 DbgTX, DbgRx
They are transmission line and receive line as well of the IC2’s Debug-interface. For the function
description of the Debug-interface see chapter 6.
3.2.13 TE
The transmit enable signal allows the connection of RS485 drivers to the IC2’s serial interface.
The signal is set to High whenever the IC2 sends via the line TX.
3.2.14 TX, RX
Transmission and receive line of the serial interface. This interface is programmable in accor-
dance with the description in chapter 4.
3.3 Software
The software executes Script-commands, which in turn control the IC2’s hardware and they pro-
cess their complete protocol by software. The Script itself can be generated by the company
Deutschmann Automation or with the software Protocol Developer by yourself. For a detailed
description of the Script commands of the Protocol Developer see the instruction manual Proto-
col Developer and the online documentation concerning Script-commands.

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3.4 Basic line of proceeding
In theory it is enough to replace the RS232-driver that is included in your application by the
UNIGATE®IC2.
Your device, which on the whole is supposed to be assembled as shown above, will now be mod-
ified in a way that the Ethernet is available at the 9-pol. socket. However, a hardware redesign is
necessary in order to keep the assignment in standard form.
After the RS232-driver has been replaced by the UNIGATE®IC2, Ethernet is available at an
RJ45-socket.
Deutschmann Automation is also offering an appropriate adapter board. With it existing devices
can be adapted without re-design; see chapter 13.

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17 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 3.4.20
3.5 Connection examples
Here you will find some advise that offers help for a re-design. In the following several versions
are listed, that should make it easier for you to decide.
Version 1: Use as a pure link module for the bus
The UNIGATE®IC2 independently processes the communication with the customer’s device via
the TTL-interface.
Version 2: Use of UNIGATE®IC2 for digital or analog I/O-modules
Here only the synchronous serial interface is used, the asynchronous serial interface is basically
of no account. If you want to program the Script in your completed application, then the use of a
connector for the asynchronous interface is recommended. With it you can carry out the ISP-pro-
gramming.
For this operating mode no additional controller is required on your application!

3.4.20 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 18
Deutschmann Automation GmbH & Co. KG Hardware design
The following circuit diagram is an example for how shift register components can be connected
to the IC2.
Version 3: Example for digital I/Os
The serial synchronous and the asynchronous interface as well can be operated by UNIGATE®
IC2 at the same time. Here the possibility results that an existing application can be extended by
additional digital or analog I/Os.
In chapter 5.2 you find an example for a Script, that operates these I/Os.
Valid for all versions: A planed plug connection of the serial interface in the application offers the
possibility of an update of the firmware or the software via an external connection.

Hardware design Deutschmann Automation GmbH & Co. KG
19 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 3.4.20
3.6 Layout-Beispiele
When connecting the UG-IC2 and the RJ45-connector it is important to
make sure the signal lines RD-/RD+ resp. TD-/TD+ run as short as pos-
sible, parallel and equal in length. Because this is for analog signals, it is
also advisable to not place digital lines in close proximity.

3.4.20 Instruction manual UNIGATE®IC2 - Fast Ethernet V. 1.2 20
Deutschmann Automation GmbH & Co. KG Hardware design

The 74HCT595 used in this example has an undefined on-position, but
therefor can set the outputs to the tri-state condition via the OutEnable-
Pin 13. If it is more important to have a defined on-position in an applica-
tion, and the OutEnable-pin is not necessary, the 74HCT594 can be used
here.
Note:
The following recommendation results from the data sheet of the Wiznet W1000 used in the
UNIGATE IC-FE:
Transformer Characteristics
Parameter Transmit End Receive End
Turn Ratio 1:1 1:1
Inductance 350 uH 350 uH
Symmetrical TX & RX channels for auto MDI/MDIX capability