Pepperl+Fuchs SK-PC-KM-10, EXTA-K1, EXTA-K3, EXTA-K4 Technical Manual

Technical Manual

Exi Keyboard / Mouse Interface
SK-PC-KM-10

Keyboard
EXTA-K1, EXTA-K3, EXTA-K4

SK-PC-KM-10, Version: 201, 03.07.06
EXTA-Kx

Table of Contents

1 Important Information....................................................................................................................................... 1

1.1 General instructions..................................................................................................................................1

1.2 Safety instructions .................................................................................................................................... 2

1.3 Symbols used in this manual.................................................................................................................... 3

2 SK-PC-KM-10 ..................................................................................................................................................4

2.1 Diagram of the system in the hazardous area.......................................................................................... 4

2.2 Technical data SK-PC-KM-10 .................................................................................................................. 5

3 Startup SK-PC-KM-10...................................................................................................................................... 6

3.1 Hardware connections .............................................................................................................................. 6

4 Terminal assignment........................................................................................................................................ 7

5 Cable................................................................................................................................................................ 9

5.1 S-PS2-PS2................................................................................................................................................ 9

5.2 S-KM-KX-10..............................................................................................................................................9

6 EXTA-Kx Exi PC-keyboards ........................................................................................................................ 10

6.1 EXTA-K1 Exi PC-keyboard without mouse system.............................................................................. 10

6.2 EXTA-K3 Exi PC-keyboard with trackball mouse................................................................................. 11

6.3 EXTA-K4 Exi PC-keyboard with touchpad mouse ............................................................................... 12

6.4 EXTA-K keyboard case ........................................................................................................................13

6.5 EXTA-K desktop case, stainless steel ABG-EXTA-K134..................................................................... 13

6.6 EXTA-K chemical resistance of the front foil ........................................................................................ 14

7 Rating plates .................................................................................................................................................. 15

7.1 SK-PC-KM-10 rating plate ...................................................................................................................... 15

7.2 EXTA-Kx-x-x-x rating plate ..................................................................................................................... 15

8 Order designations......................................................................................................................................... 16

9 Appendix EEx Certification ............................................................................................................................ 17

1 Important Information

1.1 General instructions

Copyright  2005 by Pepperl+Fuchs - EXTEC GmbH

All rights reserved

The publisher reserves the right to alter the information and data contained in this manual without prior notice.
Unless otherwise indicated, the company names as well as other names and data used in the examples are
purely fictitious.

The publisher may have registered patents or pending patent applications for subject matter covered in the
manual. This manual does not give you license to these patents.

Limited warranty:

No warranty is provided for the accuracy of the information contained in this manual. As mistakes cannot be
entirely avoided despite taking the greatest of care, we would be grateful to receive information about any
errors you may discover. The publisher disclaims all legal responsibility or liability for errors as well as for
subsequent damages and claims.

How to contact Pepperl+Fuchs - EXTEC GmbH:

Should you encounter any problems with the Exi Keyboard / Mouse Interface SK-PC-KM-10 or the
EXTA-Kx please consult the Technical Manual first of all. If you are still unable to solve the problems

after studying the above information carefully, you can contact Pepperl+Fuchs - EXTEC GmbH directly as
follows:

1) Internet: http://www.extec.de

2) E-mail: [e-mail]

3) Support hotline: Tel. [phone]

4) Write to the address below

If you need to contact the EXTEC support hotline, please make sure you have the Technical
Manual handy!

ÞLatest information, new products, support, updates, etc.

You can call up the latest information about EXTEC products on the Support page of our web site
(Internet address: http://www.extec.de) or ask to be put on the mailing list for the EXTEC
NEWSLETTER, our regular circular which will then be sent to you automatically. Please consult the
EXTEC web site for details of how to subscribe.

Publisher:

Pepperl+Fuchs - EXTEC GmbH
Schorndorfer Straße 55
D-73730 Esslingen

Important Information • 1 SKPCKM10_V201_TH_E.doc / 03.07.06

1.2 Safety instructions

⇒ These devices are only allowed to be installed and operated by trained and qualified

personnel who have received suitable instruction in their use.

⇒ These devices represent state-of-art technology. They are only allowed to be connected

to systems that have been approved by Pepperl+Fuchs - EXTEC GmbH.

⇒ Never open the devices yourself. They are only allowed to be opened by authorized

Pepperl+Fuchs - EXTEC GmbH personnel.
Pepperl+Fuchs - EXTEC GmbH is not liable for any resulting damages.

⇒ The devices are not allowed to be modified or otherwise altered in any way.

Pepperl+Fuchs - EXTEC GmbH is not liable for any resulting damages.

⇒ Please study the “Technical Manual ” carefully prior to starting up the devices.

⇒ The most recent version of the “Technical Manual” is always valid. It is available on the

Support page of our web site (Internet address: http://www.extec.de).

⇒ The operating voltage of the devices must not exceed the limits indicated in the

"Technical Manual" under Technical data.
In the event of failure to comply, Pepperl+Fuchs - EXTEC GmbH is not liable for any

resulting damages.

⇒ The relevant specifications for hazardous areas (e.g. EN60079, EN50178

EN 50014 - 50039) and accident prevention regulations (e.g. UVV) must be observed.

The technical data specified for the hazardous area corresponds to the certified values for
the European EEx approval. The user is responsible for ensuring that the devices are
suitable for their intended application and for the prevailing ambient conditions. No warranty
can be given by Pepperl+Fuchs - EXTEC GmbH in this connection.

Data subject to change without notice

SKPCKM10_V201_TH_E.doc / 03.07.06 Important Information • 2

1.3 Symbols used in this manual

Warning:

Caution:

Danger:

Non-hazardous
area:

Danger:

Hazardous area
( Zone 1+2 )

Additional Info:

Pressure load:

The indicated specifications may not be modified.
Non-compliance may result in dangerous situations
and damages.

Careful installation: do not replace electrical fuses
with fuses from different manufacturers. Non­compliance may result in dangerous situations and
damages.

The product may possibly be negatively impacted or
damaged by foreign influences.

Assembly and installation only in non-hazardous
areas.
Power supply cables for the hazardous areas zone 1
and zone 2 only with cable type DATL-A.

All safety regulations as well as compliance
certificates for hazardous areas must be observed.
In addition, all regulations (VDE) published by the
respective authorities for the application of the
devices in hazardous areas (zone 1 and 2) must be
complied with at all times.

Information and notices that must be observed
additionally.

Significant mechanical pressure or impact loads
may result in damages.

Important Information • 3 SKPCKM10_V201_TH_E.doc / 03.07.06

2 SK-PC-KM-10

The type SK-PC-KM-10 is an Exi keyboard / mouse interface which connects intrinsically safe keyboards and
keyboards with mouse of type EXTA-K in the hazardous area (zones 1 and 2, II (2) G) with a standard PC in
the non-intrinsically area.
The SK-PC-KM-10 is to be installed in the safe area (e.g. in a cabinet or inside a purged Exp case or in a
flameproof Exd housing of an industrial PC).
The maximum length of the cable from SK-PC-KM-10 to the Exi keyboard and keyboard with mouse is limited
to 10 m.

The SK-PC-KM-10 is certified for intrinsically safe keyboards and keyboards with mouse of type EXTA-K.

2.1 Diagram of the system in the hazardous area

Keyboard with touchpad

Keyboard without mouse

Keyboard + mouse

EXTA-K3

3

EXTA-K1

SK-PC-KM-10

X2

X1

EXTA-K4

Hazardous area

Safe area

X3 X4

21

1

S-PS2-PS2

PS/2 port
Keyb oard

PS/2 port

Mous e

2

3

S-PS2-PS2

S-KM-KX-10

SKPCKM10_V201_TH_E.doc / 03.07.06 SK-PC-KM-10 • 4

2.2 Technical data SK-PC-KM-10

SK-PC-KM-10

Approval:

Type of protection II (2) G, [EEx ib] IIC
Degree of protection IP 20

Ambient conditions (operation):
Temperature range 0 °C – +60 °C
Relative humidity Max. 85% without condensation (48 h endurance test)

Ambient conditions (storage):
Temperature range -10 °C – +70 °C

Mechanical data:
Weight Approx. 0.5 kg

Electrical data:
Output voltage +5V
Maximum output current 250mA
Maximum connectable capacity 38µF

SK-PC-KM-10 • 5 SKPCKM10_V201_TH_E.doc / 03.07.06

3 Startup SK-PC-KM-10

3.1 Hardware connections

This description of the startup procedure only contains information that is relevant to the SK-PC-KM-10.
Please refer to the PC manual for details of how to start up the PC. For descriptions of the EXTA-K Exi
keyboards please refer to section 6.

Proceed as follows to start up:

• Switch off the system or machine.

• Make sure that the installation area is safe for the duration of the startup procedure if any non-intrinsically

safe voltages need to be wired and/or non-intrinsically safe devices opened.

• Connect the SK-PC-KM-10 to the PC.

• Connect the Exi keyboard (or Exi keyboard + mouse) to the SK-PC-KM-10.

• Connect the protective earth conductor to the SK-PC-KM-10.

Warning

The protective earth conductor (PE) is connected to the
case. The case must be earthed (PA). The earth wire
must have a cross-section of at least 4 mm² and be as
short as possible.

• Switch on the power supply.

• Check all the functions.

• Switch on the system or machine.

• Check the functions of the complete system or machine.

Warning

The equipment or machine may malfunction if the Ex
PC operator terminal is not correctly connected and
configured.

Warning

These devices are intended solely for installation in
another machine. They are not allowed to be started up
until the conformity of the final product with the
89/336/EEC and 89/392/EEC Directives has been
established and this product inspected by an authorized
expert in accordance with EN 60079 and EN 50014 ff.

SKPCKM10_V201_TH_E.doc / 03.07.06 Startup SK-PC-KM-10 • 6

4 Terminal assignment

Detail of X3 and X4

1 2

3 4

5 6

Terminal X1 Exi-Keyboard

Pin

Assignment

Colour coding
for EXTA-K1

Length of cable

1.8 m 10 m

Colour coding
for EXTA-K3 / -K4

Length of cable

1.8 m 10 m

X1.1 Keyboard +5V Green Green Green Green
X1.2 Keyboard GND Yellow Yellow Yellow Yellow
X1.3 Keyboard DATA1 Grey Black or grey Grey Black or grey
X1.4 Keyboard CLK1 Brown Brown Brown Brown
X1.5 GND / Shield Shield Shield Shield Shield

Terminal X2 Exi-Mouse (EXTA-K3 / -K4 only)

Pin

Assignment

Colour coding
for EXTA-K3 / -K4

Length of cable

1.8 m 10 m

X2.1 Mouse +5V Red Red
X2.2 Mouse GND Blue Blue
X2.3 Mouse DATA1 Pink Purple or pink
X2.4 Mouse CLK1 White Orange or white
X2.5 GND / Shield Shield Shield

Terminal assignment • 7 SKPCKM10_V201_TH_E.doc / 03.07.06

Terminal X3 Keyboard to PC Terminal X4 Mouse to PC

Pin Assignment

X3.1
X3.2
X3.3
X3.4
X3.5
X3.6

Data
N.C.
GND
+5V
CLK
N.C.

LEDs

LED Colour Meaning

Us1 Green Power supply for PC keyboard port
Us2 Green Power supply for interface
K Yellow Data from keyboard
M Yellow Data to mouse

Pin Assignment

X4.1
X4.2
X4.3
X4.4
X4.5
X4.6

Data
N.C.
GND
+5V
CLK
N.C.

SKPCKM10_V201_TH_E.doc / 03.07.06 Terminal assignment • 8