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EMO EN-1005+
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EMO SYSTEMS EMO EN-1005+ Datasheet

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ENGLISH
EMOSAFE EN-1005+
Product Datasheet
High Performance Network Isolator

1 FEATURES AND ADVANTAGES

High performance Gigabit Ethernet 5.0 kV AC dielectric strength 8.5 kV DC dielectric strength Conforms to IEC 60601-1 UL Recognized Component ISO 11801 Class D Ethernet performance is achievable Extremely low insertion losses; thereby total cable lengths of 100 metres are achievable ESD-Protection: Transient voltage suppression on all signal lines Suitable for devices with supply voltages up to 400 V AC RoHS compliant 100% inspection of Ethernet performance and dielectric strength by our Quality Control Socket and DIN rail adapter accessories

2 GENERAL DESCRIPTION

EMOSAFE EN-1005+ Network Isolators disconnect every electrically conducting connection (specifically the data and shield conductors) between devices connected together via a copper-based Ethernet net­work. The Network Isolators prevent current flow resulting from differences in electrical potentials, and
also protect connected devices and their users from stray external voltages and power surges which may be directly or inductively coupled onto the network lines by causes such as installation errors, lightning, switching operations, and electrostatic discharge.
Connected to a medical electrical (ME) product, the EMOSAFE EN-1005+ Network Isolator facilitates the safe Ethernet connection of this ME product within the patient environment. The EN-1005+ satisfies all
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construction requirements of IEC 60601-1 (3rd Edition) in the formation of two means of patient protec­tion (MOPP) within the network interface, thereby practically eliminating the risk of electrical shocks aris­ing from such stray external voltages at the network connection. With its UL approval, the EN-1005+ is also suitable for devices destined for export to the North American markets.
The EMOSAFE EN-1005+ is a compact, high-performance Gigabit-capable network isolator, characterised by its excellent Ethernet performance and a very high dielectric withstand voltage. The optional accesso­ries Z-6W and Z-6R provide a range of possibilities for mounting on flat surfaces and DIN rails.
The EN-1005+ is equipped with transient voltage suppression (TVS) diode circuity. While conventional network isolators can only block voltage spikes that occur simultaneously at all signal lines (arising, for example, from potential voltage differences), potentially dangerous or damaging differential voltages on individual signal lines are clipped by the TVS circuity, preventing these voltages from reaching Ethernet devices, operators, and patients. Such differential voltage spikes can be caused, for example, by malfunc­tioning devices connected to the Ethernet, or also by electrostatic discharge events during the plugging processes.
Low-frequency signal components are strongly attenuated, so that connected devices may, for example, be protected against ground loops.
EMOSAFE Network Isolators transmit high-frequency signals through the principle of electromagnetic in­duction. Because of this, they do not require their own power supplies. There are no software drivers to be installed.

3 APPLICATIONS

3.1 PATIENT PROTECTION

Electrical separation of Ethernet interfaces of medical electrical (ME) devices and systems, where patients must be protected from dangerous leakage currents, in conformity with applicable standards.

3.2 EQUIPMENT PROTECTION

Applications, in which valuable devices or those requiring special protection need to be protected against ripple, mains hum, and surge voltages from the network periphery.

3.3 MEASUREMENT TECHNOLOGY

Electrical measuring and monitoring equipment, which needs to be protected against external voltages and interference voltages arising from the Ethernet periphery.

3.4 POTENTIAL DIFFERENCES (TECHNICAL BUILDING SYSTEMS)

Computer systems, which are electrically connected with each other over significant distances via Ether­net cabling, where current flows caused by potential differences must be prevented.

3.5 AUDIO

Audio applications, in which the transmission of low frequency alternating current voltages (mains hum) over the network connection is to be reduced to an imperceptible level.
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4 DRAWINGS

Figure 1. Physical dimensions of the EN-1005+. All dimensions in millimetres.

5 ACCESSORIES

5.1 Z-6W – WALL MOUNTING PLATE FOR EN-1005
The Z-6W Wall Mounting Plate can be used to mount an EN-1005+ on any flat surface. The Z-6W has a snap lock system for coupling and decoupling the EN-1005+. A coupled EN-1005+ can be decoupled from the mounting plate by pressing down on the ends of the snap lock clips with the help of a screwdriver or other suitable tool, as indicated in Figure 4.
The Z-6W can be used to safely mount an EN-1005+ Network Isolator upon metallic surfaces that are not directly connected to a protective earth. The required isolation distance of at least 12 mm between the EN-1005+ and mounting surface is provided by the Z-6W. Refer to Figure 4.
+
Figure 2. Wall Mounting Plate Z-6W accessory for EN-1005+.
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*
Figure 3. Dimensions of accessory Z-6W. All dimensions in millimetres.
Figure 4. Dimensions of an EN-1005+ coupled with Z-6W, as well as decoupling suggestion (lower image).* All dimensions in mm.
Isolation distance between exposed metallic shield contacts and the mounting surface.
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5.2 Z-6R – DIN RAIL ADAPTER FOR EN-1005
With the help of the accessory Z-6R, the EN-1005+ can be mounted on an EN 50022 standard 35 mm DIN rail. The Z-6R is based upon the Z-6W, and has the same features for coupling and decoupling an EN­1005+. The required isolation distances to not only the DIN rail, but also to neighbouring devices, are in­herently ensured by the Z-6R.
Figure 5. Network Isolator EN-1005+ with DIN rail adapter accessory Z-6R.
+
Figure 6. Dimensions of DIN rail adapter accessory Z-6R. All dimensions in millimetres.
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Figure 7. EN-1005+ mounted into the DIN rail adapter accessory Z-6R. All dimensions in millimetres.

6 INSTALLATION INFORMATION

6.1 GENERAL

EN-1005+ Network Isolators are designed to be retrofitted to unprotected Ethernet network devices. It is important to ensure that the conductive parts of the incoming patch cable are kept distanced from all conductive parts of the end device. To ensure permanent protection, it is highly recommended that the Network Isolator is securely mounted in place. With the optional Z-6W socket (see section 5.1), the EMOSAFE EN-1005+ can be securely, yet detachably mounted to any surface, including electrically conduc­tive surfaces, and still provide standard-compliant isolation protection.
Figure 8. EN-1005+ with accessory Z-6W mounted upon a metallic surface.
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6.2 FREQUENCY RANGE

EN-1005+ Network Isolators are designed for data transmission in the frequency range of 300 kHz to 100 MHz. Lower frequencies are strongly attenuated. For this reason, it is generally not possible to trans­mit the signals from nurse call systems, telephone systems or analogue audio / video signals over a Net­work Isolator.

6.3 POWER OVER ETHERNET

The EN-1005+ Network Isolator can be used in a Power over Ethernet (PoE) network without restriction (however PoE devices downstream of the electrical isolation are not supplied with power).

6.4 EQUIPMENT INSTALLATION

When designing Network Isolators into equipment or devices, it is essential that the manufacturer ob­serves the applicable creepage and clearance distances. Specifically, the creepage and clearance dis­tances between exposed metal surfaces of Ethernet patch cables plugged into the Network Isolator, and the next-closest electrically conducting components of the equipment or device to be protected. These distances must be designed to comply with the relevant requirements and standards. If needs be, this next-closest electrically conducting component must be appropriately bonded to the protective earth connection.

6.5 CABLE SHIELD

EN-1005+ Network Isolators also disconnect the shield connections in Ethernet cabling. If the cable shield of the incoming data cable is to be connected with the room or equipment potential, such a connection must be carried out separately before the Network Isolator, effectively bypassing the Network Isolator.

6.6 PERFORMANCE RESERVE REQUIREMENTS UPON FIXED CABLING

EMOSAFE EN-1005+ Network Isolators can also be used to provide permanently installed Ethernet cabling with electrical isolation at the outlet termination. For an Ethernet cabling installation, including its termi­nation of an EN-1005+ Network Isolator, to completely meet the requirements of Permanent Links accord­ing to ISO 11801 Class D or TIA/EIA 568 Cat.5e for Gigabit Ethernet, the cabling itself (without the Net­work Isolator) must provide a performance reserve. The following performance reserves to the Class D or Cat.5e limiting curves must be met without a Network Isolator:
NEXT: 4.0 dB Return Loss: 4.0 dB Insertion Loss: 1.5 dB
If a cabling installation which satisfies this requirement is equipped with an EN-1005+ Network Isolator, the installation as a whole will meet the requirements stated above. As required, this can then be verified using a cable certification device. For this, see also 8.1 Function and Compliance Tests.

7 SAFETY NOTICE

7.1 ASSEMBLY

During assembly, attention should be paid (when applicable) to ensure that the clearance and creepage distances required by IEC 60601-1 are met. The isolating effect of the Network Isolator must not be com­promised by neighbouring conductive components. If, for example, the installation of the Network Isola­tor is to be within a metal plate, this plate must be connected to the ground potential (protective earth).
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As a matter of principle, Network Isolators should be mounted as close as possible to the equipment re­quiring protection.

7.2 ENCLOSURE AND CONNECTION AREAS

The Network Isolator provides excellent protection between input and output, however the plastic enclo­sure provides only basic isolation. Furthermore, the connected plugs and the areas around the recepta­cles may have metal surfaces accessible to human contact, and therefore provide no protection. If the risk management process of the responsible organisation (i.e. manufacturer or operator, as defined in IEC 60601-1) reveals unacceptable risks that operators or patients can touch the housing or exposed conduct­ing parts while the Ethernet cabling is connected to a potentially dangerous voltage, the Network Isolator and the exposed conducting surfaces must be surrounded with an appropriate enclosure to ensure the required means of protection for the application.

7.3 DAMAGE AND CONTAMINATION

Damaged Network Isolators, and Network Isolators which are contaminated by dust or liquids, are to be replaced.

8 FUNCTION AND SAFETY TESTS

8.1 FUNCTION AND COMPLIANCE TESTS

A cable run equipped with an EN-1005+ Network Isolator can be checked with regard to its transmission characteristics using cable certification devices which are suitable for testing an electrically isolated cable run. To be able to conduct such an inspection, the test equipment must be configured in an AC wire-map mode. With the installed Network Isolator, the entire cable run can be approved according to EIA/TIA­568 Cat.5e or ISO 11801 Class D. Testing of the cable shielding and the individual conductor resistance is not possible in such an AC test mode.

8.2 SAFETY INSPECTIONS

Regular safety inspections and post-repair inspections are not prescribed for Network Isolators in medical use, as Network Isolators themselves are not classified as medical electrical (ME) devices. However, to­gether with a connected ME device, Network Isolators form part of an ME system, which altogether may be subject to statutory inspection. The test interval, as well as the requirements to be met for both regu­lar safety inspections and post-repair inspections will be specified by the responsible organisation (e.g. manufacturer or operator as defined by the regulations), and based upon the applicable standards for the entire ME system.
To simplify implementation, the individual components of the ME system (in this case, the Network Isola­tor) can be tested separately. Here as well, the responsible organisation specifies the test parameters, test interval and in the event of a failed test, the consequences. Depending on the requirement profile, the test can include one or more of the following individual tests:

8.2.1 VISUAL INSPECTION

Check for evidence of external damage and ingress of substances; dust or liquids for example.
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8.2.2 LEAKAGE CURRENT TEST

It is to be checked if the measured leakage current is still within the prescribed limits. For this purpose, test equipment which can perform equipment leakage current measurements in accordance with IEC 62353 may be used. To perform a leakage current test, all conductors on the input side must be short-circuited together, and all the conductors on the output side must also be short-circuited together. The AC test voltage specified by the responsible organisation is then applied across these two connec­tions. Input and output sides are interchangeable. The expected current flow can be found in section 9
Specifications.

8.2.3 HIPOT TEST

To ensure that the device under test is not damaged, it is recommended that a DC voltage source is used in place of the AC voltage source, and that the DC voltage is 1½ times that of the required AC voltage. The test setup is essentially the same as that of the Leakage Current Test above. The expected dielectric strength can be found in section 9 Specifications.

8.2.4 FUNCTIONAL TEST

After conducting the tests above, and reconnecting the Network Isolator into the Ethernet network, it is recommended to check whether the signal transmission is still performing correctly. Such a functional test can be performed, for example, with a suitable Ethernet cable certification device. See also section
8.1 Function and Compliance Tests.
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Category
Standards or Test Criteria
Property
Designation
EMOSAFE EN-1005+
Article number A10065
Housing colour Grey
Housing Material Plastic
Construction Self-Enclosed
Input Interface
RJ45 Jack, straight
Output Interface
RJ45 Jack, straight
Weight approximately 30 g
Protection rating
EN 60529
IP40
Mating cycles: Correct:
RJ45 plug in RJ45 socket
> 1000 cycles
Mismatched:
with RJ11 / RJ12 / RJ25
maximum of 100 cycles
Mean Time To Failure (MTTF) SN 29500 Standard
Temperature: 25°C Duty cycle: 100% (24 hours, 7 days)
3,230 years
SN 29500 Standard Temperature: 40°C Duty cycle: 100% (24 hours, 7 days)
3,060 years
Category
Standards or Test Criteria
Property
Transmission Speeds and Supported Network Proto­cols
10 Mbit/s, 10Base-T (IEEE802.3 Cl.14)
100 Mbit/s, 100Base-Tx (IEEE802.3 Cl.25)
1000 Mbit/s, 1000Base-T (IEEE802.3 Cl.40)
Performance Category
ISO 11801, Channel (CH)
Class D
Insertion Loss (absolute) at 100 MHz
Typical:
0.7 dB
Maximum:
1.0 dB
Return Loss (absolute) at 100 MHz
Typical:
20.0 dB
Minimum:
16.0 dB

9 SPECIFICATIONS

9.1 GENERAL

9.2 ETHERNET PERFORMANCE

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Category
Standards or Test Criteria
Property
AC Dielectric Strength
at 50 Hz, for 60 seconds
5.0 kV
DC Dielectric Strength
for 60 seconds
8.5 kV
Reinforced Isolation
IEC 60601-1
Coupling Capacitance per Channel
37.5 pF ±25%
Total Coupling Capacitance
150 pF ±25%
Total Leakage Current
275 V AC at 50 Hz
Typical:
12.0 µA
Maximum:
16.0 µA
TVS Diode Circuitry
Suppression of transients on the signal lines
Category
Standards or Test Criteria
Property
Pollution Degree
IEC 61010
2 *
Overvoltage Category
IEC 60664-1
III
Maximum Working Voltage †
Maximum mains voltage of the connected de­vices, in accordance with IEC 60601-1
400 V AC 450 V DC
Temperature
Minimum:
-10°C
Maximum:
+70°C
Air Humidity
Non-condensing
Minimum:
10%
Maximum:
90%
Air Pressure
Minimum:
700 hPa
Maximum:
1,060 hPa
*
†

9.3 ELECTRICAL

9.4 OPERATING CONDITIONS AND AREA OF APPLICATION

Normally only nonconductive pollution occurs. Temporary conductivity caused by condensation is to be expected. The Network Isolator can be permanently exposed to this voltage level.
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Category
Standards or Test Criteria
Property
Temperature
Minimum:
-40°C
Maximum:
+70°C
Air Humidity
Non-condensing
Minimum:
10%
Maximum:
90%
Air Pressure
Minimum:
500 hPa
Maximum:
1,060 hPa
Category
Property
UL Recognized Component
UL File No.
E249126 E362969
IEC 60601-1
IEC 60601-1-2
ANSI/AAMI ES 60601-1
CAN/CSA-C22.2 No. 60601-1
Low Voltage Directive
EMC Directive
RoHS Directive
Lead-free

9.5 ENVIRONMENTAL CONDITIONS: STORAGE AND TRANSPORTATION

9.6 CERTIFICATES

The versions of the cited standards and directives to which our products comply with can be found in our Declaration of Conformity and our UL certificate on our website under "Standard Conformity and Certifi-
cates".
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Area
Number and
type of Means
of Protection
Material
Group
(from CTI)
Maximum
Operating Voltage
Required creepage
distance
(mm)
Required clearance
distance
(mm)
Measured
creepage
distance
(mm)
Measured
clearance
distance
(mm)
V AC
V
peak
A
2 MOPP *
IIIb †
400
565
12.0
7.0
12.4
12.4
*
†
A
Ethernet
Input/Output
Ethernet
Input/Output
Plastic enclosure

9.7 ISOLATION DIAGRAMS

Figure 9. Isolation diagram for EN-1005+.
For additional information see also chapter 7.2 Enclosure and Connection Areas.
MOPP = Means of Patient Protection
Materials in the Material Group IIIb have a Comparative Tracking Index (CTI) value between 100 and 175.
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9.8 FREQUENCY RESPONSE

Figure 10. Typical frequency response for EN-1005+.
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10 SCHEMATIC DIAGRAM

11 PACKAGING

Contents:
EN-1005Installation Guide
A packaging label provides the following information:
Article description Quantity Date of manufacture Part number Serial number
The serial number is printed as both a 1D- (Code 128) and a 2D barcode (Data Matrix).
+
Figure 11. Schematic diagram of the EN-1005+.
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Through this mark, the conformity of the product with all applicable EU Directives is confirmed.
Designates the product as a UL "Recognised Component"; File number E249126 and E362969.
The product may not be disposed of in domestic rubbish.
This product contains no substances containing lead and is manufactured using lead­free solder.
This product meets the requirements of EU Directive concerning the limitation of the use of certain hazardous substances in electric and electronic equipment.

12 PRODUCT MARKINGS

13 SCHEDULED MAINTENANCE

When used as directed, EMOSAFE Network Isolators are maintenance-free.

14 ENVIRONMENTAL PROTECTION INFORMATION

This device contains electronic components. At the end of its service life it is to be returned to the manu­facturer for disposal.

15 QUALITY

EMO Systems operates a certified quality management system for development and production in ac­cordance with ISO 9001 and ISO 13485. Prior to delivery, each Network Isolator is subjected to a compre­hensive quality inspection. This inspection ensures, among other factors, that the attained values for leakage currents, dielectric withstand strengths, insertion losses, return losses, and near end crosstalk values all meet the specified requirements.

16 CONTACT AND SUPPORT

Please find our up-to-date contact details on our website: http://www.emosystems.de/en/contact
Or send us an e-mail at the following address: [email protected]
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17 LEGAL NOTIFICATION

The information provided above in this datasheet has been compiled with all due care, and is believed to be accurate and reliable. However, we cannot guarantee that the information contained is completely free from error.
The end user is responsible and liable for the proper use of this product; EMO Systems assume no liability. We reserve the right to make changes to this datasheet without notice.
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