ENGLISH EMOSAFE EN-85e Product Datasheet Network Isolator with Overtension Auto-Release 1 FEATURES AND ADVANTAGES 1.1 OVERVIEW High Performance Gigabit Ethernet 4.6 kV AC dielectric strength 8.5 kV DC dielectric strength Overtension Auto-Release (OTAR) Designed and tested to meet IEC 60601-1 UL Recognized Component ISO 11801 Class D Ethernet Performance attainable Extremely low insertion losses thereby total cable lengths of 100 metres are achievable Suitable for devices with supply voltages up to 400 V AC RoHS compliant 100% inspection by our Quality Control 1.2 OVERTENSION AUTO-RELEASE (OTAR) Figure 1. Overtension Auto-Release (OTAR) system automatically decouples the Ethernet cable under excessive loading. The overtension auto-release (OTAR) system incorporated into the EN-85e offers, in addition to the elec- trical protection provided by EMOSAFE Network Isolators, a mechanical protection to the Ethernet inter- face. A common cause of failure for potentially expensive equipment arises from mechanical damage to Ethernet sockets resulting from excessive tensile or lateral forces. These forces act upon RJ45 sockets and PD1119-V20 Page 1 of 14 2017 EMO Systems GmbH EMO Systems GmbH Rungestr. 19 D-10179 Berlin Phone: +49 . 30 . 4000 475-80 Fax: +49 . 30 . 4000 475-90 www.emosystems.de/en ENGLISH their supporting circuit boards, potentially damaging them beyond repair. Such forces can arise, for example, when movable Ethernet devices are moved further than their connect- ing Ethernet cable naturally allows, or when people accidentally trip over attached patch cables. When the EN-85e is plugged into an Ethernet socket of a device to be electrically protected, the socket is simul- taneously protected against such hazards. The OTAR socket of the connected Network Isolator simply re- leases the Ethernet cable automatically when applied tensile forces exceed a defined limit. 2 GENERAL DESCRIPTION The EMOSAFE EN-85e Network Isolator disconnects every electrically conducting connection (specifically the data and shield conductors) between devices connected together via a copper-based Ethernet net- work. The Network Isolator prevents current flow resulting from differences in electrical potentials, and also protects 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-85e Network Isolator facilitates the safe Ethernet connection of this ME product within the patient environment. The EN-85e satisfies all construc- tion requirements of IEC 60601-1 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 ex- ternal voltages at the network connection. With its UL approval, the EN-85e is also suitable for devices destined for export to the North American markets. Low-frequency signal components are strongly attenuated, protecting connected devices from ground loops. EMOSAFE Network Isolators transmits high-frequency signals through the principle of electromagnetic induction. The Network Isolator therefore does not require any external power supply. There are no soft- ware 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 or critical devices or devices requiring special protection need to be pro- tected against ripple, mains hum, and surge voltages from the network periphery. Through its OTAR functionality, the EN-85e protects against damage to the RJ45 interface in the attached end device. Refer to section 1.2 OVERTENSION AUTO-RELEASE (OTAR). 3.3 MEASUREMENT TECHNOLOGY Electrical measuring and monitoring equipment, which needs to be protected against external and inter- ference voltages arising from the Ethernet periphery. PD1119-V20 Page 2 of 14 2017 EMO Systems GmbH EMO Systems GmbH Rungestr. 19 10179 Berlin Phone: +49 . 30 . 4000 475-80 Fax: +49 . 30 . 4000 475-90 www.emosystems.de/en