JANUARY 1996 SP250A SP251A Category 5 Primary and Secondary Surge Protectors TM TM 1A P25 e: S Cod : S/N CUSTOMER SUPPORT INFORMATION 0A P25 e: S Cod : S/N Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.
NOM STATEMENT NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4. Todas las instrucciones de operación y uso deben ser seguidas. 5.
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato. 14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante. 15.
TABLE OF CONTENTS Contents Chapter Page 1. Specifications ........................................................................................ 6 2. Introduction ......................................................................................... 8 2.1 General Overview .......................................................................... 8 2.2 Important Features ....................................................................... 9 3. Installation .........................................
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS 1. Specifications Compliance — Standards — Interfaces — EN50082-1:1992 (including ISO [IEC] 801.2, 801.4, and 801.5), EIA/TIA TSB-40A Compatible with IEEE 802.3 Ethernet, low-speed (4-Mbps) IEEE 802.5 Token Ring, and IEEE 802.
CHAPTER 1: Specifications DC Clamp Voltage — Common Mode to Ground: Each line 7.5 volts at 50 mA; Differential Mode: Per pair: 8.1 volts at 50 mA Grounding — External ground strap provides separate unit-ground to chassis-ground contact Insertion Loss — Less than 0.
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS 2. Introduction 2.1 General Overview Devices connected to Category 5 cabling systems are routinely threatened by unwanted electrical energy from sources such as lightning, AC-power induction, and ESD. Higher-speed devices—such as those operating at 100 Mbps—are especially vulnerable to the effects of these hazards, which can include data loss and hardware damage.
CHAPTER 2: Introduction 2.
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS 3. Installation The Category 5 Surge Protectors are easy to install and are designed to be transparent to your network while they operate. This section describes the applications for which each model is designed and the procedures that you will use to install each model. 3.1 Applications Both Surge Protectors protect all eight pins on the modular RJ-45 Category 5 interface, and they both work in environments with data rates up to 100 Mbps.
CHAPTER 3: Installation 3.1.2 THE PRIMARY SURGE PROTECTOR (SP250A) The Primary Surge Protector (PSP) is a more robust protector than the Secondary Surge Protector, and is designed for use as a barrier protector on LAN equipment in campus networks. Applications include cable runs between buildings, cable runs between floors on multi-story structures, and as a higher-capacity replacement for the SSP.
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS 3.2 Installation Procedures In order to operate as designed, the Surge Protectors must be connected correctly to your Category 5 network. Please read all the instructions below and follow them carefully. 3.2.1 CONNECTING THE PSP OR SSP TO AN I/O PORT 1. Turn off or power down the the device you want to connect the Surge Protector to. Disconnect the specific twisted-pair line you want to protect from the device port it is currently attached to. 2.
CHAPTER 3: Installation 4. Attach the Surge Protector’s braided ground strap directly to the chassis-ground connection point you have located (see Figure 3-3 on the previous page). The best way to make this connection is to attach the braided metal strap using a hex nut or screw on your device. CAUTION! Surge energy may run both directions on the ground strap.
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS Appendix A: IEC Compliance These Category 5 Surge Protectors meet IEC standards 801.2, 801.4, and 801.5 (CE Mark). Effective January 1996, the European Union requires that all electronic devices be tested and comply with all applicable international standards relating to the product’s type and category of use.
APPENDIX B: EIA/TIA TSB-40A Compliance Appendix B: EIA/TIA TSB-40A Compliance The Category 5 Primary and Secondary Surge Protectors have been designed to conform to stringent EIA/TIA TSB-40A standards as required for all Category 5 connecting hardware. These standards specify capacitance and near-end crosstalk (NEXT) limits to help ensure proper operation of all connected equipment. Specific test results are shown in the tables on the following pages. Table B-1.
CATEGORY 5 PRIMARY AND SECONDARY SURGE PROTECTORS Table B-2. Results of TSB-40A Compliance Testing, Part 2: Typical Attenuation Measurements Attenuation Measurements for the Primary Surge Protector (SP250A) Freq. Pins 1-2 Pins 3-6 Pins 4-5 Pins 7-8 SPEC (MHz) (dB) (dB) (dB) (dB) (dB) 1 4 8 10 16 20 25 31.25 62.5 100 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.2 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.2 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.1 0.2 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.3 0.1 0.1 0.1 0.1 0.2 0.2 0.
APPENDIX B: EIA/TIA TSB-40A Compliance Table B-3. Results of TSB-40A Compliance Testing, Part 3: Typical Return-Loss Measurements Return-Loss Measurements for the Primary Surge Protector (SP250A) Freq. Pins 1-2 Pins 3-6 Pins 4-5 Pins 7-8 SPEC (MHz) (dB) (dB) (dB) (dB) (dB) 1 4 8 10 16 20 25 31.25 62.5 100 27.4 37.3 40.8 39.6 37.0 35.0 34.5 35.0 24.2 19.0 27.6 38.0 42.3 40.0 34.0 30.8 24.4 23.5 28.7 27.0 28.4 49.0 37.8 35.7 32.3 31.0 29.8 30.0 22.0 18.3 28.0 42.5 38.7 35.4 33.0 31.6 30.4 30.5 22.5 19.
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