Page 1
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX SUPPORT 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 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
Page 2
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.
Page 3
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.
Clamped to 13 volts after 0.1 µs Response Time — Characteristic 100 ohms Impedance — SP250A: Worst pair better than –43 dB at 100 MHz; NEXT Loss — SP251A: Worst pair better than –46 dB at 100 Mhz; Appendix B IEC 801.5 Standard Level Surge Rating —...
Page 6
CHAPTER 1: Specifications DC Clamp Common Mode to Ground: Each line 7.5 volts at 50 mA; Voltage — Differential Mode: Per pair: 8.1 volts at 50 mA External ground strap provides separate unit-ground Grounding — to chassis-ground contact Less than 0.4 dB at 100 Mhz (including connector) Insertion Loss —...
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 2.2 Important Features • Multi-level surge protection • Operation at data rates up to 100 Mbps • EIA/TIA TSB-40A Category 5 compliant • NEXT better than –43 dB at 100 Mhz • Shunts surges directly to chassis ground or building ground •...
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.
Page 10
CHAPTER 3: Installation 3.1.2 T (SP250A) RIMARY URGE ROTECTOR 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 C I/O P ONNECTING THE TO AN...
Page 12
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 Effective January 1996, the European Union requires 801.5 (CE Mark). that all electronic devices be tested and comply with all applicable international standards relating to the product’s type and category of use.
Specific test results are shown in the tables on the following pages. Table B-1. Results of TSB-40A Compliance Testing, Part 1: Typical Near-End Crosstalk Measurements NEXT Measurements for the Primary Surge Protector (SP250A) SOURCE/VICTIM PAIRS Freq. 1-2/3-6 1-2/4-5...
Page 15
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)