Manuale d’uso / di manutenzione del prodotto 39004 del fabbricante Black Box
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CUSTOMER SUPPORT INFORMATION 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.
1 FCC INFORMATION FEDERAL COMMUNICA TIONS COMMISSION AND INDUSTR Y CANADA RADIO FREQUENCY INTERFERENCE ST A TEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
2 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY ST A TEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado.
3 NOM STATEMENT 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 .
4 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR General Safety Precautions T ransport, Installation, and Operation • Avoid excessive vibration and shocks. • Avoid contact with water and dust. • Avoid excessive direct sunlight. • Ensure sufficient cooling.
5 TRADEMARKS TRADEMARKS USED IN THIS MANUAL ST ® is a registered trademark of American Telephone and Telegraph Company. Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
6 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR Contents 1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 CHAPTER 1: Specifications 1. Specifications Maximum Distance— 39004: 3 mi. (4.8 km) @ 16 dB; 39005: 24 mi. (38.6 km) @ 16 dB Speed —1.544 Mbps Interface —DTE: T1, G.
8 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR 2. Introduction 2.1 Description The T1 Fiber Optic Line Extender/Simulator lets you combine fiber optic technology with standard interfaces at 1.544 Mbps. The advantages are increased transmission distances and immunity to electrical interference.
9 CHAPTER 3: Connectors, Indicators, and Controls 3. Connectors, Indicators, and Controls Figure 3-1. Front and Rear Panels. T able 3-1. Connectors, Indicators, and Controls No. Connector , Indicator , or Control 1 TX LED: Transmitting binary 0 via fiber optic 2 G.
10 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR 4. Setup Figure 4-1. Location of Jumpers on the Printed Circuit Boar d. Main board Front panel Back panel.
11 CHAPTER 4: Setup T able 4-1. Key , Jumper , and Switch Settings Number Setting Description 1 Loop Mode Key: Press the key switches through the following operating modes: Normal operation, Digital loop, Remote loop. The unit enters loop mode when the distant modem gets switched to remote loop.
12 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR T able 4-1 (continued). Key , Jumper , and Switch Settings Number Setting Description 8 Sample mode for incoming intermediate frequency (I/F) data Data sampled on positive clock edge (std.
13 CHAPTER 4: Setup Clock Mode Comments: • Internal: The clock is generated by the internal clock generator. • External: The clock is provided by the local equipment. • Remote: The local modem receives the clock via the link from the distant modem.
14 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR 5. Data Signals Figure 5-1. Data Signals at Nor mal Mode. Figure 5-2. Data Signals at Digital Loop Mode. Distant fiber optic modem Local fiber optic modem in .
15 CHAPTER 5: Data Signals Figure 5-3. Data Signals at Remote Loop/Line Loop Mode. T able 5-1. G.703 Pinout (Female) Pin Signal T erminal End Network T ermination 2 R A Input Output 4 T A Output Input 9 R B Input Output 11 T B Output Input Figure 5-4.
16 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR Appendix: Fiber Optic Planning Guidelines A.1 Introduction Designing a fiber optic link means considering two main physical limitations: System attenuation and fiber optic dispersion. Attenuation results when properties of the fiber optic link reduce the intensity of the fiber optic signals.
17 A.2 Fiber Optic Calculation S TEP 1: A TTENUATION C ONSIDERATIONS Figure A-1 shows the various elements of the fiber optic link that decrease light intensity. Depending on the real installation, you must subtract a series of attenuation (att.) values from the raw optic output level of the fiber optic transmitter.
18 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR (max, cable [2] att.)=(fiber optic power budge) - (right part att.) = 17 dB - 12 dB = 5 dB. (max. cable [2] length) = (max.cable [2] att.)/(cable [2] att. factor) = 5 dB/3 dB/km = 5.6 km Example 2: Maximum length of cable [2] when connected directly (without splices, etc.
19 APPENDIX: Fiber Optic Planning Guidelines S TEP 2: O VERALL O PERATION C ONSIDERATIONS The operation diagram ( Figure A-2 ) shows one example diagram and one blank diagram to be completed based on real values: 1. Draw horizontal lines at the min. and max.
20 T1 FIBER OPTIC LINE EXTENDER/SIMULATOR Figure A-2. Operation Diagram.
21 Use the example on the previous page as a reference when filling in information for your application below. Figure A-3. Y our Application. APPENDIX: Fiber Optic Planning Guidelines.
1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746 © Copyright 2000. Black Box Corporation. All rights reserved..
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Black Box 39004 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Black Box 39004 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Black Box 39004 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Black Box 39004 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Black Box 39004, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Black Box 39004.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Black Box 39004. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Black Box 39004 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
