Black Box 39005 Network Router User Manual
Contents
1. Local fiber optic modem in digital loop mode Distant fiber optic modem Figure 5 2 Data Signals at Digital Loop Mode CHAPTER 5 Data Signals Local fiber optic modem switched Fiber optic modem forced to loop to remote loop mode mode by other modem DTI Figure 5 3 Data Signals at Remote Loop Line Loop Mode Table 5 1 G 703 Pinout Female Input Output Output Input Input Output Output Input Feel E rines a ie 16 Figure 5 4 G 703 Connector 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 Dispersion occurs in high speed links and causes degradation of fiber optic signals disabling the receiver that would interpret them correctly The analysis of the planned fiber optic link is a two step process First you must calculate the attenuation of the complete system to ensure that the units can cope with the losses of the link Then you must enter the intended distance between the units into the operation diagram see Figure A 2 Make sure the distance is confirmed by the calculation above These calculations are explained in Section A 2 When you calculate the maximum range keep in mind that extremely short cabling2. dB Line impedance 100 or 120 Q Temperature Tolerance Operating 41 to 104 F 5 to 40 C Storage 22 to 176 F 30 to 80 C Humidity 10 to 90 noncondensing Power 115 VAC external power supply 60 Hz 12 W Size 1 5 H x 5 8 W x 8 8 D 3 8 x 14 7 x 22 4 cm Weight 5 5 lb 1 5 kg Optical specifications are valid at 77 F 25 C Depends on setup 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 Connections between buildings become possible since no lightning currents can arise 2 2 Features e Extend or interconnect T1 lines PBXs or T1 muxes across distances up to 3 miles 4 8 km via a pair of these devices e For line simulation the device is transparent to equipment framing and encoding PBXs and multiplexors act like they re directly connected to a TI circuit e EMI RFI and lightning hazard immunity is provided by the fiber link 2 3 Typical Application T1 Fiber Optic Line ETT Extender Simulator Imm E Te ee EE T1 Fiber Optic Line Extender Simulator CHAPTER 3 Connectors Indicators and Controls 3 Connectors Indicators and Controls Figure 3 1 Front and Rear Panels Table 3 1 Connectors Indicators and Co
3. lt gt Bl ACK BOX A 39004 39005 T1 Fiber Optic Line Extender Simulator SSS SS SS SS ST SS SS SS ES ES SS SS A E A BRETT Order toll free in the U S 24 hours 7 A M Monday to midnight Friday 877 877 BBOX CUSTOMER SUPPORT FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 INFORMATION Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com FCC INFORMATION FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS 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 It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the e
4. without splices etc max cable 2 length fiber optic power budget cable 2 att factor 17 dB 3 dB km 5 6 km Example 3 Minimum cable quality to bridge 5 km single cable without splices or patches cable att factor cable att cable length 17 dB fiber optic power budget 5 km 3 4 dB km T1 Fiber Optic Line Extender Simulator T1 Fiber Optic Line Extender Simulator Distance Figure A 1 Attenuation diagram s 4A APPENDIX Fiber Optic Planning Guidelines STEP 2 OVERALL OPERATION CONSIDERATIONS 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 value of the fiber optic pulse width of the affected units 2 Calculate the maximum total distance based on the calculations above and draw a vertical line 3 Choose the correct dispersion line based on fiber optic transmitter type 4 Shade the allowed operation range as shown in Figure A 2 To be found in the technical data section of the units documentation Industry standard cable quality assumed 18 ps nm km O 1550 nm A 3 Operation Diagram Example Physical operation restrictions for a unit with 1550 nm standard laser a fiber optic pulse width between 10 and 100 ns and a calculated maximum distance between the units of 60 km The operation you choose must be inside the allowed shaded area
5. NOTE The right border of the operation area is defined by the dispersion or distance line whichever comes first leftmost Some units use only one discrete fiber optic pulse width In this case the allowed operation area collapses to a horizontal line If there is no dispersion line for the used fiber optic transmitter type dispersion can be ignored T1 FIBER OPTIC LINE EXTENDER SIMULATOR Figure A 2 Operation Diagram APPENDIX Fiber Optic Planning Guidelines Use the example on the previous page as a reference when filling in information for your application below FO pulse wich NE a1 100 1000 07 1 10 100 d km Figure A 3 Your Application lt BLACK BOX Copyright 2000 Black Box Corporation All rights reserved 1000 Park Drive Lawrence PA 15055 1018 724 746 5500 e Fax 724 746 0746
6. any jumpers Fiber Optic Output Power T1 FIBER OPTIC LINE EXTENDER SIMULATOR Table 4 1 continued Key Jumper and Switch Settings Setting Description Sample mode for incoming intermediate frequency I F data 1 Data sampled on positive clock edge std Data sampled on negative clock edge Interface Mode NT Network Termination TE Terminal Equipment 10 Interface Pin 1 Potential m Floating 7 Connected to frame ground Transmission Mode Switch setting is mandatory Switches 1 2 and 4 must be in OFF position Switch 3 must be in ON position Test connector Do not install any jumpers Table 4 2 Fiber Optic Signal FO S LED Off No power supplied Slow Flash 1 5 s No fiber optic link established Fast flash 5 s Fiber optic link OK but no clock sync On Fiber optic link OK and clock sync OK CHAPTER 4 Setup Clock Mode Comments e Internal The clock is generated by the internal clock generator e External The clock is provided by the local equipment e Remote The local modem receives the clock via the link from the distant modem The distant modem must be set to Internal or External sing le clock source fortmanemt and receve Wariart 1 Modem Mod em 2 Variant 2 Modem Figure 4 2 Possible Synchronous Clock Configurations 5 Data Signals Local fiber optic modem Ll in normal mode Distant fiber optic modem Lini Figure 5 1 Data Signals at Normal Mode
7. can be problematic too Avoid receiver overload conditions for proper data transmission For wavelength multiplexing WDM equipped units you must perform the calculations for each wavelength independently twice total You must operate the WDM equipped counterparts within the restrictions defined by both resulting operation diagrams Please observe that the optical power budget stated in the documentation of a WDM equipped unit is valid for the transmitted wavelength only The optical power budget for the received wavelength can be found in the documentation of the counterpart unit APPENDIX Fiber Optic Planning Guidelines A 2 Fiber Optic Calculation STEP 1 ATTENUATION CONSIDERATIONS 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 The remainder of the originally transmitted light at the receiver must be at least as high as the minimum receiver sensitivity Generally you should project a link margin of at least 3 dB to allow aging and fiber repairs Use the formulas described below to calculate the attenuation values for your system e optical power budget max of transmitter output power min of receiver operation range The stated optical power budget does not include irregular light propagation modes At short distances
8. n las instrucciones de operaci n Todo otro servicio deber ser referido a personal de servicio calificado El aparato el ctrico debe ser situado de tal manera que su posici n no interfiera su uso La colocaci n del aparato el ctrico sobre una cama sofa alfombra o superficie similar puede bloquea la ventilaci n no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilaci n El equipo el ctrico deber ser situado fuera del alcance de fuentes de calor como radiadores registros de calor estufas u otros aparatos incluyendo amplificadores que producen calor El aparato el ctrico deber ser connectado a una fuente de poder s lo del tipo descrito en el instructivo de operaci n o como se indique en el aparato B AO o 4 12 Precauci n debe ser tomada de tal manera que la tierra fisica y la polarizaci n 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 atenci n a los contactos y recept culos donde salen del aparato 14 El equipo el ctrico debe ser limpiado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo pe
9. ntrols mu Connector Indicator or Control TX LED Transmitting binary O via fiber optic G 703 connector FO S LED Power FO Link sync LL LED Unit in line loop mode DL LED Unit in digital loop mode Loop mode button ST connector for fiber optic receiver ST connector for fiber optic transmitter C LED G 703 signal present RX LED Receiving binary O via fiber optic NN OO O1 R ND O Power connector Both LEDs lit Unit is in remote loop mode S VW T1 FIBER OPTIC LINE EXTENDER SIMULATOR 4 Setup Main board Front panel Back panel Ir e ace Module Figure 4 1 Location of Jumpers on the Printed Circuit Board CHAPTER 4 Setup Table 4 1 Key Jumper and Switch Settings 1 Loop Mode Key Press the key switches through the Normal operation following operating modes Normal operation Digital Dig tad loop loop Remote loop The unit enters loop mode when the aan bop distant modem gets switched to remote loop 2 Clock Source Internal Remote External 3 Interface Speed Position D 1 544 kbps 1544 All other settings are not applicable 4 LED REM Kode and Clock SyaemMode _ LED REM follows LED FE M remate Hh bardeh falis FO ard FO link amp aus ink atus ERN _ single cbck Se parale clock sucefortraremk mucefortranemr and recae ad recene 5 Processor Connector Not used Do not install any jumpers 6 MN For factory use only Do not install
10. quipment This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of Industry Canada Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la classe A prescrites dans le R glement sur le brouillage radio lectrique publi par Industrie Canada T1 FIBER OPTIC LINE EXTENDER SIMULATOR 10 pL NORMAS OFICIALES MEXICANAS NOM ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD Todas las instrucciones de seguridad y operaci n deber n ser le das antes de que el aparato el ctrico sea operado Las instrucciones de seguridad y operaci n deber n ser guardadas para referencia futura Todas las advertencias en el aparato el ctrico y en sus instrucciones de operaci n deben ser respetadas Todas las instrucciones de operaci n y uso deben ser seguidas El aparato el ctrico no deber ser usado cerca del agua por ejemplo cerca de la tina de bano lavabo s tano mojado o cerca de una alberca etc El aparato el ctrico debe ser usado nicamente con carritos o pedestales que sean recomendados por el fabricante El aparato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito e
11. riodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilaci n 18 Servicio por personal calificado deber ser provisto cuando A El cable de poder o el contacto ha sido da ado u B Objectos han ca do o l quido ha sido derramado dentro del aparato o C El aparato ha sido expuesto a la lluvia o D El aparato parece no operar normalmente o muestra un cambio en su desempe o o E El aparato ha sido tirado o su cubierta ha sido da ada General Safety Precautions Transport Installation and Operation e Avoid excessive vibration and shocks e Avoid contact with water and dust e Avoid excessive direct sunlight e Ensure sufficient cooling e Prevent loose items from falling into the device Fiber Optics e Looking into the fiber optic output can cause injury to the eyes When observation is necessary avoid exceeding the limits recommended in ANSI Z136 1 1981 Mains Power e Disconnect the power cord before opening the device e Use exclusively the included power supply with an approved power cord e The power plug must be plugged into a properly grounded receptacle An improperly wired receptacle could place hazardous voltage on accessible metal parts of the device e The mains supply must match the Simulator s power specification e Replace blown fuses with fuses of the exact type and rating e Do not work on the equipmen
12. t during periods of lightning activity 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 T1 FIBER OPTIC LINE EXTENDER SIMULATOR Contents LS DECO bes bold 7 AM O PR TP 8 2d DES IPUON ne cee ae dde eo ta tou 8 A 245 ri M EPELE TE EE EEEE 8 2 9 Typical APPCAON ES iire shooter 8 3 Connectors Indicators and Controls 9 Ll E ee ee ee ee ee ee 10 D DA SONS 144 hu ot Beh eed hh Reed he hee eee esa anus 14 Appendix Fiber Optic Planning Guidelines 16 AA TO o et tesoros QURE ea Heide ton ner sues RU ct 16 A 2 Fiber Optic Calculado s eosam acta ut tups 9 BrbatRans di coa 17 AO DO AUD IAE PAM DP c erent ess es 20 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 703 DS1 Fiber Dual ST multimode or single mode Connectors DB15 for DTE dual ST for fiber Indicators and Buttons 6 LEDs TX RX FO S C LL DL 1 Loop mode button Optical Standard 1300 nm SM LED Pulse width 648 ns Transmitter output power 13 or 18 dBm Pairs optical power budget 9 125 um 18 dB Receiver operation range 15 through 31 dBm G 703 Transmit level 15 7 dBm Maximum attenuation 6
13. these modes increase the optical power at the receiver The increase depends mainly on fiber optic mode and cable quality Consider the irregular light propagation modes at multimode only and add about 3 dB This amount is included in the stated multimode transmitter output values e total system att sum of all discrete attenuations as shown in Figure A 1 This value is the attenuation of the link due to the link components e cable length cable attenuation cable att factor This formula is used to calculate cable length or resulting attenuation The cable att factor is provided by the cable producer Example values for calculations below See Figure A 1 Fiber optic power budget of the combination unit 1 unit 7 17 dB Cable att factor of cables 2 4 and 6 3 dB km Cable 4 1 km Cable 6 2 km Splice 5 loss 1 dB Connector loss at patch panel 3 2 dB Example 1 Maximum length of cable 2 cable 4 att 1 km 3 dB km 3 dB cable 6 att 2 km 3 dB km 6 dB right part att Conn loss 3 cable 4 att splice 5 loss cable 6 att right part att 2 dB 3 dB 1 dB 6 dB 12 dB MA 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
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