Universal Fiber Optic Line Driver
Contents
1. 6 position T R DIP switch Baud Rate T R Time 1 2 3 4 5 6 2400 473 ms Off Off Off Off Off On 4800 220 ms Off Off Off Off On Off 9600 1 10 ms Off Off Off On Off Off 19 2K 620 us Off Off On Off Off Off 38 4K 300 us Off On Off Off Off Off 57 6K 180 us On Off Off Off Off Off 76 8K 150 us On Off On On Off Off 115 2K 110 us On On On Off Off Off After transmitting the last data bit the above settings will determine how long the transceiver continues to wait in the transmit mode for data before reverting to the receive state The times specified are only recommendations but will be cor rect for most applications If desired they can be varied to meet specific data requirements No end of line terminating resistors are provided If required they must be connected externally MD650A 85 MD650A 13 INSTALLATION RS 485 4 Wire Drop and Repeat Data Derived T R 8 position MODE DIP switch 3 4 5 6 T 8 off Off On off Off On 6 position T R DIP switch Baud Rate T R Time 1 2 3 4 5 6 2400 4 73 ms Off Off Off Off Off On 4800 2 20 ms Off Off Off Off On Off 9600 1 10 ms Off Off Off On Off Off 19 2K 620 us Off Off On Off Off Off 38 4K 300 us Off On Off Off Off Off 57 6K 180 us On Off Off Off Off Off 76 8K 150 us On Off On On Off Off 115 2K 110 us On On On Off Off Off After transmitting the last data bit the above settings will determine how long the transceiver continues to wait in the transmit mode for data before revert2. 850 nm or 1310 nm Optical ComnectolS ccooooocnnnonnnnnonnnoss ST MM Operating 35 to 75 degrees C Note that as provided from the factory the universal data transceiver is set to the RS 232 point to point 200 kbps and low speed modes of operation In the low speed mode the unit will operate with all duty cycles including DC logic 0 or logic 1 continuously In the high speed mode of operation the system will operate properly with all duty cycles from 50 50 to 70 30 A MD650A 85 MD650A 13 INSTALLATION Installation Procedure There are no operating controls on the Universal Fiber Optic Line Driver Simply set the mode of operation with the internal DIP switches and then connect the signal power supply and fiber optic cables between the two units Connect the data processing equipment to be used to the 6 position terminal block on the transmission units Refer to the signal and power connections section on page 7 for specifics Be certain that the various connections are made prop erly Also be sure to only use the positions called out for any particular protocol Set the internal DIP switches for the protocol speed and mode of operation according to the instructions beginning on page 8 Note As provided from the factory the unit is set for RS 232 point to point 1 3 Connect operating power Connect the two units together with two conductor fiber optic cable Be certain th
3. TROUBLESHOOTING TECHNIQUES If your system is not operating properly the following checklist may help to diag nose the problem A Check Transmitter or Transmit Section of a Transceiver 1 Is operating power DC AC Voltages correct 2 Are you using the correct pins on the connector or terminal block MD650A 85 MD650A 13 TROUBLESHOOTING TECHNIQUES Is the correct signal level present at transmitter input Is the optical connector on the transmitting LED clear of any obstruction or minute dirt particles Is there a short circuit anywhere in the system due to common power ground signal ground and case The above visual check should only be attempted with LEDs NEVER LOOK DIRECTLY AT AN OPERATING LASER DIODE REGARDLESS OF THE OF THE OPERATING WAVELENGTH US Government regulations require that all equipment using Laser Diodes be clearly identified with warning labels B Check Optical Connectors Are the connectors the correct size for the fiber Are the ends of the connectors free of all dust or dirt If not gently clean the tip of the connector with a clean cloth or gauze moistened with alcohol Is the fiber broken in the connector A quick inspection with an inexpensive jeweler s loop can determine this Is the fiber protruding from the tip of the connector If so refinishing will be necessary 1 2 C Check Fiber Optic Cable Is the fiber optic cable pulled too tightly around a sharp
4. BLACK BOX A O O AS AUGUST 2003 MD650A 85 MD650A 13 Universal Fiber Optic Line Driver CUSTOMER 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 MD650A 85 MD650A 13 TRADEMARKS TRADEMARKS USED IN THIS MANUAL UL is a registered trademark of Underwriters Laboratories Incorporated Any other trademarks used in this manual are acknowledged to be the property of the trademark owners FCC STATEMENT FEDERAL COMMUNICATIONS COMMISSION AND CANADIAN DEPARTMENT OF COMMUNICATIONS 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 B 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
5. following diagram Fiber Optic Cable q Data Fiber Optic Fiber Optic Fiber Optic Fiber Optic Transceiver Transceiver Transceiver Transceiver Drop 1 Drop 2 Drop 3 Set to drop and repeat mode of operation Set to drop and repeat mode of operation Set to drop and repeat mode of operation To Host Computer Set to point to point mode of operation Ring or Loop type Data Bus Configuration When the Universal Fiber Optic Line Driver is used in this mode any location can receive or insert data into the ring loop but only one station at a time is permitted to insert data All other stations will receive the data but must maintain their individual input lines in the low state RS 232 terminal block position 2 negative with respect to position 1 RS 422 terminal block position 2 negative with respect to position 3 to prevent loop lock up RS 485 operation does not have the above restriction due to the fact that it is in the tri state mode when not transmitting Note that the first or host location is set to the point to point mode All other locations are set to the drop and repeat mode This is to prevent loop lock up or data echos 7 MD650A 85 MD650A 13 OPERATING CONSIDERATIONS FOR FIBER OPTIC CABLE The Universal Fiber Optic Line Driver as supplied operates with most common fiber optic cables However it is important to use the cor
6. will be required to take whatever measures may be necessary to correct the interfer ence Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment 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 the Canadian Department of Communications 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 le minist re des Communica tions du Canada ne MM MD650A 85 MD650A 13 NOM STATEMENT 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 1 4 5 El aparato el ctrico no debera ser usado cerca del agua por ejemplo cerca de la tina de ba o lavabo s tano mojado o cerca de una alberca etc El aparato el ctrico debe ser usado nicam
7. 4800 9600 19 2K 38 4K 57 6K 76 8K 1152K MD650A 85 MD650A 13 INSTALLATION After transmitting the last data bit the above settings will determine how long the transceiver continues to wait in the transmit mode for data before reverting to the receive state The times specified are only recommendations but will be cor rect for most applications If desired they can be varied to meet specific data requirements No end of line terminating resistors are provided If required they must be connected externally RS 485 4 Wire Point to Point RTS Enable 8 position MODE DIP switch 3 4 5 6 7 8 Off Off On On On Off 6 position T R DIP switch All switches OFF In this mode the input to terminal 6 must be high for the unit to transmit data and low to receive data No end of line terminating resistors are provided If required they must be connected externally RS 485 4 Wire Drop and Repeat RTS Enable 8 position MODE DIP switch 3 4 5 6 7 8 Off Off On On On On 6 position T R DIP switch All switches OFF In this mode the input to terminal 6 must be high for the unit to transmit data and low to receive data No end of line terminating resistors are provided If required they must be connected externally 77 77 77 MD650A 85 MD650A 13 INSTALLATION RS 485 4 Wire Point to Point Data Derived T R 8 position MODE DIP switch 3 4 5 6 7 8 Off Off On Off Off Off
8. at the Transmit connector of one unit is connected to the Receive connector of the other unit The system should now be operational The transmitting element in the MD650A 13 uses a solid state Laser Diode located in the Transmit or Tx optical connector on the unit This device emits invisible infrared electro magnetic radiation which if viewed at close range without a fiber optic cable connected to the optical connector may be of sufficient intensity to cause instantaneous damage to the retina of the eye As a result direct viewing of this radiation should be avoided at all times Signal and Power Connections The power terminal block connections for the model 5012 are as follows 10 to 18 VDC position 2 DC return position 1 Note that this input is also reverse polarity protected MD650A 85 MD650A 13 INSTALLATION RS 232 Signal Connections Description EIA Designation Terminal Positions Chassis Ground Common AA 1 Transmit Data BA input 2 Receive Data BB output 4 Signal Common AB 1 All other terminal block positions should not be connected for this format RS 422 Signal Connections Chassis Ground 1 Transmit Data input 2 Transmit Data input 3 Receive Data output 4 Receive Data output 5 All other terminal block positions should not be connected for this format RS 485 2 Wire Signal Connections Chassis Ground 1 Transmit Receive Data
9. corner l MD650A 85 MD650A 13 TROUBLESHOOTING 2 Is the correct fiber size being used with the correct transmitter receiver combination 3 Does the fiber pass light at all A small penlight or flashlight can usually be used for this test 4 Does the fiber have too much attenuation for the system The attenuation measured on the installed cable will always be different than when the cable was still on the reel 5 When using lengths shorter than 10 meters 30 feet overloading of the receiver may occur The shorter the length of the fiber the greater the possibility for this condition Be sure there is adequate attenuation in any system For very short distances contact the factory for assistance D Check Receiver or Receiving Section of a Transceiver Follow the same steps as for checking the Transmitter However instead of checking the LED for light check the receiving end of the fiber optic cable MAINTENANCE The Universal Fiber Optic Line Driver has been manufactured using the latest semiconductor devices and techniques that electronic technology has to offer It has been designed for long reliable and trouble free service and is not normally field repairable The only maintenance that can be provided by the user is to ascertain that optical connectors are free of dust or dirt that could interfere with light transmission and that electrical connections are secure and accurate All other questions or comm
10. ente 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 en 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 sof 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 10 MD650A 85 MD650A 13 NOM STATEMENT 11 El aparato el ctrico debera ser connectado a una fuente de poder solo del tipo descrito en el instructivo de operaci n o como se indique en el aparato 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 aparat
11. ents should be directed to Black Box Tech Support It should be noted that many problems can easily be solved by a simple telephone call 0 0 0 BLACK BOX Copyright 2003 Black Box Corporation All rights reserved 1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746
12. externally RS 485 2 Wire Point to Point Data Derived T R 8 position MODE DIP switch 3 4 5 6 7 8 On On On Off On Off 6 position T R DIP switch Baud Rate T R Time 1 2 3 4 5 6 2400 473 ms Off Off Off Off Off On 4800 220 ms Off Off Off Off On Off 9600 1 10 ms Off Off Off On Off Off 19 2K 620 us Off Off On Off Off Off 38 4K 300 us Off On Off Off Off Off 57 6K 180 us On Off Off Off Off Off 76 8K 150 us On Off On On Off Off 115 2K 110 us On On On Off Off Off See next page re On Off Off Off Off Off Off Off Off Off Off Off Off Off Off RS 485 2 Wire Drop and Repeat Data Derived T R Off Off Off Off Off On Off Off Off Off On Off Off On On nN Off Off Off Off Off Off MD650A 85 MD650A 13 INSTALLATION After transmitting the last data bit the above settings will determine how long the transceiver continues to wait in the transmit mode for data before reverting to the receive state The times specified are only recommendations but will be cor rect for most applications If desired they can be varied to meet specific data requirements No end of line terminating resistors are provided If required they must be connected externally 8 position MODE DIP switch 5 On 1 Off Off Off Off Off On On On 4 On 6 position T R DIP switch T R Time 4 73 ms 2 20 ms 1 10 ms 620 us 300 us 180 us 150 us 110 us 3 On Baud Rate 2400
13. f Off 6 position T R DIP switch All switches OFF RS 232 Drop and Repeat 8 position MODE DIP switch 3 4 5 6 7 8 Off Off Off On Off On 6 position T R DIP switch All switches OFF When using this mode of operation any RS 232 driver not transmitting data must be in the low or voltage state as per EIA RS 232D MD650A 85 3 INSTALLATION RS 422 Point to Point 8 position MODE DIP switch 3 4 5 6 7 8 Off Off On On Off Off 6 position T R DIP switch All switches OFF RS 422 Drop and Repeat 8 position MODE DIP switch 3 4 5 6 7 8 Off Off On On Off On 6 position T R DIP switch All switches OFF RS 485 2 Wire Point to Point RTS Enable 8 position MODE DIP switch 3 4 5 6 7 8 On On On On On Off 6 position T R DIP switch All switches OFF In this mode the input to terminal 6 must be high for the unit to transmit data and low to receive data No end of line terminating resistors are provided If required they must be connected externally MD650A 85 MD650A 13 INSTALLATION RS 485 2 Wire Drop and Repeat RTS Enable 8 position MODE DIP switch 3 4 5 6 7 8 On On On On On On 6 position T R DIP switch All switches OFF In this mode the input to terminal 6 must be high for the unit to transmit data and low to receive data No end of line terminating resistors are provided If required they must be connected
14. ing to the receive state The times specified are only recommendations but will be correct for most applications If desired they can be varied to meet specific data requirements No end of line terminating resistors are provided If required they must be connected externally MD650A 85 MD650A 13 INSTALLATION Optical Fiber Versions of the Universal Fiber Optic Line Driver are available to drive most multimode MM and single mode SM optical fibers The specific models are identi fied as follows Fiber Size Connector Model Wavelength 50 or 62 54 MM ST MD650A 85 850 nm 8 10 50u SM ST MD650A 13 1310 nm Indicator LEDs The Universal Fiber Optic Line Driver has three green signal indicator LEDs that continuously monitor operation One labeled Power or PWR lights when operat ing power is present The other two labeled Transmit or Tx and Receive or Rx turn on whenever the transmitted or received data is in the high state and off when it is in the low state As a result they actually blink at the rate of the operating data However most data rates are so fast that these LEDs will usually appear to be on continuously MD650A 85 MD650A 13 CONFIGURING A RING OR LOOP TYPE DATA BUS In addition to point to point transmissions the Universal Fiber Optic Line Driver can be used to implement a ring or loop type data bus This is accomplished by setting the internal DIP switches as shown in the
15. input output 2 Transmit Receive Data input output 3 RTS Enable when used input 6 All other terminal block positions should not be connected for this format MD650A 85 3 INSTALLATION RS 485 4 Wire Signal Connections Chassis Ground 1 Transmit Data input 2 Transmit Data input 3 Receive Data output 4 Receive Data output 5 RTS Enable when used input 6 All other terminal block positions should not be connected for this format When the RTS mode of operation is used the input to terminal 6 must be high for the unit to transmit data and low to receive data Modes of Operation The Universal Fiber Optic Line Driver has two internal DIP switches that are accessible on the bottom of the housing These must be set to configure the desired mode of operation Setting the MODE DIP switch For all protocols positions 1 and 2 of the MODE DIP switch should be set as follows Low speed mode DC to 2 1 mbps Position 1 ON Position 2 OFF High speed mode 10 kbps to 10 mbps Position 1 OFF Position 2 ON For RS 232 the data rate is limited to 200 kbps For RS 422 485 the data rate is as above MD650A 85 MD650A 13 INSTALLATION Use the following protocol specific settings to finish configuring the MODE DIP switch on your universal data transceiver RS 232 Point to Point Factory Default Setting 8 position MODE DIP switch 3 4 5 6 7 8 off off Off On of
16. o 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 periodo 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 CE INFORMATION Standards to which conformity is declared EN 55022 1998 ey MD650A 85 MD650A 13 ITEMS INCLUDED Included with this product you should have received 1 1 MD650A 85 or MD650A 13 fiber optic line driver 2 1 Universal input AC power supply with 1 power connector 3 1 North American line cord 4 User s Manual QUICK INSTALLATION GUIDE The following is a quick installation guide for the Universal Fiber Optic Line Driver It is intended for users familiar with the installation of fiber optic transmission systems to get up and running in minimal time Since these unit
17. rect type of fiber optic cable as required by your particular transceiver model When using any type of fiber optic cable be careful not to cause excessive strains especially at the cable to connector junctions Also do not subject the cable to sharp bends or pull it around sharp corners Whenever possible service loops or extra slack should be provided in any installation While excessive precautions are not necessary fiber optic cable should be treated with moderate care as it does contain thin fragile strands of glass Notes Regarding Fiber Optic Cable Multimode fiber optic cable contains an optical fiber with a light carrying core that is only 0025 inches 62 51 diameter Single mode fiber optic cable has an even smaller core only 00032 to 0004 inches 8 101 This is smaller than a human hair Any minute particle of dirt or dust can easily block this fiber from accepting or radiat ing light As a result the key word is cleanliness Always use the dust caps provided with all optical connectors whenever they are exposed to air Also it is a good idea to gently clean the tip of an optical connector with alcohol whenever dust is suspected Mechanical butt splices or optical feedthroughs must be installed properly Multi mode devices will not operate properly with single mode devices even though they may look the same Using the wrong device can easily add more attenuation than specified resulting in impaired performance
18. s are capable of being configured for operation in many different modes we strongly suggested that you consult the appropriate sections of this manual Optical Connectors Power ee Connector Power Indicator Signal Indicator LED LEDs gt 4 Signal qa Connector For protocol and mode selection see UsersManual for proper DIP switch settings MD650A 85 MD650A 13 GENERAL INFORMATION Introduction The Universal Fiber Optic Line Driver is fully compatible with EIA standards for RS 232 RS 422 and RS 485 at data rates from 0 DC to 2 1 mbps 200 kbps for RS 232 in the low speed mode or from 10 kbps to 10 mbps in the high speed mode It may be used for simplex or full duplex asynchronous transmissions in both point to point systems and drop and repeat data networks It may also be used as a protocol con verter Although there are no operating controls the user must configure the unit for the protocol speed and mode of operation desired Specifications System Protocols o ooooooccccnnoocccccioonnnoo EIA RS 232 RS 422 RS 485 2 wire or 4 wire System Data 86 Low speed RS 232 DC 200 kbps RS 422 485 DC to 2 1 mbps High speed RS 422 485 10 kbps to 10 mbps Modes of 010 Simplex duplex drop and repeat Asynchronous RTS or Data Derived T R control Optical Loss 60 62 5 MM or 8 10u SM Fiber 0 18 dB in low speed mode 0 15dB in high speed mode Operating Wavelength
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