OPT-700 - SERIAL TO FIBER OPTIC CONVERTER
Contents
1. 700 Mie E Jf Go FIRST IN FIELDBUS SS hm USER S MANUAL OPT 700 SERIAL TO FIBER OPTIC CONVERTER OPT 00ME smar www smar com Specifications and information are subject to change without notice Up to date address information is available on our website web www smar com contactus asp OPT 700 Serial to Fiber Optic Converter Description Main Characteristics OPT 700 Serial to Fiber Optic Converter Supports Hot Swap Part Number OPT 700 EIA 232 EIA 485 to Fiber Optics Converter The OPT 700 is a Fiber Optic Modem designed to provide a versatile connection between asynchronous serial communication interfaces such as EIA 232 C and EIA 485 using Fiber Optic cable It will allow any piece of equipment that uses half duplex asynchronous serial communication at distances up to 4 0 km with great benefit of EMI immunity It can be configured point to point or in a multidrop configuration using the Repeat feature The OPT 700 supports a broad range of configurable baud rates for the asynchronous serial communication EIA 232 C can work between 2400 and 115 2Kbps while EIA 485 works from 2400 till 920Kbps Once Fiber Optic is immune to EMI RFI and ground loops the Modem can replace converters and isolators when connecting remote devices Figure 1 Serial to Fiber Optics Converter OPT 700 Y t works d2. h 2 set to the ON position Repeat Mode Slave n T S Switch 2 E ON o Master 3 Slave1 Switch 2 m Switch 2 OFF o ON SHOL OPT 700 OPT 700 ENT TN Figure 5 Multi Drop Operation LC700 Applications The OPT 700 is a great solution for reliable long distance communications with the Smar LC700 Universal Hybrid Controller It can be used in the following ways e MODBUS Point to point to a computer for Monitoring or Configuration Computer is the Master and LC700 is the Slave e MODBUS Multidrop One computer connects to many LC700s and other MODBUS devices Computer is the Master and all others are Slaves e Connect the LC700 CPU to the Remote I O Interfaces One RIO interface in point to point or more than one RIO in a multidrop repeat optical loop A 6 OPT 700 Serial to Fiber Optic Converter Configuring the DIP Switches pieogiino1lo Switch settings for baud rate selection Only one switch should be On to select the baud rate Check switch 3t 3 for baud rate Range 1 EIA 232 off 485 on Switch 1 ON EIA 485 off 232zon Switch 1 OFF 2 Repeater ON Switch 2 ON Repeater OFF Switch 2 OFF 3 Higher baud rate Range Switch 3 ON Lower baud rate Range Switch 3 OFF Switch Lower baud rate Range Higher baud rate Range 4 8k 57 6k 9 6k 115 2k 19 2k 230 4k 38 4k 460 8k 76 8k 921 6k Figure 6 Configuring the DIP Switches OPT 700 Serial to Fibe
3. irectly in the LC700 DFI backplane draining power from the Inter Module Bus IMB Y It can be used in a stand alone mode with an external power supply Y taccepts EIA 232 C or EIA 485 with configurable baud rates Y It supports Point to Point or Multidrop Fiber Optic communication Y Itis a great solution to increase link distances and eliminate EMI or Grounding problems Fiber Optic Cable This is a Dual or Simple multimode 62 5 or 50 125um fiber optic cable with ST connectors and a Maximum length of 4000m 12 000ft OPT 700 Serial to Fiber Optic Converter Basic Installation Steps Y Setthe internal jumper J1 to use internal or external power supply To remove the circuit board from the plastic module push with moderate pressure each tab top and bottom close to the grids while forcing to separate the box from the front plastic panel Y Decide which RS asynchronous interface is going to be used Configure Switch 1 see table below Y Find out the working baud rate and configure Switch 2 high or low baud rate range then turn on only one of the switches between 4 and 8 Y Determine the necessity to work with point to point or multi drop connection and define all necessary cable and then make sure the repeat Switch 2 is correctly configured on each OPT 700 converter Y all connections and start the system Follow the signal by the Rx and Tx LEDs on the front panel They will blink according to the data acr
4. oss the fiber line Y fthere are any problems go to the Troubleshooting section of this Manual A 2 OPT 700 Serial to Fiber Optic Converter Installing the Module in the Rack Follow the steps below to install the module in the rack Attach the top of the module with a 45 inclination to the module support located on the upper part of the rack Mounting detail Push the module fixing it to the module connector Next fix the module to the rack using a screwdriver and fasten the fixation screw at the bottom of the module OPT 700 Serial to Fiber Optic Converter Front Panel Overview The figure below shows the OPT 700 module with the front cover opened From top to bottom we can see the DB9 connector for the EIA 232 C the 5 position terminal for the EIA 485 and external power supply 8 DIP switches for configuration and finally the fiber optic receiver and transmitter If the connection with the DB9 port is permanent the DB9 EXT cable must be used to allow the panel to be opened Shield RX H g A 2 3 High Baud Low Bau 4 5 6 8 87965 6621 2 5 2 ir g 5 eo S o us o lt o o 2 Figure 2 Overview of the front panel Connecting in an External So
5. r Optic Converter Technical Specifications Internal Source IMB 5 Vdc Power Consumption 1 9 W Current Consumption 260 mA max Voltage Range 10 to 35Vdc Current Consumption 80 mA 24 Vdc 62 5 or 50 125 um optical cable with ST connectors Optical Wavelength 820 nm Typical Maximum Fiber Length 4000 m 12000 ft EIA 232 2 4Kbps to 57Kbps EIA 485 4 8Kbps to 920Kbps Optical Transmission Line Baud Rates Troubleshooting sure that all of the connections are complete and the power is ON If power is not on then check the power supply selection jumper that is located on the circuit board J1 e While you are using the EIA 232 configuration the EIA 485 should be disconnected and the switch 1 should be in the off position The repeater switch 2 should be in the off position except for OPT 700 connected to Slave devices in a multidrop mode e While you are using the EIA 485 configuration the EIA 232 should be disconnected and the switch 1 should be in the on position For the multidrop mode the repeater switch 2 should be in the on position for all OPT 700 except the one attached to the Master device e sure that all of the devices in the communication system are using the same baud rate e All fiber cables should be connected see point to point or multi drop connection A 8 Appendix A SRF SERVICE REQUEST FORM S nt a r Propo
6. sal N OPT700 Serial to Fiber Optic Converter COMPANY INFORMATION Company Unit Invoice COMMERCIAL CONTACT Full Name Phone Fax E mail TECHNICAL CONTACT Full Name Phone Extension E mail EQUIPMENT DATA Model Serial Number PROCESS DATA Process Type Ex boiler control Operation Time Failure Date FAILURE DESCRIPTON Please describe the failure Can the error be reproduced Is it repetitive OBSERVATIONS 0 0 gt O Company Contact Section Title Signature Phone Extension E mail Date For warranty or non warranty repair please contact your representative Further information about address and contacts can be found on www smar com contactus asp A 1 OPT 700 Serial to Fiber Optic Converter A 2
7. urce Using this modem as a stand alone device requires that the internal jumper J1 be removed from the default position and placed into the external PS position The circuit must be removed from the box to modify the jumper configuration Next connect an external power supply to terminal VDC The OPT 700 can work with a range of 12 to 30 Vdc and will drain a maximum current of 200mA A 4 OPT 700 Serial to Fiber Optic Converter VDC RS 485 uum iim Figure 3 Connecting an external source RS 232 CONNECTOR 1 Shield Receives Transmits 2 3 7 Ground Reference Signal Point to Point Operation It is the simplest type of link Configure each side of the link with the appropriate RS interface and Baud rate Notice that the RS interfaces on both sides can be different and the baud rate on both sides need to match In this case both units must have the Repeat Switch 2 OFF See figure below Switch 2 OFF 5 01 SHuol Switch 2 OFF Figure 4 Point to point operation OPT 700 Serial to Fiber Optic Converter Multi drop Operation The OPT 700 can also be used for multiple drops by forming a ring configuration In this way when a Master modem transmits the signal all of the slave devices are able to receive the information The Master OPT 700 will be in the Do Not Repeat mode Switch 2 OFF while all slaves require Switc
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