Black Box Electronic Accessory Industrial Serial to Multi-mode Fiber Optic Converter User's Manual
Contents
1. RS 232 DTE MED100A Configure the converter for RS 232 Set DIP Switch SW1 6 to OFF Cross connect the fiber optic transmitter to the fiber optic receiver using a multimode patch cord Connect a PC to the serial port Using Hyper Terminal or similar program connect to the appropriate COM port Set the baud rate to match the converter Ensure Hyper Terminal local echo is OFF Transmit data If the same character string is returned the test is good Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Tech Support and Ordering 724 746 5500 Fax 724 746 0746 To contact us about Black Box products or services info blackbox com MED100A 0908 5 5 p n 6132r3 External Power Supply MED100A 7 Anexternal 10 to 30 VDC power supply is required Attach power leads as shown above Mechanical Diagram 76 8 mm 2 fee g lad TOP S m m 1 0 x35 x 4 2 Inches Pa 2 EDES 0o00 Seg es ee ee 25 1 x 69 6 x 105 6 mm SCREADRIWER 46 6 mn gt 10 7 mim a 2 9 mm __ gt G H J G Epp mm D o BES 2 5 5 0 E L M oo YI T gt S T Ly mm a H Wires E a DIM Rail Mount Ww ne Detail Approximate i 35 mm Rail 5 oO u o 4 za H r 10 4 mm 25 4 mm 1 inch Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Tech Support and Ordering 724 746 5500 Fax 724 746 0746 To contact us about Black Box p2. 4 Tighten the screws to close the Serial TB Lead Clamps Ensure the clamps hold the leads securely However do not MED 100A DATA B over tighten 5 Position DIP Switch positions 1 through 5 for t he desired apices baud rate DEVICE 6 Position DIP Switch positions 7 to ON and 4 to OFF for RS 485 4 Wire mode Set DIP Switch positions 7 and 8 to OFF for RS 422 mode Installation Notes Not all RS 485 devices are marked correctly for Data and Loosen the screws to open the Serial TB Lead Clamps for the G so if the slave devices don t respond after going through H K L and M terminals the fiber converter try swapping the wire pairs polarity to each Jumper terminal G to terminal K and connect to RS 485 Data A converter When there is no light received from the fiber in the lead receive indicator will be On You can interconnect or loop back Jumper terminal H to terminal L and connect to RS 485 Data B the transmit fiber on one unit to the receive input on the same lead unit to verity the receive light goes out If the transmit light is Connect the signal ground lead to terminal M lighted all the time without data the polarity of the RS 485 is Tighten the screws to close the Serial TB Lead Clamps Ensure reversed or there is not enough bias or termination loads on the clamps hold the leads securely However do not over tighten the RS 485 bus Normal bias before termination is about 3 8 Position DIP Swit
3. 485 driver If this time is set too short the driver could be disabled before transmission is complete resulting in data corruption If the time is set too long the device may respond before the RS 422 485 driver in the MED100A is disabled corrupting this response Set the timeout for approximately one character time or longer The character times for several different baud rates are selectable on switch positions 1 through 5 If you need a different timeout than what is provided R10 can be removed and replaced with a different value R9 This table shows different timeout values for the switch positions as well as R9 replacement values Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Tech Support and Ordering 724 746 5500 Fax 724 746 0746 To contact us about Black Box products or services info blackbox com MED100A 0908 3 5 p n 6132r3 RS 422 RS 485 Mode RS 422 RS 485 4 Wire Selection MED100A 1 RS 422 485 mode is selected by positioning DIP Switch positions 7 and 8 as shown below RS 422 485 DEVICE Mode Position7 _ Position8 RS 485 2 Wire RS 485 4 Wire RS 422 OFF OFF MED 100A RS 485 2 Wire a RS 422 485 MED100A DEVICE DATA A DATA B RS 485 2 WIRE DEVICE 1 Loosen the screws to open the Serial TB Lead Clamps for the G H K L and M terminals 2 Connect RS 422 485 signal leads as shown in the diagram 3 Connect the signal ground lead to terminal M
4. MED100A 0908 1 5 MED100A Industrial Serial to Multi mode Fiber Optic Converter v Data Rates up to 115 2 kbps v 2 5 Mile 4 km Range v 10 to 30 VDC Input Voltage v Wide Operating Temperature v 2000V Isolation v MODBUS ASCII RTU Compatible v EMI RFI Protection The MED100A is our Industrial Serial to Multi mode Fiber Optic Converter Designed for industry it extends serial data range up to 2 5 miles and provides the most versatile connection possible between any asynchronous full or half duplex serial equipment In addition to direct point to point connectivity it is capable operating in a multi drop mode This allows one serial device to communicate with up to 31 others around a fiber optic ring Since it supports mixed serial standards you can replace other converters and isolators and add the EMI RFI immunity inherent to fiber optic communications In RS 232 mode the MED100A supports transmit and receive data Handshaking signals are not passed through An Automatic Send Data Control circuit controls the RS 422 485 driver chip eliminating the requirement for special software Easy to install and configure it has an 8 position DIP Switch to set up the RS 422 485 parameters and terminal blocks to connect serial signals and power RS 232 RS 485 2 Wire RS 422 485 4 Wire Serial Connector Data Rate RS 232 RS 422 485 Isolation Industrial Bus Type Wavelength Output Power Receive Sensitivity Cable Connec
5. WRLED ON When Power Applied __ 3 TDLED On When Serial Data Transmitted 4 RDLED On When Serial Data Received 5 DIP Switch 8 Position 6 Terminal Blocks Serial Data and Power DIP Switch SWI mre F di a 12345675 OFF RS 422 485 Baud Rate Selection RS 422 485 Baud Rate Selection RS 422 485 Baud Rate Selection RS 422 485 Baud Rate Selection S 5 RS 422 485 Baud Rate Selection 6 FO Multi drop Ring FO Point to Point RS 422 485 Mode Selection 8 RS 422 485 Mode Selection p n 6132r3 Terminal Block Terminal RS 232 RD OUTPUT GND PGND RS 232 TD INPUT O A o B D E NOTCONNECTED F 10TO30VDC CT _ RS 422 485 TDA DATA A H RS 422 485 TDB DATA B K RS 422 485 RDA DATA A RS 422 485 RDB DATA B DIN Rail Mounting 1 Angle the converter DIN clip over the top of the DIN rail 2 Move the converter so that it is parallel with the DIN Rail and snap the DIN clip into place RS 422 485 Baud Rate Timeout Baud 1 2 3 4 5 R9 TIMEOUT 460 8K 2 2 KQ The Dip Switch on the MED100A defines the mode of operation when being used for RS 422 or RS 485 Positions 1 through 5 determine the timeout of the RS 485 driver Because the driver is controlled by hardware a specific time must be set to tell the hardware how long to wait for data on the fiber side before turning off the RS 422
6. ch positions 1 through 5 for t he desired baud to 4 0 VDC Data to rate Position DIP Switch positions 7 and 8 to ON for RS 485 2 Wire mode Installation Notes Not all RS 485 devices are marked correctly for Data and so if the slave devices don t respond after going through the fiber converter try swapping the wire pairs polarity to each converter When there is no light received from the fiber in the receive indicator will be On You can interconnect or loop back the transmit fiber on one unit to the receive input on the same unit to verity the receive light goes out If the transmit light is lighted all the time without data the polarity of the RS 485 is reversed or there is not enough bias or termination loads on the RS 485 bus Normal bias before termination is about 3 8 to 4 0 VDC Data to Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Tech Support and Ordering 724 746 5500 Fax 724 746 0746 To contact us about Black Box products or services info blackbox com RS 232 DB9 RS 232 DB9 MED100A 0908 4 5 RS 232 MED100A DTE DCE Loosen the screws to open the Serial TB Lead Clamps for the D A and B terminals Insert the RS 232 Signal Leads into the TB Refer to the diagram above for DTE and DCE wiring configurations Tighten the screws to close the Serial TB Lead Clamps Ensure the clamps hold the leads securely However do not over tighten Installatio
7. n Notes DIP Switch Positions 1 through 5 7 and 8 are not used in RS 232 Mode The wiring example shows a DTE device on one end and a DCE device on the other Handshaking signals are not passed through Fiber Optic 1 Ensure your fiber optic cable is terminated with an ST type connector 62 5 125 micro meter multimode cable is recommended 2 Connect the converter s transmitter to the distant end receiver and vice versa 3 The fiber optic transmitter light is ON in the idle state Therefore the RX indicator will be lighted when data is not being transferred 4 DIP Switch SW1 6 is used to select point to point or multi drop mode For point to point set the switch to OFF for both converters For multi drop set the switch to ON for each converter in the ring With SW 1 6 in the ON position receive data will be looped back to the fiber optic transmitter Data will repeat around the ring until it finally reaches its source When the data is received by the originator timeout circuitry will prevent it from being re transmitted Maximum Converters in a Fiber Ring Baud Rate RS 232 RS 422 485 19 2 kbps and lower 38 4 kbps 115 2 kbps O 2 8 p n 6132r3 MED100A MED100A CONVERSION amp TIMEOUT CONVERSION amp TIMEOUT Fiber Optic Point to Point MEDI00A MED100A MED100A SW1 6 CONVERSION amp TIMEOUT CONVERSION amp TIMEOUT swis ON Fiber Optic Multi drop Ring RS 232 Loopback Test
8. roducts or services info blackbox com
9. tor Data Rate Maximum Distance Idle State Source Input Voltage Power Consumption Connector LED Indicators Dimensions Enclosure Weight Op Temperature Storage Temp Op Humidity Approvals MTBF MTBF Calc Method p n 6132r3 CE Specifications Serial Technology TD RD GND Data A Data B GND TDA TDB RDA RDB GND Terminal Block 24 to 14 AWG Up to 115 2 Kbps Up to Up to 460 8 Kbps 2KV RMS 1 minute MODBUS ASCII RTU Fiber Optic Technology Multi mode 820 nm 17 to 10 dBm 25 4 dBm to 24 dBm 62 5 125 micro meter ST 9 6 TO 115 2 kbps 2 5 miles 4 km Transmitter Light ON Power External 10 to 30 VDC 4 2 Watts Terminal Block 24 to 14 AWG Mechanical Serial TD RD and Power 4 3 x 2 3 x 95 in 11 x 9 x 2 5 cm 35mm DIN Mount Plastic 0 4 Ibs 182 g Environmental 40 to 176 F 40 to 80 C 40 to 185 F 40 to 85 C 0 to 95 Non condensing Regulatory FCC CE 460854 hours Parts Count Reliability Prediction Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Tech Support and Ordering 724 746 5500 Fax 724 746 0746 To contact us about Black Box products or services info blackbox com MED100A 0908 2 5 Package Contents e MED100A Industrial Serial To Multi mode Fiber Optic Converter e Datasheet e Fiber Optic Dust Cover installed Front Panel 1 Fiber Connectors Multimode ST Connectors 2 P
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