Related Manuals for W&T 81215
Summary of Contents for W&T 81215
- Page 1 W&T Universal Fiber Optic Interface Converter Manual Universal FO Interface Converter Model 81215 Release W&T Subject to error and alteration...
- Page 2 W&T Universal Fiber Optic Interface Converter © 10/2012 by Wiesemann & Theis GmbH Subject to error and alteration: Since it is possible that we make mistakes, you mustn’t use any of our statements without verification. Please, inform us of any error or misunderstanding you come about, so we can identify and eliminate it as soon as possible.
- Page 3 W&T Universal Fiber Optic Interface Converter Glass fiber optic transmission lines are the solution of choice when you need to implement absolutely noise-free serial data transmission over long distances and/or in noisy environments. Whereas the attenuation with plastic fiber optics places a limit of maximum 100 meters on the attainable cable length, the distances achievable with glass fiber optics are significantly greater and at a comparable cable cost.
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Page 4: Table Of Contents
W&T Universal Fiber Optic Interface Converter Index Universal FO Interface RS232/RS422/RS485, #81215 ..17 Function.....................17 Power Supply ..................17 Galvanic isolation and ESD protection.........17 Display elements ...................18 Serial Port ....................19 RS232 mode .....................19 RS422 mode .....................19 RS485 mode .....................19 RS422, RS485 4-wire bus master application ......19 RS485 4 wire / RS485 2-wire application with echo ....20... -
Page 5: Universal Fo Interface Rs232/Rs422/Rs485, #81215
Universal Fiber Optic Interface Converter Universal FO Interface RS232/RS422/RS485, #81215 Function The W&T fiber optic interface converter 81215 allows bi-directional conversion of an RS232, RS422 or RS485 interface into a fiber optic interface with a transmission speed of up to 500.000 bps. -
Page 6: Display Elements
W&T Universal Fiber Optic Interface Converter Connectors The fiber optic cables are connected to the converter using SC series connectors, with a DB9 plug for the serial connection. The arrangement of the signal connectors on the front panel of the interface can be seen from the following illustration: Power LED Fiber Optic SC Serial Port... -
Page 7: Serial Port
W&T Universal Fiber Optic Interface Converter Serial Port The combined RS232/RS422/485 interface of the fiber optic converter can be set to various operating modes using the DIL switches located near the serial port. These modes are described below: RS232 mode This mode provides one data channel each (RxD and TxD) in both directions. -
Page 8: Rs485 4 Wire / Rs485 2-Wire Application With Echo
W&T Universal Fiber Optic Interface Converter RS485 4 wire / RS485 2-wire application with echo One data channel in each direction is available. The RS485 output driver is activated automatically with each transmis- sion of data, and goes to the high impedance state again after the end of transmission. -
Page 9: Optical Interface
Data In B Data In A Optical Interface The W&T Interface 81215 uses common single-mode duplex 9/125µm glass fiber optic cable or 50/125µm and 62.5/125 µm multimode duplex glass fiber optic cable, which due to its wide use in network technology is easily and inexpensively... -
Page 10: Housing
W&T Universal Fiber Optic Interface Converter If the Interface is used however on multimode cables, the high coupled power of the transmitter can result in clipping with short cable lengths. In this case we recommend use of a 5dB attenuator on the Interface output, which can be ordered from W&T as article number 81900. -
Page 11: Technical Data
W&T Universal Fiber Optic Interface Converter Technical Data (I) Serial Interface: Operating modes: RS232, RS422 RS485 4-wire & 2-wire applications Baud rate: RS232: 0..230 KBaud RS422/485: 0..500 KBaud Data format: Transmitted signals: RxD, TxD Serial connector: 9-pin SUB-D plug Optical Interface FO cable connector: SC plug adapter ST plug adapter on request... - Page 12 W&T Universal Fiber Optic Interface Converter Technical Data (II) Power supply: Supply voltage: 12..48 V DC Operating current: typ. 30mA at 12V DC Power connector: Plug-in screw terminal, 5.08mm spacing, labeled „L+“ and „M“ Galvanically isolation: min. 1 kV between serial interface and power supply Misc: Ambient temperature:...