Black Box Fiber Optic دليل المستخدم

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MED100A 304 pg. 1 / 4 6132-r1




Model MED100A
Fiber Optic Modem Sends
RS-232, 422, 485 Signals Up to 2.5 Miles CE






Description
The MED100A is designed to provide the most versatile connection possible between any asynchronous serial equipment
using Fiber Optic cable. It allows any two pieces of asynchronous serial equipment to communicate full or half-duplex over
two fibers at typical distances up to 2.5 miles. The converter can also be set up in "Repeater" mode to cr

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RX MED100A FOSTCDR SW1:6=ON SW1:6 = ON TX SLAVE RX MED100A FOSTCDR SW1:6=ON SW1:6 = ON TX SLAVE RX MED100A FOSTCDR SW1:6=ON SW1:6 = ON TX SLAVE MED100A 304 pg. 2 / 4 6132-r1 Fiber Optic Connections The MED100A uses a separate LED emitter and photo-detector operating at 820 nm wavelength. Connections to the emitter and detector are on ST type connectors. Most multimode glass fiber size can be used including 50/125 μm, 62.5/125 μm, 100/140 μm, and 200 μm. One fiber is required for each

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MED100A 304 pg. 3 / 4 6132-r1 Position 6 of SW1 sets the unit in a “Multidrop” mode or a “Point-to-Point” mode. When the MED100A is set in a “Multidrop” mode, data arriving on the Fiber Optic receiver is repeated back out the transmitter. When set in a “Point-to- Point” mode, data arriving at the Fiber optic receiver is not sent back out the Fiber Optic transmitter. Position 6 must be turned “On” when the MED100A is to be used in a multi-drop ring configuration. It must be turned “Off” wh

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MED100A 304 pg. 4 / 4 6132-r1 Table 4: Operating Parameters Parameter Min. Typical Max. Conditions Data Rates (RS-232 Operation) 0 bps 115.2 kbps Data Rates (RS-422/485 Operation) 0 bps 500 kbps Power Supply Voltage 10 VDC 12 VDC 30 VDC Power Supply Current Draw 140 mA Full RS-485 Termination Optic Wavelength 820 nm Fiber TX Launch Power -17 dBm -13 dBm -10 dBm Minimum Required Fiber Rx Power -25.4 dBm -24 dBm Maximum Receiver Power -10 dBm Coupled Power Budget 12.1