Trinamic USB-2-485, Руководство пользователя

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USB-2-485 Interface Converter 7
2.3 Technical Data
2.3.1 USB
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Connection to USB 1.1 or USB 2.0 hosts possible (a cable is supplied with the device)
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USB full speed device (12MBit/s)
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Bus powered (no extra power supply needed)
2.3.2 RS485
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Half duplex communication mode
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No loopback (receiver is switched off while transmitter is active)
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120 Ohm termination resistor
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Pull-up resistor (1k Ohm between RS485+ and +5V) and pull-down resistor (1k Ohm between RS485- and
GND) will ensure a valid signal level on the RS485 bus even if there is no active transmitter
2.3.3 Housing
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Compact, metalized standard housing (know as 9 pin Sub-D adapter housing)
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Dimensions: 68mm x 33mm x 17mm (length x width x height)