MediaMatrix nTouch 60 Manuel télécharger pdf (Page 85)

NION Hardware Manual

May 17, 2011 Version 1.6.2a.0 81

RS-422/485 serial port in RS-485 mode

For RS-485 applications the serial port is configured for half-duplex operation. A single data

pair is provided for transmit (Data+) and receive (Data-).

Additionally, there is a 120 Ohm terminating resistor provided for applications that require an

EOL termination. The termination is optional and is accessible by connecting the terminating

pin (TX Terminator) to the positive data (Data+) pin.

Power (+12VDC) is provided on pin 4 and is referenced to ground, pin 5. The power pin is

protected by a self-resetting fuse and is limited to 0.5A, max.

Pin Function Pin Function

1 Data + 6 TX 120 ohm terminating resistor

2 Data - 7 Not used

3 Not used 8 Not used

4 +12 VDC (0.5A) 9 Reserved (no connection)

5 Ground

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 97 98

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MediaMatrix nTouch 60 Manuel Page 85