Power Connector; De9 Rs-232 Connector - BrightSign HD120 Hardware Manual

• HDMI connector
• Power plug for 5 V power input at 3 A

Power Connector

The power connector on this board is rated for 5 V at 3 A. The plug for the connector is a standard, center-positive 5.5mm
plug with a 1.65mm center pin hole.

DE9 RS-232 Connector

The RS-232 connector is a male DE9. Like PCs, the BrightSign HD series of players are DTE devices. The input to the
chip accepts a range between +30V and -30V, so it is compatible with standard +12V and -12V signaling. The output from
the chip is rated at a typical +7V and -7V, which exceeds the voltage required by the RS-232 specification.
The baud rate is 115,200, with no parity, 8 data bits, and 1 stop bit. There is no hardware or software flow control. The
maximum cable length is 50 meters, and the total cable capacitance is 2500pF.
Note: A lower capacitance cable allows you to use cable lengths beyond 50 meters.
The following diagram illustrates the behavior of the TX and RX signal:
The following table illustrates the pinout of the DE9 on the HD series of players:
All information provided in this reference manual applies to products under development. The characteristics and specifications of these products are subject to
change without notice. BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing. © BrightSign LLC, 2012
BrightSign HD120, HD220, HD1020
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