GENERAL DESCRIPTION
pin-out is given bellow:
The RxD pin is the “Receive data” pin from the NXAMP4x1 point of view. Thus this is an
input. The TxD pin is the “Transmit data” pin from the NXAMP4x1 point of view. Thus this
is an output. GND is the ground.
A crossover cable (connecting RxD pin of NXAMP to TxD pin of computer, and so on) is
needed to use this serial port. Please see further the dedicated part of this document on
that subject.
The GPIO port is a Global Purpose Input/Output signals system that can be use for a wide
range of application, mainly interfacing the NXAMP4x1 with security systems. There are the
following signals available:
• 8 x General purpose output signals from NXAMP4x1 (5 Volts signals)
• 5 x General purpose input signals to NXAMP4x1 (5 Volts signals)
• 4 x 5 Volts outputs
• 8 x GND (ground) signals.
The pin out of these signals is given bellow:
PAGE 28 OF 80
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