Tait TA2922 User Manual

TA2922 Universal Line Interface Service Manual 33
© Tait Electronics Limited March 2010
General purpose programmable digital input/output line. The action of this line is
defined by the radio programmable digital I/O section of the radio programming
application. See “Programmable I/O form, Digital tab” on page 39.
The radio programming defines if the signal is an input or an output while the
TA2922 options board transparently passes the digital signal between the radio
internal options port and the external connector. The digital signal travels through
the microcontroller on the TA2922 board which scans and updates I/O lines once
every 10ms, so this latency time should be allowed for in timing calculations. The
maximum voltage applied to this line should not exceed 3.3VDC.
T EXT GPIO6
■ Signal direction: bidirectional
■ Signal level: 3.3VDC max
■ Signal impedance: 470 ohms
General purpose programmable digital input/output line. The action of this line is
defined by the radio programmable digital I/O section of the radio programming
application. See “Programmable I/O form, Digital tab” on page 39.
The radio programming defines if the signal is an input or an output while the
TA2922 options board transparently passes the digital signal between the radio
internal options port and the external connector. The digital signal travels through
the microcontroller on the TA2922 board which scans and updates I/O lines once
every 10ms, so this latency time should be allowed for in timing calculations. The
maximum voltage applied to this line should not exceed 3.3VDC.
U EXT GPIO7
■ Signal direction: bidirectional
■ Signal level: 3.3VDC max
■ Signal impedance: 470 ohms
General purpose programmable digital input/output line. The action of this line is
defined by the radio programmable digital I/O section of the radio programming
application. See “Programmable I/O form, Digital tab” on page 39.
The radio programming defines if the signal is an input or an output while the
TA2922 options board transparently passes the digital signal between the radio
internal options port and the external connector. The digital signal travels through
the microcontroller on the TA2922 board which scans and updates I/O lines once
every 10ms, so this latency time should be allowed for in timing calculations. The
maximum voltage applied to this line should not exceed 3.3VDC.
VRADIO DATA IN
■ Signal direction: input
■ Signal level: -10 to +10V
■ Signal impedance: 5k ohms
RS-232 data from PC to TA2922 board for programming parameters and option
board software upgrades. The TA2922 may be configured to transparently pass

Tait TA2922 Specifications

General

Brand	Tait
Model	TA2922
Category	Computer Hardware
Language	English