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Part 18
SERIAL PORTS – COM1/2/3/4
In Jiva system, there are 4 serial ports available. All the serial ports
can supply a +5 V DC through pin 9 after proper jumper setting change. All 4
ports are standard RS232 serial ports as status at delivery.
When a serial Modem is to be used in Jiva system, it is most
recommended to use COM2 or COM3 or COM4 port for this purpose. In this
way any hardware resource conflict is eliminated and the MODEM ring up
function can be supported. For models of TP-5600/5700/5800 using RS232
interface touch control such as the Infra Red type touch, COM4 is occupied
and covered. Please never try to open the cover. Otherwise the product
warranty is voided.
SOUND PORTS
The audio port on Jiva system with slim base supports a Microphone
in and a stereo line out jacks. There is a single channel internal audio amplifier
in the output port to drive the 2 slim type speakers installed in the I/O area
inside cable cover as in the picture below with 1 W audio power (For TP/LT-
5615/5715/5815 this item is an option).
Should the application demand for
higher audio power, please first ask
your dealer to disable the internal audio
amplifier and connect a pair of
speakers with booster or amplifier to
this port. Please note that this modification is a highly technical operation and
should not be handled by any person else. Please also note that the number and
types of I/O ports shown in picture above may evolve with time without notice.
FAN CONTROL
In the preloaded OS for Jiva system, there is an embedded function
that keeps monitoring the interior temperature and the fan revolution rate and
regulating each required fan power to gain maximum ventilation effect with
lowest possible noise. The end user may select “Start”, “Programs”, “Posiflex
Tools”, “Posiflex Fan Control Tools”, “Enable Posiflex Fan Controller” in
sequence to enable this function. This tool will remain enabled even after
system turning off/on until being disabled.
On occasion of system unexpected shutdown, please review the
ventilation condition and environment temperature of the system. Check if the
fan is stuck by contaminants such as dry grease or threads. Try to correct the
situation when the system is off and cooled down. You may power up the
system again after the system cooled down and trouble cause removed.
However, if the situation repeats again and again, please consult your dealer
for possibly fan replacement on worn out.
2 speakers