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650 System Manual (Draft)
Version 0.4 August 20, 2008
10
Automatic LCD Brightness Control
Another innovative feature of the 650 is its use of a light sensor to control the
LCD brightness. A light sensor is built into the unit and can detect when a room is
darkened. It will automatically dim the LCD so that it is not too bright. This
patent pending feature is also unique to J2.
UPS
Not your ordinary UPS, the J2 650 UPS is a DC, not an AC UPS. The UPS fits
conveniently into the base of the unit. Unlike an AC UPS the J2 UPS makes the
650 work more like a notebook computer. In addition to running the 650 for up to
two hours, the UPS will run all the POS peripherals attached to the 650, including
the printer. Because of the unique design of the J2 UPS and power supply, the
need for special AC power conditioning devices is eliminated.
Printer Power Port
The 24 volt Printer Power Port can power most POS printers on the market,
including the popular Epson line of printers. When used along with the J2 UPS, if
a power outage should occur, the POS terminal can still operate and print receipts
for up to two hours. Also, when the 650 is turned off the printer is turned off also.
This is very useful when the auto power on and off features of the 650 is used.
Cooling System
Great attention was paid to the thermal solution of the 650; it is truly a unique
feature. The 650 can run as a fan less or fan-cooled system. Because of the very
wide range of processors supported, thermal loads can range from 20 watts to as
high as 80 watts. The 650 was designed to handle these thermal loads while still
being super quiet. Two smart fans are used in conjunction with an Embedded
Controller (EC) to ensure that the fans run at the lowest possible speed while still
providing proper cooling. Fan speed changes are controlled to produce the
smallest acoustical signature possible. The 650 also includes a JAM-FAN mode.
If the fan does not spin up when it should, the fan turns on to full power to
dislodge any dust that may be jamming the fan! The 650 fans are the type used in
Blade Servers and have a speed range from 2500~13500rpm at very high torque.
Versatility
The word versatility is very much over used, but it is the correct word to describe
the most unique feature of the 650. The combination of all the 650 unique features
allows for the 650 to fit many roles. The 650 is not just one product, but a full
product range all in one system. From fan less thin client to Core 2 Duo RAID
Server - the 650 does it all.