Unitech PT600 - Manual (Page 16)

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1.6 Optional Charging/Communication Cradle
An optional charging/communication cradle (docking station), PT016,
gives users a convenient accessory for daily use of the PT600. The cradle
has been incorporated a quick charge circuit that the NiMH battery pack
installed in the unit along with an extra spare pack can be fully charged in
about 2.5 hours. Regular charging time of the battery pack through DC
power adapter is about 14~16 hours. The cradle also allows users to link
the PT600 to host computer through point-to-point RS-232 or multi-point
RS-422 connection for data communication. The cradle with internal
modem will be available in the future.
COMPUTER
RS232 cable
DC 12V
POINT-TO-POINT
SYSTEM
PT016
Spare
Battery pack
COMPUTER
SYSTEM
RS422 interface
MULTI-POINT
DC 12V
DC 12V
DC 12V
RS232 Connection
RS422 Connection
Charging and
Communication
Cradle