Posiflex DT-308 - Manual (Page 6)

Part 6
INSTALLATION GUIDES
CAUTION: Before any installation or cable connection to the set, please
always make certain that the system is turned off and the
external power source to the set is removed to prevent electric
hazard! Never touch any metal pin in the connectors or
circuits to avoid high voltage hazard or electrostatic discharge
damage unless the operator is well grounded. Failure to do the
above will void the product warranty!
NON-USER-INSTALLABLE OPTIONS
Installation of options such as MSR / HDD / DRAM must be done by a
qualified technician in the dealer’s site only. This operation is not open to end
user.
OPENING CABLE COVER
The DT-308 series is constructed for very easy maintenance. Press both plastic
compression lock at lower rear corners on both
sides of the system unit (circled in right picture)
at same time to release the cable cover. Please
note that there are 2 plastic hooks on top edge
of cable cover as rectangular marked in the
picture holding the top cover at arrowed
positions. Push down the hooks to release the
cable cover hook from the terminal and the I/O
area can be finding easily.
INSTALLING UPS BATTERY (OPTION)
The UPS battery is in the carton at delivery if
ordered. Push the 2 UPS battery cover latches
on parting line between the system top cover
and the cable cover to the front as arrowed in
the right picture to remove the UPS battery
cover with the customer display cover installed
on it and to reveal the UPS battery cavity. Pass
the UPS battery cable through a hole in the cavity
to enter the connection area as arrowed in the left
picture. Please note that there is a ribbon in this
cavity for easy battery retrieval. Seat the battery
on this ribbon while the free end of the ribbon
comes out as circled in the left picture.