Recognition Systems HandPunch 50E, Manual

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HandPunch 50E Manual
Page 11
Battery charge voltage is set at approximately 13.65 volts, and battery
charge current is limited to approximately 50 mA. A fully discharged
battery requires approximately 12 hours of charge to fully recover.
Additional options installed and specific configurations within the
HandPunch make it difficult to predict precisely how long battery
support will last, but in general two hours of battery operation can be
expected. While operating on battery backup due to loss of main input
power, the battery output voltage is constantly monitored by internal
circuitry. If the battery voltage reaches approximately 9.5 volts the
HandPunch automatically shuts down. This is done to prevent full
exhaustion of the battery. A yellow indicator on the top panel illuminates
to indicate that the HandPunch is running on battery power. This
indicator turns off when main input power is restored.
Shunt J7, which is located immediately in front of the DIP switches on
the main logic board (see Figure 4-1 on page 17), enables or disables
battery operation on those HandPunches equipped with optional
battery backup. If a HandPunch does not have the optional battery
backup package installed, J7 is not used. On HandPunches equipped
with the battery backup option, J7 allows service personnel a
mechanism for disabling battery backup operation before removal of
main input power.
To fully power down a HandPunch equipped with battery backup,
remove or reposition shunt J7 so that the two pins protruding up from
the main logic board are not connected to each other. This effectively
opens the circuit, removing the battery from any internal circuitry. Main
input power can then be removed and the HandPunch will fully shut
down. Once the HandPunch has fully shut down, shunt J7 may be
reinstalled.
The design of the power supply is such that main input power must be
reapplied to re-enable the battery protection mechanism. If shunt J7 is
not properly installed, the internal backup battery will not be charged,
and in the event of a main input power loss, the HandPunch will shut
down.
Ethernet to
Host
Computer
Connection To make the Ethernet connection, a data jack must be installed on or in
the wall behind the HandPunch terminal. Position the RJ-45 jack
location using the template provided in this manual (see Figure 3-2 on
page 15).
Figure 4-3 on page 19 a wiring diagram for a Ethernet to host computer
connection.