Recognition Systems HandPunch 1000, Руководство пользователя

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HandPunch 1000 Manual
Page 11
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.
HandPunch to
Host
Computer
Connection HandPunch/host computer communications can be configured in one of two
ways:
• via a direct RS-232 connection
• via an optional Modem connection
RS-232 Host
Computer
Connection A direct HandPunch connection to a host computer can be made through an 4-
conductor cable in an RS-232 serial configuration. A 6’ or 50’ cable may be
purchased through RSI or a wiring diagram for the RS-232 to host computer
connection is found on Table 2 on page 18
Modem Host
Computer
Connection The HandPunch is also available with an optional modem module for telephone
line communications between the HandPunch network and the host computer.
When connecting via modem, one HandPunch terminal must be configured with
the modem option. This terminal will communicate with the host computer.