P15-4 Mobile Printer CPCLProgramming Manual
POWER MANAGEMENT
The printer contains the following power management
features:
1. Synchronized On/Off control via DTR line from the
attached host (DTR On/Off Control).
2. Programmable inactivity timeout.
3. Programmable low-battery timeout.
4. Shutdown command.
5. Enters low-power mode when idle.
SYNCHRONIZED ON/OFF CONTROL VIA PRINTER’S DSR LINE
The DSR line is an input to the printer and is controlled
by the attached host’s DTR line. The DSR line controls
the power on/off and the operation of the short-range
radio module.
1.Power On/Off Control
A low (inactive) to high (active) transition on this line will
cause the printer to turn ON. A high (active) to (low)
transition on this line will cause the printer to turn OFF
only if it is configured to do so. The factory default con-
figuration enables power-off on high to low transition on
DSR. This setting can be changed using the MP Utilities
program.
NOTE: A minimum of 500 milliseconds delay is required after
DTR has been set high to allow the printer to power up and fully
initialize prior to sending data. This is true regardless of the
state of CTS if hardware handshaking is used. Failure to provide
this delay may cause missed characters at the start of the file.
The printer will stay ON for as long as DSR is high (ac-
tive) unless it reaches low-battery shut down point, or it
receives a command to shut down. Please note that the
inactivity time-out is disabled while DSR is high (active).
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