Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 774)

APPENDIXES
Technical Appendixes
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WM_DEV_OAT_UGD_049 - 001 APPENDIXES August 23, 2007
3.7 Specifications of Power Down Control mechanism through
serial Ports (physical Ù RS232 ports or virtual Ù CMUX
ports)
3.7.1 What is new on X55 and further software releases
V24 Sleep mode and Wavecom 32K mode used to be a one and only functionality.
Since v24 now supports several ports (physical or virtual), Wavecom products are
allowed to enter 32K low consumption mode only when all of these ports are
individually ready to enter such a mode.
3.7.2 Definitions.
3.7.2.1 Serial Port Sleep Mode State
This mode reflects the particular V24 state of a port (physical or virtual) regarding the
possibility to enter or not 32K low consumption mode.
¾ This mode is entered automatically when:
ƒ The port is in AT command mode. (no GSM/GPRS communication is in
progress on it).
ƒ No AT response is to be sent to the DTE.
ƒ The connected DTE is no more ready to communicate on it (meaning DTE
sets DTR low).
¾ This mode is left automatically when some unsolicited responses are to be sent
to the DTE.
The connected DTE is ready to communicate on it (meaning DTE sets DTR high).
CTS is set when in this mode, the DCE does not allow the DTE to send data to the
involved serial port (meaning low on that port).
3.7.2.2 Serial Ports Sleep Mode Global State
This mode reflects the state of all the internal serial ports regarding their ability to
enter 32K low consumption mode.
It is a Boolean (asleep or not) that authorizes or not GSM/GPRS protocol and
Hardware Layers to enter 32K low consumption mode.
This mode is entered and left automatically depending on the state of all currently
available serial ports (virtual or physical).
¾ Global V24 sleep mode is entered when all v24 available ports are in sleep
mode state.
¾ Global V24 sleep mode is left when at least one of the v24 available ports is not
in sleep mode state.