Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 763)

APPENDIXES
Technical Appendixes
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WM_DEV_OAT_UGD_049 - 001 APPENDIXES August 23, 2007
During the preliminary Wake Up sequence, if no F9F9F9 is received within T3 timer,
the Wireless CPU ® takes the decision to close all the ports assuming that there is no
more CMUX driver in the remote side.
F9F9F9 protocol wake up frame
F9F9F9 wake up response
Valid frame: test frame "MUXWAKEUP"
Test frame response
An unsolicited AT response ("RING") is to be
sent out
WAVECOM Wireless CPU
®
(DCE) DTE 27.010 driver
DTE Application
(e.g. Hyperterminal on PC)
PC stops sending F9F9F9
when receiving valid frame
UIH frames
DCE sends "RING" unsolicited string
through 27.010
Protocol PSC Sleep On
PSC response
Preliminary
Wake up phase
DCE "unsolicited
response sending"
phase