(2) - If either of these modes are selected, the pin will indicate if the Modem is holding one or
more unsent messages until they can be transmitted. If multiple messages are pending for the
user, the pin will maintain the state until all messages have been sent.
(3) - If either of these modes are selected, the pin will indicate if the Modem is holding at least
one unread incoming message or at least one unsent outgoing message.
(4) - If either of these modes are selected, the pin will be set to the selected state after the user
has issued the
$SL
command. The pin will return to the awake state only if the sleep mode is
terminated by the wakeup time parameter being reached, or alternatively if activity is detected
on the serial RX line.
© 2022 SWARM TECHNOLOGIES
SWARM M138 MODEM PRODUCT MANUAL · REV 1.20 · FEBRUARY 2022
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