DART 200 CDPD Modem User's Guide

DART 200 CDPD Modem User's Guide
Sierra Wireless, Inc. viii
Auto-Registration/De-Registration at connection/disconnection 8-8
Deregistration 8-8
Data forwarding 8-8
Manual transmit control 8-9
Automatic transmit control 8-9
Maximum packet size transmit control 8-10
Escape transmit control 8-11
Usage considerations (for TCP and UDP) 8-11
Auto answer setup 8-11
Flow control considerations 8-12
Flow control and the new end-user 8-13
Flow control in application (online) mode 8-13
Hardware flow control operation 8-14
PAD operating mode 8-14
Data and control interface 8-15
CDPD status sensing 8-15
Escaping through the control interface 8-16
Binary data transfer 8-16
Flow control considerations 8-17
Data forwarding considerations 8-17
Parity considerations 8-17
PAD keep-alive considerations 8-18
Timer expiry in transmit mode 8-19
Timer expiry in receive mode 8-19
Timer expiry for keep-alives 8-19
Escape sequence considerations 8-20
Command response options 8-20
Echo option selection 8-21
Channel acquisition restrictions 8-22
Baud considerations 8-22
Maximum block size considerations 8-23
Modem dial directory 8-24
Messages and response codes 8-25
Messages 8-25