User's Guide

SB300 Series Modems User’s Guide
2110059 Rev 1.1 Proprietary and Confidential Page vii
4.5. Modem Handshaking (SB320).........................................................................25
4.5.1. Modem Protocol Layers....................................................................25
4.5.2. CSC vs. Wireline ..............................................................................27
5. CDPD Operation .......................................................................... 29
5.1. Cellular Digital Packet Data (CDPD) Introduction ........................................29
5.1.1. Security ............................................................................................29
5.1.2. Architecture......................................................................................30
5.1.3. Modem Registration .........................................................................30
5.1.4. CDPD Radio Coverage .....................................................................31
5.1.5. CDPD and the SB300 Series Modems ...............................................31
5.2. Configuring NEI Entries .................................................................................32
5.2.1. NEI Table.........................................................................................32
5.2.2. SPNI Matching .................................................................................33
5.3. CDPD Network Registration ...........................................................................33
5.3.1. Active and Auto-register NEI Indices ................................................34
5.3.2. Manual Registration..........................................................................34
5.3.3. Automatic Registration .....................................................................35
5.3.4. De-registration..................................................................................35
5.4. Monitoring the Network Connection...............................................................36
5.4.1. Radio Signal Monitors ......................................................................36
5.4.2. Registration Status............................................................................36
5.4.3. PING................................................................................................37
5.5. Sleep Mode.......................................................................................................38
5.5.1. CDPD Sleep .....................................................................................38
5.5.2. Logic Sleep.......................................................................................38
5.6. Friends Only ....................................................................................................39
5.7. Dial Directory ..................................................................................................39
5.8. Packet Services ................................................................................................39
5.8.1. Serial Line Interface Protocol (SLIP).................................................40
5.8.2. User Datagram Protocol (UDP).........................................................42
5.8.3. Transmission Control Protocol (TCP)................................................48
5.9. Packet Assembly Management ........................................................................54
5.10. Data and Telemetry Applications .............................................................55