Sierra Wireless 300 Operation, Monitoring Network Connection, Channel Acquisition Restrictions

DART 300 Migration Guide Difference Summary

3.2.Operation

3.2.1.Monitoring Network Connection

Both modems provide mechanisms to monitor the CDPD network connection although the methods to access this information differ.

	DART 200	DART 300
Signal Strength in -dBm	S102	+WPRSSI
Normalized Signal	Not supported.	+WS50
Strength (%)
Registration status	S57 (odd value)	+WS56 (=1)
Registration result code1	S56	+WS201
Current Channel	S100	+WS200
Current Cell Number	S110	+WS210

1Values returned by the respective modems for the registration result code differ in their interpretation. The DART 200 showed the most recent carrier-returned result code. The DART 300 shows a series of registration progress codes that will continually change as the process proceeds. The registration result code is part of this progression, but its value is not maintained in +WS201. To determine the actual result code, this register must be continually monitored during the auto-registration process. Consult the AT command references for specifics.

3.2.2.Channel Acquisition Restrictions

The DART 300 supports only the SPNI matching restriction. This is automatic when there is an entry in the SPNI list. The DART 200 supported SPNI, SPI, and WASI matching restrictions that were controlled using \Jn, and a SPNI, SPI, or WASI list. The DART 300 does not support these additional options.

	DART 200	DART 300
SPI – Service Provider ID	Yes (up to 10)	N/A
SPNI – Service Provider Network ID	Yes (up to 10)	Yes (up to 10)
WASI – Wide Area Service ID	Yes (up to 10)	N/A
LSAI – Local Service Area ID	Yes (up to 10)1	N/A

1 Available in CDPD V1.0 only

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