Sierra Wireless 300 Benutzerhandbuch

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DART 300 Migration Guide 
 
Difference Summary 
 
2110291 Rev 1.0 
 
Page 13 
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 
Strength (%) 
Not supported. 
+WS50 
Registration status 
S57 (odd value) 
+WS56 (=1) 
Registration result code
1
 S56 
+WS201 
Current Channel 
S100 
+WS200 
Current Cell Number 
S110 
+WS210 
1
Values 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