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Sierra Wireless DART 200 CDPD Modem User Manual

Page 38

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DART 200 CDPD Modem User’s Guide

2 Installation and Setup

Sierra Wireless, Inc.

2-14

If the problem persists after checking the above possibilities, try power
cycling the modem. If that fails to help, contact your modem supplier for
assistance.

To determine if you have a channel restriction problem check the setting
of the \J parameter with an AT&V. If it is \J0 then the DART 200 has no
channel restrictions, so this can be eliminated as a possible source of the
problem. If \J has any other value then bypass the problem by entering
the AT\J0 command followed by an AT&W.

The S-Registers of interest in the AT&V+ output are summarized in
Table 2-1. The remainder of S-Registers are described in Appendix E,
S-Registers.

Table 2-1. S-Registers above 100

S100

The channel currently being reported (may not be acquired)

S101

Will be 1 if a channel has been acquired

S102

RSSI for the channel being reported

S103

Output power (0 to 7 with 0 being highest and 7 lowest)

S104

MDBS power product (a request for a specific power output)

S105

Current BLER (receive block error rate - %)

S106

Current SER (symbol error rate - %)

S107

Current LSAI (CDPD V1.0), or WASI (CDPD V1.1)

S108

Current SPNI (service provider network identifier)

S109

Current CSI (channel stream identifier)

S110

Current LCI (local cell identifier)

S111

Current Area/Cell color code

S112

Current TX BLER (transmit block error rate - %)

S113

Current SIE (symbols in error)

S114

Current SPI (Service Provider ID) (CDPD V1.1)
XID RSSI threshold, time (CDPD V1.0)
* threshold is dBw above -143 (in this case -125);
* time (in 1/10 sec) is how long RSSI can be below threshold before a
channel hop must be taken (5 seconds in this case)

S115

Not Used (CDPD V1.1)
XID BLER threshold, time (CDPD V1.0)
* Block error rate threshold (1/n) in % (10% in this case)
* time (in 1/10 sec) is how long BLER can be above threshold before
a channel hop must be taken (1 second in this case)

S116

Not Used (CDPD V1.1)
XID SER threshold, time (CDPD V1.0)
* Symbol error rate threshold (1/n) in % (10% in this case)
* time (in 1/10 sec) is how long RSSI can be below threshold before a
channel hop must be taken (5 seconds in this case)

S117

Reserved

S118

Reserved

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S126

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