Siemens AC75 manual Atsad Antenna Diagnosis, Atsad=?, SAD diag +CME Error err, Diagnum

AC75 AT Command Set

19.3 AT^SAD

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19.3AT^SAD Antenna Diagnosis

The AT^SAD command checks the presence and the connection status of the antenna by measuring the DC resistance inside the antenna feed point. To allow the ME to detect the antenna, take care that the antenna circuit meets the requirements specified in [2].

The exec command can be executed no matter whether the ME is registered to the network or deregistered. The antenna diagnosis delivers the present status of the antenna connection.

The following error messages may be returned by the AT^SAD command:

•"+CME ERROR: operation temporary not allowed"

AC75 is initializing, antenna diagnosis is currently not possible. Please wait a few seconds.

•"+CME ERROR: phone busy"

The calculation of the antenna status takes too much time because system resources are tight at the moment (for example in network scan mode). Please wait a few seconds.

Syntax

Test Command

AT^SAD=?

Response(s)

^SAD: (list of supported<diag>s)

OK

Exec Command

AT^SAD

Response(s)

^SAD: <diag>

OK

+CME ERROR: <err>

Reference(s)

SIEMENS

PIN ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge 4 Last

- + + + + + + - + -

Parameter Description

<diag>(num)

Antenna diagnosis value
0	Normal operation, antenna connected, resistance at feed point as required
1	Antenna connector short-circuited to ground
2	Antenna connector is short circuited to the supply voltage of the host applica-
	tion, e.g. the vehicle's on-board supply voltage (max. 36V)
3	Antenna not properly connected or resistance at antenna feed point wrong or
	not present

AC75_ATC_V01.002	Page 485 of 569	10/30/06
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