Silicon Laboratories SI2493/57/34/15/04, SI2494/39 manual Class 1 Transmit Carrier

Models: SI2493/57/34/15/04 SI2494/39

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AN93

Table 39. Basic AT Command Set (Continued)

Command

 

Action

 

 

 

Class 1 Transmit Carrier.

 

X

Mode

 

2

Transmit V.21 (980 Hz) tone and detect (2100/2225 Hz).

 

 

Stop transmit 980 Hz when (2100/2225 Hz is detected.

 

53

Same as &T4, but transmit V.29 7200 bps. Data pattern

 

 

set by S40 register. AT + FCLASS = 0 must be sent to

 

 

restore the ISOmodem to normal operation after test.

+FTM = X

54

Same as &T4, but transmit V.29 9600 bps. Data pattern

 

set by S40 register. AT + FCLASS = 0 must be sent to

 

 

 

 

restore the ISOmodem to normal operation after test.

 

95

V.29 short synchronous.

 

96

V.29 full synchronous.

 

201

Returns to data mode prepared to transmit an SMS pro-

 

tocol 1 message.

 

202

Returns to data mode prepared to transmit an SMS pro-

 

tocol 2 message.

68

Rev. 1.3

Page 68
Image 68
Silicon Laboratories SI2493/57/34/15/04, SI2494/39 manual Class 1 Transmit Carrier