SI2457-D-FT Silicon Laboratories Inc, SI2457-D-FT Datasheet - Page 227

• Manufacturer Part Number: SI2457-D-FT
• Description: IC ISOMODEM SYSTEM-SIDE 24TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2457-D-FT

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 143 lists the definitions of result codes typically expected in an SIA session.
OK
CONNECT
RING
NO CARRIER
ERROR
BUSY
Result Code
Table 143. Definitions of Result Codes Typically Expected in an SIA Session
Ready for next command
(or ACK)
Physical handshake is completed.
Incoming ring
Invalid AT command
(or NACK)
Meaning
Rev. 1.3
When it comes as a response to the +F2 command,
“OK” means ACK
In SIA FSK mode, CONNECT means that the
modem is in the data passing state ready to receive
or transmit data.
Note: there is an extra space character between the
letter T and the carriage return delimiter.
In V.32bis mode, CONNECT is followed by the DCE
connection speed: e.g., CONNECT 14400
Modem should answer the incoming call; the host
can command this with ATA.
Connection is terminated
As a response to the +F2 command, “ERROR”
means NACK; otherwise, it means invalid com-
mand.
Dialed number is Busy.
Remarks
AN93
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