SI2457-D-FS Silicon Laboratories Inc, SI2457-D-FS Datasheet - Page 180
SI2457-D-FS
Manufacturer Part Number
SI2457-D-FS
Description
IC ISOMODEM SYSTEM-SIDE 16SOIC
Manufacturer
Silicon Laboratories Inc
Specifications of SI2457-D-FS
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Table 112. <DLE> Simple Events (DCE-to-DTE) (Continued)
Receive buffer overrun
Transmit buffer underrun.
Fax Calling. DCE has detected T.30 1100 Hz tone.
Data Calling. DCE has detected V.25 1300 Hz tone.
Line voltage collapsed (phone line detached).
Line voltage restored (phone line reattached).
Presumed End of Message (QUIET).
Loop current interruption.
Busy tone detected.
Dial tone detected.
Ringing tone detected.
Line voltage increased (parallel phone goes on-hook). DCE monitors loop current when
off-hook and line voltage when on-hook.
Line voltage decreased (parallel phone goes off-hook). DCE monitors loop current when
off-hook and line voltage when on-hook.
Fax or data answer. DCE has detected T.30 2100 Hz or V.21 1650 Hz answer tone.
Data answer. DCE has detected 2225 Hz, USB1 or AC answer sequence.
Negative (decreased) loop-current drift detected.
Positive (increased) loop-current drift detected.
Format: <DLE>[Code]
Rev. 1.3
Description
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