Specifications

Si2404
Rev. 0.91 13
Carrier Detect (level for ITU-T V.22bis,
V.22, V.21, 212, 103) in Switched Network
Acquisition (–43 dBm)
Release (–48 dBm)
Hysteresis 2 dBm minimum
DTE Interface EIA/TIA-232-E (ITU-T V.24/V.28/ISO 2110)
Line Equalization Automatic Adaptive
Connection Options Loss of Carrier in ITU-T V.22bis and lower
Phone Types 500 (rotary dial), 2500 (DTMF dial)
Dialing Pulse and Tone
DTMF Output Level Per Part 68
Pulse Dial Ratio Make/Break: 39/61%
Ring Cadence On 2 seconds; Off 4 seconds
Call Progress Monitor BUSY
CONNECT (rate)
NO ANSWER
NO CARRIER
NO DIALTONE
OK
RING
RINGING
Table 7. Protocol Characteristics (Continued)
Item Specification