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MT5634ZBA-USB User Guide
Carrier Frequencies
Transmit originate: 1200 Hz
V.22bis/V.22 or
Transmit answer: 2400 Hz
Bell 212A Standard
Receive originate: 2400 Hz
(2400 & 1200 bps)
Receive answer: 1200 Hz
Carrier Frequencies
Transmit originate: 390 Hz mark
ITU-T V.23
450 Hz space
(1200 bps)
Receive originate: 1300 Hz mark
2100 Hz space
Transmit answer: 1300 Hz mark
2100 Hz space
Receive answer: 390 Hz mark
450 Hz space
Carrier Frequencies
Transmit originate: 980 Hz mark
ITU-T V.21
1180 Hz space
(0–300 bps)
Receive originate: 1650 Hz mark
1850 Hz space
Transmit answer: 1650 Hz mark
1850 Hz space
Receive answer: 980 Hz mark
1180 Hz space
Carrier Frequencies
Transmit originate: 1270 Hz mark
Bell 103/113
1070 Hz space
(0–300 bps)
Receive originate: 2225 Hz mark
2025 Hz space
Transmit answer: 2225 Hz mark
2025 Hz space
Receive answer: 1270 Hz mark
1070 Hz space
Fax Carrier
V.21 Ch2 (half duplex):
Frequencies
1650 Hz mark, 1850 HZ space for transmit originate
1650 HZ mark, 1850 Hz space for transmit answer
V.27ter: 1800 Hz originate/answer
V.29 QAM: 1800 Hz originate/answer
V.17 TCM: 1800 Hz originate/answer
Transmit Level
-11 dBm (dial-up)
Frequency Stability
±0.01%
Receiver Sensitivity
-43 dBm under worst-case conditions
AGC Dynamic Range
43 dB
Connectors
USB connector; two RJ-11 phone jacks
Cables
One 7-foot RJ-11 phone cable
One 4-foot USB cable
Note: Any cables connected to the computer should be
shielded to reduce interference.
Diagnostics
Power-on self test, local analog loop, local digital loop,
remote digital loop.
Indicators
LEDs for Transmit Data, Receive Data, Carrier Detect, Off
Hook, Terminal Ready, Power