Multi-Tech Systems MultiModem USB MT5634ZBA-USB User Manual
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12
MultModemUSB User Guide
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
Environmental
Temperature range 0°–50°C (32°–120°F); humidity range 20–90%
(non-condensing)
Dimensions
10.8 cm wide x 14.8 cm long x 2.9 cm high (4.25" x 5.8" x 1.15")
Weight
224 g (8 oz)
Limited Warranty
10 years