US Robotics COURIER - Page 205

COURIER HIGH SPEED MODEMS
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V.23
Originate Mode:
Mark:
390Hz
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Space:
450Hz
Answer Mode:
Mark:
1300 Hz
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Space:
2100 Hz
V.22 bis, V.22, Bell 212A
-Originate Mode:
1200 Hz
Answer Mode:
2400 Hz
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Bell 103
Originate Mode:
Mark:
1270 Hz
-Space:
1070 Hz
Answer Mode:
Mark:
2225 Hz
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Space:
2025 Hz
V.21
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Originate Mode:
Mark:
980Hz
Space:
1180 Hz
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Answer Mode:
Mark:
1650 Hz
Space:
1850 Hz
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RECEIVER CARRIER FREQUENCIES
USR-HST, 450 bps back channel
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Originate Mode:
1800 Hz
Answer Mode:
375 Hz
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USR-HST, 300 bps back channel
Originate Mode:
1800 Hz
Answer Mode:
350Hz
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V.32 bis
Originate Mode:
1800 Hz
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Answer Mode:
1800 Hz
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H-6
Technical Specifications
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