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- COURIER HIGH SPEED MODEMS
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- APPENDIX H. TECHNICAL SPECIFICATIONS
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- USROBOTICS HIGH SPEED TECHNOLOGY (HST)
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- 14.4K bps, synchronous/asynchronous,
- asymmetrical, 14.4K/450 or 14.4K/300 bps
- with automatic handshake adjustment to
- 300 bps, Trellis Coded Modulation (TCM),
- Quadrature Amplitude Modulation (QAM)
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- 12K bps, synchronous/asynchronous,
- asymmetrical, 12K/450 or 12K/300 bps
- with automatic handshake adjustment to
- 300 bps, Trellis Coded Modulation (TCM),
- Quadrature Amplitude Modulation (QAM)
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- 9600 bps, synchronous/asynchronous,
- asymmetrical, 9600/450 or 9600/300 bps
- with automatic handshake adjustment to
- 300 bps, Trellis Coded Modulation (TCM),
- Quadrature Amplitude Modulation (QAM)
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- 7200 bps, synchronous/asynchronous,
- asymmetrical, 7200/450 or 7200/300 bps
- with automatic handshake adjustment to
- 300 bps, Trellis Coded Modulation (TCM),
- Quadrature Amplitude Modulation (QAM)
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- 4800 bps, synchronous/asynchronous,
- asymmetrical, 4800/450 or 4800/300 bps
- with automatic handshake adjustment to
- 300 bps, Quadrature Amplitude Modulation
- (QAM)
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- CCITT V.32 BIS
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- 14.4K bps, synchronous/asynchronous,
- Trellis Coded Modulation (TCM)
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- Technical Specifications H-1
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- COURIER HIGH SPEED MODEMS
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- 12K bps, synchronous/asynchronous,
- Trellis Coded Modulation (TCM)
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- 9600 bps, synchronous/asynchronous,
- Trellis Coded Modulation (TCM)
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- 7200 bps, synchronous/asynchronous,
- Trellis Coded Modulation (TCM)
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- 4800 bps, synchronous/asynchronous,
- Quadrature Amplitude Modulation (QAM)
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- H-2 Technical Specifications
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- COURIER HIGH SPEED MODEMS
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- ADDITIONAL COMPATIBILITY FEATURES
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- CCITT V.25 2100 Hz tone
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- CCITT V.23, 1200 bps, asymmetrical
- (1200/75 bps), Frequency Shift Keying
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- CCITT V.22 bis, 2400 bps, synchronous/
- asynchronous, Quadrature Amplitude
- Modulation (QAM)
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- CCITT V.22, 1200 bps,
- synchronous/asynchronous, Differential
- Phase Shift Keying (DPSK)
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- Bell 212A, 1200 bps,
- synchronous/asynchronous, Differential
- Phase Shift Keying (DPSK)
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- Bell 103, 300/110 bps, asynchronous,
- Frequency Shift Keying (FSK)
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- CCITT V.21, 300 bps, asynchronous,
- Frequency Shift Keying (FSK)
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- 300/110 bps, asynchronous, variable
- Frequency Shift Keying (FSK)
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- USRobotics HST error control protocol,
- asymmetrical mode, at
- 14.4K/12K/9600/7200/4800 bps, 450/300
- bps back channel
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- CCITT V.42 error control protocol at
- 14.4K/12K/9600/7200/4800 bps (V.32 bis
- mode) and at 2400/1200 bps
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- CCITT V.42 bis data compression
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- Microcom Networking Protocol (MNP) error
- control protocol, Levels 2-4 at
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- Technical Specifications H-3
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- COURIER HIGH SPEED MODEMS
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- 14.4K/12K/9600/7200/4800 bps (V.32 bis
- mode) and at 2400/1200 bps
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- Microcom Networking Protocol (MNP) Level
- 5 data compression at
- 14.4K/12K/9600/7200/4800/2400/1200 bps
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- DB-25 RS-232 terminal/modem interface
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- Superset of industry standard AT command
- set, S-registers, DIP switches
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- Optional MI/MIC closure
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- Optional pulsed DSR
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- H-4 Technical Specifications
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- COURIER HIGH SPEED MODEMS
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- DTE RATES
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- 38.4K, 19.2K, 9600, 4800, 2400, 1200,
- 300, 110 bps
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- LINK RATES
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- 14.4K, 12K, 9600, 7200, 4800, 2400,
- 1200, 300, 110 bps
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- ONLINE FALLBACK/FALL FORWARD
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- 14.4K, 12K, 9600, 7200, 4800 bps
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- PHONE LINE INTERFACE
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- RJ11, RJ45S phone jacks
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- COMMUNICATIONS CHANNEL
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- Full/half duplex on 2-wire dial-up,
- dedicated, or leased phone lines;
- demand-driven high speed channel
- turnaround in HST mode; symmetrical
- speeds in V.32 bis mode
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- OPERATIONAL MODES
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- Synchronous/Asynchronous, Auto
- Dial/Answer, Manual Originate/Answer,
- Smart/Dumb mode
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- DIALING
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- Rotary (pulse 0-9), Touch-Tone (DTMF 0-
- 9, #, *), a-z when in Quote (") Mode
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- Technical Specifications H-5
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- COURIER HIGH SPEED MODEMS
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- DATA FORMAT
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- Binary, serial; defaults to 7-bit word
- length, even parity
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- Start Data Stop
- Bits Bits Parity Bits
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- 1 7 Even, Odd 1
- Mark, Space
- 1 7None, Even, Odd,2
- Mark, Space
- 1 8 None 1, 2
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- H-6 Technical Specifications
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- COURIER HIGH SPEED MODEMS
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- FRONT PANEL STATUS LIGHTS
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- HS High Speed (above 2400 bps)
- AA Auto Answer/Answer
- CD Carrier Detect
- OH Off Hook
- RD Received Data
- SD Send Data
- TR Terminal Ready (DTR)
- MR Modem Ready/Test Mode
- RS Request to Send
- CS Clear to Send
- SYN Synchronous Mode
- ARQ Error control connection
- established
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- FLOW CONTROL BUFFERS
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- Transmit Buffer
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- Error control: 3.25k bytes
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- Non-Error control: 1.5k bytes, 128-
- byte option
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- Receive Buffer: 2K bytes
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- COMMAND BUFFER
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- 40 characters, exclusive of AT prefix,
- Carriage Return and spaces
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- TEST OPTIONS
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- Analog loopback with test pattern
- Remote digital loopback
- Digital loopback
- Test pattern
- Dial test
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- Technical Specifications H-7
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- COURIER HIGH SPEED MODEMS
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- CALL PROGRESS CODES
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- NO DIAL TONE
- BUSY
- NO ANSWER
- RINGING
- VOICE
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- FAILED CALL TIMEOUT
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- 60-sec. default, programmable 2-255 sec.
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- ANSWER TONE TIMEOUT
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- 60 sec.
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- ANSWER TONE DETECTOR
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- 2200-2300 Hz
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- LOSS OF CARRIER (DISCONNECT TIMER)
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- 0.7-sec. default, programmable 0.2-25.5
- sec.
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- EQUALIZATION
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- Adaptive
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- TRANSMITTER CARRIER FREQUENCIES
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- USR-HST, 450 bps back channel
- Originate Mode:375 Hz
- Answer Mode:1800 Hz
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- USR-HST, 300 bps back channel
- Originate Mode:350 Hz
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- H-8 Technical Specifications
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- COURIER HIGH SPEED MODEMS
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- Answer Mode:1800 Hz
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- V.32 bis
- Originate Mode:1800 Hz
- Answer Mode:1800 Hz
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- Technical Specifications H-9
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- COURIER HIGH SPEED MODEMS
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- V.23
- Originate Mode:
- Mark:390 Hz
- Space:450 Hz
- Answer Mode:
- Mark:1300 Hz
- Space:2100 Hz
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- 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
- Space:2025 Hz
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- V.21
- Originate Mode:
- Mark:980 Hz
- Space:1180 Hz
- Answer Mode:
- Mark:1650 Hz
- Space:1850 Hz
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- RECEIVER CARRIER FREQUENCIES
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- USR-HST, 450 bps back channel
- Originate Mode:1800 Hz
- Answer Mode:375 Hz
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- USR-HST, 300 bps back channel
- Originate Mode:1800 Hz
- Answer Mode:350 Hz
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- V.32 bis
- Originate Mode:1800 Hz
- Answer Mode:1800 Hz
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- H-10 Technical Specifications
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- COURIER HIGH SPEED MODEMS
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- V.23
- Originate Mode:
- Mark:1300 Hz
- Space:2100 Hz
- Answer Mode:
- Mark:390 Hz
- Space:450 Hz
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- V.22 bis, V.22, Bell 212A
- Originate Mode:2400 Hz
- Answer Mode:1200 Hz
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- Bell 103
- Originate Mode:
- Mark:2225 Hz
- Space:2025 Hz
- Answer Mode:
- Mark:1270 Hz
- Space:1070 Hz
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- V.21
- Originate Mode:
- Mark:1650 Hz
- Space:1850 Hz
- Answer Mode:
- Mark:980 Hz
- Space:1180 Hz
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- RECEIVE SENSITIVITY
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- - 44 dBm + 2 dBm
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- TRANSMIT LEVEL
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- - 9 dBm maximum
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- TRANSMITTER FREQUENCY TOLERANCE
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- .01%
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- Technical Specifications H-11
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- COURIER HIGH SPEED MODEMS
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- CERTIFICATION
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- FCC Part 68 and Part 15, Class B
- Domestic; DOC (Canada), UL listed
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- POWER CONSUMPTION
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- 5 watts
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- SIZE
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- 8.30 x 12.65 x 1.57 inches
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- H-12 Technical Specifications
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