56k Modem. 56k modem is another term for a V.90 or V.92 modem.
Asymmetric digital subscriber line modem. See ADSL Modem.
Asymmetric Modem. An asymmetric modem provides different data rates on the upstream and downstream links.
Bell 103 Modem. Bell 103 is an American standard for PSTN modems with a bit rate of 300 bps.
Bell 212A Modem. Bell 212A is an American standard for PSTN modems with a maximum bit rate of 1.2 kbps.
Cable Modem. Broadband access via a cable modem is achieved by transmitting data over an existing hybrid fibre/coaxial cable (HFC) network installed for delivering cable television.
Data Compression in Modems. Data compression is provided by some modem standards to increase the throughput on the modem link.
Digital Subscriber Line Modem. See DSL Modem.
Echo Suppression. Echo suppression is used in telephone networks to reduce the impact of echo and thereby improve voice quality.
Fax Modem. A fax modem is used to convert the compressed image representating a page into a form suitable for passing over the telephone network.
Forward Error Correction. Forward Error Correction describes the adding of redundancy to a digital transmission to enable transmission errors to be detected and corrected at the receiver.
Group 3 Fax Modem. A group 3 fax modem is part of the ITU Group 3 fax standard.
Microcom Networking Protocols Class 1. See MNP Class 1.
Microcom Networking Protocols Class 10. See MNP Class 10.
Microcom Networking Protocols Class 2. See MNP Class 2.
Microcom Networking Protocols Class 3. See MNP Class 3.
Microcom Networking Protocols Class 4. See MNP Class 4.
Microcom Networking Protocols Class 5. See MNP Class 5.
Microcom Networking Protocols Class 6. See MNP Class 6.
Microcom Networking Protocols Class 7. See MNP Class 7.
Microcom Networking Protocols Class 8. See MNP Class 8.
Microcom Networking Protocols Class 9. See MNP Class 9.
MNP. See Microcom Networking Protocols.
MNP Class 10 (Microcom Networking Protocols Class 10). MNP Class 10·consists of four protocols known collectively as adverse channel enhancements (ACE) that were designed for inherently unreliable circuits such as cellular transmission.
Modem Cable. A modem cable is used to connect a modem to a computer.
Modem Drivers. Modem drivers are software programs that are required for modems that are directly connected to a computer's bus.
Modems. Modems are used in almost all long-distance digital communications systems.
PCI Modem. A PCI modem is one that plugs into a computer's PCI bus.
PCMCIA Modem. A PCMCIA Modem is a modem that is plugged into the PCMCIA port of a computer.
Radio Frequency Modem. See RF Modem.
RF Modem (Radio Frequency Modem). An RF modem converts a digital signal into a form suitable for carriage over an analogue communications link, and upconverts this signal to higher frequency for transmission.
Symmetric Modem. A symmetric modem provides the same data rate on the upstream and downstream links.
TCM. See Trellis Coded Modulation.
USB Modem. A USB modem is a modem that connects to a computer's USB port.
V.17 Modem. V.17 is an ITU fax modem standard.
V.21 Modem. V.21 is an ITU fax modem standard.
V.22bis Modem. V.32 is an ITU standard for PSTN modems with a maximum bit rate of 2.4 kbps.
V.27ter Modem. V.27ter is an ITU fax modem standard.
V.29 Modem. V.29 is an ITU fax modem standard.
V.32 Modem. V.32 is an ITU standard for PSTN modems with a maximum bit rate of 9.6 kbps.
V.32bis Modem. V.32bis is an ITU standard for PSTN modems with a maximum bit rate of 14.4 kbps.
V.32ter Modem. V.32ter is an ITU standard for PSTN modems with a maximum bit rate of 19.2 kbps.
V.34 Modem. V.34 is an ITU standard for PSTN modems with a maximum bit rate of 28.8 kbps.
V.90 Modem. V.90 modems were approved in February 1998 to achieve significantly higher data rates (up to 56 Kbps) because upstream data is sent by analogue transmission while downstream data is transmitted in digital format.
V.92 Modem. A V.92 modem is very similar to a V.90 modem.
Voice Frequency Modem. See VF Modem.
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