-Transceiver-



General Questions
 

Q08: What is Transceiver?  (2000/5/31)
Q07: Whats the relationship between Transceiver and Duplex mode?  (2000/5/31)
Q06: What is 10Base-2 Transceiver?  (2000/5/31)
Q05: What is 10Base-T Transceiver?  (2000/5/31)
Q04: What is 10Base-FL Transceiver?  (2000/5/31)
Q03: What is 10Mbps converter?  (2000/5/31)
Q02: What is Fast Ethernet Transceiver?  (2000/5/31)
Q01: Why need different cable media for cabling?  (2000/5/31)

 

Q08: What is Transceiver?

Transceiver is combination of Transmitter and Receiver electronic circuits it is a physical hardware device.

For Ethernet device, the Media Access Control circuit provide AUI (Attachment Unit Interface) to interface to Transceiver. While Transceiver transfer the digital signals to physical media for coaxial cable, twisted-pair cable or fiber optics. For Fast Ethernet device, the MAC controller provide MII (Media Independent Interface) to interface to Transceiver. In modern high integration products, most of the switches and hubs already build in transceiver into circuit, didnt provide such interface for other media options.

 

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Q07: Whats the relationship between Transceiver and Duplex mode?

In a kind of transceiver, the receiver is silenced while transmitting, an electronic switch allows the transmitter and receiver to be connected to the same media, and prevents the transmitter output from damaging the receiver. With a transceiver of this kind, it is impossible to receive signals while transmitting. This mode is called half duplex.

Some transceivers are designed to allow reception of signals during transmission periods. This mode is known as full duplex.


 

Q06: What is 10Base-2 Transceiver?

The 10Base-2 Transceiver is a device provide AUI interface to coaxial cable Ethernet with BNC connector.

The BNC port for coaxial cable specification is complaint to Ethernet 10Base-2 standards.


 

Q05: What is 10Base-T Transceiver?

The 10Base-T Transceiver is a device provide AUI interface to twisted-pair cable Ethernet with RJ-45 connector.

The RJ-45 port for twisted-pair cable specification is complaint to Ethernet 10Base-T standards.

 

Q04: What is 10Base-FL Transceiver?

The 10Base-FL Transceiver is a device provide AUI interface to fiber optic cable Ethernet with ST or SC connector.

The ST/SC port for fiber optic cable specification is complaint to Ethernet 10Base-FL standards.

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Q03: What is 10Mbps converter?

For Ethernet, 10Base-T and 10Base-FL are both using CSMA/CD protocol, the only difference is cable media.

It is possible to convert twisted-pair to fiber optic cable by 10Mbps converters. The distance for twisted pair is 100 meter (330 ft); Fiber optic is 2000 meter (6600ft).
 

Q02: What is Fast Ethernet Transceiver?

There are 100Base-FX Transceiver (MII to ST) and (MII to SC).
 

Q01: Why need different cable media for cabling?

There are different cables may affect the speed and distance of networking. For example:

CAT 5 UTP cable:
Four pairs wrapped in a thermal plastic insulator, twisted around one another and encased in a flame-retardant polymer Maximum operating frequency: 100 MHz; suitable for token ring, Ethernet, fast Ethernet, gigabit Ethernet (after mid-1998), and 155-Mbit/s ATM.

CAT 5e UTP cable:
Same as Cat 5, but the manufacturing process is refined and the cable is of a higher grade. Maximum operating frequency: Up to 200 MHz; suitable for token ring, Ethernet, fast Ethernet, gigabit Ethernet (after mid-1998), and 155-Mbit/s ATM.

CAT 6 SFTP cable:
Four pairs wrapped in foil insulators and twisted around one another; an extra insulating shield; and a flame-retardant polymer jacket. Maximum operating frequency: 600 MHz; suitable for Ethernet, fast Ethernet, gigabit Ethernet (after mid-1998), and 155-Mbit/s ATM.

Multimode fiber:
Glass cable that transmits data as pulses of light. Maximum operating frequency is not limited, suitable for all high-speed networking applications List price: About $400 per 1,000 feet, but connecting hardware costs are much higher than those of copper counterparts.

Single Mode fiber:
Similar to the Multi mode fiber with more longer distance and higher price.

With various applications, it is required to provide converter/transceiver for different installations.

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EUSSO Technologies, Inc. is a dedicated data communication and networking company. With professional experiences in design, production, marketing and service support, we deliver the full range networking products including Gigabit Ethernet, Fiber Optic, Wireless LAN, Switches, Hubs, LAN cards, PCMCIA adapters, Converter, Transceivers. As well as Internet Telephony Gateway, Print Servers, Broadband Router and many others.

Copyright EUSSO Technologies, Inc. 2003