chapter 5 Compare and Contrast Transmission Media and Transceivers

802.11 Standards

Wireless networking standards such as Wi-Fi

Cellular

Mobile network connectivity such as 4G and 5G

Satellite

Internet access via satellite signals

802.3 standards

Ethernet working standards

Single-mode

Single very thin core, for long distance. More expensive and higher bandwidth

Multi-mode

Wider core and allows for multiple light paths. Best for shorter distances

Direct Attach Copper (DAC) cable

Short distance high speed connections. Preferred in smaller environments to connect devices

Twinaxial cable

High speed cable for data centers (double wire)

Coaxial cable

Single wire. Cable for TV, internet, and radio signals

Cable speeds

Data transmission rates of various cables

Plenum Cable

Fire resistance cable designed for HVAC systems with flame retardant and low smoke emission and nontoxic gas properties

Ethernet protocol

Networking protocol for wired connections

Fibre Channel Protocol (FCP)

Protocol designed for high speed data transfer in SANs (storage are networks)

Transceivers

A device that combines a transmitter and a receiver into a single module

SFP (Small form-factor pluggable)

Compact transceiver used in networking equipment for Ethernet and fiber channel connections. Ideal for connecting devices to fiber optic or copper cables. 1Gbps

QSFP (Quad small form-factor pluggable)

Designed for higher data rates. Supports speeds up to 40 Gbps (QSFP) or even 100 Gbps (QSFP28)

SC (subscriber connector)

Used in fiber optic connections, often in patch panels. Snap in

LC

Common in fiber optic connections. Snap in design and used in modern networks ideal for high density environments.

ST (Straight Tip)

Fiber optic connection in legacy systems twist and lock

MPO (multi-fiber push on)

High density fiber optic connections. Flat connector housing multiple fibers common in data centers. 40/100 Gbps networks common with QSFP transceivers

RJ11

Used in telephone and digital subscriber line connections (DSL). Small four pin connector

RJ45

Connector commonly used with Ethernet cables such as cat 5,6, and 7 cables. Small 8pins used to connect computers, routers, switches, and other network devices to create LANs

F type

Coaxial cable connector screw on for cable TV and the internet

BNC (Bayonet Neill-Concelman)

Quick lock connector used with coaxial cables for video, radio, and legacy networking. Common on CCTV and RF equipment

BNC Barrel

Small coupler used to join two BNC cables

BNC T

Coaxial connector shaped like a T that has three ports commonly used in networking, broadcasting, and instrument applications.

802.11a

54Mbps 5GHz

802.11b

11 Mbps 2.4 GHz

802.11g

54 Mbps 2.4 GHz

802.11n

600 Mbps 2.4/5 GHz

802.ac

Multi-Gbps 5GHz

802.11ax (Wi-Fi 6)

Multi-Gbps 2.4/5/6 GHz