UTP Cable Types

Question 1

Phone cable

Answer 1

RJ11
A phone cable is used to connect a PC to a phone jack in a wall outlet to establish a dial-up internet connection. It is also used to connect a DSL modem to a telephone network. It has two pairs of twisted cable (a total of 4 wires).

Question 2

Cat 5

Answer 2

RJ45
Cat 5 supports 100-Mb Ethernet (100BASE-TX) and ATM networking. Cat 5 specifications also support gigabit (1000 Mb) Ethernet.

Question 3

Cat 5e

Answer 3

RJ45
Cat 5e is similar to Cat 5 but provides better EMI protection. It supports 100-Mb (100BASE-T) and gigabit (1000BASE-T) Ethernet.

Question 4

Cat 6

Answer 4

RJ45
Cat 6 supports 10-Gbps Ethernet (10GBASE-T) and high-bandwidth broadband communications. In most cases, Cat 6 cables include a solid plastic core that keeps the twisted pairs separate and prevents the cable from being bent too tightly.

Question 5

Cat 6a

Answer 5

RJ45
Cat 6a is designed to provide better protection against EMI and crosstalk than Cat 6 cabling. Cat 6a provides better performance than Cat 6, especially when used with 10-Gbps Ethernet (10GBASE-T).

Question 6

Cat 7

Answer 6

GG45
TERA
The Cat 7 standard was ratified years before the Cat 6a standard to support 10-Gbps Ethernet (10GBASE-T). It requires shielding on each twisted pair and the cable as a whole. It also specifies the GG45 or TERA connectors.

Question 7

Cat 8

Answer 7

RJ45
This is the fastest Ethernet cable with data transfer speed of up to 40 Gb and bandwidth support of up to 2 GHz. Cat8 uses shielded foiled twisted pair construction that includes shielding around each pair of wires within the cable to reduce near-end crosstalk.

It also uses braiding around the group of pairs to minimize electromagnetic interference in crowded network installations.

Question 8

RJ11

Answer 8

The RJ11 connector:
Has four connectors.
Supports up to two pairs of wires.
Uses a locking tab to keep the connector secure in an outlet.
Is used primarily for telephone wiring.

Question 9

RJ45

Answer 9

The RJ45 connector:
Has eight connectors.
Supports up to four pairs of wires.
Uses a locking tab to keep the connector secure in an outlet.
Is used for Ethernet and some Token Ring connections.
The RJ48c connector type is almost identical to RJ45. It uses the same connector as an RJ45, but it is wired differently. It is used for specific WAN connections, such as a T1 line.

Question 10

Rj48c

Answer 10

The RJ48c connector type is almost identical to RJ45. It uses the same connector as an RJ45, but it is wired differently. It is used for specific WAN connections, such as a T1 line.

Question 11

GG45

Answer 11

The GG45 connector:
Has eight connectors.
Supports four pairs of wires.
Is backwards compatible with RJ45.
Has four additional conductors in the corners of the connector that duplicate and replace the four inner pins on the RJ45.

Question 12

TERA

Answer 12

The TERA connector:
Has eight connectors.
Supports four pairs of wires.
Is incompatible with RJ45 and GG45.
Does not require special tools to install.