Business Solutions

Matrix6 10G copper cabling solution

Since the approval of 10G 802.6ae standard for fiber optic cable, in 2002, a working committee for 10GBASE T

was set for studying the feasibility of running 10Gbps over 100m drive distance. This is a horizontal cabling

system advocated by TI568-B and ISO/IEC 11801 for Cat 6 E class or better system in support of future gigabit

applications. Each cable pairs are able to offer bidirectional transmission rate of 2.5Gps, thus making up of

10Gpbs for 4 pairs At the very beginning, IEEE 802.3an working committee followed the old PAM encoding

mechanism adopted in 100Base-T for the encoding method of the physical layer for 10G Base-T. PAM5 takes 5

different signal balancing in replacement of the 2 digit encoding methods, thus making the best use of the

bandwidth. Based on PAM5 in 10GBase-T, the required bandwidth is 625 Mhz. In June 2004, TIA revised the

testing frequency from 625 Mhz to 500 Mhz, and to increase immunation and reducing the requirement for laser

source, the encoding method was changed to PAM8, supporting 833 Mbaude data rates in series and 400 Mhz

bandwidth. The bandwidth for 10G system is revised to 500 Mhz and the Shannon capacity required for LDPC

encoding is reduced to 15.9Gbps. To support the IP application, in 2005 Caledonian launched out Matrix6E

cabling system. Matrix 6E is a system design based on Cat6/E class, in compliant with IEEE 802.3an standard.

Addison unshielded 10G cable can run 55-100 meters for 10GBase-T. As compared to shielded cable, the

installation of UTP is much easer and the cost is much lower. However, at higher frequency, UTP cable will be

limited by its technology for insertion loss and ANEXT performance. In 10G application, where frequency is very

high, ANEXT is the most concern. ANEXT is the interference between one cable pairs and the adjacent pairs in

another cable bundle. ANEXT greatly interferes the transmission and data transmission. Unlike NEXT, ANEXT

cannot be eliminated by other active equipment. Currently, ANEXT is measured by testing the worst value s for a

4 pairs cable under 6 in 1 bundles environment At present, it is still not possible to carry out field measurement

for ANEXT in either permanent link or channel testing. But Caledonian 10G cables and components has already

been designed in consideration of the ANEXT margin. The NEXT of each pairs within a cable will changes

according to different data rates, signal level and the twisting distance of each pair. In this regard, Addison

redesign the cable structure and change the twisting distance using the separator, in order to reduce the

interference between the different pairs, thus eliminating the ANEXT to a significant extent. The Addison Cat 6e

UTP cables can offer Shannon capacity of over 16Gbps. Caledonian 10G shielded system is based on Cat 7/F

design, which can run video, voice and data in each individual pairs. It can support video up to 870 Mhz, and can

transmit both voice and data inside the same cable. The transmission media for a shielded system is SFTP cable,

which contains an overall screen with individually shielded pairs. This cable type can effectively screen out the

electromagnetic interference and prevents the cable from emitting electromagnetic signals. It can also highly

reduce the coupling attenuation in the adjacent cable pairs, thusproviding high bandwidth and increasing

balanced transmission ability The aluminium screen can block out the electromagnetic signal and also prevent

the cable from emitting signal to outside. And thus will not emit any signal to affect other cables. The drain wire

does have the function of signal reflection, absorption and separation ability. It can isolate the copper

conductors from the outside environment. Each cable inside the duct can run 10Gbps transmission speed

without affecting each other. Generally, in a shielded system coupling attenuation will be used to measure the

EMC ability of a cable. The NEXT values of a shielded 10G system is usually 20dB higher than unshielded 10G

system. Matix 6A system provides a 4 connector channel solutions, using impedance matching data jacks to

work in harmony with patch panels, significantly increasing the margin for both the channel and permanent link

testing. The centered design help improve the NEXT performance of the product Shielded system provides much

larger bandwidth than unshielded system. In general, in gigabit Ethernet, at least Shannon capacity of 15.9

Gbps is required for the transmission ability. Shannon capacity is basically the ability of able to carry data current

which goes down as noise increases. Alien crosstalk is this type of noise. And for unshielded 10G system, only

around 17-20 Gbps can be achieved for Shannon capacity and therefore the margin is not too great. But the

Shannon capacity for a shielded system can achieve around 35 Gbps which is much higher than that for

unshielded system Caledonian can offer 10G cable for the gigabit applications. There are two options

forselection One is to use Cat 6A10G cable which can run 10Gbps at 500 Mhz from 55 to 100m, depending on

different cable design for the UTP cable. For the UTP cable type, comfortable drive distance will be 55m though

higher driver distance can usually be achieved with the special design of the cable. Another is to use Cat 7/F

class STP cable which can run 10Gbps over a full 100metres. This STP cable can even be suitable for future 650-

1000Mhz high bandwidth application. Matrix 6A10G far exceeds the requirement TIA/EIA and ISO 11801,

providing extra margin, to ensure sure pass in any handheld tester during the field site verification.. The typical

NEXT value of Matrix 6A10G unshielded is around 3 dB whereas the worst value exceeds 1 dB. The typical ANEXT

value of Matrix 6A unshielded is around 2 dB whereas the worst value exceeds 0 dB. The typical NEXT value of

Matrix 6A10G shielded is around 3 dB whereas the worst values exceeds 1 dB. The typical ANEXT value of Matrix

6A10G shielded is around 8 dB whereas the worst value exceeds 6 dB Matrix 6A10G system can work under 500

Mhz extended frequency, through the special design in support of horizontal cabling, the testing frequency is up

to 500 Mhz in support of the future 10G applications. Every components in Matrix 6E 10G features special design

in order to guarantee significant margin for offering a comfortable buffer in any harsh installation environment

MATRIX6A10G Shielded System

Product Model Product Description
AD-PP-24-C6A(10G)FS-A/B Matrix 6A10G 24 Port Shielded Patch Panel
AD-KM-C6A(10G)FS-A/B-180 Matrix 6A10G180 C Shielded Data Jack
AD-BC-CAT6A(10G)ESTP4PCM24 Cat 6A10G Individually Shielded STP 4 Pairs PVC Cable
AD-BC-CAT6A(10G)SFTP4PCM24 Cat 6A10G Individually Shielded + Overall Copper Braided SFTP 4 Pairs PVC Cable
AD-CAT6A(10G)SFTP4PM001CM27A-XX Cat 6A10G1m STP extended frequency patch cord
AD-CAT6A(10G)SFTP4PM003CM27A-XX Cat 6A10G3m STP extended frequency patch cord
AD-CAT6A(10G)SFTP4PM005CM27A-XX Cat 6A10G5m STP extended frequency patch cord

Worst Values and Typical Values for Matrix 6A10G Unshielded Channel ( 1-500Mhz )


Worst Margin Typical Margin
( NEXT ) 1db 3db
( PSNEXT ) 2db 5db
( A NEXT ) 0db 2db
( PSANEXT ) 0db 3db
( A ELFEXT ) 0db 2db
( PSELFEXT ) 0db 3db
( ELFEXT ) 6db 8db
( PSELFEXT ) 7db 10db
( RL ) 0db 2db

Worst Values and Typical Values for Matrix 6A10G Shielded Channel ( 1-500Mhz )


Worst Margin Typical Magin
( NEXT ) 1db 3db
( PSNEXT ) 2db 5db
( A NEXT ) 6db 8db
( PSANEXT ) 8db 10db
( A ELFEXT ) 6db 8db
( PSELFEXT ) 8db 10db
( ELFEXT ) 8db 10db
( PSELFEXT ) 8db 10db
( RL ) 0db 2db