Networks Europe May-Jun 2018 | Page 24

24 WIRELESS TECHNOLOGY

24 WIRELESS TECHNOLOGY

Table 2 : Category 6 Alien Limited SNR Risk Matrix
CATEGORY 5E
Bundled distance up to 20m
Bundled distance up to 20m - 75m
Bundled distance up to 75m - 100m
VICTIM LENGTH
SPEED
1m - 20m
20m - 75m
75m - 100m
2.5 Gb / s
Negligible
Negligible
Negligible
5 Gb / s
Negligible
Negligible
Low
2.5 Gb / s
N / A
Negligible
Negligible
5 Gb / s
N / A
Low
Medium
2.5 Gb / s
N / A
N / A
Medium Low
5 Gb / s
N / A
N / A
Medium High
Note : Risk refers to risk of bundled cable configurations not supporting an ALSNR min greater than or equal to 28 dB . Information gathered from Table 23 of TIA TSB-5021 .
HIGH MEDIUM HIGH MEDIUM MEDIUM LOW LOW NEGLIGIBLE
Table 3 : Category 6A Alien Limited SNR Risk Matrix
CATEGORY 5E
Bundled distance up to 20m
Bundled distance up to 20m - 75m
Bundled distance up to 75m - 100m
SPEED
2.5 Gb / s 5 Gb / s 2.5 Gb / s 5 Gb / s 2.5 Gb / s 5 Gb / s
VICTIM LENGTH 1m - 20m 20m - 75m 75m - 100m
No Risk
Note : Risk refers to risk of bundled cable configurations not supporting an ALSNR min greater than or equal to 28 dB . Information prepared by Leviton System Verification Lab .
HIGH MEDIUM HIGH MEDIUM MEDIUM LOW LOW NEGLIGIBLE
wireless is increasing at a faster rate than that of wired networks . As the demand for greater wireless performance continues to grow , even 5 Gb / s networks may struggle to keep up . The latest wireless standard , 802.11ac , already allows wireless speed up to 6.93 Gb / s and the next generation wireless standard , 802.11ax , could support more than 10 Gb / s .
Whether upgrades are implemented today or in the future , many enterprise environments already desire 10 Gb / s network speeds to support enough bandwidth to accommodate business and customer demands . Even a Cat 6 infrastructure may only suffice through the next few years , limiting the longterm capability of 2.5GBASE-T and 5GBASE-T .
It ’ s important to consider your anticipated needs and plan accordingly . Some facilities only need a small boost in bandwidth , but networks that intend to use 2.5GBASE-T or 5GBASE-T as a short-term solution will require additional tech refreshes long term . In this instance , a 10GBASE-T upgrade would provide greater overall cost savings and prepare your infrastructure to handle emerging wireless demands .
Preparing for long-term demand TIA TSB-162-A , Telecommunications Cabling Guidelines for Wireless Access Points , recommends installing Cat 6A for horizontal cabling to WAPs . ISO / IEC 11801-2 also recommends using a grid-based zone cabling architecture , with at least two Cat 6A cable runs to each cell in the grid . Two cable runs will ensure backup power to the WAP in PoE applications and prepare the infrastructure for future expansion and data requirements . Also , Cat 6A cabling is able to support more current capacity at the maximum allowable temperature and is needed to minimise temperature increases while supporting devices that require more power .
Making the smart choice It ’ s recommended to deploy Cat 6A cabling for all new enterprise installations . Cat 6A supports greater lengths and provides better AXT suppression at higher frequencies . Cat 6A solutions support high-power PoE up to 100 watts — allowing networks to extend to a wider selection of devices . Cat 6A solutions offer the highest possible transmission line performance characteristics , and complete protection from AXT and external electromagnetic interference .
Businesses that upgrade their enterprise cabling infrastructure today with Cat 6A will not only prepare their workplace to meet increased wireless demand , but will be ready for 2.5 Gb / s , 5G Gb / s , and 10 Gb / applications . However , if a Cat 6A upgrade does not meet your budget , Cat 5e and Cat 6 components can support 2.5 Gb / s and 5 Gb / s speeds within the guidelines and limitations of ISO / IEC 11801-2 . n
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