產品特徵:
Twisted Pairs QED Reference Ethernet 的兩絞設計可以大大降低通過電場或磁場耦合而引起的雜訊（noise）影響。兩條導線中，每條導線感應的電流幾乎相等。可減少傳送中訊號的衰減、減少串擾（crosstalk）並改善了對外部電磁干擾的抑制能力。
Insertion Loss 插入損耗（insertion loss）是指與引入線路的信號相比，線路遠端的信號強度損失。這種損耗是由於銅導體的電阻抗、通過線材絕緣層的能量損耗和連接器引起的阻抗造成的。為了保留最多的數據，Reference Ethernet 使用了鐵氧體浸漬的護套，並且使用鋁箔包裹，大大減低外部造成的干擾。使到Reference Ethernet 輕鬆超過了 CAT 8 插入損耗標準，保證最多的信號強度。
Attenuation-to-Crosstalk Ratio 為了將信號噪聲和串擾保持在絕對最低水平，Reference Ethernet 使用了 99.999% 的無氧銅雙絞線，令當中的衰減對串音比，比起 CAT 8 標準的要求高出 25 dB，反映出Reference Ethernet 擁有更大量可用的頻寬。
TDR (Time Domain Reflectometer) 任何不匹配的阻抗都會導致信號來回反射，造成回波損耗（return loss）。得益於Reference Ethernet 其精密的 Telegärtner 插頭和 360 度屏蔽壓鑄鋅主體，能夠有效將 90% 以上的信號傳輸，大大減低回波損耗造成的失真。
Key features at a glance
- Specifically designed for high-resolution audio up to 32 bit/384 kHz or DSD512 quality
- Complies with Class I Category 8.1 standard
- Supports 40G Ethernet
- Ferrite insulation, low-loss dielectric and gold-plated Telegärtner plugs combine to deliver
- 99.999% OFC, 24 AWG conductors with customised twist rates for lower inter-pair crosstalk
- Arrives in stylish White Pearl finish
Specified to perform
An uncompromised specification and state-of-the-art engineering results in a cable with a maximum data rate of 40 Gb/s. This is well in excess of what is required to handle even the most demanding data streams, and means Reference Ethernet is easily able to cope with the highest of today’s high-resolution digital audio files and is future-proofed to handle whatever comes next.
Minimising crosstalk and insertion loss
In order to keep signal noise and crosstalk to an absolute minimum, Reference Ethernet uses 99.999 % oxygen-free copper twisted-pairs - with a dissimilar twist rate for each pair - to maximise noise-rejection characteristics. For minimal ‘insertion loss’ - which is the reduction of signal strength at the end of the cable compared to that at the start - Reference Ethernet uses an aluminium mylar wrap, within a foil wrap, within a ferrite-impregnated jacket. As a result, the cable comfortably exceeds the CAT 8 insertion loss standard. This over-specified arrangement also means Reference Ethernet easily outperforms the CAT 8 standard for ‘attenuation-to-crosstalk ratio’ which is an indicator of the margin by which it avoids introducing any errors into the data stream.
Reducing return loss
Reference Ethernet also performs way beyond the CAT 8 requirements where ‘return loss’ is concerned. Any impedance mismatch between the cable and the equipment it’s connected to can cause the signal to be reflected back and forth. Thanks to its precision-engineered, gold-plated Telegärtner plugs with 360-degree shielded die-cast zinc bodies, reflections are minimised and all of the signal is delivered to the load. The cable is finished in a stylish pearl white PVC jacket to compliment any hi-fi set-up.
規格:
單位: 1條（1 Piece）
電纜外徑: 9 mm
插頭: Telegärtner Profinet CAT 8
建設: F / FTP
導體尺寸: 24 AWG
阻抗: 100 Ω
跳線類別: I 類 CAT 8.1
最大bit rate: 40 Gb/s
長度: 1m、2m
