High-precision, High-speed transmission cable
InfiniBand TM CABLES, ASSEMBLIES
Application
A cable compatible with the InfiniBand TM standard , a high-speed data transfer standard between servers and storage .
Features
- Stable propagation delay time and low skew are realized by our original highly foamed polyethylene extrusion technology.
- Newly developed low-loss high-foaming polyethylene is used for the insulator material, and MET/PET tape is used for each pair of shields to improve attenuation characteristics in the high-frequency band.
- Certified for vertical tray test CL2 (UL).
Structure and performance
| Item | 4X(#24) | 4X(#26) | 4X(#28) | |
|---|---|---|---|---|
| Conductor | Size(AWG) | 24 | 26 | 28 |
| Configuration (pcs/mm) | 1/0.511 | 1/0.404 | 1/0.32 | |
| Material | AGA | |||
| Insulator | Material | CCE | ||
| Sshield pair | Material | AGA | ||
| MET/PET | ||||
| Whole shield | Material | TA | ||
| Envelope | Material | Lead-free PVC | ||
| Outer diameter (mm) | 9.78 | 8.13 | 7.52 | |
| Standard capacitance | 1kHz(pF/m) | 42 | ||
| Impedance D-TDR(Ω) | 100±5 | |||
| Typical Propagation Delay Time TDR(ns/m) | 4.25 | |||
| Intra-pair skew TDT(pF/m) | less than 10 | |||
| Pair-to-pair skew TDT(pF/m) | 53.3 or less | |||
| Typical attenuation 1.25GHz(dB/m) | 0.88 | 1.00 | 1.25 | |
| Near-end crosstalk 1.25GHz(dB/m) | -55 | |||
AGA: Silver-plated annealed copper wire, TA: Tin-plated annealed copper wire, CCE: Polyethylene foam, MET/PET: Metal-bound polyester tape, PET: Polyester tape
* InfiniBand TM is a registered trademark of InfiniBand TM Trade Association.
* InfiniBand TM is a registered trademark of InfiniBand TM Trade Association.
Eye pattern waveform in InfiniBand TM assembly
4X(#24) Assembled
measurement length :5m
4X(#26) Assembled
measurement length :4m
4X(#28) Assembled
measurement length :3m
Measurement condition
| Input voltage (differential) |
1.0Vp-p |
| frequency | 5.0Gbps |
| waveform mobile | CJTPAT |
| Waveform sweep count |
10,000 times |
| eye mask height | 196mV |
| eye mask wide | 150ps (Jitter standard: 50ps or less) |