Specializing in R&D & Production in xPON & Optical Communication & CATV & Ethernet Networking
HANGZHOU DAYTAI NETWORK TECHNOLOGIES CO.,LTD.
HANGZHOU DAYTAI NETWORK
TECHNOLOGIES CO.,LTD.
DAYTAI-HANGZHOU-CHINA
Tel:
+86-571-8735 7725-Español
+86-571-8735 7726-English
+86-571-8735 7727-English
+86-571-8735 7728-English
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Mr.Amani
Skype:daytai-amani
Mobile:+86-137 7755 3827
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E-mail:info@daytai.com
Web Site:WWW.DAYTAI.COM
400G QSFP-DD Direct Attach Cable,A low-cost solution for
short-distance connection within and between data center cabinets,
400G QSFP-DD DAC Direct Attach Cable (DT-DAC-400G-QSFP-DD)
Inquire
400G QSFP-DD Direct Attach Cable,A low-cost solution for short-distance connection within and between data center cabinets,
400G QSFP-DD DAC Direct Attach Cable (DT-DAC-400G-QSFP-DD),DAYTAI QSFP-DD passive copper cable assembly feature eight
differential copper pairs,providing four data transmission channels at speeds up to 56Gbps(PAM4) per channel,and meets 400G
Ethernet and InfiniBand Enhanced Data Rate(EDR) requirements.Available in a broad rang of wire gages-from 28AWG through
30AWG-this 400G copper cable assembly features low insertion loss and low cross talk. QSFP-DD uses PAM4 signals for transmission,
which doubles the rate. However, there are more stringent requirements for cable insertion loss. For detailed requirements, please see
High Speed Characteristics.Compatible With the Brand:Cisco,Juniper,Brocade,Arista,Mellanox,HPE,Dell,Dell Force10,Huawei...Etc is
Optional,Length: 0.5m,1m,1.5m,2m, 3m...is Optional.
★Features
⊙Data Center networks.
⊙Storage area networks.
⊙Switches, servers and routers.
⊙High performance computing.
⊙Wire AWG: AWG30, AWG24.
⊙Telecommunication and wireless infrastructure.
⊙Compatible with IEEE 802.3bj and IEEE 802.3cd.
⊙Customized cable braid termination limits EMI radiation.
⊙Straight and break out assembly configurations available.
⊙Optimized construction to minimize insertion loss and cross talk.
Item | Specification | |||||
Parameter | Symbol | Min | Typical | Max. | Unit | Note |
Differential Impedance | TDR | 90 | 100 | 110 | Ω | |
Insertion Loss | SDD21 | -16.06 | dB | At 13.28GHz | ||
Differential Return Loss | SDD11 SDD22 | See 1 | dB | At 0.05 to 4.1 GHz | ||
See 2 | At 4.1 to 19 GHz | |||||
Common-mode to common-mode output return loss | SCC11 SCC22 | -2 | dB | At 0.2 to 19 GHz | ||
Differential to common-mode return loss | SCD11 | See 3 | dB | At 0.01 to 12.89 GHz | ||
SCD22 | See 4 | At 12.89 to 19 GHz | ||||
Differential to common Mode Conversion Loss | SCD21-IL | -10 | dB | At 0.01 to 12.89 GHz | ||
See 5 | At 12.89 to 15.7 GH | |||||
-6.3 | At 15.7 to 19 GHz | |||||
Notes:
1.Reflection Coefficient given by equation SDD11(dB) < -16.5 + 2 × SQRT(f ), with f in GHz
2.Reflection Coefficient given by equation SDD11(dB) < -10.66 + 14 × log10(f/5.5), with f in GHz
3.Reflection Coefficient given by equation SCD11(dB) < -22 + (20/25.78)*f, with f in GHz
4.Reflection Coefficient given by equation SCD11(dB) < -15 + (6/25.78)*f, with f in GHz
5.Reflection Coefficient given by equation SCD21(dB) < -27 + (29/22)*f, with f in GHz
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