D-Net`S DAC Breakout Cables Service
● Compatibility Assistance: D-NET offers compatibility services to ensure optical modules are compatible with equipment from leading manufacturers.
● Personalized Services: D-NET provides OEM customization options for its products. Upon request, customers can have colored logo labels tailored to their needs.
● Standard Delivery Period: 3 Days
● Extensive Shipping Solutions: D-NET collaborates with highly reputable courier companies such as SF, FedEx, DHL, UPS, and others to ensure reliable shipping services.
Product Features
● Comply with SFF-8636&QSFP-DD MSA
● Complies with Ethernet IEEE802.3bj/IEEE 802.3cd
● Support serial ID function through EEPROM
● Support hot swap, low crosstalk, low power consumption
● Support the maximum distance of 3 meters
● Operating temperature range: 0℃ to 70℃
● RoHS compliant
● Eight-lane electrical interface transmits up to 28Gbps NRZ or 56Gbps PAM4
Applications
● Telecommunications equipment
-Servers
-Routers
-Switches
-Cellular infrastructure
-Multi-platform service systems
● Data networking equipment
-Servers
-Storage
Outline drawing
|
M.P/N |
C.P/N |
L(mm) |
L1 |
AWG |
|
QDD4QS56P-005301-002 |
TBD |
500±15 |
100±10 |
30 |
|
QDD4QS56P-010301-002 |
TBD |
1000±25 |
200±10
200±10 |
30 |
|
QDD4QS56P-015301-002 |
TBD |
1500±30 |
30 |
|
|
QDD4QS56P-020281-002 |
TBD |
2000±35 |
28 |
|
|
QDD4QS56P-025281-002 |
TBD |
2500±35 |
27 |
|
|
QDD4QS56P-030281-002 |
TBD |
3000±45 |
27 |
Wiring Diagram
Electrical Performance
Signal Integrity：
|
ITEM |
REQUIREMENT |
TEST CONDITION |
|||||||
|
(Differe ntial Impedance) |
Cable Impedance |
105+5/-10Ω |
Rise time of 25ps (20 % - 80 %). |
||||||
|
Paddle Card Impedance |
100±10Ω |
||||||||
|
Cable Termination Impedance |
100±15Ω |
||||||||
|
[Differential (Input/Output)Return loss SDD11/SDD22] |
Return_loss(f)≥ 16.5-2√f 0.05≤f﹤4.1 10.66-14log10(f/ 5.5) 4.1≤f≤19 Where f is the frequency in GHz Return loss(f) is the return loss at frequency f |
10MHz≤f ≤19GHz |
|||||||
|
[Differential to common-mode (Input/Output)Return loss SCD11/SCD22] |
Return_loss(f)≥ 22-(20/25.78)f 0.01≤f﹤12.89 15-(6/25.78)f 12.89≤f≤19 Where f is the frequency in GHz Return_loss(f) is the Differential to common-mode return loss at frequency f |
10MHz≤f ≤19GHz |
|||||||
|
[Common-mode to Common-mode (Input/Output)Return loss SCC11/SCC22] |
Return_loss(f)≥2dB 0.2≤f≤19 Where f is the frequency in GHz Return_loss(f) is the common-mode to common-mode return loss at frequency f |
10MHz≤f ≤19GHz |
|||||||
|
[Differential Insertion Loss (SDD21 Max.)] |
(Differential InsertionLoss Max. For TPa to TPb Excluding Test fixture ) |
10MHz≤f ≤19GHz |
|||||||
|
F AWG |
1.25GHz |
2.5GHz |
5.0GHz |
7.0GHz |
10Ghz |
12.89Ghz |
|||
|
30(1m) Max. |
4.5dB |
5.4dB |
6.3dB |
7.5dB |
8.5dB |
10.5dB |
|||
|
30/28( 3m)Ma x. |
7.5dB |
9.5dB |
12.2dB |
14.8dB |
18.0dB |
21.5dB |
|||
|
26(3m) Max. |
5.7dB |
7.2dB |
9.9 dB |
11.9dB |
14.1dB |
16.5dB |
||
|
26/25( 5m)Ma x. |
7.8dB |
10.0dB |
13.5dB |
16.0dB |
19.0dB |
22.0dB |
||
|
Differential to common-mode Conversion Loss-Differential Insertion Loss(SCD21-SDD21) |
Conversion _loss(f) – IL(f)≥10 0.01≤f﹤ 12.89 27-(29/22)f 12.89 ≤ f ﹤ Where f is the frequency in GHz Conversion_loss(f ) is the cable assembly differential to common-mode conversion loss IL(f) is the cable assembly insertion loss |
10MHz≤f ≤19GHz |
||||||
|
[MDNEXT(multiple disturber near-end crosstalk)] |
≥26dB @12.89GHz |
10MHz≤f ≤19GHz |
||||||
Other Electrical Performance：
|
(ITEM) |
(REQUIREMENT) |
(TEST CONDITON) |
|
[Low Level Contact Resistance] |
70milliohms Max. From initial. |
EIA-364-23:Apply a maximum voltage of 20mV And a current of 100 mA. |
|
Insulation Resistance |
10Mohm(Min.) |
EIA364-21:AC 300V 1minute |
|
[Dielectric Withstanding Voltage] |
NO disruptive discharge. |
EIA-364-20:Apply a voltage of 300 VDC for 1minute between adjacent terminals And between adjacent terminals and ground. |
Environment Performance
|
(ITEM) |
(REQUIREMENT) |
(TEST CONDITON) |
|
[Operating Temp. Range] |
-20°C to +75°C |
Cable operating temperature range. |
|
[Storage Temp. Range (in packed condition)] |
-40°C to +80°C |
Cable storage temperature range in packed condition. |
|
[Thermal Cycling Non-Powered] |
No evidence of physical damage |
EIA-364-32D, Method A, -25 to 90C, 100 cycles, 15 min. dwells |
|
[Salt Spraying] |
48 hours salt spraying after shell corrosive area less than 5％. |
EIA-364-26 |
|
Mixed Flowing Gas |
Pass electrical tests per 3.1 after stressing. (For connector only) |
EIA-364-35 Class II,14 days. |
|
Temp. Life |
No evidence of physical damage |
EIA-364-17C w/ RH, Damp heat 90℃ at 85% RH for 500 hours then return to ambient |
|
Cable Cold Bend |
4H,No evidence of physical damage |
Condition: -20℃±2℃, mandrel diameter is 6 times the cable diameter. |
Mechanical and Physical Characteristics
|
(ITEM) |
(REQUIREMENT) |
(TEST CONDITON) |
|
Vibration |
Pass electrical tests per 3.1 after stressing. |
Clamp & vibrate per EIA-364-28E, TC-VII, test condition letter – D, 15 minutes in X, Y & Z axis. |
|
Cable Flex |
No evidence of physical damage |
Flex cable 180° for 20 cycles (±90° from nominal position) at 12 cycles per minute with a 1.0kg load applied to the cable jacket. Flex in the boot area 90º in each direction from vertical. Per EIA-364-41C |
|
Cable Plug Retention in Cage |
90N Min. No evidence of physical damage |
Force to be applied axially with no damage to cage. Per SFF 8661 Rev 2.1 Pull on cable jacket approximately 1 ft behind cable plug. No functional damage to cable plug below 90N. Per SFF-8432 Rev 5.0 |
|
Cable Retention in Plug |
90N Min. No evidence of physical damage |
Cable plug is fixtured with the bulk cable hanging vertically. A 90N axial load is applied (gradually) to the cable jacket and held for 1 minute. Per EIA-364-38B |
|
Mechanical Shock |
Pass electrical tests Per 3.1 after stressing. |
Clamp and shock per EIA-364-27B, TC-G,3 times in 6 directions, 100g, 6ms. |
|
Cable Plug Insertion |
40N Max.(QSFP56) 90N Max.(QSFP DD) |
Per SFF8661 Rev 2.1 Per QSFP-DD Hardware Rev 5.0 |
|
Cable plug Extraction |
30N Max. (QSFP56) 50N Max.(QSFP DD) |
Place axial load on de-latch to de-latch plug.Per SFF8661 Rev 2.1 Measure without the aid of any cage kick-out springs. Place axial load on de-latch to de-latch plug. Per SFF-8432 Rev 5.0 |
|
Durability |
50 cycles,No evidence of physical damage |
EIA-364-09, perform plug &unplug cycles:Plug and receptacle mate rate: 250times/hour. 50times for QSFP28/SFP28 module (CONNECTOR TO PCB) |
Product number explain
FAQ
1. What is the purpose of the QSFP-DD and QSFP56 connectors?
A: The QSFP-DD connector on one end of the cable supports 400G transmission, while the four QSFP56 connectors on the other end enable breakout to four 100G channels. Both connectors are hot-swappable and compliant with relevant MSA standards.
2. What is the maximum data rate supported by this cable?
A: The maximum data rate supported by this cable is 400Gbps, achieved through PAM4 modulation.
3. What is the material and gauge of the copper used in this cable?
A: The cable uses oxygen-free copper with silver plating for conductivity, and it typically comes in AWG gauges ranging from 26 to 30. The specific gauge will depend on the length and intended application.
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