100G QSFP28 to 4x25G SFP28 Direct Attach Passive Cable (GZQ10X-4-DAC-x)

GZQ10X-4-DAC-x

Product Description：

100G QSFP28 passive copper direct-attach cables are suitable for very short distances and offer a highly cost-effective way to establish a 100-Gigabit link between QSFP28 ports of QSFP28 switches within racks and across adjacent racks.

These cables are used for 100GbE and Infniband standards, to maximize performance. 100G QSFP28 are designed to meet emerging data center and high performance computing application needs for a high density cabling interconnect system capable of delivering an aggregate data bandwidth of 40Gb/s.

This interconnect system is fully compliant with existing industry standard specifications such as the QSFP MSA and IBTA (InfiniBand Trade Association).

The 100G QSFP28 cables support the bandwidth transmission requirements as defined by IEEE 802.3ba (100Gb/s) and Infiniband QDR ( 4x25 Gb/s per channel) specifications.

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Features and Benefits Parameter Product Structure Application Topology

Features:

v Compliant SFF-8636、SFF-8402

v Compliant Sonet IEEE802.3bj

v Operating case temperature: -40 to 85°C

v All-metal housing for superior EMI performance

v Precision process control for minimization of pair-to-pair skew

v AC coupling of PECL signals

v EEPROM for cable signature & system communications

v 30 AWG to 26 AWG cable sizes available

v RoHS compliant

Parame ter	Minimum	Maximum	Units
Supply voltage	-0.3	3.6	V
Data input voltage	-0.3	3.6	V
Control input voltage	-0.3	3.6	V

Recommended Operating Conditions:

Parameter	Symbol	Min.	Typical	Max.	Unit
Caseoperating Temperature	T_C	0		+70	°C
Supply Voltage	VCCT, R	+3.13	3.3	+3.47	V
Power Dissipation	PD			0.1	W
Operating relative humidity		5	---	85	%

Electrical Specifications

Parame ter	Minimum	Typical	Maximum	Units
Characteristic impedance	90	100	110	Ω
Time delay	---	---	4.5	ns/m
Time delay skew (in the same pair)	---	---	10	ps
Time delay skew (pair to pair)	---	---	50	ps

High Speed Characteristics

Parame ter	Symbol	Min	Typic	Max	Unit	Note
Differential Impedance	RIN,P-P	90	100	110	Ώ
Insertion loss	SDD21	8		22.48	dB	At 12.8906 GHz
Differential Return Loss	SDD11 SDD22	12.45		See 1	dB	At 0.05 to 4.1 GHz
Differential Return Loss	SDD11 SDD22	3.12		See 2	dB	At 4.1 to 19 GHz
Common-mode to common-mode output return loss	SCC11 SCC22	2			dB	At 0.2 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	SCD11SCD22	12		See 3	dB	At 0.01 to 12.89
Differential to common-mode return loss	SCD11SCD22	10.58		See 4	dB	At 12.89 to 19 GHz
Differential to common Mode Conversion Loss	SCD21-IL	10			dB	At 0.01 to 12.89
				See 5		At 12.89 to 15.7
		6.3				At 15.7 to 19 GHz
Channel Operating Margin	COM	3			dB

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