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100G QSFP28 TO 4xSFP28 Active Optical Cables specification

100G QSFP28 to 4xSFP28 Compatible Active Optical Breakout Cables

100G QSFP28 to 4xSFP28 Compatible Active Optical Breakout Cables, fully tested compatible for over 100 vendors.

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Description

100G QSFP28 to 4xSFP28 active optical cable is a high-performance, low-power, long-distance interconnection solution that supports100G.

100G QSFP to 4xSFP28 is a combination of 4 full-duplex channels, each of which can transmit data at a rate of up to 25.78125GB/s, providing an aggregation rate of 100GB/s.

100G QSFP to 4xSFP28 active optical cable (AOC) can be used as an alternative to QSFP28 passive and active copper cables.

Features

Support 4x25GBASE-SR application
Compliant to QSFP28 MSA SFF-8636 and SFP28 MSA SFF-8431 and SF-8472
Multi rate of up to 25.78125Gbps per lane
+3.3V single power supply
Low power consumption
UL certification cables (optional)
Operating case temp Commercial: 0°C to +70 °C
RoHS compliant

Applictions

100GBASE-SR4 at 25.78125Gbps per lane
InfiniBand QDR, EDR
Other optical link

Cable Length

Parameter	Value	Units
Diameter	3	mm
Minimum bend radius	30	mm
Length tolerance	Length < 1 m: +5 /-0	cm
	1 m ≤length ≤ 4.5 m: +15 / -0	cm
	5 m ≤length ≤ 14.5 m: +30 / -0	cm
	Length≥15.0 m +2% / -0	m
Cable color	Orange(OM2),Aqua(OM3),Megenta(OM4)

Breakout Cable Nominal Length

Total Length X (Unit: m)	Breakout Point Measured from QSFP LQ (Unit: m)	Breakout Point Measured from SFP LS(Unit: m)
1	0.3	0.7
2	0.6	1.4
3	1	2
5	2	3
7	4	3
10	7	3
15	12	3
20	17	3
25	22	3
30	27	3
40	37	3
50	47	3

Pin Function Definitions

Pin	Symbol	Name/Description	Notes
1	VEET	Module Transmitter Ground	1
2	TX_FAULT	Module Transmitter Fault	2
3	TX_DISABLE	Transmitter Disable; Turns off transmitter laser output	3
4	SDA	2-Wire Serial Interface Data Line (MOD-DEF2)
5	SCL	2-Wire Serial Interface Clock (MOD-DEF1)
6	MOD_ABS	Module Absent, connected to V_EET or V_EER in the module	2
7	RS0	Rate Select 0, optionally controls SFP+ module receiver
8	RX_LOS	Receiver Loss of Signal Indication (In FC designated as Rx_LOS and in Ethernet designated as NOT Signal Detect)	2
9	RS1	Rate Select 1, optionally controls SFP+ module transmitter
10	V_EER	Module Receiver Ground	1
11	V_EER	Module Receiver Ground	1
12	RD-	Receiver Inverted Data Output
13	RD+	Receiver Non-Inverted Data Output
14	V_EER	Module Receiver Ground	1
15	V_CCR	Module Receiver 3.3 V Supply
16	V_CCT	Module Transmitter 3.3 V Supply
17	V_EET	Module Transmitter Ground	1
18	TD+	Transmitter Non-Inverted Data Input
19	TD-	Transmitter Inverted Data Input
20	V_EET	Module Transmitter Ground	1

Note:

The module ground pins are isolated from the module
The pins shall be pulled up with 4.7K-10Kohms to a voltage between 3.14V and 3.46V on host
The pin is pulled up to VCCT with a 4.7K-10KΩ resistor in the

Recommended Operating Conditions

Parameter	Symbol	Min.	Typical	Max.	Unit	Notes
Operating Case Temperature	T_C	0	-	+70	°C
Power Supply Voltage	Vcc	3.14	3.3	3.47	V
Power Dissipation per QSFP28	Pd	-	-	2.5	W
Power Dissipation per SFP28	Pd	-	-	1.0	W	1
Bit Rate Bit Rate per Lane	BR	10.3125	25.78125	-	Gbps	Per lane

Note: 1 Per terminal

Absolute Maximum Ratings

Parameter	Symbol	Min.	Typical	Max.	Unit	Notes
Supply Voltage	Vcc₃	-0.5	-	+3.6	V
Storage Temperature	T_s	-5	-	+75	°C
Operating Humidity	RH	+5	-	+85	%	1

Note: 1 No condensation

Electrical Characteristics

Electrical Characteristics for QSFP28

Parameter		Symbol	Min.	Typ.	Max.	Units	Notes
Transmitter
Differential Data Input Swing		Vout	200	-	1000	mV
Input Differential Impedance		Z_D	90	100	110	Ω
ModSelL	Module Select	VOL	V_EE-0.3	-	0.4	V
ModSelL	Module Unselect	VOH	2.0	-	V_CC+0.3	V
LPMode	Low Power Mode	VIL	V_EE-0.3	-	0.8	V
LPMode	Normal Operation	VIH	2.0	-	V_CC+0.3	V
ResetL	Reset	VIL	V_EE-0.3	-	0.8	V
ResetL	Normal Operation	VIH	2.0	-	V_CC+0.3	V
Receiver
Differential Data Output Swing		Vin,P-P	200	-	1000	mV_PP
Output Differential Impedance		Z_D	90	100	110	Ω
ModPrsL	Normal Operation	VOL	V_EE-0.3	-	0.4	V
IntL	Interrupt	VOL	V_EE-0.3	-	0.4	V
IntL	Normal Operation	VoH	2.0	-	V_CC+0.3	V
Bit Error Rate		BER			E-12		1

Electrical Characteristics for SFP28

Parameter		Symbol		Min.	Typ.	Max.	Units		Notes
Electrical Transmitter Characteristics
Differential Data Input Swing		Vin,P-P		200	-	1000		mV_PP
Input Differential Impedance		ZIN		90	100	110		Ω
Tx_Fault	Normal Operation	VOL		V_EE-0.3	-	0.4		V
	Transmitter Fault	VOH		2.0	-	V_CC+0.3		V
Tx_Disable	Normal Operation	VIL		V_EE-0.3	-	0.8		V
	Laser Disable	VIH		2.0	-	V_CC+0.3		V
Electrical Receiver Characteristics
Differential Date Output			Vout	200	-	1000	mV
Output Differential Impedance			Z_D	90	100	110	Ω
Rx_LOS	Normal Operation		VOL	V_EE-0.3	-	0.4	V
	Lose Signal		VoH	2.0	-	V_CC+0.3	V
Bit Error Rate			BER	-	-	E-12	-