Name: 100G QSFP28 LR4 CWDM 2KM LC SMF
SKU: 7211030

Zion Code and Description

Zion Code		Zion Description
7211030		100G QSFP28 LR4 CWDM 2KM LC SMF Fiber Optical Transceiver

Applications

Data Center and LAN

Description

100G QSFP28 LR4 is designed to operate over single-mode fiber system using 4X25 CWDM channel in 1310 band and links up to 2km. The module converts 4 inputs channel of 25Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 100Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 100Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data.

The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. Single-mode fiber (SMF) is applied in this module. This product converts the 4-channel 25Gb/s electrical input data into CWDM optical signals (light), by a 4-wavelength Distributed Feedback Laser (DFB) array. The 4 wavelengths are multiplexed into a single 100Gb/s data, propagating out of the transmitter module via the SMF. The receiver module accepts the 100Gb/s optical signals input, and de-multiplexes it into 4 CWDM 25Gb/s channels. Each wavelength light is collected by a discrete photo diode, and then outputted as electric data after amplified by a TIA.

The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA) and compliant to IEEE 802.3ba.

Main product parameters

Form Factor	QSFP28	Max Data Rate	100 Gbps
Wavelength	1310nm	Center Wavelength	1271,1291,1311,1331nm
Max Cable Distance	2KM	Connector type	LC
Fiber cable Type	SMF	Vendor Name	ZION COMMUNICATION
Transimitter Type	DFB CWDM	Receiver Type	PIN
Transmit Power	– 6.5 to +2.5 dBm	Max Receiver sensitivity	– 10.1 dBm
Overload Power	2.5 dBm	Extinction Ratio	3.5 dB
DDM	Supported	Operating Temp.	0°C to 70°C (32°F to 158°F)

Zion Communication’s Hot 100G transceiver types

Zion Code		Zion Description
7211010		100G QSFP28 SR4 850nm 100M MPO MMF Fiber Optic Transceiver
7211020		100G QSFP28 PSM4 1310nm 2KM MPO SMF Fiber Optic Transceiver
7211030		100G QSFP28 LR4 CWDM 2KM LC SMF Fiber Optic Transceiver
7211050		100G QSFP28 LR4 LAN WDM 10KM LC SMF Fiber Optic Transceiver
7211060		100G QSFP28 ER4 LAN WDM 30KM/40KM LC SMF Fiber Optic Transceiver
7211070		100G QSFP28 ZR4 LAN WDM 80KM LC SMF Fiber Optic Transceiver

1 Absolute Maximum Ratings

Parameter	Symbol	Min.	Typical	Max.	Unit	Note
Storage Temperature (℃）	TS	-40		85	°C
Relative Humidity	RH	5		95	%
Power Supply Voltage	VCC	-0.3		4	V
Signal Input Voltage	Vin	Vcc-0.3		Vcc+0.3	V

2 Recommended Operating Environment

Parameter	Symbol	Min.	Typical	Max.	Unit	Note
Case operating Temperature	TOP	0		70	°C	Without air flow
Power Supply Voltage	VCC	3.13	3.3	3.47	V
Power Supply Current	ICC			900	mA
Data Rate	BR		25.78125		Gbps	Each Channel
Transmission Distance with	TD	0		2	km

3 Electrical Characteristics (TOP = 0 to 70 °C, VCC = 3.14 to 3.46 Volts)

Parameter	Symbol	Min.	Typical	Max.	Unit	Note
Supply Voltage	Vcc	3.13	3.3	3.47	V
Supply Current	Icc			900	mA
Transmitter
Input differential impedance	Rin		100		Ω	1
Differential data input swing	Vin.pp	180		1000	mV
Transmit Disable Voltage	VD	Vcc–1.3		Vcc	V
Transmit Enable Voltage	VEN	Vee		Vee+ 0.8	V	2
Receiver
Differential data output swing	Vout.pp	300		850	mV	3
Data output rise time	tr	28			ps	4
Data output fall time	tf	28			ps	4
LOS Fault	VLOS fault	Vcc–1.3		VccHOST	V	5
LOS Normal	VLOS norm	Vee		Vee+0.8	V	5
Power Supply Rejection	PSR	100			mVpp	6

Notes:
1) Connected directly to TX data input pins. AC coupled thereafter.
2) Or open circuit.
3) Into 100 ohms differential termination.
4) 20 – 80 %.
5) Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through
the recommended power supply filtering network.

4 Optical Characteristics

Parameter	Symbol	Min.	Typical	Max.	Unit	NOTE
Transmitter
Wavelength Assignment	λ0	1264.5	1271	1277.5	nm
	λ1	1284.5	1291	1297.5	nm
	λ2	1304.5	1311	1317.5	nm
	λ3	1324.5	1331	1337.5	nm
Total Output. Power	POUT			8.5	dBm
Average Launch Power Per lane		-6.5		2.5	dBm
Spectral Width (-20dB)	σ			1	nm
SMSR		30			dB
Optical Extinction Ratio	ER	3.5			dB
Average launch Power off per lane	Poff			-30	dBm
Transmitter and Dispersion Penalty per lane	TDP			3.3	dB
RIN	RIN			-128	dB/Hz
Output Eye Mask definition {X1，X2，X3，Y1，Y2，Y3}	{0.25，0.42，0.46，0.28，0.3，0.4}
Receiver
Rx Sensitivity per lane	RSENS			-10	dBm	1
Input Saturation Power (Overload)	Psat			2.5	dBm
Receiver Reflectance	Rr			-26	dB

Note:
1) Measured with a PRBS 231-1 test pattern, @25.78Gb/s, BER<10-12 .

5.Pin Assignment

1 1

6 Transceiver Block Diagram

Pin	Symbol	Name/Description	Note
1	GND	Transmitter Ground (Common with Receiver Ground)	1
2	Tx2n	Transmitter Inverted Data Input
3	Tx2p	Transmitter Non-Inverted Data output
4	GND	Transmitter Ground (Common with Receiver Ground)	1
5	Tx4n	Transmitter Inverted Data Input
6	Tx4p	Transmitter Non-Inverted Data output
7	GND	Transmitter Ground (Common with Receiver Ground)	1
8	ModSelL	Module Select
9	ResetL	Module Reset
10	VccRx	3.3V Power Supply Receiver	2
11	SCL	2-Wire serial Interface Clock
12	SDA	2-Wire serial Interface Data
13	GND	Transmitter Ground (Common with Receiver Ground)
14	Rx3p	Receiver Non-Inverted Data Output
15	Rx3n	Receiver Inverted Data Output
16	GND	Transmitter Ground (Common with Receiver Ground)	1
17	Rx1p	Receiver Non-Inverted Data Output
18	Rx1n	Receiver Inverted Data Output
19	GND	Transmitter Ground (Common with Receiver Ground)	1
20	GND	Transmitter Ground (Common with Receiver Ground)	1
21	Rx2n	Receiver Inverted Data Output
22	Rx2p	Receiver Non-Inverted Data Output
23	GND	Transmitter Ground (Common with Receiver Ground)	1
24	Rx4n	Receiver Inverted Data Output	1
25	Rx4p	Receiver Non-Inverted Data Output
26	GND	Transmitter Ground (Common with Receiver Ground)	1
27	ModPrsl	Module Present
28	IntL	Interrupt
29	VccTx	3.3V power supply transmitter	2
30	Vcc1	3.3V power supply	2
31	LPMode	Low Power Mode
32	GND	Transmitter Ground (Common with Receiver Ground)	1
33	Tx3p	Transmitter Non-Inverted Data Input
34	Tx3n	Transmitter Inverted Data Output
35	GND	Transmitter Ground (Common with Receiver Ground)	1
36	Tx1p	Transmitter Non-Inverted Data Input
37	Tx1n	Transmitter Inverted Data Output
1	GND	Transmitter Ground (Common with Receiver Ground)	1

Note:
1) GND is the symbol for signal and supply (power) common for QSFP28 modules. All are common within the QSFP28 module
and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal
common ground plane.
2) VccRx, Vcc1 and VccTx are the receiving and transmission power suppliers and shall be applied concurrently. Recommended
host board power supply filtering is shown below. Vcc Rx, Vcc1 and Vcc Tx may be internally connected within the QSFP28
transceiver module in any combination. The connector pins are each rated for a maximum current of 500mA.

7 Digital Diagnostic Functions

100G QSFP28 LR4 2KM support the 2-wire serial communication protocol as defined in the QSFP28 MSA.
Which allows real-time access to the following operating parameters:
 Transceiver temperature
 Laser bias current
 Transmitted optical power
 Received optical power
 Transceiver supply voltage

It also provides a sophisticated system of alarm and warning flags, which may be used to alert end-users when particular operating parameters are outside of a factory-set normal range.

The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller inside the transceiver, which is accessed through the 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL pin) is generated by the host. The positive edge clocks data into the QSFP28 transceiver into those segments of its memory map that are not write-protected.

The negative edge clocks data from the QSFP28 transceiver. The serial data signal (SDA pin) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially. The 2-wire serial interface provides sequential or random access to the 8 bit parameters, addressed from 00h to the maximum address of the memory.

This clause defines the Memory Map for QSFP28 transceiver used for serial ID, digital monitoring and certain control functions. The interface is mandatory for all QSFP28 devices. The memory map has been changed in order to accommodate 4 optical channels and limit the required memory space. The structure of the memory is shown in Figure 2 -QSFP28 Memory Map. The memory space is arranged into a lower, single page, address space of 128 bytes and multiple upper address space pages. This structure permits timely access to addresses in the lower page, e.g. Interrupt Flags and Monitors. Less time critical entries, e.g. serial ID information and threshold settings, are available with the Page Select function. The structure also provides address expansion by adding additional upper pages as needed. For example, in Figure 2 upper pages 01 and 02 are optional. Upper page 01 allows implementation of Application Select Table, and upper page 02 provides user read/write space. The lower page and upper pages 00 and 03 are always implemented. The interface address used is A0xh and is mainly used for time critical data like interrupt handling in order to enable a “one-time-read” for all data related to an interrupt situation. After an Interrupt, IntL, has been asserted, the host can read out the flag field to determine the effected channel and type of flag.

For more detailed information including memory map definitions, please see the QSFP28 MSA Specification.

100G QSFP28 LR4 CWDM 2KM LC SMF Fiber Optical Transceiver

Zion Code and Description

Applications

Description

Main product parameters

Zion Communication’s Hot 100G transceiver types