Arista Networks Qsfp-100g-Sr4 Compatible 100gbase-Sr4 Qsfp28 850nm 100m Dom MTP/MPO Mmf Optical Transceiver Module

• Type: Both Wired and Wireless
• Certification: CE, ISO, RoHS, FCC
• Condition: New
• Transport Package: Blister Pack
• Trademark: Linksall
• Origin: China
• Model NO.: LADX-S100-ZR
• HS Code: 8517706000
• Production Capacity: 100, 000 Per Year

Product Description

100Gb/s QSFP28 SR4 Transceiver Module

PRODUCT FEATURES  

1. Up to 27.952 Gbps Data rate per channel
2. Maximum link length of 150m links on OM4 multimode fiber
3. High Reliability 850nm VCSEL technology
4. Electrically hot-pluggable
5. Digital diagnostic SFF-8636 compliant
6. Compliant with QSFP28 MSA 
7. Case operating temperature range:0°C to 70°C 
8. Power dissipation < 2.0W

 APPLICATIONS

1. 100G Ethernet &100GBASE-SR4
2. ITU-T OTU4

STANDARD

1. Compliant to IEEE 802.3 bm
2. Compliant to SFF-8636
3. RoHS Compliant.

General Description
LAQ2-8485-SR is designed for use in 100 Gigabit per second links over multimode fiber. They are compliant with the QSFP28 MSA and IEEE 802.3bm
The optical transmitter portion of the transceiver incorporates a 4-channel VCSEL (Vertical Cavity Surface Emitting Laser) array, a 4-channel input buffer and laser driver, diagnostic monitors, control and bias blocks. For module control, the control interface incorporates a Two Wire Serial interface of clock and data signals. Diagnostic monitors for VCSEL bias, module temperature, transmitted optical power,received optical power and supply voltage are implemented and results are available through the TWS interface. Alarm and warning thresholds are established for the monitored attributes. Flags are set and interrupts generated when the attributes are outside the thresholds. Flags are also set and interrupts generated for loss of input signal (LOS) and transmitter fault conditions. All flags are latched and will remain set even if the condition initiating the latch clears and operation resumes. All interrupts can be masked and flags are reset by reading the appropriate flag register. The optical output will squelch for loss of input signal unless squelch is disabled. Fault detection or channel deactivation through the TWS interface will disable the channel. Status, alarm/warning and fault information are available via the TWS interface.
The optical receiver portion of the transceiver incorporates a 4-channel PIN photodiode array, a 4-channel TIA array, a 4 channel output buffer, diagnostic monitors, and control and bias blocks. Diagnostic monitors for optical input power are implemented and results are available through the TWS interface. Alarm and warning thresholds are established for the monitored attributes. Flags are set and interrupts generated when the attributes are outside the thresholds. Flags are also set and interrupts generated for loss of optical input signal (LOS). All flags are latched and will remain set even if the condition initiating the flag clears and operation resumes. All interrupts can be masked and flags are reset upon reading the appropriate flag register. The electrical output will squelch for loss of input signal (unless squelch is disabled) and channel de-activation through TWS interface. Status and alarm/warning information are available via the TWS interface.
Absolute Maximum Ratings  

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Storage Temperature	Ts	-40	-	85	ºC
Relative Humidity	RH	5	-	95	%
Power Supply Voltage	VCC	-0.3	-	4	V
Signal Input Voltage		Vcc-0.3	-	Vcc+0.3	V

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Case Operating Temperature	Tcase	0	-	70	ºC	Without air flow
Power Supply Voltage	VCC	3.14	3.3	3.46	V
Power Supply Current	ICC	-		600	mA
Data Rate	BR		25.78125		Gbps	Each channel
Transmission Distance	TD		-	150	m	OM4  MMF

Note:100G Ethernet &100GBASE-SR4 and ITU-T OTU4 has different register setting ,not auto- Negotiatio
Optical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	NOTE
Transmitter
Center Wavelength	λ0	840		860	nm
Average Launch Power each lane		-8.4		2.4	dBm
Spectral Width (RMS)	σ			0.6	nm
Optical Extinction Ratio	ER	2			dB
Optical Return Loss Tolerance	ORL			12	dB
Output Eye Mask	Compliant with IEEE 802.3bm
Receiver
Receiver Wavelength	λin	840		860	nm
Rx Sensitivity per lane	RSENS			-10.3	dBm	1
Input Saturation Power (Overload)	Psat	2.4			dBm
Receiver Reflectance	Rr			-12	dB

Notes:  

1. Measured with a PRBS 2³¹-1 test pattern, @25.78Gb/s, BER<5.2*10^-5. 
   1. Electrical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	NOTE
Supply Voltage	Vcc	3.14	3.3	3.46	V
Supply Current	Icc			600	mA
Transmitter
Input differential impedance	Rin		100		Ω	1
Differential data input swing	Vin,pp	180		1000	mV
Single ended input voltage tolerance	VinT	-0.3		4.0	V
Receiver
Differential data output swing	Vout,pp	300		850	mV	2
Single-ended output voltage		-0.3		4.0	V

Notes: 

1. Connected directly to TX data input pins. AC coupled thereafter.  
2. Into 100Ω ohms differential termination.  
   1. Pin Assignment

Figure 1---Pin out of Connector Block on Host Board

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,not connect
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
38	GND	Transmitter Ground  (Common with Receiver Ground)	1

Notes:
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.
 

1. 1. Digital Diagnostic Functions

LAQ2-8485-SR 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.

                Figure 2 -QSFP28 Memory Map

 Lower Memory Map
The lower 128 bytes of the 2-wire serial bus address space, see Table 1, is used to access a variety of measurements and diagnostic functions, a set of control functions, and a means to select which of the various upper memory map pages are accessed on subsequent reads. This portion of the address space is always directly addressable and thus is chosen for monitoring and control functions that may need to be repeatedly accessed. The definition of identifier field is the same as page 00h Byte 128.



Table 1- Lower Memory Map
 

Byte Address	Description	Type
0	Identifier (1 Byte)	Read-Only
1-2	Status (2 Bytes)	Read-Only
3-21	Interrupt Flags (19 Bytes)	Read-Only
22-33	Module Monitors (12 Bytes)	Read-Only
34-81	Channel Monitors (48 Bytes)	Read-Only
82-85	Reserved (4 Bytes)	Read-Only
86-97	Control (12 Bytes)	Read/Write
98-99	Reserved (2 Bytes)	Read/Write
100-106	Module and Channel Masks (7 Bytes)	Read/Write
107-118	Reserved (12 Bytes)	Read/Write
119-122	Password Change Entry Area (optional) (4 Bytes)	Read/Write
123-126	Password Entry Area (optional) (4 Bytes)	Read/Write
127	Page Select Byte	Read/Write

       
Status Indicator Bits
The Status Indicators are defined inTable 2.

 Table 2 - Status Indicators
 

Byte	Bit	Name	Description
1	All	Revision Compliance	00h: Revision not specified. Do not use for SFF-8636 rev 2.5 or Higher; 01h: SFF-8436 Rev 4.8 or earlier; 02h: Includes functionality described in revision 4.8 or earlier of SFF-8436, except that this byte and Bytes 186-189 are as defined in this document; 03h: SFF-8636 Rev 1.3 or earlier; 04h: SFF-8636 Rev 1.4; 05h: SFF-8636 Rev 1.5; 06h: SFF-8636 Rev 2.0; 07h: SFF-8636 Rev 2.5, 2.6 and 2.7; 08-FFh: 08-FFh Unallocated
2	7	Reserved
	6	Reserved
	5	Reserved
	4	Reserved
	3	Reserved
	2	Flat_mem	Upper memory flat or paged.Flat memory: 0= paging, 1= Page 00h only
	1	IntL	Digital state of the IntL Interrupt output pin (if pin supported)
	0	Data_Not_Ready	Indicates free-side has not yet achieved power up and monitor data is not ready. Bit remains high until data is ready to be read at which time the device sets the bit low.

Interrupt Flags
A portion of the memory map (Bytes 3 through 21), form a flag field. Within this field, the status of LOS and Tx Fault as well as alarms and warnings for the various monitored items is reported. For normal operation and default state, the bits in this field have the value of 0b. For the defined conditions of LOS, Tx Fault, module and channel alarms and warnings, the appropriate bit or bits are set, value = 1b. Once asserted, the bits remained set (latched) until cleared by a read operation that includes the affected bit or reset by the ResetL pin. The Channel Status Interrupt Flags are defined in Table 3.
Table 3 - Channel Status Interrupt Flags
 

Byte	Bit	Name	Description
3	7	L-Tx4 LOS	Latched TX LOS indicator, channel 4 (Not support)
	6	L-Tx3 LOS	Latched TX LOS indicator, channel 3 (Not support)
	5	L-Tx2 LOS	Latched TX LOS indicator, channel 2 (Not support)
	4	L-Tx1 LOS	Latched TX LOS indicator, channel 1 (Not support)
	3	L-Rx4 LOS	Latched RX LOS indicator, channel 4
	2	L-Rx3 LOS	Latched RX LOS indicator, channel 3
	1	L-Rx2 LOS	Latched RX LOS indicator, channel 2
	0	L-Rx1 LOS	Latched RX LOS indicator, channel 1
4	7	L-Tx4 Adapt EQ Fault	Latched TX, Adaptive EQ fault indicator, channel 4 (if supported)
	6	L-Tx3 Adapt EQ Fault	Latched TX, Adaptive EQ fault indicator, channel 3 (if supported)
	5	L-Tx2 Adapt EQ Fault	Latched TX, Adaptive EQ fault indicator, channel 2 (if supported)
	4	L-Tx1 Adapt EQ Fault	Latched TX, Adaptive EQ fault indicator, channel 1 (if supported)
	3	L-Tx4 Fault	Latched TX Transmitter/Laser fault indicator, channel 4
	2	L-Tx3 Fault	Latched TX Transmitter/Laser fault indicator, channel 3
	1	L-Tx2 Fault	Latched TX Transmitter/Laser fault indicator, channel 2
	0	L-Tx1 Fault	Latched TX Transmitter/Laser fault indicator, channel 1
5	7	L-Tx4 LOL	Latched TX CDR LOL indicator, ch 4
	6	L-Tx3 LOL	Latched TX CDR LOL indicator, ch 3
	5	L-Tx2 LOL	Latched TX CDR LOL indicator, ch 2
	4	L-Tx1 LOL	Latched TX CDR LOL indicator, ch 1
	3	L-Rx4 LOL	Latched RX CDR LOL indicator, ch 4
	2	L-Rx3 LOL	Latched RX CDR LOL indicator, ch 3
	1	L-Rx2 LOL	Latched RX CDR LOL indicator, ch 2
	0	L-Rx1 LOL	Latched RX CDR LOL indicator, ch 1

The Module Monitor Interrupt Flags are defined in Table 4.

  Table 4 - Module Monitor Interrupt Flags

Byte	Bit	Name	Description
6	7	L-Temp High Alarm	Latched high temperature alarm
	6	L-Temp Low Alarm	Latched low temperature alarm
	5	L-Temp High Warning	Latched high temperature warning
	4	L-Temp Low Warning	Latched low temperature warning
	3-1	Reserved
	0	Initialization complete flag	Asserted (one) after initialization and/or reset has completed. Returns to Zero when read. See Table 6-25 for the Initialization Complete Implemented bit.
7	7	L-Vcc High Alarm	Latched high supply voltage alarm
	6	L-Vcc Low Alarm	Latched low supply voltage alarm
	5	L-Vcc High Warning	Latched high supply voltage warning
	4	L-Vcc Low Warning	Latched low supply voltage warning
	3-0	Reserved
8	All	Vendor Specific

The Channel Monitor Interrupt Flags are defined in Table 5

Table 5 - Channel Monitor Interrupt Flags

Byte	Bit	Name	Description
9	7	L-Rx1 Power High Alarm	Latched high RX power alarm, channel 1
	6	L-Rx1 Power Low Alarm	Latched low RX power alarm, channel 1
	5	L-Rx1 Power High Warning	Latched high RX power warning, channel 1
	4	L-Rx1 Power Low Warning	Latched low RX power warning, channel 1
	3	L-Rx2 Power High Alarm	Latched high RX power alarm, channel 2
	2	L-Rx2 Power Low Alarm	Latched low RX power alarm, channel 2
	1	L-Rx2 Power High Warning	Latched high RX power warning, channel 2
	0	L-Rx2 Power Low Warning	Latched low RX power warning, channel 2
10	7	L-Rx3 Power High Alarm	Latched high RX power alarm, channel 3
	6	L-Rx3 Power Low Alarm	Latched low RX power alarm, channel 3
	5	L-Rx3 Power High Warning	Latched high RX power warning, channel 3
	4	L-Rx3 Power Low Warning	Latched low RX power warning, channel 3
	3	L-Rx4 Power High Alarm	Latched high RX power alarm, channel 4
	2	L-Rx4 Power Low Alarm	Latched low RX power alarm, channel 4
	1	L-Rx4 Power High Warning	Latched high RX power warning, channel 4
	0	L-Rx4 Power Low Warning	Latched low RX power warning, channel 4
11	7	L-Tx1 Bias High Alarm	Latched high TX bias alarm, channel 1
	6	L-Tx1 Bias Low Alarm	Latched low TX bias alarm, channel 1
	5	L-Tx1 Bias High Warning	Latched high TX bias warning, channel 1
	4	L-Tx1 Bias Low Warning	Latched low TX bias warning, channel 1
	3	L-Tx2 Bias High Alarm	Latched high TX bias alarm, channel 2
	2	L-Tx2 Bias Low Alarm	Latched low TX bias alarm, channel 2
	1	L-Tx2 Bias High Warning	Latched high TX bias warning, channel 2
	0	L-Tx2 Bias Low Warning	Latched low TX bias warning, channel 2
12	7	L-Tx3 Bias High Alarm	Latched high TX bias alarm, channel 3
	6	L-Tx3 Bias Low Alarm	Latched low TX bias alarm, channel 3
	5	L-Tx3 Bias High Warning	Latched high TX bias warning, channel 3
	4	L-Tx3 Bias Low Warning	Latched low TX bias warning, channel 3
	3	L-Tx4 Bias High Alarm	Latched high TX bias alarm, channel 4
	2	L-Tx4 Bias Low Alarm	Latched low TX bias alarm, channel 4
	1	L-Tx4 Bias High Warning	Latched high TX bias warning, channel 4
	0	L-Tx4 Bias Low Warning	Latched low TX bias warning, channel 4
13	7	L-Tx1 Power High Alarm	Latched high TX Power alarm, channel 1
	6	L-Tx1 Power Low Alarm	Latched low TX Power alarm, channel 1
	5	L-Tx1 Power High Warning	Latched high TX Power warning, channel 1
	4	L-Tx1 Power Low Warning	Latched low TX Power warning, channel 1
	3	L-Tx2 Power High Alarm	Latched high TX Power alarm, channel 2
	2	L-Tx2 Power Low Alarm	Latched low TX Power alarm, channel 2
	1	L-Tx2 Power High Warning	Latched high TX Power warning, channel 2
	0	L-Tx2 Power Low Warning	Latched low TX Power warning, channel 2
14	7	L-Tx3 Power High Alarm	Latched high TX Power alarm, channel 3
	6	L-Tx3 Power Low Alarm	Latched low TX Power alarm, channel 3
	5	L-Tx31 Power High Warning	Latched high TX Power warning, channel 3
	4	L-Tx3 Power Low Warning	Latched low TX Power warning, channel 3
	3	L-Tx4 Power High Alarm	Latched high TX Power alarm, channel 4
	2	L-Tx4 Power Low Alarm	Latched low TX Power alarm, channel 4
	1	L-Tx4 Power High Warning	Latched high TX Power warning, channel 4
	0	L-Tx4 Power Low Warning	Latched low TX Power warning, channel 4
15-16	All	Reserved	Reserved channel monitor flags, set 4
17-18	All	Reserved	Reserved channel monitor flags, set 5
19-20	All	Vendor Specific	Reserved channel monitor flags, set 6
21	All	Vendor Specific

 Module Monitors
Real time monitoring for the QSFP28 module include transceiver temperature, transceiver supply voltage, and monitoring for each transmit and receive channel. Measured parameters are reported in 16-bit data fields, i.e., two concatenated bytes. These are shown in Table 6.

Table 6 - Module Monitoring Values

Byte	Bit	Name	Description
22	All	Temperature MSB	Internally measured module temperature
23	All	Temperature LSB
24-25	All	Reserved
26	All	Supply Voltage MSB	Internally measured module supply voltage
27	All	Supply Voltage LSB
28-29	All	Reserved
30-33	All	Vendor Specific

Channel Monitoring
Real time channel monitoring is for each transmit and receive channel and includes optical input power ,Tx bias current and Tx output Power. Measurements are calibrated over vendor specified operating temperature and voltage and should be interpreted as defined below. Alarm and warning threshold values should be interpreted in the same manner as real time 16-bit data. Table 7 defines the Channel Monitoring.
Table 7 - Channel Monitoring Values

Byte	Bit	Name	Description
34	All	Rx1 Power MSB	Internally measured RX input power, channel 1
35	All	Rx1 Power LSB
36	All	Rx2 Power MSB	Internally measured RX input power, channel 2
37	All	Rx2 Power LSB
38	All	Rx3 Power MSB	Internally measured RX input power, channel 3
39	All	Rx3 Power LSB
40	All	Rx4 Power MSB	Internally measured RX input power, channel 4
41	All	Rx4 Power LSB
42	All	Tx1 Bias MSB	Internally measured TX bias, channel 1
43	All	Tx1 Bias LSB
44	All	Tx2 Bias MSB	Internally measured TX bias, channel 2
45	All	Tx2 Bias LSB
46	All	Tx3 Bias MSB	Internally measured TX bias, channel 3
47	All	Tx3 Bias LSB
48	All	Tx4 Bias MSB	Internally measured TX bias, channel 4
49	All	Tx4 Bias LSB
50	All	Tx1 Power MSB	Internally measured TX output power, channel 1
51	All	Tx1 Power LSB
52	All	Tx2 Power MSB	Internally measured TX output power, channel 2
53	All	Tx2 Power LSB
54	All	Tx3 Power MSB	Internally measured TX output power, channel 3
55	All	Tx3 Power LSB
56	All	Tx4 Power MSB	Internally measured TX output power, channel 4
57	All	Tx4 Power LSB
58-65			Reserved channel monitor set 4
66-73			Reserved channel monitor set 5
74-81		Vendor Specific

Control Bytes
Control Bytes are defined in Table 8
                                Table 8 - Control Bytes

Byte	Bit	Name	Description
86	7-4	Reserved
	3	Tx4_Disable	Read/write bit that allows software disable of transmitters
	2	Tx3_Disable	Read/write bit that allows software disable of transmitters
	1	Tx2_Disable	Read/write bit that allows software disable of transmitters
	0	Tx1_Disable	Read/write bit that allows software disable of transmitters
87	7	Rx4_Rate_Select	Software Rate Select, Rx channel 4 msb
	6	Rx4_Rate_Select	Software Rate Select, Rx channel 4 lsb
	5	Rx3_Rate_Select	Software Rate Select, Rx channel 3 msb
	4	Rx3_Rate_Select	Software Rate Select, Rx channel 3 lsb
	3	Rx2_Rate_Select	Software Rate Select, Rx channel 2 msb
	2	Rx2_Rate_Select	Software Rate Select, Rx channel 2 lsb
	1	Rx1_Rate_Select	Software Rate Select, Rx channel 1 msb
	0	Rx1_Rate_Select	Software Rate Select, Rx channel 1 lsb
88	7	Tx4_Rate_Select	Software Rate Select, Tx channel 4 msb (Not support)
	6	Tx4_Rate_Select	Software Rate Select, Tx channel 4 lsb (Not support)
	5	Tx3_Rate_Select	Software Rate Select, Tx channel 3 msb (Not support)
	4	Tx3_Rate_Select	Software Rate Select, Tx channel 3 lsb (Not support)
	3	Tx2_Rate_Select	Software Rate Select, Tx channel 2 msb (Not support)
	2	Tx2_Rate_Select	Software Rate Select, Tx channel 2 lsb (Not support)
	1	Tx1_Rate_Select	Software Rate Select, Tx channel 1 msb (Not support)
	0	Tx1_Rate_Select	Software Rate Select, Tx channel 1 lsb (Not support)
89	All	Rx4_Application_Select	Software Application Select per SFF-8079, Rx Channel 4
90	All	Rx3_Application_Select	Software Application Select per SFF-8079, Rx Channel 3
91	All	Rx2_Application_Select	Software Application Select per SFF-8079, Rx Channel 2
92	All	Rx1_Application_Select	Software Application Select per SFF-8079, Rx Channel 1
93	7-3	Reserved
	2	High Power Class Enable (Classes 5-7)	When set (= 1b) enables Power Classes 5 to 7 in Byte 129 to exceed 3.5W. When cleared (=0b), modules with power classes 5 to 7 must dissipate less than 3.5W (but are not required to be fully functional). Default 0.
	1	Power_set	Power set to low power mode. Default 0.
	0	Power_over-ride	Override of LPMode signal setting the power mode with software.
94	All	Tx4_Application_Select	Software Application Select per SFF-8079, Tx Channel 4 (Not support)
95	All	Tx3_Application_Select	Software Application Select per SFF-8079, Tx Channel 3 (Not support)
96	All	Tx2_Application_Select	Software Application Select per SFF-8079, Tx Channel 2 (Not support)
97	All	Tx1_Application_Select	Software Application Select per SFF-8079, Tx Channel 1 (Not support)
98	7	Tx4_CDR_control	Channel 4 TX CDR Control (1b = CDR on, 0b = CDR off)
	6	Tx3_CDR_control	Channel 3 TX CDR Control (1b = CDR on, 0b = CDR off)
	5	Tx2_CDR_control	Channel 2 TX CDR Control (1b = CDR on, 0b = CDR off)
	4	Tx1_CDR_control	Channel 1 TX CDR Control (1b = CDR on, 0b = CDR off)
	3	Rx4_CDR_control	Channel 4 RX CDR Control(1b = CDR on, 0b = CDR off)
	2	Rx3_CDR_control	Channel 3 RX CDR Control(1b = CDR on, 0b = CDR off)
	1	Rx2_CDR_control	Channel 2 RX CDR Control(1b = CDR on, 0b = CDR off)
	0	Rx1_CDR_control	Channel 1 RX CDR Control(1b = CDR on, 0b = CDR off)
99	All	Reserved