RAID Introduction and Case Studies（Part 1）
With the development of RAID storage technology, significant breakthroughs have been made over the past few decades, providing higher reliability and performance for data storage. Future RAID storage will face greater challenges and opportunities, and new technologies and innovations will drive further advancements in RAID storage in terms of fault tolerance, performance, scalability, and cost-effectiveness
Network Interface Guide: From Technical Principles to LR-LINK Industrial-Grade Solutions
Today is digital age, the importance of network interfaces as the critical components connecting devices to networks is self-evident. Serving as the hardware/software interaction point for data exchange between devices and networks, network interfaces undertake key tasks such as protocol conversion, signal modulation, and data encapsulation.
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The LRXP8510-X3ATL(10/1G)(T1) SFP+ optical transceiver module is based on the 10G Ethernet IEEE 802.3ae standard and SFF-8431 standard, providing a fast and reliable interface for 10G Ethernet applications. This product implements digital diagnostic functions via a 2-wire serial bus and complies with the SFF-8472 standard.
Applications
10GBASE-LR/LW 10G Ethernet
1000BASE-LX 1G Ethernet
Product Specifications
|
Parameter |
Symbol |
Min |
Typ. |
Max |
Unit |
Note |
|
Data rate 1 |
DR1 |
|
1.25 |
|
Gb/s |
1 |
|
Data rate2 |
DR2 |
9.83 |
10.3125 |
11.3 |
Gb/s |
1 |
|
Error Bit Rate |
BER |
|
|
10- 12 |
|
|
|
Operating Temperature |
TC |
0 |
|
70 |
。C |
2 |
|
Storage temperature |
TSTO |
-40 |
|
85 |
。C |
3 |
|
Operating Current |
ICC |
|
290 |
380 |
mA |
4 |
|
Operating Voltage |
VCC |
3.14 |
3.3 |
3.46 |
V |
|
|
Maximum Voltage |
PC |
|
1.0 |
1.3 |
W |
|
|
Data rate (RS0=LOW) |
V MAX |
- 0 . 5 |
|
4 |
V |
4 |
Note:
1. IEEE 802.3ae
2. Enclosure surface temperature
3. Ambient temperature
4. Electrical interface
Transmission distance
|
Data rate |
Fiber Optic Type |
Distance Range (km) |
|
1.25 Gb/s |
9/125 um Single-mode fiber |
20 |
|
9.83-11.3 Gb/s |
9/125 um Single-mode fiber |
20 |
VCC =3.14V to 3.46V ，TC
|
Parameter |
Symbol |
Min |
Typ. |
Max |
Unit |
Note |
|
Transmit optical power @ 1.25Gb/s |
PTX1 |
-9 . 5 |
|
-3 |
dBm |
1 |
|
Transmit optical power @ 10.3Gb/s |
PTX2 |
-8 . 2 |
|
0.5 |
dBm |
1 |
|
Optical center wavelength |
λC |
1260 |
|
1355 |
nm |
|
|
Optical modulation amplitude |
OMA |
-5 . 2 |
|
|
dBm |
2 |
|
Extinction ratio @ 1.25Gb/s |
ER1 |
9 |
|
|
dB |
|
|
Extinction ratio @ 10.3 Gb/s |
ER2 |
3.5 |
|
|
dB |
|
|
Spectral width (-20 dB) |
Δλ |
|
|
1 |
nm |
|
|
Side-mode suppression ratio |
SMSR |
30 |
|
|
dB |
|
|
Relative intensity noise |
RIN |
|
|
- 128 |
dB/Hz |
|
|
Transmitter dispersion cost |
TDP |
|
|
3.2 |
dB |
|
|
Output optical power when transmitter is off |
POUT_OFF |
|
|
-30 |
dBm |
1 |
|
Jitter |
|
|
|
|
|
2 |
Note:
1. Average optical power
2. Compliant with IEEE 802.3ae standard
Optical Characteristics—Receiver
VCC = 3.14V to 3.46V, TC
|
Parameter |
Symbol |
Min |
Typ. |
Max |
Unit |
Note |
|
Optical Center Wavelength |
λC |
1260 |
|
1600 |
nm |
|
|
Receiver Overload |
POL |
0.5 |
|
|
dBm |
|
|
Receiver Sensitivity @ 1.25Gb/s |
RX_SEN1 |
|
|
- 19 |
dBm |
1 |
|
Receiver Sensitivity @ 10.3Gb/s |
RX_SEN2 |
|
|
- 14 .4 |
dBm |
2 |
|
Receiver Reflectivity |
TRRX |
|
|
- 12 |
dB |
|
|
LOS Signal Active @ 1.25Gb/s |
LOSA |
-30 |
|
|
dBm |
|
|
LOS Signal Active @ 10.3Gb/s |
LOSA |
-30 |
|
|
dBm |
|
|
LOS Signal Loss @ 1.25Gb/s |
LOSD |
|
|
- 1 7 |
dBm |
|
|
LOS Signal Loss @ 10.3Gb/s |
LOSD |
|
|
- 1 7 |
dBm |
|
|
LOS Signal Latency Range |
LOSH |
0.5 |
|
|
dB |
|
Note:
1. Average optical power measured using the minimum ER value within the defined range; BER < 10⁻¹²; 27 -1 PRBS
2. Average optical power measured using the minimum ER value within the defined range; BER < 10⁻¹²; 231 -1 PRBS
Electrical Characteristics—Transmitter
VCC =3.14V to 3.46V ，TC
|
Parameter |
Symbol |
Min |
Typ. |
Max |
Unit |
Note |
|
Differential Input Impedance |
RIN |
|
100 |
|
Ω |
|
|
Differential Input Swing |
VIN PP |
180 |
|
700 |
mV |
|
|
Transmitter Shutdown Voltage |
VD |
2 |
|
VCC |
V |
|
|
Transmitter Enable Voltage |
VEN |
VEE |
|
VEE+ 0.8 |
V |
|
Electrical Characteristics—Receiver
VCC = 3.14V to 3.46V, TC
|
Parameter |
Symbol |
Min |
Typ. |
Max |
Unit |
Note |
|
Differential Output Swing |
VOUT PP |
300 |
|
850 |
mV |
|
|
Output Signal Rise/Fall Time (20%-80%) |
tr/tf |
28 |
|
|
ps |
|
|
LOS Signal Active |
VLOS A |
2 |
|
VCC HOST |
V |
|
|
LOS Signal Inactive |
VLOS D |
VEE |
|
VEE +0.5 |
V |
|
DDM Threshold Information
|
Parameter |
Alarm Threshold |
Warning Threshold |
|||
|
High Value |
Low Value |
High Value |
Low Value |
||
|
Temperature（ 。 C） |
1G |
90 (5A 00) |
-45 (D3 00) |
85 (55 00) |
-40 (D8 00) |
|
10G |
90 (5A 00) |
-10 (F6 00) |
85 (55 00) |
-5 (FB 00) |
|
|
voltage（V） |
3.63(8D CC) |
2.97 (74 04) |
3.46 (87 28) |
3.13 (7A 44) |
|
|
Electric current（ mA ） |
100 (C3 50) |
2 (03 E8) |
80 (9C 40) |
4 (07 D0) |
|
|
Optical power output（dBm） |
1G |
-2.2 (17 7E) |
-10.5 (03 81) |
-3 (13 93) |
-9.5 (04 62) |
|
10G |
1.3 (34 98) |
-9.2 (04 BA) |
0.5 (2B D4) |
-8.2 (05 E9) |
|
|
Received optical power（dBm） |
1G |
3.0 (4E 20) |
-30.4 (00 09) |
0.0 (27 10) |
-27.2 (00 13) |
|
10G |
3.0 (4E 20) |
-18.0 (00 9E) |
0.0 (27 10) |
-15.0 (01 3C) |
|
|
PIN # |
Symbol |
Instruction |
Note |
|
1 |
VEET |
Transmit Ground (shared with Receive Ground) |
1 |
|
2 |
TX_ FAULT |
Transmit Fault Alarm |
|
|
3 |
TX_DISABLE |
This signal disables the module's transmitter when high or open-circuited |
2 |
|
4 |
SDA |
Two-Wire Serial Interface Data Line |
3 |
|
5 |
SCL |
Two-Wire Serial Interface Clock Line |
3 |
|
6 |
MOD ABS |
Module Insertion Indicator Pin, internally grounded within the module |
3 |
|
7 |
RS0 |
Module Rate Selection: Open circuit or low level = 1.25 Gb/s rate (low bandwidth) High level = 9.95 - 10.31 Gb/s rate (high bandwidth) |
|
|
8 |
LOS |
Signal Loss Indicator, Low Level Indicates Module Normal Operation |
4 |
|
9 |
RS1 |
Not Connected |
|
|
10 |
VEER |
Receiver Ground (Shared with Transmitter Ground) |
1 |
|
11 |
VEER |
Receiver Ground (Shared with Transmitter Ground) |
1 |
|
12 |
RD– |
Receiver Data Output Negative, AC-Coupled |
|
|
13 |
RD+ |
Receiver Data Output Positive, AC-Coupled |
|
|
14 |
VEER |
Receiver Ground (Shared with transmitter ground) |
1 |
|
15 |
VCCR |
Receiver power supply |
|
|
16 |
VCCT |
Transmitter power supply |
|
|
17 |
VEET |
Transmitter ground (Shared with receiver ground) |
1 |
|
18 |
TD + |
Transmitter data input positive, AC-coupled |
|
|
19 |
TD– |
Transmitter data input negative, AC-coupled |
|
|
20 |
VEET |
Transmitter ground (Shared with receiver ground) |
1 |
|
Model |
Description |
|
LRXP8510-X3ATL(10/1G)(T1) |
1000BASE-LX and 10 GBASE-LR SFP+ 1310 nm LC interface Single-mode fiber transmission distance: 20 km Commercial temperature range |
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