Copper QSFP28 Cable. QSFP28 Passive Cable Assemblies, 0.4m/1m/1.5m/2m/2.5m/3m Reach RoHS6 Compliant

Similar documents
Copper QSFP28 Cable. Part No. Data rate(per lane) Length AWG Passive/Active Temp

Copper QSFP28 Cable Preliminary

QSFP+ Series Preliminary EOLQ-8540G-03-MO Series

SFP+ Cable Assemblies, 0.5m/1m/2m/3m/4m/5m/6m/7m/8m/9m/10m/11m/12m/15m Reach RoHS6 Compliant. Lengt

DQF8503 QSFP28 AOC 4X25.78Gb/s QSFP28 Active Optical Cable

40-Gbps QSFP + Optical Transceiver Module

QSFP28 100G MPO MMF 850nm 70m Transceiver AQPMDN85ADLN0782. Features. Applications. Ordering Information APPLIED OPTOELECTRONICS, INC.

QSFP28 Dual LC 100G SMF 2km Transceiver. Features. Applications. Ordering Information APPLIED OPTOELECTRONICS, INC.

40GBASE-ER4 Ethernet Industrial: -40 C to 85 C. Infiniband QDR and DDR Four 10G DFB base CWDM channels on. Distance * (note2) Interface Temp.

LTA8531 QSFP28 SR4 Transceiver

QSFP+ Series. EOLQ-1640G-10 Series. Features. Applications. Ordering Information. Single-Mode 40GBASE-LR4 QSFP+ Transceiver RoHS6 Compliant

T Q S - Q 1 L H 8 - X C A x x

XFP CWDM BIDI Series Preliminary

100G QSFP28 LR4 Receiver

1310nm SFP28 Single-Mode Transceiver, With DDM and Dual CDR Duplex SFP28 Transceiver, RoHS 6 Compliant. Fiber Type Gbps 1310nm and DFB 28.

SFP28 Series Preliminary EOLP-8525G-02-R. Features. Applications. Ordering information

SFP28 Series Preliminary EOLP-1325G-10-RX. Features. Applications. Ordering information

10G PON Series Preliminary

100G QSFP28 DAC Passive Copper Cable SLQS28-100PC-XX

850nm SFP28 Multi-Mode Transceiver, With Diagnostic Monitoring and Dual CDR Duplex SFP28 Transceiver, RoHS 6 Compliant. Fiber Type.

XFP BIDI Series EOLX-BI1696-9ADL & EOLX-BI1696-9DAL

Copper CFP Cable Preliminary EOLC-1HG-C-XX-YY Series

LX8501CDR 100G 100m QSFP28 Transceiver 100GBASE-SR4

EOLC-161HG-C-40-L1A Series

QSFP+ Dual LC 40G SMF 10km Transceiver. Features. Applications. Ordering Information APPLIED OPTOELECTRONICS, INC.

EOLC-1HG-C-XX-YYC2. Copper CFP2 Cable Preliminary. Features. Applications. Ordering Information

SFF Series EOLF Series

28 AOC. Version 01. Device type. Model Name. Voltage. Interface. Category LOS. Page 1 CML/CML. With DDMl 3.3V LVTTL VCSEL/PIN.

PROLABS QSFP-4x10G-AC7M-C QSFP+ to 4 SFP+ Active Copper Cable Assembly

DWDM SFP Series. Laser

OPENETICS. P/N Gb/sQSFP+SR4Transceiver PRODUCT FEATURES APPLICATIONS STANDARD. Specialist Manufacturer Voice Data Security.

SFF Series EOLF Series EOLF Series

XFP Series EOLX XX Series

SFP+ Series EOLP Features. Applications. Ordering information

XFP Series EOLX X. Features. Applications. Ordering Information. CWDM XFP Single-Mode for 10GbE/10GFC Duplex XFP Transceiver RoHS6 Compliant

SFP Series. EOLS X Series. Features. Applications. Ordering Information

40GBase LR4 QSFP+ Optical Transceivers WST-QSFP+LR4-C

XFP Series. JCxxxx-XFP-LC.S40. Features. Applications. Ordering Information

XFP Series. JCxxxx-XFP-LC.S80. Features. Applications. Ordering Information

SFP Series. Single-Mode 1310nm for GE, STM1/STM4/STM16, FC/2XFC Duplex SFP Transceiver RoHS6 Compliant. Distance * (note2) Interface Temp. DDMI.

DWDM SFP+ single-mode Transceiver, With Diagnostic Monitoring Multi-rate 16x / 8x / 4x Fibre Channel Duplex SFP+ Transceiver, RoHS 6 Compliant

Arista QSFP-40G-PLR4. Part Number: QSFP-40G-PLR4 QSFP-40G-PLR4 OVERVIEW PRODUCT FEATURES APPLICATIONS FUNCTIONAL DIAGRAM.

Fiber Channel Links Standard: 0 ~+70 Industrial: -40 ~+85 Compliant with GBIC Specification Rev. 5.5

SFP+ Series EOLP M-I. Features. Applications. Ordering information

QSFP Gbps QSFP28 PSM4 Optical Transceiver Module. Features

CFORTH-QSFP/4SFP+-CUxM Specifications Rev. D00C

MODULETEK DAC-QSFP10-QSFP10-A-M-xxAWG-aa.aaM-C0C0C QSFP+ to 4 SFP+ Active Copper Cable Assembly. DAC-QSFP10-QSFP10-A-M-xxAWG-aa.

SFF Series. EOLF Series. Features. Applications. Ordering Information. Multi-Mode 850nm 1250Mbps Duplex SFF Transceiver RoHS6 Compliant

DATASHEET 4.1. QSFP, 40GBase-LR, CWDM nm, SM, DDM, 6.0dB, 10km, LC

SFP Series EOLS X. Features. Applications. Ordering Information

Arista 40GBASE-XSR4-AR. Part Number: 40GBASE-XSR4-AR 40GBASE-XSR4-AR OVERVIEW APPLICATIONS PRODUCT FEATURES. FluxLight, Inc

100Gbs QSFP28 PSM4 Optical Transceiver Module WT-QSFP28-PSM4

PRE-QSFP28-SR4 100Gb/s QSFP28 Optical Transceiver, 100m

T Q S Q 1 4 H 9 J 8 2

SO-QSFP28-SR4. QSFP, 100GBASE-SR, 850nm, MM, MPO OVERVIEW PRODUCT FEATURES APPLICATIONS ORDERING INFORMATION DATASHEET 4.

SFP+ Dual LC 10G MMF 300m 850nm Transceiver. Features. Applications. Ordering Information APPLIED OPTOELECTRONICS, INC.

100-Gbps QSFP28 SR4 Optical Transceiver Module PN: WST-QS28-SR4-C

DWDM SFP Series. DIxx-SFP-LC.S120. Features. Applications. Ordering Information

T Q S Q 7 4 H 9 J C A

GPON ONU Series. EOLF-GU5-25-P Series. Features. Applications. Ordering Information. Case Temperature. Part No. Input Output Burst-mode Interface

10GBASE-PR-D3 application CML interface logic level for Gbps data. Part No. Input Output Fiber Interface Temperature AC/10G DC/1G

SFP Series. EOLS-1348-X Series. Features. Applications. Ordering Information. Single-Mode 1310nm FC/2FC/4FC Duplex SFP Transceiver RoHS6 Compliant

40G-BASE-LR4 10km QSFP+ Optical Transceiver GTR3QP1L

Parameter Minimum Maximum Units Supply voltage V Data input voltage V Control input voltage V

SFP+ Dual LC 10G SMF 10Km 1310nm Transceiver. Features. Applications. Ordering Information APPLIED OPTOELECTRONICS, INC.

Hybrid Passive Copper 100GE QSFP28 to 4x 25GE SFP28 GQS-4P28+PC-XXXXC

Product Specification 10km Multirate QSFP+ Optical Transceiver Module FTL4C1QM1C

SFP Series. Distance * (note2) Interface Temp. DDMI

SFP+ Tunable Preliminary. EOLP-1696-TDW-23XXXN MSA Series. Features. Applications. Ordering Information

40GBd QSFP+ LR4 Optical Transceiver

Product Specification Quadwire FDR Parallel Active Optical Cable FCBN414QB1Cxx

SFP+ BIDI Series JB1270-SFP-LC.S40. Features. Applications. Ordering information

Cisco QSFP-40G-SR4. Part Number: QSFP-40G-SR4 PRODUCT FEATURES APPLICATIONS. FluxLight, Inc

40G-PSM4 QSFP+ Transceiver

SO-QSFP28-4xSFP28-AOCxM

40G-QSFP-ER4-LEG. 40Gbase QSFP+ Transceiver

DATA SHEET: Transceivers

DWDM SFP Series. Power budget* (note2) Laser

100G QSFP28 Passive Copper Cable OPQS28-T-xx-Px Datasheet

SFP+ ER TDM 1550nm 10G SMF 40km Transceiver. Features. Applications. Ordering Information APPLIED OPTOELECTRONICS, INC.

DWDM SFP+ Series DWDM EML

QSFP-40G-LR4-S-LEG. 40Gbase QSFP+ Transceiver

Arista Networks QSFP-100G-SR4-AR. Part Number: QSFP-100G-SR4-AR QSFP-100G-SR4-AR OVERVIEW PRODUCT FEATURES APPLICATIONS.

Product Specification 40GE SWDM4 QSFP+ Optical Transceiver Module FTL4S1QE1C

Applications High-speed Storage Area Networks Computer Cluster Cross-connect Custom High-speed Data Pipes

DATASHEET G Data Center Interconnect (DCI) 100G Embedded DWDM (DWDM transciever in to Ethernet switch with no OEO transponder requirement)

EOLS-1312-XXXX 1.25Gbps SFP Transceiver

QSFP, 40GBase-SR, 850nm, MM, MPO

40Gb/s QSFP+ LR4 Parallel Single Mode Optical Transceiver TR-IQ13L-N00. Product Specification

Cisco QSFP-100G-LR4-S. Part Number: QSFP-100G-LR4-S QSFP-100G-LR4-S OVERVIEW PRODUCT FEATURES APPLICATIONS. FluxLight, Inc

DWDM SFP Series. Power budget* (note2) Laser

10Gb/s 10km 1310 nm XFP Single-Mode Optical Transceiver for 10GbE / 10GFC

40G QSFP+ to 4x10G SFP+ Breakout Passive Copper Cable

CFORTH-QSFP28-100G-LR4 Specifications Rev. D00B. Product Features

F i n i s a r. Product Specification Quadwire 40 Gb/s Parallel Active Optical Cable FCBG410QB1Cxx

DWDM SFP+ Series DWDM EML DWDM EML

QSFP-100G-SR4-AR-LEG. 100Gbase QSFP28 Transceiver

DWDM SFP Series. Power budget* (note2) Laser

40Gb/s QSFP+ esr4 Optical Transceiver Module QSFP-4000-ESR4. Product Specification

DWDM SFP+ Series. EOLP XXXN series. Features. Applications. Ordering Information

Transcription:

EOLQ-1HG-C-XX-XXP Copper QSFP28 Cable QSFP28 Passive Cable Assemblies, 0.4m/1m/1.5m/2m/2.5m/3m Reach RoHS6 Compliant Features Supports 103.125Gb/s, 111.8Gb/s and 112.2Gb/s bit rates Lower Power Consumption for Single Module < 0.5W 26AWG up to 3 meters distance 30AWG up to 2.5 meters distance Power Supply: +3.3V Compatible to SFF-8665 Compatible to SFF-8636 Temperature Range: 0~ 70 RoHS6 Compliant Applications 1G Ethernet OTU4 32GFC Order Information Part No. Data rate(per lane) Length AWG Passive/Active Temp EOLQ-1HG-C-P40-30P Up to 28.05G 0.4m 30 Passive 0~ 70 EOLQ-1HG-C-01-30P Up to 28.05G 1m 30 Passive 0~ 70 EOLQ-1HG-C-1H-30P Up to 28.05G 1.5m 30 Passive 0~ 70 EOLQ-1HG-C-02-30P Up to 28.05G 2m 30 Passive 0~ 70 EOLQ-1HG-C-2H-30P Up to 28.05G 2.5m 30 Passive 0~ 70 EOLQ-1HG-C-P40-26P Up to 28.05G 0.4m 26 Passive 0~ 70 EOLQ-1HG-C-01-26P Up to 28.05G 1m 26 Passive 0~ 70 EOLQ-1HG-C-1H-26P Up to 28.05G 1.5m 26 Passive 0~ 70 EOLQ-1HG-C-02-26P Up to 28.05G 2m 26 Passive 0~ 70 EOLQ-1HG-C-2H-26P Up to 28.05G 2.5m 26 Passive 0~ 70 EOLQ-1HG-C-03-26P Up to 28.05G 3m 26 Passive 0~ 70 *The product image only for reference purpose. Page 1 of 12

Regulatory Compliance* Note1 Product Certificate Certificate Number Applicable Standard TUV R50135086 EN 60950-1:26+A11+A1+A12+A2 EN 60825-1:2014 EN 60825-2:24+A1+A2 UL E317337 UL 60950-1 CSA C22.2 No. 60950-1-07 EMC CE AE 50285865 01 EN 55022:2010 EN 55024:2010 FCC WTF14F0514417E 47 CFR PART 15 OCT., 2013 FDA / CDRH 1040.10 ROHS / 2011/65/EU Note1: The above certificate number updated to June 2014, because some certificate will be updated every year, such as FDA and ROHS. For the latest certification information, please check with Eoptolink. Product Description EOLQ-1HG-C-XX-XXP Passive Copper Cable assemblies are high-performance, cost effective I/O solutions for 1G Ethernet, OTU4 and 32GFC applications. QSFP28 copper modules allow hardware manufacturers to achieve high port density, configurability and utilization at a very low cost and to reduce power budget. Absolute Maximum Ratings* Note2 Parameter Symbol Min Typ Max Units Maximum Supply Voltage Vcc -0.5 4.0 V Storage Temperature T S -40 85 C Note2: Exceeding any one of these values may destroy the device immediately. Normal operating condition Parameter Symbol Min Typ Max Units Notes Operating Case Temperature Tc 0 70 C Supply Voltage Vcc 3.135 3.3 3.465 V Power Consumption P 0.5 W Data Rate(per channel) 28.05 Gbps Performance Specifications Electrical Parameter Symbol Min. Typ. Max Unit Notes Transmitter Differential Input Voltage VIN 5-12 mvpp Impedance Zcable 90 1 110 Ohms Page 2 of 12

QSFP28 Transceiver Electrical Pad Layout Pin Function Definitions Pin Logic Symbol Description Page 3 of 12 Plug Sequence 1 GND Ground 1 1 2 CML-I Tx2n Transmitter Inverted Data Input 3 3 CML-I Tx2p Transmitter Non-Inverted Data Input 3 4 GND Ground 1 1 5 CML-I Tx4n Transmitter Inverted Data Input 3 6 CML-I Tx4p Transmitter Non-Inverted Data Input 3 7 GND Ground 1 1 8 LVTTL-I ModSelL Module Select 3 9 LVTTL-I ResetL Module Reset 3 10 VccRx +3.3V Power Supply Receiver 2 2 11 LVCMOS- I/O SCL 2-wire serial interface clock 3 12 LVCMOS- I/O SDA 2-wire serial interface data 3 13 GND Ground 1 1 14 CML-O Rx3p Receiver Non-Inverted Data Output 3 15 CML-O Rx3n Receiver Inverted Data Output 3 16 GND Ground 1 1 17 CML-O Rx1p Receiver Non-Inverted Data Output 3 18 CML-O Rx1n Receiver Inverted Data Output 3 19 GND Ground 1 1 Notes

20 GND Ground 1 1 21 CML-O Rx2n Receiver Inverted Data Output 3 22 CML-O Rx2p Receiver Non-Inverted Data Output 3 23 GND Ground 1 1 24 CML-O Rx4n Receiver Inverted Data Output 3 25 CML-O Rx4p Receiver Non-Inverted Data Output 3 26 GND Ground 1 1 27 LVTTL-O ModPrsL Module Present 3 28 LVTTL-O IntL Interrupt 3 29 VccTx +3.3V Power supply transmitter 2 2 30 Vcc1 +3.3V Power supply 2 2 31 LVTTL-I LPMode Low Power Mode 3 32 GND Ground 1 1 33 CML-I Tx3p Transmitter Non-Inverted Data Input 3 34 CML-I Tx3n Transmitter Inverted Data Input 3 35 GND Ground 1 1 36 CML-I Tx1p Transmitter Non-Inverted Data Input 3 37 CML-I Tx1n Transmitter Inverted Data Input 3 38 GND Ground 1 1 1: GND is the symbol for signal and supply (power) common for the QSFP28 module. 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: Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. Requirements defined for the host side of the Host Edge Card Connector are listed in Table 6. Recommended host board power supply filtering is shown in Figures 3 and 4. Vcc Rx Vcc1 and Vcc Tx may be internally connected within the QSFP28 Module in any combination. The connector pins are each rated for a maximum current of 5mA. Page 4 of 12

Memory Map Copper QSFP28 Cable Page 5 of 12

EEPROM Serial ID Memory Contents EEPROM Address Lower memory Version V1.0 Data Addr Field Size (Byte) Name Of filed Description of field Coded value Hex Alarm & Warning Thresholds 0 1 Identifier Identifier QSFP28 11H 1 SFF-8636 Rev 1.5 05H Page h only;digital state of the 2 Status Status IntL 2 06H Interrupt output pin is not supported 3-21 19 Interrupt Flags Interrupt Flags H 22-33 12 Module Monitors Module Monitors H 34-81 48 Channel Monitors Channel Monitors H 82-85 4 Reserved Reserved H 86-97 12 Control Control H 98-99 2 Reserved Reserved H 1-106 7 Module and Module and Channel Channel Masks Masks H 107-118 12 Reserved Reserved H 119-122 4 Password Change Password Change Entry Area Entry Area H 123-126 4 Password Entry Area Password Entry Area H 127 1 Page Select Byte Page Select Byte H EEPROM Address Pageh Version V1.0 Field Data Name Of Size Addr filed (Byte) Description of field Coded value Hex BASE ID FIELDS 128 1 Identifier Type of serial transceiver QSFP28 11 129 1 Ext.Identifier Extended identifier of Type Power class 1 module, No Page 6 of 12

of serial transceiver CLEI code present in page 02h, No CDR in TX and RX 130 1 Connector Code for connector type No separable connector 23 131 Extended Specification 10/40G/1G Ethernet Compliance Codes are Compliance Code maintained 80 132 SONET Compliance codes 133 SAS/SATA compliance codes Gigabit Ethernet Compliant 134 codes Specification 8 Fibre Channel link compliance 135 length/transmitter Technology Fibre Channel link 136 length/transmitter Technology 137 Fibre Channel transmission media 138 Fibre Channel Speed 139 1 Encoding 140 1 BR, Nominal Extended 141 1 rateselect Compliance 142 1 Length(SMF) 143 1 Length(OM3 50um) 144 1 Length(OM2 50um) 145 1 Length(OM1 62.5 um) 146 1 Length (Copper) Code for serial encoding algorithm Nominal bit rate,units of 1 Mbits/sec. Bit Rate Exceeds 25.4G FF Tags for extended rate select compliance Link length supported for SMF fiber in km Link length supported for EBW 50/125 um fiber (OM3),units of 2m Link length supported for 50/125 um fiber (OM2),units of 1m Link length supported for 62.5/125 um fiber (OM1),units of 1m Link length of copper or active cable, units of 1m x(m) Note1 Copper cable 147 1 Device tech Device technology A0 unequalized,no Page 7 of 12

wavelength control,uncooled transmitter device,transmitter not tunable 148 E 45 149 o 6F 150 p 70 151 t 74 152 o 6F 153 l 6C 154 i 69 155 Vendor n 6E 16 Vendor name (ASCII) 156 name k 6B 157 <space> 20 158 <space> 20 159 <space> 20 160 <space> 20 161 <space> 20 162 <space> 20 163 <space> 20 164 1 Extended Extended Module codes for Module InfiniBand EDR,FDR,QDR,DDR,SDR 1F 165 QSFP28 vendor IEEE 166 3 Vendor OUI company ID 167 168 E 45 169 O 4F 170 L 4C 171 Q 51 172-2D 173 1 31 174 H 48 175 Part number provided by G 47 16 Vendor PN 176 vendor (ASCII) - 2D 177 C 43 178-2D 179 x Note1 180 x Note1 181 x Note1 182 x Note1 183 P 50 Page 8 of 12

184 Revision level for part 41 2 Vendor rev number provided by vendor A 185 (ASCII) 20 Nominal laser wavelength Note2 Fill in attenuation 186 Wave length (wavelength=value/20 in at 2.5GHz in db or Copper nm) or copper cable 2 cable attenuation in db at 2.5GHz Note2 Fill in attenuation 187 Attenuation (Adrs 186) and 5.0GHz at 5.0GHz in db (Adrs 187) Guaranteed range of laser 188 wavelength(+/- value) from Wavelength 2 nominal tolerance 189 wavelength.(wavelength Tol.=value/2 in nm) 190 1 Max case temp. 191 1 CC_BASE 192 1 Link codes 193 3 Options 194 195 Maximum case temperature in degrees C 70 46 Check code for Base ID Fields (addresses 128-190) Note3 Extended Specification Compliance Codes(See 1GBASE-CR4 0B SFF-8024) TX Input Equalization Fixed Programmable Settings;RX Output Emphasis Fixed Programmable Settings,RX Output Amplitude Fixed Programmable Settings implemented Rate Select, TX Disable,TX TX/RX CDR On/Off Fault, LOS, Warning Control;TX/RX CDR Loss indicators for:temperature, of Lock (LOL) Flag;Rx VCC, RX power, TX Bias Squelch Disable implemented;rx Squelch Disable implemented;rx Output Disable capable implemented;tx Squelch Disable implemented;tx Squelch implemented Memory page 02 provided;memory page 01 provided;rate_select Page 9 of 12

not implementde;tx_disable implemented;tx_fault signal not implemented;tx Squelch not implemented to reduce Pave;Tx Loss of Signal mplemented 196 x 197 x 198 x 199 x 2 x 201 x 202 x 203 Serial number provided by x 16 Vendor SN 204 vendor (ASCII) x 205 x 206 <space> 20 207 <space> 20 208 <space> 20 209 <space> 20 210 <space> 20 211 <space> 20 212 Year 213 Year 214 Month 215 Vendor s manufacturing Month 8 Date code 216 date code Day 217 Day 218 <Space> 20 219 <Space> 20 220 1 Indicates which types of Diagnostic diagnostic monitoring are Monitoring implemented (if any) in the Type Module. Bit 1,0 Reserved 221 1 Module does not support Indicates which optional rate selection;module Enhanced enhanced features are does not support Options implemented in the Module application select and page 01 does not exist Nominal bit rate per 222 1 BR, nominal channel,units of 250 Mbps. Complements Byte 140 25.78Gbps 67 Page 10 of 12

223 1 CC_EXT Check code for the Extended ID Fields (addresses 192-222) Note4 Vendor Specific ID Fields 224-255 32 Vendor Specific EEPROM Note 1: The value on these addresses is according to specific QSFP28 pat number. Note 2: The value on these addresses is based on length/gage. Note 3: The check code shall be the low order 8 bits of the sum of the contents of all the bytes from byte 128 to byte 190, inclusive. Note 4: The check code shall be the low order 8 bits of the sum of the contents of all the bytes from byte 192 to byte 222, inclusive. Mechanical Specifications 26AWG 30AWG Page 11 of 12

Obtaining Document You can visit our website: http://www.eoptolink.com Copper QSFP28 Cable Or contact listed at the end of the documentation to get the latest documents. Revision History Revision Initiated Review Approved Revision History Release Date V1.a V1.b Roty/ Yi.wan/Young Roty/ Yi.wan/Young Nico/Yi wan Marvin Notice: Marvin Preliminary JAN 21, 2016 Add 26AWG and Update the Power Consumption Update the product image, order info and 32GFC application; Revised the EEPROM definition and mechanical spec. MAR 28, 2016 MAR 16, 2017 Eoptolink reserves the right to make changes to or discontinue any optical link product or service identified in this publication, without notice, in order to improve design and/or performance. Applications that are described herein for any of the optical link products are for illustrative purposes only. Eoptolink makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Contact: Add: Floor 5, Building 2, No. 21 Gaopeng Avenue, High-Tech District, CHENGDU, SICHUAN 6141 P.R. CHINA Tel: (+86) 028-85122709 ext 816 & 809 Fax: (+86) 028-85121912 Postal: 6141 E-mail:sales@eoptolink.com http://www.eoptolink.com Page 12 of 12