The Fiber Optic Association - Tech Topics

Specifications For Fiber Optic Networks

Per current standards and specs, maximum supportable distances and attenuation for optical fiber applications by fiber type.

Multimode Fiber Network Specifications

Application

Parameter

Multimode Fiber Type

 

 

62.5/125 μm

50/125 μm

850 nm laser-optimized
50/125 μm

850 nm laser-optimized
50/125 μm

TIA 492AAAA (OM1)

TIA 492AAAB (OM2)

TIA 492AAAC
(OM3)

TIA 492AAAD
(OM4)

 

Nominal wavelength (nm)

850

1300

850

1300

850

1300

850

1300

Ethernet

10/100BASE-SX

Channel attenuation (dB)

4.0

-

4.0

-

4.0

-

4.0

-

Supportable distance m (ft)

300
(984)

-

300
(984)

-

300
(984)

-

300
(984)

-

Ethernet

100BASE-FX

Channel attenuation (dB)

-

11.0

-

6.0

-

6.0

-

6.0

Supportable distance m (ft)

-

2000
(6560)

-

2000
(6560)

-

2000
(6560)

-

2000
(6560)

Ethernet

1000BASE-SX

Channel attenuation (dB)

2.6

-

3.6

-

4.5

-

4.8

-

Supportable distance m (ft)

275
(900)

-

550
(1804)

-

800
(2625)

-

880
(2887)

-

Ethernet

1000BASE-LX

Channel attenuation (dB)

-

2.3

-

2.3

-

2.3

-

2.3

Supportable distance m (ft)

-

550
(1804)

-

550
(1804)

-

550
(1804)

-

550
(1804)

Ethernet

10GBASE-S

Channel attenuation (dB)

2.4

-

2.3

-

2.6

-

3.1

-

Supportable distance m (ft)

33
(108)

-

82
(269)

-

300
(984)

-

450
(1476)

-

Ethernet

10GBASE-LX4

Channel attenuation (dB)

-

2.5

-

2.0

-

2.0

-

2.0

Supportable distance m (ft)

-

300
(984)

-

300
(984)

-

300
(984)

-

300
(984)

Ethernet

10GBASE-L

Channel attenuation (dB)

-

-

-

-

-

-

-

-

Supportable distance m (ft)

-

-

-

-

-

-

-

-

Ethernet

10GBASE-LRM

Channel attenuation (dB)

-

1.9

-

1.9

-

1.9

-

1.9

Supportable distance m (ft)

-

220
(720)

-

220
(720)

-

220
(720)

-

220
(720)

Ethernet

40GBASE-SR4

Channel attenuation (dB)

 

 

 

 

 

1.9

1.9

 

Supportable distance m (ft)

 

 

 

 

 

100
(328)

125
(410)

 

Ethernet

100GBASE-SR10

Channel attenuation (dB)

 

 

 

 

 

1.9

1.9

 

Supportable distance m (ft)

 

 

 

 

 

100
(328)

125
(410)

 

1G Fibre Channel

100-MX-SN-I (1062 Mbaud)

Channel attenuation (dB)

3.0

-

3.9

-

4.6

-

4.6

-

Supportable distance m (ft)

300
(984)

-

500
(1640)

-

860
(2822)

-

860
(2822)

-

2G Fibre Channel

200-MX-SN-I (2125 Mbaud)

Channel attenuation (dB)

2.1

-

2.6

-

3.3

-

3.3

-

Supportable distance m (ft)

150
(492)

-

300
(984)

-

500
(1640)

-

500
(1640)

-

4G Fibre Channel

400-MX-SN-I (4250 Mbaud)

Channel attenuation (dB)

1.8

-

2.1

-

2.9

-

3.0

-

Supportable distance m (ft)

70
(230)

-

150
(492)

-

380
(1247)

-

400
(1312)

-

10G Fibre Channel

1200-MX-SN-I (10512 Mbaud)

Channel attenuation (dB)

2.4

-

2.2

 

2.6

-

2.6

-

Supportable distance m (ft)

33
(108)

-

82
(269)

-

300
(984)

-

300
(984)

-

16G Fibre Channel

1600-MX-SN (10512 Mbaud)

Channel attenuation (dB)

-

-

1.6

-

1.9

-

1..9

-

Supportable distance m (ft)

-

-

35

(115)

-

100

(328)

-

125

(410)

-

FDDI PMD

ANSI X3.166

Channel attenuation (dB)

-

11.0

-

6.0

-

6.0

-

6.0

Supportable distance m (ft)

-

2000
(6560)

-

2000
(6560)

-

2000
(6560)

-

2000
(6560)

 

 

- means Not Applicable

 

Singlemode Fiber Network Specifications

 

Application

Parameter

Single-mode

 

 

TIA 492CAAA

(OS1)  or

TIA 492CAAB (OS2)

 

Nominal wavelength (nm)

1310

1550

Ethernet

1000BASE-LX

Channel attenuation (dB)

4.5

-

Supportable distance m (ft)

5000
(16405)

-

Ethernet

10GBASE-LX4

Channel attenuation (dB)

6.3

-

Supportable distance m (ft)

10000
(32810)

-

Ethernet

10GBASE-L

Channel attenuation (dB)

6.2

-

Supportable distance m (ft)

10000
(32810)

-

Ethernet

10GBASE-E

Channel attenuation (dB)

 

11.0

Supportable distance m (ft)

 

40000

(131240)

Ethernet

40GBASE-LR4

Channel attenuation (dB)

6.7

 

Supportable distance m (ft)

10000
(32810)

 

Ethernet

100GBASE-LR4

Channel attenuation (dB)

6.3

 

Supportable distance m (ft)

10000
(32810)

 

1G Fibre Channel

100-SM-LC-L

Channel attenuation (dB)

7.8

-

Supportable distance m (ft)

10000
(32810)

-

2G Fibre Channel

200-SM-LC-L

Channel attenuation (dB)

7.8

-

Supportable distance m (ft)

10000
(32810)

-

4G Fibre Channel

400-SM-LC-M

Channel attenuation (dB)

4.8

-

Supportable distance m (ft)

4000
(13124)

-

4G Fibre Channel

400-SM-LC-L

Channel attenuation (dB)

7.8

-

Supportable distance m (ft)

10000
(32810)

-

8G Fibre Channel

800-SM-LC-I

Channel attenuation (dB)

2.6

-

Supportable distance m (ft)

1400
(4593)

-

8G Fibre Channel

800-SM-LC-L (4250 Mbaud)

Channel attenuation (dB)

6.4

-

Supportable distance m (ft)

10000
(32810)

-

10G Fibre Channel

1200-SM-LL-L

Channel attenuation (dB)

6.0

-

Supportable distance m (ft)

10000
(32810)

-

16G Fibre Channel

1600-SM-LC-L

Channel attenuation (dB)

6.4

-

Supportable distance m (ft)

10000
(32810)

-

FDDI
SMF-PMD

ANSI X3.184

Channel attenuation (dB)

10.0

-

Supportable distance m (ft)

10000
(32810)

-

 

- means Not Applicable

 

Link Specifications for FTTx

 

 

 

Single-mode

 

Parameter

TIA 492CAAB (OS2)

Application

Nominal wavelength (nm)

1270/1310

1490

1550

EPON

(IEEE 802.3AH)

PX10 1,2

Channel attenuation (dB)

3.5

3

-

Supportable distance m (ft)

10000
(32808)

EPON

(IEEE 802.3AH)

PX20 1,2

Channel attenuation (dB)

7

6

-

Supportable distance m (ft)

20000
(65616)

10G EPON

(IEEE 802.3AV)

PR10 /PRX10 1,2

Channel attenuation (dB)

35.

3

2.5

Supportable distance m (ft)

10000
(32810)

10G EPON

(IEEE 802.3AV)

PR20 /PRX20 1,2

Channel attenuation (dB)

7

6

5

Supportable distance m (ft)

20000
(65616)

10G EPON

(IEEE 802.3AV)

PR30 /PRX30 1,2

Channel attenuation (dB)

10.5

9

 

Supportable distance m (ft)

30000
(98424)

GPON

(ITU G.983)

Class B+ 1,2

Channel attenuation (dB)

7

6

 

Supportable distance m (ft)

20000
(65616)

GPON

(ITU G.984)

Class C+ 1,2

Channel attenuation (dB)

10.5

9

 

Supportable distance m (ft)

30000
(98424)

10GPON

(ITU G.987)

Class N1 1,2

Channel attenuation (dB)

7

 

5

Supportable distance m (ft)

20000
(65616)

10GPON

(ITU G.987)

Class N2 1,2

Channel attenuation (dB)

10.5

9

 

Supportable distance m (ft)

30000
(98424)

RFOG

(SCTE IPS SP910) 1,2

Channel attenuation (dB)

7

 

5

Supportable distance m (ft)

20000
(65616)

 

- means Not Applicable

 

Specifications For Legacy Fiber Optic Networks

A listing of many fiber optic LANs and links available in the last 30 years, with basic operational specs.

 Application

Wavelength

 Max distance (m)

for fiber type

Link Margin (dB)

for fiber type

 62.5/125

50/125

SM

 62.5

50

SM

 10Base-F

 850

 2000

2000

-

12.5

7.8

-

 FOIRL

850

2000

-

-

8

-

-

T oken Ring 4/16

 850

2000

2000

-

13

8.3

-

 Demand Priority

(100VG-AnyLAN)

 850

500

 500

-

7.5

2.8

-

 Demand Priority

(100VG-AnyLAN)

 1300

2000

2000

-

7.0

2.3

 -

 100Base-FX

(Fast Ethernet)

 1300

 2000

2000

-

11

6.3

 -

 10/100Base-SX

850

 300

300

-

4.0

4.0

 -

 FDDI

 1300

 2000

2000

40,000

11.0

6.3

10-32

 FDDI (low cost)

 1300

 500

500

NA

7.0

2.3

-

 ATM 52

 1300

3000

3000

15,000

 10

5.3

7-12

 ATM 155

 1300

2000

2000

15,000

10

5.3

7-12

 ATM 155

 850(laser)

1000

1000

-

7.2

7.2

-

 ATM 622

 1300

500

500

15,000

6.0

1.3

7-12

 ATM 622

 850(laser)

 300

300

-

4.0

4.0

-

 Fibre Channel 266

 1300

 1500

1500

10,000

6.0

5.5

6-14

 Fibre Channel 266

 850(laser)

700

2000

-

12.0

12.0

-

 Fibre Channel 1062

 850(laser)

300

500

-

4.0

4.0

-

 Fibre Channel 1062

 1300

-

-

10,000

-

-

6-14

 1000Base-SX

 850(laser)

 220

550

-

3.2

3.9

-

 1000Base-LX

 1300

550

550

5000

4.0

3.5

4.7

 ESCON

1300

3000

 -

20,000

11

 -

16

 

- means Not Applicable

 

NS = Not Specified. Most LANs and links not specified to run on SM fiber have media converters available to allow them to run on SM fiber.

 

 

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