Description |
ITU-T Recommendation |
IEC 60793-2-50:2015 |
TIA |
Dispersion
unshifted single-mode optical fibers |
G.652
|
|
|
G.652.B
|
B1.1
|
492CAAC
(Formerly 492CAAA) |
|
-
With low water peak |
G.652.D
|
B1.3
|
492CAAC
(Formerly 492CAAB) |
Dispersion
shifted single-mode optical fibers |
G.653
|
|
|
G.653.A
|
B2_a
|
492CAAC
(Formerly N/A) |
|
G.653.B
|
B2_b
|
492CAAC
(Formerly N/A) |
|
Cut-off
shifted single-mode optical fibers |
G.654
|
|
|
G.654.A
|
B1.2_a
|
492CAAC
(Formerly N/A) |
|
G.654.B
|
B1.2_b
|
492CAAC
(Formerly N/A) |
|
G.654.C
|
B1.2_c
|
492CAAC
(Formerly N/A) |
|
G.654.D
|
N/A
|
N/A
|
|
G.654.E
|
N/A
|
N/A
|
|
Non-zero
dispersion shifted single-mode optical fibers |
G.655
|
B4
|
(Formerly
492E000 sectional specification) |
G.655.C
|
B4_c
|
492CAAC
(Formerly N/A) |
|
G.655.D
|
B4_d
|
492CAAC
(Formerly N/A) |
|
G.655.E
|
B4_e
|
492CAAC
(Formerly N/A) |
|
Wideband
non-zero dispersion shifted single-mode optical fibers |
G.656
|
B5
|
492CAAC
(Formerly N/A) |
Bending
loss insensitive single-mode optical fibers |
G.657
|
B6
|
|
G.657.A1
|
B6_a1
|
492CAAC
(Formerly N/A) |
|
|
G.657.A2
|
B6_a2
|
492CAAC
(Formerly N/A) |
G.657.B2
|
B6_b2
|
492CAAC
(Formerly N/A) |
|
G.657.B3
|
B6_b3
|
492CAAC
|
TIA
Standards (Historical, changed as above table notes)
TIA
TIA-492C000 EN-Sectional
Specification for Class IVa Dispersion-Unshifed Single-Mode Optical
Fibers
TIA TIA-492CA00 EN-Blank Detail
Specification for Class IVa Dispersion-Unshifted Single Mode Optical
Fibers
TIA TIA-492CAAA EN-Detail
Specification for Class IVa Dispersion-Unshifted Single-Mode Optical
Fibers
TIA TIA-492CAAB EN-Detail
Specification for Class IVa Dispersion-Unshifted Single-Mode Optical
Fibers with Low Water Peak
TIA TIA-492E000 EN-Sectional
Specification for Class IVd Nonzero-Dispersion Single-Mode Optical
Fibers for the 1550 nm Window
TIA TIA-492EA00 EN-Blank Detail
Specification for Class IVd Nonzero-Dispersion Single-Mode Optical Fiber
for the 1550 nm Window
TIA TR-42 specifies singlemode fiber optic cable for premises applications. OS1 or OS2 fiber for outdoor or indoor/outdoor applications is specified for a maximum attenuation of 0.5 dB/km at either 1310 05 1550 nm. For indoor applications, OS1 or OS2 fiber is specified for a maximum attenuation of 1.0 dB/km at either 1310 05 1550 nm.
Multimode
optical fiber IEC, ISO/IEC and TIA cross reference
Description |
ISO/IEC 11801-1:2017 |
IEC 60793-2-10:2019 |
TIA |
50-μm core diameter/125-μm cladding diameter
graded-index multimode optical fibers |
OM2 |
A1-OM2 (Formerly A1a.1) |
492AAAF (Formerly 492AAAB) |
850-nm
laser-optimized, 50-μm core diameter/125-μm cladding diameter
graded- index multimode |
OM3 |
A1-OM3 (Formerly Type
A1a.2 ) |
492AAAF (Formerly 492AAAC) |
850-nm
laser-optimized, 50-μm core diameter/125-μm cladding diameter
graded- index multimode optical fibers suitable for
manufacturing OM4 cabled optical fiber |
OM4 |
A1-OM4 (Formerly Type
A1a.3) |
492AAAF (Formerly 492AAAD) |
50-μm core diameter/125-μm cladding diameter
graded-index multimode optical fibers with laser-optimized
bandwidth characteristics specified for wavelength division
multiplexing |
OM5 |
A1-OM5 (Formerly Type
A1a.4 ) |
492AAAF (Formerly 492AAAE) |
62.5-μm core diameter/125-μm cladding diameter
graded-index multimode optical fibers |
OM1 |
A1-OM1 (Formerly A1b
) |
492AAAF (Formerly 492AAAA) |
100-μm core diameter/140-μm cladding diameter
graded-index multimode optical fibers |
NA |
A1d |
NA |
OM1 is legacy 62.5/125 micron multimode fiber standardized for data by IBM in the mid 1980s, adopted by FDDI in the late 1980s and standardized for TIA-568 in the early versions of the premises cabling standard.
OM2 is legacy 50/125 micron multimode fiber standardized for data for gigabit multimode networks in the late 1990s in TIA-568.
OM3 and OM4 are higher bandwidth versions of 50/125 fiber used for faster data networks and for longer distance links.
OM5 is a wideband 50/125
micron multimode fiber standardized for use with short
wavelength WDM with VCSEL sources in the range of 850-950nm.
Here is more information on the nomenclature and use of multimode fibers.
Color Codes
Fiber types are
identified by color codes for cable jackets and/or connectors.
More information on fiber optic color codes.
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