Transition Networks
S4110 Install Guide
33573 Rev. B
Page 13 of 20
Cable Specifications
The physical characteristics must meet or exceed IEEE 802.3
™
specifications.
Fiber port
: SFP+, both Class-I and Class-II, 10.3125Gbps.
Cable Types
The cabling specifications are provided for reference and troubleshooting purposes.
Fiber (10GbE) Cabling
The two general types of fiber optic cables are SMF (single-mode fiber) and MMF (multi-mode fiber).
SMF
has an optical core of approximately 9 μm (microns), and has lower modal dispersion than MMF,
and can support distances of at least 10 Km and as high as 80-100 Km (Kilometers) or more, depending
on transmission speed, transceivers, etc..
MMF
has an optica
l core of either 50 μm or 62.5 μm, and it supports distances up to 600 meters,
depending on transmission speeds and transceivers.
Table 2: Fiber Cable Descriptions
Standard
Cable Type
Core
Diameter
IEEE Standard
Distance
Wavelength
OM1
Multi-mode (MMF)
62.5/125
μm
33 meters (SR)
850 / 1300 nm
OM2
Multi-mode (MMF)
50/125
μm
82 meters (SR)
850 / 1300 nm
OM3
Multi-mode (MMF)
50/125
μm
300 meters (SR)
850 / 1300 nm
OM4
Multi-mode (MMF)
50/125
μm
550 meters (SR)
850 / 1300 nm
OS1
Single mode (SMF)
9 μm
up to 10,000m
1310 / 1550 nm
OS1 SMF optics are used for distances up to 10,000m (6.2 miles) with standard transceivers and can
work at longer distances with special transceivers and switching infrastructure.
The C4110 supports:
10GBase-SR
: The most common type of fiber-optic 10GbE cable that supports an SFP+ connector with
an optical transceiver rated for 10Gb transmission speed (also known as “short reach” fiber-optic cables).
10GBase-LR
: The the “long reach” fiber optic cables that support single-mode fiber optic cables and
connectors. Provides serialized data at a line rate of 10.3125 Gbit/s.10GBASE-LR has a specified reach
of 10 kilometres (6.2 mi), but 10GBASE-LR optical modules can often manage distances of up to 25
kilometres (16 mi) with no data loss.
10GBase-ER
: The "extended reach" port type for single-mode fiber that uses 1550 nm lasers. Its Physical
Coding Sublayer 64b/66b PCS is defined in IEEE 802.3 Clause 49 and its Physical Medium Dependent
PMD in Clause 52. It delivers serialized data at a line rate of 10.3125 Gbit/s.
10GBase-ZR
: An 80 km (50 mile) range ER pluggable interface, the 80 km PHY is not specified within
the IEEE 802.3ae standard, and manufacturers have created their own specifications based on the 80 km
PHY described in the OC-192/STM-64 SDH/SONET specifications.
Note: the interface standard used is defined by the fiber module used and is transparent to the x4110.
All other standards are limiting mode (EDC disabled).
Note
: the S4110 does not support 10GBase-LX4, 10GBase-CX4, or 10GBase-LRM.
