3Com 1000BASE-SX quick start

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2-Port 1000BASE-SX and 2-Port 1000BASE-LX Gigabit Ethernet Interface Modules Quick Start Guide

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Module Placement in Note the following chassis slot restrictions and recommendations when the Chassis you choose a chassis slot for a GEN Interface Module.

In the CoreBuilder 9000 7-slot chassis:

■Do not install the module in slot 7. This slot is reserved for a GEN Switch Fabric Module.

■Install the module in slot 1, 2, 3, 4, 5, or 6.

In a CoreBuilder 9000 16-slot chassis:

■Do not install the module in slot 8 or 9. These slots are reserved for GEN Switch Fabric Modules.

■To optimize backplane performance, install the module in slot 1, 2, 3, 4, 5, 6, 7, 10, 11, or 12.

■3Com recommends that you do not install the module in slot 13, 14, 15, or 16, because these slots only have one connection to the backplane and the GEN Switch Fabric Modules (see Table 2). If you install a GEN Interface Module into one of these slots, you can only use one of the module’s front panel ports. The GEN Switch Fabric Module automatically disables the second port.

Table 1 and Table 2 list the relationship between the 24 Gbps Gigabit Ethernet (GEN) Switch Fabric Module (3CB9FG24) and the interface module slots in the 7-slot chassis and the 16-slot chassis, respectively. Use the information to help select a slot for your module, as well as for administration purposes after you have completed the installation.

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Contents For the CoreBuilder 9000 Enterprise Switch Ejector handle Front Panels of the GEN Interface ModulesFDA Class 1 Laser Device ESD Safety Information Page Page Page By this module Reserved for an SFM Not applicable By this moduleReserved for an SFM Not applicable Interface Module Spring-loaded Screws GEN Interface ModuleInterface Module Spring-loaded ScrewPage Packets Port is cabled but the switch fabricLink is disabled or port is not cabled Port is receiving or transmittingConnect slot.1 Up to 550 m 1,804 ft 1000BASE-SX 3CB9LG2MC Module Cabling Requirements1000BASE-LX 3CB9LG2SC Module Cabling Requirements Up to 500 m 1,640 ftRegulatory Compliance Physical SpecificationsPower Specifications Environmental RequirementsRelated CoreBuilder Documents Page Page Hardware Year 2000 WarrantySoftware Disclaimer Obtaining Warranty ServiceWarranties Exclusive Limitation of LiabilityEMC Directive Statement Emissions Compliance Statements for Class a ProductsLOW Voltage Directive Statement Australian EMC Frameworks Statement General Approval Statement for UK
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1000BASE-SX specifications

The 3Com 1000BASE-SX is a pivotal technology in the fiber-optic networking landscape, offering high-speed data transfer capabilities that cater to various networking needs. As part of the Gigabit Ethernet standards set by IEEE 802.3, 1000BASE-SX is specifically designed for short-range applications, typically within local area networks (LANs). It utilizes multimode fiber optic cables to deliver data at speeds of up to 1 Gbps, making it ideal for environments that require efficient and fast data exchange.

One of the main features of 3Com 1000BASE-SX is its reliance on multimode fiber optic cables, which allows for the transmission of light signals with multiple paths, effectively enhancing bandwidth and distance capabilities. This technology supports distance ranges of up to 550 meters on OM2 multimode fiber and up to 300 meters on OM1 fiber, making it suitable for office buildings or campuses where networking equipment is located relatively close to one another. Given its limited range, 1000BASE-SX is best utilized in scenarios where high performance is necessary without the requirements for long-distance connections.

Another significant characteristic of the 3Com 1000BASE-SX technology is its wavelength. Operating at an 850 nm wavelength, the system utilizes vertical-cavity surface-emitting lasers (VCSELs) as a light source. VCSEL technology is favored for its efficiency and ability to provide low-cost, high-density connections, which aligns with the growing demand for robust networking solutions in modern enterprise environments.

In terms of compatibility and ease of integration, 3Com 1000BASE-SX interfaces seamlessly with Ethernet standards while also supporting various switching technologies. This versatility facilitates both the upgrade of existing networks and the construction of new, high-performance network infrastructures. Furthermore, it is backward-compatible with older Ethernet standards, allowing organizations to gradually transition to Gigabit Ethernet without the need for extensive infrastructure overhauls.

Lastly, 3Com’s adherence to industry standards ensures reliability and performance consistency across devices manufactured by different vendors, promoting interoperability. With an increasing reliance on data and the necessity for faster networking solutions, the 3Com 1000BASE-SX remains a significant choice for enterprises striving for efficiency in data traffic management and enhancing their overall network capabilities. Whether for corporate offices, educational institutions, or data centers, 3Com 1000BASE-SX offers a robust solution for the challenges of modern networking complexities.
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