Cisco Systems WS-G5487, WS-G5484, WS-G5486 Platform Maximum number of 1000BASE-ZX GBICs

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Overview

When using an LX/LH GBIC with a 62.5-micron diameter MMF, you must install a mode-conditioning patch cord (CAB-GELX-625 or equivalent) between the GBIC and the MMF cable on both the transmit and receive ends of the link in the following situations:

•Less than 328 feet (100 meters). When illuminating short lengths of MMF with an LX/LH GBIC, the mode-conditioning patch cord reduces the amount of optical power coupled into the MMF. Excessive power can saturate the LX/LH receiver causing an elevated bit error rate (BER).

•Greater than 984 feet (300 meters). When illuminating long lengths of MMF with an LX/LH GBIC, the mode-conditioning patch cord offsets the laser light to reduce the possibility of differential mode delay.

WS-G5487

The WS-G5487 GBIC (1000BASE-ZX) operates on ordinary SMF link spans of up to 70 km in length. Link spans of up to 100 km are possible using premium SMF or dispersion-shifted SMF (premium SMF has a lower attenuation per unit length than ordinary SMF; dispersion-shifted SMF has both lower attenuation per unit length and less dispersion).

The WS-G5487 GBIC must be coupled to SMF cable, which is the cable type typically used in long-haul telecommunications applications. The WS-G5487 GBIC will not operate correctly when coupled to MMF cable, and it is not intended to be used in application environments (e.g., building backbones or horizontal cabling) where MMF is frequently used.

The WS-G5487 GBIC is intended to be used as a physical medium dependent (PMD) component for Gigabit Ethernet interfaces. This GBIC operates at a signaling rate of 1250 MBaud, transmitting and receiving 8B/10B encoded data.

When you have shorter distances of SMF, you might need to insert an in-line optical attenuator in the link to avoid overloading the receiver:

•Insert a 10-dB in-line optical attenuator between the fiber-optic cable plant and the receiving port on the WS-G5487 GBIC at each end of the link whenever the fiber-optic cable span is less than 15.5 miles (25 km).

•Insert a 5-dB in-line optical attenuator between the fiber-optic cable plant and the receiving port on the WS-G5487 GBIC at each end of the link whenever the fiber-optic cable span is equal to or greater than 15.5 miles (25 km) and less than 31 miles (50 km).

Note The maximum number of installed 1000BASE-ZX GBICs is limited in each Catalyst chassis. These limits fall within the emission specifications for these products. Table 2 lists the 1000BASE-ZX GBIC limits for the different Catalyst systems.

Table 2 Maximum Number of 1000BASE-ZX (WS-G5487) GBICs Per Platform

Platform

Maximum number of 1000BASE-ZX GBICs

 

 

Catalyst 4000 family

12 to comply with EN55022 Class B and FCC Class A

 

 

Catalyst 5000 family

12 to comply with FCC Class A

 

 

Catalyst 6000 family

12 to comply with EN55022 Class B

 

24 to comply with FCC Class A

 

 

 

 

Gigabit Interface Converter Installation Note

 

 

 

 

 

 

 

78-5399-03 Rev. A0

 

 

3

 

 

 

 

 

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Contents Contents Gigabit Interface Converter Installation NoteOverview WS-G5484WS-G5486 Platform Maximum number of 1000BASE-ZX GBICs WS-G5487Port Cabling Specifications SpecificationsCore Size Modal Safety Overview Safety Overview Installing the Gbic Installing a Gbic with ClipsRequired Tools Installing a Gbic With Clips Removing a Gbic Installing a Gbic with a HandleFCC Class a Compliance Standards Compliance SpecificationsRemoving a Gbic with Clips Removing a Gbic with a HandleTranslated Safety Warnings Safety Information Referral WarningClass 1 Laser Compliance Qualified Personnel Warning Class 1 Laser Product Warning Invisible Laser Radiation Warning Product Disposal Warning Wrist Strap Warning Documentation CD-ROM Related DocumentationObtaining Documentation World Wide WebTechnical Assistance Center Obtaining Technical AssistanceDocumentation Feedback Cisco.comContacting TAC by Using the Cisco TAC Website

WS-G5484, WS-G5487, WS-G5486 specifications

Cisco Systems is a renowned leader in networking technology, offering a wide array of products designed to meet the growing demands of modern network infrastructure. Among its extensive portfolio, the WS-G5484, WS-G5486, and WS-G5487 series of line cards stand out for their robust features and exceptional performance, catering specifically to the needs of service providers and large enterprise networks.

The Cisco WS-G5484 is a 48-port 10/100 Fast Ethernet switching module. Its primary purpose is to provide high-density Ethernet connectivity in a modular switch architecture. This line card supports a variety of features such as Cisco's VLAN segmentation, enabling network administrators to efficiently segregate traffic and enhance security. It is designed for ease of use, offering plug-and-play capabilities and seamless integration into existing network infrastructures.

Meanwhile, the WS-G5486 is a more advanced line card that incorporates both Ethernet and uplink services. This model features 48 ports of 10/100/1000 Mbps Ethernet, allowing for a combination of Fast and Gigabit Ethernet connections in a single module. One of the key characteristics of the WS-G5486 is its support for Power over Ethernet (PoE), which enables it to supply power to connected devices like IP phones, wireless access points, and security cameras, thus simplifying deployment and reducing the need for additional power sources.

In addition to the above models, the WS-G5487 further enhances the capability of Cisco's switching solutions. It is designed as a 10 Gigabit Ethernet line card that features four 10G SFP+ ports. This card is particularly well-suited for high-speed data centers and backbone networks, offering exceptional bandwidth to accommodate demanding applications. The WS-G5487 supports advanced features such as Virtual Routing and Forwarding (VRF), which allows for efficient traffic management and better resource utilization.

All three line cards operate on Cisco's IOS software, which provides robust features like Layer 2 and Layer 3 switching, advanced security protocols, and comprehensive network management tools. This software backbone ensures that these devices are not only reliable but also capable of scalable solutions as network demands evolve.

Together, the WS-G5484, WS-G5486, and WS-G5487 represent a powerful trio of line cards that provide network professionals with scalable, flexible, and high-performance connectivity solutions, meeting the diverse needs of evolving network environments.
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