E-8APPENDIX E: CABLING REQUIREMENTS

(500 MHz km) / 2 km = 250 MHz

The same cable would have 500 MHz of bandwidth at 1 km. A fiber cable with a bandwidth specification of 200 MHz km would have only 100 MHz of bandwidth at 2 km, which would not support ATM. In this case, another type of fiber would be required.

Single Mode Fiber The SMF-PMD standard defines the requirements for an ATM cable plant Standards to support a connection distance of up to 14.4 kilometers (8.6 miles) of

single mode fiber. The cable plant includes all fiber optic components between any two communicating ATM devices and their connectors at each end.

To determine whether the cable plant complies with the SMF-PMD standard, do the following:

1Compare the specifications of the fiber you are using to standard specifications, as described in Table E-6.

2If you mix equipment supporting Category 1 and Category 2, verify the maximum attenuation between the equipment, as described in Table E-7.

The following pages describe each of these steps and give examples.

Comparing Fiber to Compare the specifications of the fiber you are using to those in Specifications Table E-6. If the fiber does not meet the specifications, use a different

fiber or contact 3Com Technical Support.

The single mode PMD specification (SMF-PMD) defines two optical power categories: Category 1 and Category 2. These categories refer to the optical power that must be launched into the fiber by the transmitter or detected by the receiver. 3Com currently supports only Category 1 single mode fiber.

The specifications for the standard single mode fiber are listed in Table E-6. Refer to the Category 1 specifications in this table for fiber connecting 3Com equipment. For fiber used with Category 2 equipment from another vendor, refer to the Category 2 specifications.

The cable plant for a Category 2 implementation must have a minimum loss of 15.0 dB. In a Category 2 implementation, minimum cable plant losses are required to avoid saturating (blinding) the receiver.

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3Com DUA3700-0BAA04 manual MHz km / 2 km = 250 MHz

DUA3700-0BAA04 specifications

The 3Com DUA3700-0BAA04 is an advanced multi-service access device designed to cater to the needs of enterprises that require versatile connectivity solutions. As businesses evolve and expand, the demand for efficient, robust communication networks grows. The DUA3700-0BAA04 meets this need by providing a flexible architecture capable of supporting various types of network services, including data, voice, and video over IP.

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Management and troubleshooting are simplified with a user-friendly interface that provides clear diagnostics and monitoring capabilities. This allows IT teams to maintain the network effectively and respond quickly to any issues that arise.

In summary, the 3Com DUA3700-0BAA04 combines versatility, performance, and security in a single device. Its comprehensive feature set, advanced technologies, and scalability make it an ideal solution for businesses looking to optimize their communication networks as they adapt to the demands of a dynamic market. This device not only facilitates current operational requirements but also positions organizations for future growth and innovation.