ATM Cabling E-3

ATM Cabling

When planning the installation, thoroughly inspect the present cabling to

 

determine if it meets the specifications in the cabling system or standards

 

used at the site.

 

In addition to adhering to the local standards, all cable must conform to

 

the American National Standard ATM Physical Layer Medium Dependent

 

(PMD) standard, ISO.166-1990, American National Standards Institute,

 

which defines the Physical Medium Dependent (PMD) layer of the ATM

 

network. Currently, there are two approved PMD standards: Multi-mode

 

Fiber (MMF-PMD), which is defined in ANSI standard X.3-166-1992, and

 

Single Mode Fiber (SMF-PMD), which is defined in ANSI standard

 

x.3-184-198x.

 

3Com supports multi-mode fiber (MMF-PMD) 62.5/125 µm and Category

 

one (1) single mode fiber (short reach) (SMF-PMD). When deciding

 

whether to use multi-mode or single mode fiber, determine the maximum

 

interstation distance (the distance from the CoreBuilder 7000 to any

 

potential end station):

If the maximum interstation distance is less than or equal to 2

￿kilometers (1.25 miles), use multi-mode fiber (MMF-PMD).

If the maximum interstation distance is greater than 2 kilometers (1.25 miles) and less than or equal to 14.4 kilometers (8.6 miles), use single mode fiber (short reach) (SMF-PMD).

Caring for Fiber Optic Fiber optic transceivers are sensitive optical devices that need careful Transceivers handling. The following information offers suggestions about caring for

fiber optic cable.

Dirt on the Fiber Optic Lens

If dirt collects on the fiber optic lens, you may notice that the LED for an ATM port either does not light or lights yellow. You may also notice degraded performance of that port, as indicated by a decrease in the Link Error Rate (LER) estimate for that port.

To prevent dust from collecting on the fiber optic lens, keep the dust covers on the ports at all times when they are not in use. To clean a fiber optic lens when it becomes dirty, see the section “Cleaning Dirty Fiber Optic Cables”.

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3Com DUA3700-0BAA04 manual ATM Cabling, Dirt on the Fiber Optic Lens

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.

One of the standout features of the DUA3700-0BAA04 is its support for both Ethernet and TDM (Time Division Multiplexing) technologies. This dual capability allows businesses to seamlessly integrate legacy systems with state-of-the-art IP networks, ensuring a smooth transition in upgrading communication infrastructures. The device supports a wide range of interfaces, making it suitable for diverse operational environments.

Equipped with powerful processing capabilities, the DUA3700-0BAA04 ensures high-performance operation, even under heavy loads. It employs advanced Quality of Service (QoS) mechanisms, enabling prioritization of voice and video traffic. This is crucial for maintaining call clarity and ensuring that video conferencing runs smoothly, providing users with a superior experience.

The DUA3700-0BAA04 also features robust security protocols that protect sensitive data as it traverses the network. Built-in firewalls, VPN support, and encryption technologies safeguard information against unauthorized access, making this device a reliable choice for organizations that deal with confidential data.

Another significant aspect of the 3Com DUA3700-0BAA04 is its scalability. Businesses can start with a basic configuration and expand functionalities as needed, allowing for cost-effective growth. Its modular design means that users can add or upgrade modules for additional services without replacing the entire device.

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.