Using the Analyzer

To Connect to the System Under Test

Passive Test Connection

Some ATM switches have dedicated test access ports. All traffic from the switch is transmitted through both the regular port and the dedicated test port. Connecting the analyzer to the dedicated test port is completely non-intrusive. This type of connection never interferes with live traffic, even during set up.

Port 1

Port 2

Tx

Tx

Rx

Rx

Equipment under test

When using a non-intrusive, passive connection, the interface configuration of the analyzer is not important. The analyzer’s default interface configuration is full duplex.

T-piece Test Connection

This is a type of non-intrusive test connection that requires a T-piece or splitter already present at a cross-connect. However, it does steal some power from the traffic being transmitted over the network, so the T-piece or splitter should be as close as possible to the transmit source (where the power is at its strongest).

∙For electrical networks, using a T-piece or splitter is common practice.

∙For optical networks, special optical splitters are available. Using a T- piece is possible only if your switch or network supports it. (The splitter can draw up to 10% of the transmitted power, which affects the transmission distance.)

Analyzer the Using 2

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