Unit is used and in excellent condition with minor signs of previous use. JDSU T-BERD 4000 Handheld 1310/1550nm OTDR Testing 4126 MA Module. The T-BERD 4000 is a small, compact and handheld test platform designed for all phases of the network lifecycle, from the installation to the maintenance of Access/FTTx networks and triple-play services.
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