3M™ FED Connection
Before proceeding with an Autotest the FED must be connected at one end of the pair under test.
The 3M™ FED and FED II support both Inactive (voiceband) and Wideband Autotests. Press the On/ Off pushbutton twice on the 3M FED to transmit an ID tone on the Control pair. This can be used to identify the pair at the other end. If an ID tone is not needed, the 3M FED can be left off since it will be remotely powered up during the Autotest. Refer to the 3M FED Instruction Manual for more information.
One Pair FED or FED II Hookup
Pair 1 Ring (blue) Pair 1 Tip (blue)
Ground (green)
FED
or
FED II
Two Pair FED II Hookup
Pair 1 Ring (blue) Pair 1 Tip (blue)
Pair 2 Ring (red) Pair 2 Tip (red)
Ground (green)
FED II
Note: Always initially connect the 965DSP test leads to Pair 1 when using the FED II in two pair hookup. Do not move the test leads to Pair 2 until prompted by the 965DSP.
One Pair FED II Hookup (with isolate)
Pair 1 Ring (blue) Pair 1 Tip (blue)
Ground (green)
FED II
CO Ring (yellow) CO Tip (yellow)
Central
Office
or
Subscriber
Note: CO Tip and Ring should never be clipped together.
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