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CIRCUIT RL - Remote Loopback

 CONNECTOR NOTATION: RLBK

 DIRECTION: To DCE

This signal provides a means whereby a DTE or a facility test center may check the

transmission path up to and through the remote DCE to the DTE interface and the similar return

transmission path.

CIRCUIT TM - Test Mode

 CONNECTOR NOTATION: TEST MODE

 DIRECTION: From DCE

This signal indicates to the DTE that the DCE is in a test condition. The DCE generates

this signal when it has received a local loopback or remote loopback signal from the DTE.

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Quatech MPA-100 Manual do Utilizador Página 43