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What are the different Layer 1 states of the ISDN port?

April 26, 2017different ISDN port

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What are the different Layer 1 states of the ISDN port?

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10 Posted

ISDN LAYER 1 STATES ISDN-PORT NETWORK MODE (NT1): State G1 = NT1 DEACTIVATED State G2 = NT1 PENDING ACTIVATION State G3 = NT1 ACTIVATED AND WORKING State G4 = DEACTIVATION REQUEST RECEIVED ISDN-PORT USER MODE (TE) State F1 = TE INACTIVE, NO POWERFEEDING State F2 = TE POWER FEED, WAITING FOR INFO 0 State F3 = TE DEACTIVATED State F4 = TE IS WAITING FOR SIGNAL State F5 = SIGNAL RECEIVED, SYNCRONIZATION State F6 = SYNCHRONIZED, READY FOR RECEIVING State F7 = ACTIVATED, WORKING State F8 = LOSS OF FRAME ALIGNMENT NOTE: THE ACTIVATION PROCEDURE CAN BE INITIATED BY THE TE OR THE NT. THE DEACTIVATION CAN ONLY BE INITIATED BY THE NT.