Product specifications

Setup E1 Parameter, AIS

AIS (Alarm Indication Signal) is a method to inform the remote connection that there is a signal or sync

problem with the E1. AIS is only valid in framed mode E1, not in Unframed E1. The setting here of AIS

enabled (on) or not (off) and is for testing with AIS. When enabled, the E1 will transmit the forced AIS and it

should be confirmed at the remote device (AIS indication lit). After testing, please turn AIS back off.

For example 1: When STU-R E1 RX line is drop, STU-R sends the status to STU-C via EOC or command,

and then STU-C will send AIS (Alarm Indication Signal) to DTE while AIS function is enabled.

For example 2: When SHDSL connection drops, STU-R and STU-C both send AIS (Alarm Indication Signal)

to DTE in the same time while AIS function is enabled.