> Terminates up to 2 T1 lines providing DSX-1 or DS1 interface to the network. > Supports up to 48 DS0s. > SF or ESF data framing formats. > AMI or B8ZS line code formats. > Local and remote loopbacks. > Front panel bantam jacks for monitoring T1s. > Local, loop, or external timing modes. > Supports ANSI T1.403 in-band payload and line loopback.
