7 remote mode: remote t1 line or payload loopbacks, 8 ansi t1.403 remote t1 llb, 9 illustrations of loops and self-tests – Carrier Access Access Bank II SNMP User Manual
Page 126: 8 ansi t1.403 remote t1 llb -5, 1 ansi t1.403 remote payload loopback -5, 3 protocols