3Com Router Command Reference Guide — V1.00Frame-format ESF, clock slave, loopback not setT3-0 12 is downFrame-format ESF, clock slave, loopback not setT3-0 13 is downFrame-format ESF, clock slave, loopback not setT3-0 14 is downFrame-format ESF, clock slave, loopback not setT3-0 15 is downFrame-format ESF, clock slave, loopback not setT3-0 16 is downFrame-format ESF, clock slave, loopback not setT3-0 17 is downFrame-format ESF, clock slave, loopback not setT3-0 18 is downFrame-format ESF, clock slave, loopback not setT3-0 19 is downFrame-format ESF, clock slave, loopback not setT3-0 20 is downFrame-format ESF, clock slave, loopback not setT3-0 21 is downFrame-format ESF, clock slave, loopback not setT3-0 22 is downFrame-format ESF, clock slave, loopback not setT3-0 23 is downFrame-format ESF, clock slave, loopback not setT3-0 24 is downFrame-format ESF, clock slave, loopback not setT3-0 25 is downFrame-format ESF, clock slave, loopback not setT3-0 26 is downFrame-format ESF, clock slave, loopback not setT3-0 27 is downFrame-format ESF, clock slave, loopback not setT3-0 28 is downFrame-format ESF, clock slave, loopback not set3.7.6 frame-format (CT3 Interface)Syntaxframe-format { c-bit | m23 }undo frame-format74