MM, I would prefer that: UI Unit Interval. 1 UI is the inverse of the data rate frequency, for example 1 UI of a channel operating at 10 Gb/s is 100 ps. UI parameter values are unitless. The parameter may take on either floating point or integer values. Be changed to UI Unit Interval. 1 UI is the inverse of the data rate frequency, for example 1 UI of a channel operating at 10 Gb/s is 100 ps. UI parameter values are in units of 1 UI. If UI is 100ps as in this example, then if the value of a UI parameter is .01, the used value of the parameter will be 1ps. The parameter may take on either floating point or integer values. I do not know why you added the following: Composite of two Gaussian data sets. Two separate means are defined, but with a common sigma for each. Both mean entries and the sigma entry are floating point values and are assumed to be in units of UI when declared as Type UI. When declared as Type Float and used for a Model_Specific parameter, no units are assumed. Reserved_Parameters may define units for Dual-Dirac values declared as Type Float, as detailed below. Walter From: ibis-editorial-bounce@xxxxxxxxxxxxx [mailto:ibis-editorial-bounce@xxxxxxxxxxxxx] On Behalf Of Mirmak, Michael Sent: Tuesday, April 17, 2012 4:32 PM To: ibis-editorial@xxxxxxxxxxxxx Subject: [ibis-editorial] Rev. 0.135 of draft reformatted IBIS 5.1 Per our discussions in the last meeting and in today's IBIS-ATM task group, please find rev. 0.135 of the draft reformatted IBIS 5.1 document. Major changes include: - Fully consistent use of line spacing and fonts - (highlighted) Clarifications on units for key AMI Parameters - Consistent usage of AMI Parameters, Reserved Parameters and Model Specific Parameters - References to "IBIS-AMI specification" removed - New text for Gaussian, DjRj and Dual-Dirac, plus associated TX and RX jitter Reserved Parameters - Additional minor fixes to some terminology - Reorganization of Section 10A general and specific rules, plus additional explanatory text on branches, leaves and root Comments are welcome. - MM