Miranda NV5100MC Master Control, Reference Manual

Page: 162 / 240

148 Rev 2.10 • 17 Feb 11
7. Other MC Products
Transition Lever Arm
Transition Lever Arm
The optional Transition Lever Arm (NV5128-MC-LVR) is a device with which operators can per-
form manually controlled transitions. It can be used with either the FFCP or the CFCP.
The TLA has a simple lever that swings between two limits. There are two limit indicators (LEDs).
Each tells you when the lever is at the limit. The TLA also has an ‘Enable’ button. Pressing the
enable button signals the start of a manual transition. The operator may start a transition at either
extent.
Figure 7 -4. Transition Lever Arm
Whereas a control panel’s ‘Transition’ button gives you precise and consistent transition periods,
the TLA gives you intuitive control of a transition. The transition period can be as long as you wish.
Furthermore, the TLA offers two classes of transitions:
• Normal
Normal transitions are those that can be executed with the ‘Transition’ button of a control panel
or through automation: cut, V-fade, X-Fade, cut-fade, and fade-cut.
During a normal transition using the TLA, the operator swings the lever from one extent to the
other. Reaching the second extent completes the transition.
The position of the lever between limits is analogous to (and controls) the mix of Preset and
Program as specified by the transition type in effect. For example, in a cross-fade transition,
when the lever is at the mid-point, the program/preset mix is 50/50.
• Preset Black.
Preset black (PB) transitions require a TLA and cannot be performed by automation: PB cut,
PB V-fade, PB cut-fade, and PB fade-cut.
S
PB cross-fades are undefined and therefore not supported.
During a PB transition, the operator swings the lever from one extent to the other and then back
again to the first extent. The second extent defines the midpoint of the transition. Reaching the
first extent after the second completes the transition.
Enable Button
Lever
Limit
Indicator LED
Limit
Indicator LED