3Com CM 4000 Switch User Manual


 
Configurator
Machine Control Table
5−140 CM 4000 Installation and Operating Manual
Device Name Device Type
These columns repeat the descriptions of all machines (as entered on
the Machines table, page 5−135) and machine control panels (as entered on the MPK Devices table, page
5−107).
Mnemonic
Use of this column varies according to the device type.
For machines, this entry will appear on the panel controlling the machine:
S For a serial control machine, the Mnemonic is always the same as the Device Name.
For control panels, the Mnemonic column is used only as a comment field.
Delegation
Group
This entry can be used to permanently assign a machine to a specific group of control panels. For
more information, see page 5−149.
Associated
Name
In/Out
These entries are required for the machine assignment system to function, whereby
machine control “follows” the routing switcher.
For machines, the entry in the In/Out column is always “In.” The Associated Name will be selected from a list
of all router inputs (source = Switcher Input table, page 5−48). For a discussion of Associated Name entries,
please see Assigning Machines to Control Panels starting on page 5−141.
For a CP 3000E, CP 3800, or CP 3810, the entry in the In/Out column is “Out.” The Associated Name col-
umn is left blank.
For a complete description of MC 3000 and MC 3010 entries, please see Assigning Machines to Control
Panels starting on page 5−141.
Preroll
Number of seconds needed by this machine to come up to speed following a Play command. Most
machines will lock up in one second or less; two seconds is often used as a preroll value to provide a safety
margin. This value is used by the MC 3000 Machine Control Panel.
The MC 3000 uses this setting during Mark/Search operations. When SET MARK is pressed, the present
time code is stored; when SEARCH MARK is pressed, the machine will move the tape to that point minus the
preroll value. If there is no entry to the Machine Control Devices table, a two−second preroll will be used
automatically.
For more information, see page 6−132 and Appendix E.
SATURN MASTER CONTROL SWITCHER
Saturn machine control configuration instructions are described in the Saturn Installation and Operating manual.