Grass Valley VM 3000 System Controllers v.7.4 - Manual (Page 85)

Hardware Installation
2−13 VM 3000 Installation and Operating Manual
Figure 2−13. Serial−control switcher restrictions.
VM 3000
(SI 3000
cannot be
used)
Serial−control
Switcher
Serial−control
Switcher
Only one remote
switcher of a given type
can be connected to a
single VM 3000.
Physical levels cannot be duplicated on a VM 3000
(unless Logical Level Mapping [page 2−36] is used;
or, the “400” offset method [footnote on page 5−38]
is used).
Level 1
Serial−control
Switcher
Level 1
Grass Valley
Crosspoint Bus
Switcher
Only the ODD
side of a VM port
pair can be used
Serial−control
Switcher
Serial−control
Switcher