AMX AutoPatch Modula, Инструкция по эксплуатации, Страница: 173 / 191

Appendix C – Paralleling Inputs
167 Modula Instruction Manual
Appendix C – Paralleling Inputs
Important: The system must have been ordered to handle parallel inputs to use these directions.
This appendix contains directions for cabling and operating a paralleled system that switches composite
(or Y/c) over BNC connectors. Parallel systems
must contain standard video high impedance (Hi-Z) input
boards (either FG1034-461 or FG1034-458) in all enclosures except for the last enclosure, which must
contain standard video (not Hi-Z) input boards. For more information, contact an AMX representative.
A Modula’s switching capability can be expanded by paralleling (“splitting”) inputs. Normally the input
connectors on one enclosure can only route a signal to the output connectors on that enclosure. However,
connecting an input on one enclosure to the corresponding input on a second enclosure with a
T-connector allows a source signal to be routed to all available output connectors for that signal on both
enclosures. By paralleling inputs on two enclosures each with a 32x32 configuration, the set of configuration
possibilities expands to 32x64.
The source signal must be routed on different levels for each enclosure; therefore, the system must be
configured in XNConnect so the enclosures switch on different virtual matrices (levels); see page 168.
Note: Splitting a signal more than four times requires a distribution amplifier.
Cabling Parallel Inputs
Caution: When video signal inputs are paralleled, all enclosures must contain standard video high
impedance (Hi-Z) input boards except for the last enclosure, which must contain standard video
(not Hi-Z) input boards.
To parallel inputs between two enclosures:
Important: Signal cable B in FIG. 107 needs to be approximately 3.0 in. (7.6 cm) long.
Signal cable C should be just long enough to reach from enclosure to enclosure.
1. Fasten a T-connector to signal cable A, which comes from the source device.
2.
Fasten one end of signal cable B to the T-Connector.
Fasten the other end of signal cable B to the input on the first enclosure.
3. Fasten signal cable C to the open end of the T-Connector.
Fasten the other end of signal cable C to the corresponding input on the second enclosure.
The source is ready to switch to outputs on both enclosures (for information on controlling parallel
inputs, see page 169).
FIG. 107
Connecting two inputs for parallel control
Source signal cable
T-Connector
Input boards in first enclosure must be
standard video high impedance (Hi-Z)
Input boards in last enclosure must be
standard video (not Hi-Z)
A
B
C