AMX Distribution Matrix Octaire - Manual (Page 36)

Installation and Setup
32 Octaire Instruction Manual
Cabling and Setup for Vertical Interval Sync
The Vertical Interval Sync (VIS) signal provides complete vertical interval synchronization switching
capability for an Octaire system.
The VIS function uses an external master sync signal, such as station master, blackburst, or composite
video input. When all of the source devices are genlocked to the same source, the master sync signal
synchronizes the video switching to occur during the vertical interval (pulse), eliminating vertical roll or
jitter on the monitor. The master sync signal also synchronizes all video switching for systems with
multiple enclosures.
The VIS “Sync In” connector on the primary enclosure must be attached to an external sync source
generating one of the following signal types:
Blackburst generator
NTSC composite video
The VIS (BNC) connectors “Sync In” and “Sync Out” are to the far right on the rear of the enclosure.
Cable Requirement for VIS
75 ohm coax video cable (customer provided)
Cabling a Composite Enclosure for VIS
To send the sync signal to a composite enclosure:
1. Attach the external sync cable from the signal source to the Sync In connector on the right rear of
the enclosure (FIG. 23).
2. Flip the appropriate VIS toggle switches to the left for the sync signal type being used (see page 33).
Cabling a Multi-Enclosure System for VIS
When linking sync cable from enclosure to enclosure, use the upper sync connector for the incoming
sync signal and the lower sync connector for the outgoing sync signal on each video enclosure.
To send the sync signal to a multi-enclosure System:
1. Attach a cable from the external sync source to the primary enclosure’s Sync In connector (FIG. 24
on the next page) on the right rear. (The primary enclosure is the one with the control panel.)
FIG. 23 Attach external sync cable to Sync In connector
From external sync source
Flip appropriate VIS toggle switches (see page 33)