AMX AutoPatch Modula, Instruction Manual, Page: 187 / 191

Appendix E – Vertical Interval Sync (VIS)
181 Modula Instruction Manual
Cabling the VIS board
VIS Board Connectors
Each of the three BNC-type connectors on a VIS board serves a different function (FIG. 118).
P1 – Local Sync Input: This connector is designed to be connected by cable to the local sync
output (P3) of another VIS board to switch TTL-level signals. This connection allows
enclosures to be switched on command from the master enclosure.
P2 – External Sync Input: This connector accepts any of the following signal types:
NTSC composite video
Composite sync type of synchronization
RGBs group member that contains sync information
Blackburst generator
P3 – Local Sync Output: This connector is designed to be connected by cable to the local sync
input (P1) of another VIS board to switch TTL-level signals. This connection allows
enclosures to be switched on command from the master enclosure.
Single Enclosure
To send the sync to a single enclosure:
1. Attach the external sync cable to the External Sync Input (P2) connector on the VIS board
(FIG. 119).
FIG. 118
VIS board connectors
FIG. 119
Fasten external sync cable to P2 connector
P1
Local Sync Input
P2
External Sync Input
P3
Local Sync Output
+
21
+
P2
External Sync Input