Connecting Cables To The Reac Ports - Roland S-4000S Owner's Manual

6—Using the S-4000 System

Connecting Cables to the REAC Ports

The S-4000S and S-4000H each feature two REAC ports—one labeled MAIN and the other BACKUP.
The MAIN REAC port provides the primary REAC connection.
For the primary REAC-to-REAC connection:
• Connect one end of a Cat5e crossover cable (such as the one included with S-4000 System)
to the MAIN REAC port on the S-4000S, and the other end to the MAIN REAC port on the
S-4000H.
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The BACKUP REAC port provides a redundant REAC connection in case the MAIN REAC connection
fails. This redundancy requires a second Cat5e cable.
For the redundant REAC-to-REAC connection:
• Connect one end of a second Cat5e crossover cable to the BACKUP REAC port on the S-4000S,
and the other end to the BACKUP REAC port on the S-4000H.
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If redundant operation is not required, use only the MAIN REAC ports.
For proper system operation, the REAC port on one device must be connected to the like-
named REAC port on the other device—that is, always connect MAIN to MAIN, and BACKUP to
BACKUP.
52 S-4000 Digital Snake Owner's Manual
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