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2.5 E
XTERNAL
C
ABLE
L
ENGTH
C
ONSIDERATIONS
Poor cabling can be the bane of a good system. Earth loops, floating inputs and outputs
and extended runs are just some of the issues to be addressed when planning an installation.
2.5.1 M
ERLIN
C
ONTROL
C
ABLE
The Merlin Control Cable connects the Merlin Console to the Engine. The cable carries
RS232, RS422 and MIDI signals and is limited to a maximum length of 30 meters, providing
correct attention is paid to signal pairing using twisted pair cable. Ensure sufficient slack is left
at the Console end to ensure movement of the Console does not cause undue stress on the
connector, or cause the connector to partially disconnect, which can damage the serial
drivers. When fitting or reconnecting the cable ensure that power is off at either the Engine or
the Console.
2.5.2 S
ONY
9-P
IN
C
ABLE
The 9-Pin cable connects the Engine to a Sony 9-pin protocol machine. The recommended
maximum length for this cable is 30 meters. Again it is recommended that the power be
switched off at one end when connecting to protect the drivers.
2.5.3 VGA C
ABLE
The Video cable connects the VGA output from the Engine to the attached Monitor. It is a
15-way shielded 50 Ohm cable with high density D-type connectors at each end. A maximum
length of 20 meters is typical.
2.5.4 A
UDIO
C
ABLE
Standard shielded audio cable is suitable.
2.5.6 D
IGITAL
A
UDIO
C
ABLES
Digital cables connected to the Engine system must be of the correct 110 Ohm impedence.