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Connecting External Devices
About Connection Cables
Observe the following points with respect to the cables used for connections.
• Never use cables with damaged or torn coverings.
• Never step on cables or subject them to undue stress.
• Never wind cables too tightly or bend them double.
Along with the points just described, also observe the following points for specific cable types.
Coaxial Cables (75 ohm, BNC connectors)
• No single cable should be longer than 100 meters.
• Use cables having connectors compliant with IEC 60169-8.
• The Canare L-5C2VS or equivalent is recommended.
Optical Cables (optical fiber, SC connectors, multi-mode, core diameter of 50/125 micro meters or 62.5/125 micro meters)
• No single cable should be longer than 2,000 meters.
• Use cables having connectors compliant with ISO/IEC 9314-3.
REAC Cables
• Ensure that the cables used for REAC connections conform to the Cat 5e (Enhanced Category 5) standard.
• No single cable should be longer than 100 meters.
• To maintain transmission quality, use of the following optional REAC cables is recommended.
100-meter cables: SC-W100S (cable only) or W100S-R (with reel)
20-meter cables: SC-W20F
* Compared to analog transmission, digital transmission of audio signals by means of REAC (Roland Ethernet Audio Communication) is extremely
resistant to external noise, but depending on the usage environment, in very rare instances, noise can occur. Selection of the wrong cable and
incorrect cable handling are especially likely to cause noise.
About REAC Connector Covers
When using a commercially available Ethernet cable to connect a REAC device, fit the included REAC connector covers onto the
REAC ports. Electromagnetic noise may be a problem if these are left unattached.
fig.fit-connector-cover.eps
Attaching a REAC connector cover is not necessary when you’re using an optional REAC cable (described above).
About Ferrite Cores
Two ferrite cores are included with the S-MADI. Attach the ferrite cores to the REAC cable being connected to the S-MADI. Clamp
each ferrite core onto the cable at a location near the plug at the end of the cable, pressing down on the ferrite core until it clicks
closed.
* When attaching a ferrite core, be careful to avoid pinching your fingers.
fig.fit-ferrite-core.eps
When connecting a REAC device, use a cable that has ferrite cores attached to it.