Carlon Structured Cable Management Systems Handbook - Low Res - Manual (Page 36)

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• Telephone.
• Audio/Video distribution and Home Theater
applications, at speaker level or signal level.
• Cable or Satellite incoming television signals.
• Low voltage (less than 50 volts) DC Remote
Control circuits.
• Data lines such as Ethernet, Digital Subscriber
Lines or Modem.
• Local Area Networks.
• Security Monitoring or Alarm: signal, control, and
continuity loop.
• Home automation.
Many different cable types are commonly used for
these signals. Each cable type is well-suited for certain
types of signals.
Because signal circuits are vulnerable to EMI, the user
has to consider the EMI resistance of the cable type.
The cable types below are listed in order of increasing
resistance to EMI:
• Single or Multi-conductor wire.
• 300 ohm twin-lead cable; for example, old style
television antenna wire.
• Twisted-pair wire; for example, telephone wire.
• Shielded cable; for example, audio component
interconnect cables.
• Shielded Coaxial cable; for example, 75 ohm
cable television.
• Shielded twisted-pair; for example, XLR type
microphone cable.
• Optical fiber; for example, TOS Link. Optical fiber
is immune to EMI.
110-VOLT AC CIRCUITS
Signal circuits installed in Resi-Gard allow the user to
run 110-volt AC power circuits in a separate approved
raceway and then terminate both circuits in a shared
box. Remember however, that such installations must
maintain a code-required barrier between the 110-volt
AC power circuits and signal circuits. The two circuits
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