Kidde ARIES Installation, Operation And Maintenance Manual page 78

Figure 2-37 shows the same single-channel system, but using a combination of 62.5/125 m
duplex fiber-optic media and twisted, shielded, low-capacitance wiring.
Figure 2-37. Typical Single-Channel System using Combination Twisted, Shielded and Fiber-Optic Media
August 2013 2-36 P/N 06-236530-001