Preparing for installation 23
Planning your cabling
Select cabling according to your communication needs. Refer to the table below for recommended
cable gauge or type.
NOTICE
Table 2 gives a general description of the necessary cables. More detailed information is
found in Appendix B on page 89.
Always comply with national codes and electrical standards.
—
Table 2 Recommended cable gauge and type
Cable Gauge/Type Maximum length
Power
Copper-only wire
(stranded WITH FERRULE or solid)
AWG #18 to AWG #12
90 °C 600V, UL and CSA type
15 m (50 ft) (AWG #12)
10 m (33 ft) (AWG #18)
Ground (earthing) 10 or 6 AWG 15 m (50 ft)
RS-485 24 AWG 1220 m (4003 ft)
Alarm relays 16 or 14 AWG N/A
4–20 mA 18 AWG N/A
SCADA (Ethernet) Category 5 cable 100 m (328 ft)
OPTICAL (Ethernet) ST-ST full duplex 62.5/125 multi-mode fiber 2000 m (6562 ft)
SERVICE (Ethernet) Category 5 cable 3 m (10 ft)
USB (service port) USB key only N/A
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