•
Grounding ring lug with hole sized for an M5 screw
•
M5 nut and washer (one per DC power supply, attached)
•
DC power source cables, minimum 14 AWG or as required by local code (not provided)
•
DC power ring lugs, Panduit PV12-14HDRB-2k (two per DC power supply)
•
M6 screws and washers (two per DC power supply, attached)
•
Grounding cable, use 6-AWG (13.3 mm
2
) 60
°
C wire for 24V DC (not provided)
The DC power supply has two terminals on each power supply, covered by a clear plastic cover.
Table 1: MX104 DC Power System Input Voltage
SpecificationNominal Voltage
Operating range: +18 to +30 VDC+24
Operating range: –39 to –56 VDC–48
Operating range: –39 to –72 VDC–60
1. Switch off the dedicated customer site circuit breakers. Ensure that the voltage across the DC power
source cable leads is 0 V and that there is no chance that the cable leads might become active during
installation.
2. Ground the DC power supply (see Figure 10 on page 18):
a. Remove the nut and washer from the grounding point on the power supply.
b. Secure each grounding cable lug to the grounding point with the washer and nut.
17
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