Table 11 Terminal block X1 wiring
Signal Wire color Terminal
Positive Brown +
Negative Blue -
Ground Green/yellow
VIN DC +
VIN DC -
Earth
BRN
BLU
Figure 28 Terminal block X1 wiring for OPTPSU2 (DC)
11. Tighten the AC in or DC in cable gland. The cable gland is also the strain relief for the
cable, so make sure the gland holds the cable tight.
4.12
Verifying tightness of cable glands
• Adjustable wrench
To maintain cabinet tightness and provide strain relief to the cables, all cable glands on the
DGA monitor and the power supply unit must be tightened. Unused cable glands must remain
plugged.
1. Check every cable gland that is in use:
a. Pull on the cable slightly to verify that the cable is securely held by the cable gland.
b. Tighten the cable gland if the cable moves easily.
Chapter 4 – Electrical installation
63
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