Juniper PTX3000 Hardware Manual page 67

To connect DC power to an optical ILA:
1. To prevent damage to the equipment caused by static discharge, attach an ESD grounding strap to
your bare wrist, and connect the strap to an approved site ESD grounding point.
2. Ensure that the power supplies are fully inserted in the chassis and the latches are secure.
3. Ensure that the power source is turned off, the voltage across the DC power source cable leads is 0 V,
and there is no chance that the cable leads might become active during installation.
4. Locate and remove the three-position DC connectors included in the accessory kit.
5. Identify the ground, positive, and negative feed positions for the DC connector. See
Figure 25 on page 67.
6. Strip each of the three wires coming out from the DC-input power source by 7–8 mm. Do not strip
more than required, because doing so can leave the wire exposed from the DC connector after
installation.
Figure 25: Connecting the DC Power Connector
1 Positive wire
—
2 Negative wire
—
7. Insert the stripped wires into the three-position DC connector.
8. Use a ratcheting torque screwdriver to apply a torque of 4.5 lb-in. (0.5 Nm) to each of the terminal
block captive screws (see Figure 25 on page 67).
3 Ground wire
—
67