User's Manual

Corning Optical Communications User Manual I CMA-490-AEN I Page 56
To ground PSU6
1. Use a wire-stripping tool to remove approximately 0.4 inch (10.9 mm) of the covering from the end of the grounding wire.
2. Insert the stripped end of the grounding wire into the open end of the grounding lug.
Figure 5-6. PSU6 Grounding Connection
3. Crimp the grounding wire in the barrel of the grounding lug. Verify that the ground wire is securely attached to the ground lug
by holding the ground lug and gently pulling on the ground wire.
4. Prepare the other end of the grounding wire and connect it to an appropriate grounding point at the site to ensure adequate
earth ground.
5.1.5 DC Wiring Connections
Each installed PSM supports two DC outputs (terminal block pre-inserted) with the following specifications:
• Voltage: 57 v constant
• Maximum current: 1.7 A
• Power: 100 W
To wire the DC
1. Identify the positive and negative terminals on the feed positions
as indicated on the PSU6. The wiring sequence is positive to
positive and negative to negative as shown in Figure 5-7.
2. Open the terminal block screw above the negative feed position
and then insert the exposed black wire (negative feed) into the
terminal block.
3. Torque the terminal block captive screw (above the installed wire
lead), using a ratcheting torque screwdriver. Recommended
torque is 0.51N•m.
4. Repeat for remaining positive feed (exposed red wire).
CAUTION! Secure the wires coming in from the terminal block so
that they cannot be disturbed by casual contact. For example,
use tie wraps to secure the wires to the rack.
5. Connect the DC wiring to the remote-end units (DC connections
on the remote-end side are described in the quick installation
sheet provided with each unit).
Figure 5-7. DC Wiring Connections
5.1.6 Power-up