Chapter 7: Connecting Power
Precautions
Please read and take note of the following:
•
If you are installing an AC to DC power supply for the system, install it before connecting the
power-feed cables. Installation for the optional Clavister AC to DC power component is
described in Chapter 8,
.
•
Do not touch a power cable when power is supplied.
•
Do not place wires, screwdrivers, meter probes, oscilloscope probes, or other electrically
conducting material into contact with a live power cable or anything connected to a live
power cable.
•
Do not wear any watches, bracelets, and rings when working with a live power cable or
anything connected to a live power cable.
•
Disconnect power from both PEMs before servicing.
Warning
Failure to follow the recommendations above may cause personal injury or damage
electronic equipment. An electrical voltage of up to 75 VDC may be present at any power
connection.
Connecting Frame-ground and Power-feed Cables
These steps cover connecting the frame-ground cables and connecting the power-feed cables to
the power entry modules (PEMs) located on the back of the chassis.
1.
If you are wearing an ESD wrist strap take it off. For maximum safety, keep one hand behind
your back and use tools with properly insulated handles.
2.
Verify that the system's connection to the supply circuit will not overload the circuit's
overcurrent and supply wiring. The supply should be capable of delivering the equipment
nameplate ratings of -48V@ 40A or -60V @ 40A.
3.
Connect a frame-ground cable (with Panduit connector P/N LCD8-10A-L or equivalent) to
the frame-ground connections at the rear of the chassis:
26
