IBM 8265 Nways ATM Switch, Руководство по установке

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Preparing and Installing the DC Input Power Cords
Note: The following terminal ring installation shows how you install terminal rings to the power cord. The
installer should adapt the building DC input and make the power cord connection using the
terminal rings shipped with the power supply or whatever method is necessary to meet system
installation requirements. For compatibility with the building power source, the installer chooses
which size terminals rings are to be crimped on the power cord wires.
To prepare and install the -48 Volt DC input power cords:
1. Obtain the power supply cables that you removed from the shipping boxes. The input power cables
have 3 groups of wires. Each wire is labeled with the corresponding voltage. The 2 red wires are
labeled 48VDC and the 2 black wires are labeled 0VDC.
Figure 10 shows the -48V DC input power cord.
Terminal Ring
2 Black Wires
(0 Volt Return)
2 Red Wires (-48 Volt DC)
1 Green/Yellow Ground Wire
Safety Label
Keyed-Connector
Figure 10. -48 Volt DC Input Power Cord
Note: To comply with UL requirements, the power cords must be routed through a rack or cabinet
raceway to the rack or cabinet distribution panel delivering the -48 Volt DC input power. The
cables may be routed to the back using the cable tray option of the 8265.
2. Fit the terminal rings to each wire of the power cords and tighten them with a crimping tool according
to the AMP rings size. Each wire has a terminal ring at the end.
3. Connect the cable ground wire (green/yellow) to the premises ground system.
CAUTION:
You must install the green/yellow ground wire before installing any of the red or black wires.
4. Take the 2 black wires and connect them to the positive (+) symbol on the power source (zero Volt
return).
Chapter 4. Installing Power Supplies
23