BlackDiamond 110 VAC Power
Supply Installation Note
Overview
This installation note describes the BlackDiamond™ 110 VAC Power Supplies. The
BlackDiamond 6808 chassis accommodates two power supplies. There are three types of power
supplies available: 110 VAC, 220 VAC, and -48 VDC. Both installed power supplies must be of
the same type. This document describes 110 VAC power supply installation only.
Caution: Service to BlackDiamond 6800 series power supplies should be performed by
trained service personnel only. Before installing or removing any components of the
system, or before carrying out any maintenance procedures, read the safety information
provided in Appendix A of the BlackDiamond Hardware Installation Guide.
These power supplies are fully fault tolerant and load-sharing. If one power supply fails, the
other power supply will provide sufficient power to operate a fully loaded chassis. The
specifications for the power supply are listed in Table 1.
Table 1: BlackDiamond 110 VAC power supply specifications
Characteristic
Specification
AC power supply input socket
IEC part number 320 C19
AC power source socket
NEMA L5-20R
Input power
2700 W, 110 VAC, 25 A
Output power
2000 W
The BlackDiamond chassis power supply slot is designed for standard 5" x 8" footprint power
supplies. Each power supply contains a cooling fan. Air enters from the front vents on the
power supply and exits from the rear vents of the chassis, as illustrated in Figure 1. This airflow
is independent of the airflow through the modules.
Part Number: 121032-00 Rev 01
1
Overview
1
2
3
4
A
B
50015
50015
5
6
7
8
Air flow
through
chassis
POWER
POWER
DC OUT
AC IN
50020
Air flow through
power supplies
DC OUT
AC IN
50020
BD_025
Figure 1: Airflow through the BlackDiamond chassis
Caution: If a power supply’s fans fail, immediately remove the power supply from the
chassis. Because the power supply airflow is separate from the chassis airflow, as
illustrated in Figure 1, heated air from the power supply will not be sufficiently vented if
the power supply fans fail.
The 110 VAC power supply has two IEC 320 C19 inputs on the front of the power supply. Both
power cords must be connected for the power supply to operate properly.
Caution: Each power cord must be connected to a dedicated 20 A 110 VAC outlet. This
outlet cannot be shared by other devices.
BlackDiamond 110 VAC Power Supply Installation Note
2
Installing the Power Supplies
Power supplies slide in from the front of the chassis, as illustrated in Figure 2.
POWER
DC OUT
AC IN
POWER
50020
DC OUT
AC IN
50020
BD_026
Figure 2: Sliding the power supply into the chassis
The front of the power supply has a handle with a cam lever mechanism for both insertion and
removal of the power supply. The front panel also provides status LEDs. Table 2 describes the
LED behavior on the 110 VAC power supplies.
Table 2: 110 VAC Power Supply LEDs
LED
Color
Indicates
AC In
Green
Powered using both inputs
Amber
Powered using only one input, or input voltage is less than 90 V
Off
No input power
Green
All DC outputs are operational
Amber
One or more DC outputs failed, or one AC input failed
Off
No power
DC Out
Each power supply has 5 DC outputs that connect to the chassis backplane. These 5 outputs
provide power for the entire chassis.
Installing the Power Supplies
To remove a power supply, follow these steps:
1 Remove the two AC power supply cords from the power supply and retention clips.
2 Unscrew the power supply using a #1 Phillips-head screwdriver.
3 Disengage the power supply by pushing down on the locking handle and rotating the
handle out and down, as shown in Figure 3.
BlackDiamond 110 VAC Power Supply Installation Note
3
Installing the Power Supplies
POWER
DC OUT
AC IN
POWER
50020
DC OUT
AC IN
50020
BD_026
Figure 3: BlackDiamond 110 VAC power supplies
4 Slide the power supply out of the chassis while supporting it from the bottom.
Caution: The power supply weighs approximately 30 pounds (14 kg).
To install a power supply, follow these steps:
1 Ensure that the replacement power supply is right-side up, and the locking handle is open.
2 Slide the power supply into the bay.
3 Secure the power supply by rotating the locking handle up until it clicks in place.
4 Tighten the screws using a #1 Phillips-head screwdriver.
5 Attach the AC power cords.
While hot-inserting a second power supply, ignore the LED behavior and status
indication from both power supplies until the power supply is fully seated and secured.
There will not be any interruption in the functionality of the system.
BlackDiamond 110 VAC Power Supply Installation Note
4