Cable Connections: Dell PowerEdge 24U Rack Installation Guide

Cable Connections: Dell^™ PowerEdge^™ 24U Rack Installation Guide

Overview • Safety Information • Connecting the Equipment

Overview

This file provides general instructions on connecting the power and data cables to the equipment in the rack.

Safety Information

When connecting equipment in the rack to a power source, Dell recommends that you follow these guidelines:

If you have installed servers or storage systems with redundant power supplies, connect each power supply to a separate dedicated service outlet. If a UPS is installed in the rack, Dell suggests that you connect one power supply in a system to a UPS connected to a dedicated circuit, and the other power supply in the system to a power strip connected to a separate dedicated circuit. To avoid a single source of failure, do not connect both power supplies in a system to the same UPS.
Do not use one dedicated service outlet to power more than two systems.

CAUTION: Ensure that the total power requirements of equipment in the rack (see Table 1, UPS Power Ratings) are distributed properly to avoid exceeding the capacity of each power strip.

	WARNING: You must plug the power input cable of the UPS or power strip into a two-pole, three-wire grounding AC power outlet. Do not use an extension cable or adapter plug.
	NOTE: The following UPS power information may vary by region.

Table 1. UPS Power Ratings

Model	Output Watts	Output VA	Output Amps at 120 VAC*	Power Factor	Plug
APC 1400 RM	950	1400	7.9-11.6	0.7	NEMA 5-15P
APC 2200 RM	1600	2200	13.3-18.3	0.7	NEMA 5-20P
APC 3000 RM	2250	3000	18.7-24.9	0.7	NEMA L5-30P IEC 309
* The power factor of a system determines how much output current is available from the UPS. If the system's power factor is greater than 0.90, use the lower output amp value for the UPS. If the system's power factor is 0.60 to 0.70, use the higher output amp value.


	NOTE: Contact your local Dell supplier if you have questions regarding the correct locking plug for your region.

Connecting the Equipment

Refer to the following sections when connecting power and data cables to the equipment in the rack.

Cable Connections for the Switch Box

Follow these steps to connect the switch box to the servers in the rack:

Connect the cables leading from the keyboard, mouse, and monitor to the switch box's back panel (see Figure 1, Back-Panel Connections for the Switch Box).

Figure 1. Back-Panel Connections for the Switch Box

Fig4-05.gif (11823 bytes)

1	video connector
2	keyboard connector
3	mouse connector
4	video, keyboard, and mouse connectors for up to eight systems

Table 2. Back-Panel Connections for the Switch Box

Video	One 15-pin connector
PS/2-style keyboard	nine 6-pin mini-DIN
PS/2-compatible mouse	nine 6-pin mini-DIN

For each server in the rack, connect the server-to-switch-box interface cables to the appropriate keyboard, mouse, and video cable connectors on the server's back panel and the switch box's back panel.
The keyboard cable is marked with a red or purple arrow, whereas the mouse cable is marked with black or green arrows.
Connect the switch-box power cable to a power source in the rack.

Cable Connections for the UPS

Figure 2. Typical UPS Back-Panel Cable Connections (APC 1400 RM Shown)

Fig4-06.gif (17360 bytes)

1	serial connectors (3)
2	output power receptacles (6)

Cable Connections for the UPS Power Management Software

If you want to use the UPS power management software, connect the serial connector on the UPS back panel to the "master" computer that will control the UPS power management features. If a UPS interface card is installed in the UPS, connect any other protected computers or storage systems to the serial connectors on the UPS interface card.

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