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Dell 3750W User Manual

Dell 3750W
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Additional UPS Features
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Table 8. RS-232 Communication Port Pin Assignment
Pin
Signal Name Function Direction from the UPS
1 Unused
2 Tx Transmit to external device Out
3 Rx Receive from external device In
4 Unused
5 GND Signal common (tied to chassis)
6 Unused
7 Unused
8 Unused
9 Unused
*Unused pins must be left free on all models.

Table of Contents

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Dell 3750W Specifications

General IconGeneral
BrandDell
Model3750W
CategoryPower Supply
LanguageEnglish

Summary

Safety Notes and Warnings

DANGER: Lethal Voltages

Warning about lethal voltages and service by authorized personnel only.

Safety Warnings and Precautions

Electrical Safety Instructions

Crucial safety guidelines for electrical installation and protection.

Battery Handling and Safety

Precautions for handling UPS batteries, including electrical and chemical hazards.

Rack Mounting Safety Guidelines

Safety advice for installing equipment in racks, focusing on stability and loading.

Installation Guide

Rackmount Setup and Preparation

Steps to prepare the UPS for rack mounting, including battery tray removal.

Installing the External Battery Module (EBM)

Guide on connecting an optional EBM for extended backup power.

UPS Connection, Grounding, and REPO Installation

Steps for connecting, grounding, and installing the REPO feature for remote shutdown.

Hardwiring the UPS Input Power

Requirements and procedure for hardwiring the UPS input for direct power connection.

Initial UPS Startup Procedure

Steps to perform after installation to start the UPS for the first time.

Operating the UPS

UPS Startup and Shutdown Procedures

Guide on how to safely start and stop the UPS and its output.

Starting the UPS on Battery Power

Procedure to power on the UPS using battery backup when utility power is absent.

UPS Shutdown Sequence

Steps for properly shutting down the UPS and its connected equipment.

UPS Settings and Configuration

UPS Maintenance Procedures

UPS Technical Specifications

Electrical Input and Output Specs

Detailed technical specifications for electrical input and output parameters.

Troubleshooting UPS Problems

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