Table of Contents

Site Power Requirements and Heat Dissipation
System Ground Connection Guidelines

Parts and Required Tools
Connecting System Ground (DC-Powered Switches)

AC Power Connection Guidelines
Site-Planning Checklist

Site Planning

Warning Before you install, operate, or service the system, read the Site Preparation and Safety Guide. This guide contains important safety information you should know before working with the system.

This chapter describes how to prepare your site for the installation of the switch and contains these sections:

• Site Power Requirements and Heat Dissipation

• System Ground Connection Guidelines

• AC Power Connection Guidelines

• Site-Planning Checklist

Note   A site-planning checklist is provided in the "Site-Planning Checklist" section to help ensure that you complete all site planning activities before you install the switch.

Site Power Requirements and Heat Dissipation

Note   Catalyst 4003 switches have two slots for removable AC-input power supplies. Catalyst 4006 switches have three slots for removable AC-input power supplies. Each power supply requires a separate power circuit.

This section provides site power requirements and heat dissipation specifications for the Catalyst 4000 family switches. You should verify site power before you install the switch.

Note   Refer to the Site Preparation and Safety Guide for site power requirements, preinstallation requirements, and EMI recommendations.

Knowing the power requirements is useful for planning the power distribution system necessary to support the switches. The heat dissipation specifications are an important consideration when estimating the air-conditioning requirements for an installation. Table 2-1 provides the power requirement and heat dissipation specifications for the Catalyst 4003 and 4006 switches, supervisor engines, and switching modules.

Table 2-1: Power Requirements and Heat Dissipation Specifications

Model Number/ Module Type	AC Input Power (Watts)	DC Output Power (Watts)	Heat Dis-sipation (BTU/Hr.)	Input Current at 90 VAC (Amps)	Input Current at 120 VAC (Amps)	Input Current at 180 VAC (Amps)	Input Current at 240 VAC (Amps)
Catalyst 4003 chassis (with fans)	12	9	41	0.13	0.10	0.07	0.05
Catalyst 4006 chassis (with fans)	38	28	130	0.41	0.32	0.22	0.16
Catalyst 4003 supervisor engine (WS-X4012)	59	46	201	0.65	0.49	0.33	0.25
Catalyst 4006 supervisor engine (WS-X4013)	130	101	443	1.43	1.08	0.73	0.55
WS-X4306-GB	19	15	65	0.21	0.16	0.11	0.11
WS-X4232-GB-RJ	55	43	188	0.61	0.46	0.31	0.23
WS-X4232-RJ-XX	109	85	371	1.20	0.90	.61	0.46
WS-X4418-GB	65	51	223	0.72	0.54	0.36	0.27
WS-X4148-RJ	69	54	236	0.76	0.57	0.38	0.29
WS-X4148-RJ21	69	54	236	0.76	0.57	0.38	0.29
WS-X4412-2GB-T	120	94	408	1.30	1.00	0.67	0.51
WS-X4232-L3	120	94	408	1.30	1.00	0.67	0.51
WS-X4124-FX-MT	82	105	358	1.16	0.87	0.59	0.44
WS-X4604-GWY	142	110	482	1.56	1.18	0.79	0.60
WS-X4148-RJ45V	56	43	189	0.61	0.46	0.31	0.24
WS-X4019	5	4	18	0.06	0.04	0.03	0.02

System Ground Connection Guidelines

A grounding pad with two system (earth) grounding holes is provided in an enclosure near the power entry module (PEM) on the Catalyst 4003 switch and near the power supplies on the Catalyst 4006 switch. See Figure 2-1 for the location of the grounding holes on the Catalyst 4003 switch and Figure 2-2 for the location on the Catalyst 4006 switch.

Parts and Required Tools

To make an adequate grounding connection, you will need the following parts and tools:

• Grounding lug—The grounding lug must have two M4 screw holes. See Figure 2-1 for the location of the M4 screw holes on the Catalyst 4003 switch and Figure 2-2 for the Catalyst 4006 switch.

The grounding lugs are not available from Cisco Systems; any electrical-connector vendor can provide this lug.

• Two M4 (metric) hex-head screws with locking washers—These screws are not available from Cisco Systems; they are available from any commercial hardware vendor.

• One grounding wire (6 AWG recommended)—The length of the grounding wires depends on the location of your switch within the site and its proximity to proper grounding facilities. The grounding wire is not available from Cisco Systems; it is available from any commercial cable vendor.

• Number 2 Phillips head screwdriver.

• Crimping tool—This tool must be large enough to accommodate the girth of the grounding lug when you crimp the grounding cable into the lug.

• Wire-stripping tool.

Connecting System Ground (DC-Powered Switches)

This section describes how to connect the Catalyst 4003 and 4006 switches to earth ground. We strongly recommend that you complete this procedure before connecting system power or turning on your switch.

To attach the grounding lug and cable to the grounding pad on the Catalyst 4003 and 4006 switches, perform the following steps:

Step 2   Insert the stripped end of the grounding wire into the open end of the grounding lug (Figure 2-3).

Step 3   Use the crimping tool to secure the grounding wire in place in the grounding lug.

Step 4   Locate the grounding pad on the switch.

See Figure 2-3 for the location of the grounding pad on the Catalyst 4003 switch and Figure 2-4 for the Catalyst 4006 switch.

Step 6   Place the grounding lug against the grounding pad on the front panel of the switch and insert the two M4 screws through the locking washers and then through the holes in the grounding lug and grounding pad (Figure 2-4). Ensure that the grounding lug and the attached wire will not interfere with other switch hardware or rack equipment.

Step 7   Tighten the screws to secure the locking washers and grounding lug to the grounding pad.

Step 8   Prepare the other end of the grounding wire and connect it to an appropriate grounding point at your site to ensure adequate earth ground for the switch.

AC Power Connection Guidelines

This section provides the guidelines for connecting Catalyst 4000 family AC power supplies to the site power source.

For power connection guidelines for DC-powered systems, see the "Connecting System Ground (DC-Powered Switches)" section.

For a list of the nominal and acceptable voltage ranges for source AC power, see "Specifications."

Figure 2-5 shows the different styles of AC-input power plugs that are available for North America and various international locales.

Table 2-2 lists the AC-input power cord options and Cisco product numbers. Make sure you have the correct power cord for your site.

Site-Planning Checklist

Table 2-3 lists the site-planning activities that you should complete before you install a Catalyst 4000 family switch. Completing each activity helps to ensure a successful switch installation.

Table 2-3: Site-Planning Checklist

Task No.	Planning Activity	Verified By	Time	Date
1	Space evaluation: Space and layout Floor covering Impact and vibration Lighting Maintenance access
2	Environmental evaluation: Ambient temperature Humidity Altitude Atmospheric contamination Airflow
3	Power evaluation: Input power type Receptacle proximity to the equipment Dedicated (separate) circuits for redundant power supplies UPS for power failures
4	Grounding evaluation: Circuit breaker size
5	Cable and interface equipment evaluation: Cable type Connector type Cable distance limitations Interface equipment (transceivers)
6	EMI evaluation: Distance limitations for signaling Site wiring RFI levels

Posted: Fri Apr 13 19:16:08 PDT 2001
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