3Com Baseline 3C16470 User Manual Download Page 5

Introduction

The Baseline 10/100 Switch is supplied with two mounting 
brackets and four screws. These are used for rack-mounting the 
unit. When mounting the unit, you should take note of the 
guidelines given in “Positioning the Baseline 10/100 Switch” on 
page 3.

Rack Mounting the Units

The Baseline 10/100 Switch is 1U high and will fit a standard 
19-inch rack.

CAUTION: 

Disconnect all cables from the unit before 

continuing. Remove the self-adhesive pads from the 
underside of unit, if already fitted.

1

Place the unit the right way up on a hard, flat surface with 
the front facing towards you.

2

Locate a mounting bracket over the mounting holes on one 
side of the unit (refer to the figure following step 6).

3

Insert the two screws supplied in the mounting kit and fully 
tighten with a suitable screwdriver.

4

Repeat the two previous steps for the other side of the unit.

5

Insert the unit into the 19-inch rack and secure with suitable 
screws (not provided).

6

Reconnect all cables.

Refer to the information about LEDs given earlier in this guide to 
see if the problem can be identified and rectified. Here are some 
common problems that can occur:

Link Status LED not lit for a port that has a connection.

 

There is a problem with this connection. Check that:

„

The device being connected to is powered on and operating 
correctly.

„

The cable is connected at both ends.

„

The cable is not damaged.

„

If the connection is to a workstation, that the workstation’s 
network interface is installed and configured correctly.

All ports appear to show continual activity.

 There may be 

broadcast storms on the network. 

Remove port connections one at a time, waiting a few seconds 
between each port. If the LEDs go off after removing a port 
connection, the device that was connected to that port is 
introducing an excessive amount of broadcast frames to the 
network (some pieces of network equipment operate by sending 
out broadcast frames regularly). Refer to the documentation that 
accompanies the device for information on disabling the 
broadcast operation.

If the problem persists and the unit still does not operate 
successfully, contact your supplier with the following information 
before returning the unit:

„

Product number and serial number (printed on a label 
supplied with the unit)

„

A brief description of the fault

Related Standards

The SuperStack 3 Baseline 10/100 Switch has been designed to 
the following standards:

Environmental

Physical

Electrical

M

OUNTING

 K

IT

 I

NSTRUCTIONS

P

ROBLEM

 S

OLVING

T

ECHNICAL

 I

NFORMATION

Functional

ISO 8802-3, IEEE 802.3 (Ethernet), IEEE 802.3u (Fast 
Ethernet), IEEE 802.3x (Flow Control), IEEE 802.3d 
(Bridging) 

Safety

UL 1950, EN 60950, CSA 22.2 #950, IEC 60950

EMC Emissions

EN 55022 Class A, FCC Part 15 Subpart B Class A, 
ICES-003 Class A, VCCI Class A, AS/NZS 3548 Class A, 
CNS 13438 Class A

Immunity

EN 55024

Operating Temperature

0–40 °C (32–104 °F)

Humidity

10–95% (non-condensing)

Width

440 mm (17.3 in.)

Depth

173 mm (6.8 in.)

Height

44 mm (1.7 in.) or 1U

Weight

2.6 kg (5.8 lb)

Mounting

Free standing, or 19 in. rack mounted using the 
mounting kit supplied

Power Inlet

IEC 320

AC Line Frequency

50/60 Hz

Input Voltage

100–240 VAC

Current Rating

1 Amps (maximum)

Maximum Power 
Consumption

3C16470: 15 VA

3C16471: 20 VA

Maximum Power 
Dissipation

3C16470: 52 BTU/hr

3C16471: 68 BTU/hr

5

Summary of Contents for Baseline 3C16470

Page 1: ... be free standing or rack mounted in a wiring closet or equipment room The Baseline 10 100 Switch comes with One power cord for use with the Baseline 10 100 Switch Four self adhesive rubber pads One mounting kit The Switch is powered from the AC mains supply The Baseline 10 100 Switch provides high performance switched connections to 10 Mbps and 100 Mbps hubs servers and workstations that require ...

Page 2: ...o negotiating its speed and duplex mode half duplex or full duplex are automatically determined by the capabilities of the connected device Each port supports automatic MDI MDI X detection and can be connected to either a 10BASE T or a 100BASE TX device The Switch offers priority queuing which means all packets that are received are examined to see if they have been priority encoded If a packet ha...

Page 3: ...re cannot enter the case of the unit Air flow around the unit and through the vents in the side of the case is not restricted 3Com recommends that you provide a minimum of 25 mm 1 in clearance To prolong the operational life of your units Never stack units more than six high if free standing and ensure that cables are supported so that they do not cause the stack to fall over Do not place objects ...

Page 4: ...trique Il doit être agréé dans le pays d utilisation Bitte unbedingt vor dem Einbauen des Baseline 10 100 Switch Einheit die folgenden Sicherheitsanweisungen durchlesen WARNUNG Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen Wenn die Baseline 10 100 Switch Einheit in einer Stapel mit anderen SuperStack 3 Einheiten eingebaut werden soll muß die Baseline 10 100 Switch...

Page 5: ...nual activity There may be broadcast storms on the network Remove port connections one at a time waiting a few seconds between each port If the LEDs go off after removing a port connection the device that was connected to that port is introducing an excessive amount of broadcast frames to the network some pieces of network equipment operate by sending out broadcast frames regularly Refer to the do...

Page 6: ...rnment Printing Office Washington DC 20402 Stock No 004 000 00345 4 In order to meet FCC emissions limits this equipment must be used only with cables which comply with IEEE 802 3 CE Statement Europe This product complies with the European Low Voltage Directive 73 23 EEC and ETIC Directive 89 336 EEC as amended by European Directive 93 68 EEC CSA Statement This Class A digital apparatus meets all ...

Page 7: ...on to be environmentally friendly in all operations To uphold our policy we are committed to Establishing environmental performance standards that comply with national legislation and regulations Conserving energy materials and natural resources in all operations Reducing the waste generated by all operations Ensuring that all waste conforms to recognized environmental standards Maximizing the rec...

Page 8: ...tration frontpg pl Documentation Feedback Your suggestions are very important to us They will help make our documentation more useful to you Please e mail comments about this document to 3Com at pddtechpubs_comments 3Com com Please include the following information when commenting the document title part number shown at the bottom of this page and page number if appropriate 8 ...

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