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3Com OfficeConnect User Manual
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3Com OfficeConnect User Manual

Ethernet hub 16c
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Ethernet Hub 16C (3C16702A)
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  • Page 1 OfficeConnect ® Ethernet Hub 16C (3C16702A) User Guide...
  • Page 2 3Com Technologies reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Please e-mail any comments about this document to 3Com at: Technologies to provide notification of such revision or change.

  • Page 3: Table Of Contents

    Hub Connections 8 Stacking the Units together 9 The Rubber Feet 9 The Stacking Clip 9 Positioning Your OfficeConnect Hub 10 Securing the OfficeConnect Hub 10 Connecting Workstations and Other Equipment to Your Hub 11 Connecting OfficeConnect Hubs Together 11...

  • Page 5: Introduction

    ‘OfficeConnect hub’. If you need to connect more workstations, simply use the A single OfficeConnect hub allows you to create a small stacking clip to connect another OfficeConnect hub to form network with up to sixteen workstations, as shown in a stack (each hub is a single repeater).

  • Page 6: Creating Your Network

    If yellow, the port has partitioned due to a operation. fault on that segment. The Coaxial port LED can only be yellow 3C16702A Port Status Network Utilization Alert Power Collision 16 COAX 6% 12% 25% 50% 80% Green = OK, Yellow = Partitioned OfficeConnect Ethernet Hub 16C...

  • Page 7: Ethernet Hub 16C-Rear

    Ethernet Hub 16C—Rear...

  • Page 8: Before You Start

    ‘x’. This denotes a crossover in the port’s internal wiring, for example 1x, 2x, 3x.. Product Registration You can now register your OfficeConnect hub on the 3Com Hub Connections web site and receive up-to-date information on your If you have additional hubs you want to connect using product.

  • Page 9: Stacking The Units Together

    Piece Fastening Piece The Stacking Clip The stacking clip allows you to stack your OfficeConnect units together neatly and securely. CAUTION: You can stack up to a maximum of four units. Smaller units must be stacked on top. To remove the clip: To fit the clip: Remove the top unit together with the clip.

  • Page 10: Positioning Your Officeconnect Hub

    Securing the OfficeConnect Hub When installing your OfficeConnect hub, ensure: There are two slots on the underside of the OfficeConnect hub which can be used for wall mounting. It is It is out of direct sunlight and away from sources of ■...

  • Page 11: Connecting Workstations And Other Equipment To Your Hub

    Connecting OfficeConnect Hubs Together You can increase the number of workstations that can AVERTISSEMENT: Veuillez lire attentivement la connect to your network by adding more OfficeConnect section “Consignes importantes de sécurité” avant de hubs. You can use either 10BASE-T or 10BASE-2 (Coaxial) to mettre en route.

  • Page 12: Connecting Hubs Using 10Base-2 (Coaxial)

    Connecting Hubs Using 10BASE-2 ( Figure 3 Correct Hub Connections Using 10BASE-2 (Coaxial) Coaxial When using 10BASE-2 (Coaxial) cable, it is important that both ends of the segment are properly terminated with 50 Ohm terminators (end pieces). Only use 50 Ohm 10BASE-2 (Coaxial) cables and use a ‘Y’...

  • Page 13: Connecting Hubs Using 10Base-T

    Connecting Hubs Using 10BASE-T Figure 4 Correct Hub Connections Using 10BASE-T You can connect hubs together with 10BASE-T in a number of ways, but for simplicity we recommend the following method: Starting from the bottom, connect port 16 of the lower P O W hub to port 15 of the hub immediately above.

  • Page 14: Problem Solving

    ROBLEM OLVING The OfficeConnect hub has been designed to aid you when Link between two OfficeConnect hubs not working. detecting and solving possible problems with your network. Check your hub connections; follow the information given in These problems are rarely serious; the cause is usually a “Connecting OfficeConnect Hubs Together”...
  • Page 15 Refer to Figure 5 below to compare the wiring of a straight-through and a crossover cable. Figure 5 Straight-through Cable/Crossover Cable Normal Uplink Normal Normal port port port port...

  • Page 16: Networking Terminology

    10BASE-T is the name given to the Ethernet protocol that runs over Twisted Pair (TP) cable at 10Mbps. The Collisions are a part of normal Ethernet operation and OfficeConnect hub uses RJ-45 type connectors for occur if two or more devices (pieces of network equipment) connecting your TP network attempt to transmit at the same time.

  • Page 17: Dimensions And Standards

    IMENSIONS AND TANDARDS Dimensions and Operating Conditions Standards Functional: ISO 8802/3 6.73 W IEEE 802.3 228 mm (9.12 in.) 23.00 BThU/hr power requirement Safety: UL 1950 54.6 mm 0 to 40°C (32 to 105°F) EN 60950 (2.1 in.) operating CSA 22.2 #950 temperature IEC 60950 185.4 mm (7.3 in.)

  • Page 18: Environmental Statements

    NVIRONMENTAL TATEMENTS It is the policy of 3Com Corporation to be End Of Life Statement environmentally-friendly in all operations. To uphold our 3Com processes allow for the recovery, reclamation and safe policy, we are committed to: disposal of all end-of-life electronic components.

  • Page 19: Regulatory Notices

    EGULATORY OTICES VCCI S TATEMENT FCC S TATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules, and the Canadian Department of Communications Equipment Standards entitled, “Digital Apparatus,”...
  • Page 20 Wall mounting screw hole guide 142mm (5.6in.)
  • Page 22 Part No. DUA 1670-2AAA04 Published April 2002...

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