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                        MUCHO.BK : cvrf-r1.ft5  Page 1  Thursday, June 26, 1997  11:37 AM
Installation and
Reference Guide
HP J3188A
HP 10Base-T Hub-16M                                                                                                                                                                                                                                                                                                                                                                                    
                    
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                        MUCHO.BK : cvrf-r1.ft5  Page 2  Thursday, June 26, 1997  11:37 AM                                                                                                                                                                                                                                                                                                                                                                                                                                                   
                    
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                        MUCHO.BK : ch0.fm5  Page i  Thursday, June 26, 1997  11:37 AM HP 10Base-T Hub-16M (J3188A)  Installation and Reference Guide                                                                                                                                                                                                                                                                                                                                                                                        
                    
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                        MUCHO.BK : ch0.fm5  Page ii  Thursday, June 26, 1997  11:37 AM © Copyright 1997  Hewlett-Packard Company Disclaimer All Rights Reserved. The information contained in this document is subject to  change without notice. This document contains information which is protected by  copyright. Reproduction, adaptation, or translation without HEWLETT-PACKARD COMPANY MAKES NO WARRANTY  prior permission is prohibited, except as allowed under the OF ANY KIND WITH REGARD TO THIS MATERIAL,  copyright laws. IN
                    
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                        MUCHO.BK : ch0.fm5  Page iii  Thursday, June 26, 1997  11:37 AM HP 10Base-T Hub-16M (J3188A) HP 10Base-T Hub-16M (J3188A) The HP 10Base-T Hub-16M (J3188A) is a multiport repeater with 16 twisted- pair ports, and one AUI port. With this hub, you can connect computers,  printers, and servers together for file sharing.  This hub is compliant with the  IEEE 802.3 Type 10Base-T standard and supports both 802.3 and Ethernet  networks.  The HP Hub-16M follows these two standards by providing these  fea
                    
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                        MUCHO.BK : ch0.fm5  Page iv  Thursday, June 26, 1997  11:37 AM HP 10Base-T Hub-16M (J3188A) Features  Network Connections • Sixteen RJ-45 (twisted-pair) ports to connect to end nodes or other devices. • A Media Dependent Interface (MDI) switch for Port 16 which allows you to connect  either an end node (MDI-X position) or to cascade a hub (MDI position) to the port,  using a “straight-through” twisted-pair cable in both cases.  Ports 1 through 15 always  are MDI-X.  Port 16 has a factory default
                    
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                        MUCHO.BK : mucho.TOC  Page v  Thursday, June 26, 1997  11:37 AM Contents 1 Installing the Hub Installing and Configuring Your Hub  . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1. Verify included parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2. Connect the external transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 3. Verify the hub operates correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 4. Mount th
                    
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                        MUCHO.BK : mucho.TOC  Page vi  Thursday, June 26, 1997  11:37 AM A Cables and Connectors Recommended Cables  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  A-1 Twisted-Pair Cable/Connector Pin-Outs  . . . . . . . . . . . . . . . . . . . . . . .  A-3 Twisted-Pair Cable for Hub-to-Computer Network Connection . . . .  A-3 RS-232 Connector and Cable Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . .  A-4 Minimum Cable Pinout for ASCII Console Connection . . 
                    
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                        MUCHO.BK : mucho.TOC  Page vii  Thursday, June 26, 1997  11:37 AM Additional Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  E-2 Examples of Backup Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  E-3 How the Backup Function Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  E-3 Configuring a Backup Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  E-5 Configuration/Installation 
                    
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                        MUCHO.BK : mucho.TOC  Page viii  Thursday, June 26, 1997  11:37 AM                                                                                                                                                                                                                                                                                                                                                                                                                                                  
                    
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                        MUCHO.BK : ch1.fm5  Page 1  Thursday, June 26, 1997  11:37 AM 1 Installing the Hub This chapter describes how to install the hub.  Topics in this chapter include ■ installing and configuring the hub ■ connecting devices to the hub ■ connecting hubs together ■ interpreting hub LEDs                                                                                                                                                                                                                           
                    
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                        MUCHO.BK : ch1.fm5  Page 2  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub   Installing and Configuring Your Hub To install and configure your hub, you must complete five basic tasks.  They  are: ■ locating and verifying the necessary parts ■ connecting an external transceiver (if necessary) ■ connecting the hub to a power source ■ mounting the hub ■ connecting the hub to your network 1. Verify included parts Each Hub-16M has the following components shi
                    
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                        Installing the Hub MUCHO.BK : ch1.fm5  Page 3  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub 1. Plug the power cord into the hub’s power cord receptacle and into an AC  (alternating current) power source.  If you are using an RPS as your  primary power source, refer to the Cisco RPS User Guide for specific  instructions. Note If your RPS is the primary power source for the hub, disconnect the AC power  cord connected directly to the hub for proper opera
                    
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                        MUCHO.BK : ch1.fm5  Page 4  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub 2. Check the LEDs on the hub’s front panel. When the hub is powered on, it  performs a power-on self test.  See the table below for the LED pattern  that occurs during the self test. On for 20 seconds, On for five  then enters seconds, then On for 20 seconds,  normal operating enters normal then enters  state. operating normal operating  state. state.   LED Pattern Port LEDs, ON f
                    
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                        Installing the Hub MUCHO.BK : ch1.fm5  Page 5  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub 4. Mount the hub The HP Hub-16M can be mounted in two ways: 1. in a rack or cabinet 2. on a table The hardware for mounting the hub is included in the accessory kit  (5064-2053) packed with the hub.  Before mounting the hub, unplug it.   See Appendix G, “Safety and Regulatory Standards,” for general mounting  precautions. Rack or Cabinet Mounting Warning The rac
                    
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                        MUCHO.BK : ch1.fm5  Page 6  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub Table Mounting  To place the hub on a table or other horizontal surface, no special tools are  necessary. Apply the four feet included in the accessory kit onto the bottom  of the hub.  Be certain to pick a sturdy table in an uncluttered area. You may  want to secure the hub’s cables to the leg of the table to prevent people from  tripping over them. 1-6 Installing the Hub        
                    
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                        Installing the Hub MUCHO.BK : ch1.fm5  Page 7  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub 5. Connect the hub to your network Reconnect the hub to either an AC power source or the RPS, depending on  which source you are using. With the hub mounted, you are now ready to  connect the hub to your network.  Typical hub connections are:  ■ hub-to-device connections. Connecting to network devices such as  computers, and printers. ■ hub-to-hub connections. C
                    
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                        MUCHO.BK : ch1.fm5  Page 8  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub Connecting Devices to the Hub To connect a device to the hub, push the RJ-45 plug into the RJ-45 jack until  the tab on the plug clicks into place. RJ-45  Connector unshielded twisted-pair cable Category 3, 4, or 5 Cat 3, 4 maximum distance: 100 meters Connecting Hubs Together Twisted-Pair Cascade Connections To expand your network, the hub can be connected to other hubs with  str
                    
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                        Installing the Hub MUCHO.BK : ch1.fm5  Page 9  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub In the following illustration, the first hub is connected to two end nodes and  to a second hub.  Note the second hub shows Port 16 connecting to a PC, using  a straight through cable with the port in the MDI-X position. Straight- Through  Cable from  Hub to PCs Hub attached to  Port 16: switch in  MDI position and  straight-through  cable is used. Up to 100 met
                    
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                        MUCHO.BK : ch1.fm5  Page 10  Thursday, June 26, 1997  11:37 AM Installing the Hub Installing and Configuring Your Hub You can connect up to 30 hubs together on a common ThinLAN segment. The  ThinLAN segment can include a computer attached to a hub at one end of the  segment that can communicate with a computer attached to another hub at  the other end of the segment. By using the BNC port on the module, the  maximum repeater hop-count increment through the entire segment is only  two. The follow