GARRETT Magnum Corporate Headquarters: Garrett Communications 213 Hammond Avenue Fremont, CA 94539 Phone: 510.438.9071 Fax: 510.438.9072 Email: support@garrettcom.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) Magnum Personal Hub Models H80B and H80P Installation and User Guide Part #: 84-00037 (07/95) Trademarks UL is a registered trademark of Underwriters Laboratories Ethernet is a trademark of Xerox Corporation Velcro is a trademark of Velcro U.S.A. Personal Hub and Magnum are trademarks of Garrett Communications, Inc. Important: Magnum Personal Hubs contain no user serviceable parts.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) TABLE OF CONTENTS Page 1.0 SPECIFICATIONS ........................................................... 1 1.1. Technical Specifications .................................................... 1 1.2 Ordering Information .......................................................... 3 2.0 INTRODUCTION............................................................. 4 2.1 Inspecting the Package and Product.................................... 4 2.
MAGNUM ETHERNET CONNECTIVITY PRODUCTS "DESIGNED AND MANUFACTURED IN THE USA" Overview Garrett Communications offers the Magnum line of Ethernet LAN physical layer connectivity products with industry-standard functionality. Magnum products are available worldwide through OEMs, integrators, representatives, and international distributors.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 1.0 SPECIFICATIONS 1.1. Technical Specifications Performance: Data Rate: 10 Mbps Partitioning: Enforced after 32 consecutive collisions. Reconnect: Occurs after 512 bits error-free transmission. Maximum Ethernet Segment Lengths: 10BASE-T (Unshielded twisted pair) - 100 m (328 ft) 10BASE-T (Shielded twisted pair) - 150 m (492 ft) AUI Drop Cable - 50 m (164 ft) 10BASE2 ThinNet (BNC) - 185 m (607 ft) Network Standards: Ethernet V1.0/2.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) Switches: Up-Link: MDI-X (Media Dependent Interface Crossover) manual slide switch, converts RJ-45 port #8 from a regular (=) user segment port to a crossover (X) up-link port for on-off connection to a backbone or another cascaded hub. Internal Termination (H80B only): Allows BNC conneciton without use of "T" connector. Right position -internal termination, no "T" required. Left position -external termination via "T" connector required.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 1.2 Ordering Information Magnum Personal Hubs MODEL DESCRIPTION Magnum H80B-d Personal Hub with eight standard RJ-45 ports, one with up-link switch, plus one BNC port with internal termination switch, external 115 vac 60 Hz power supply. Magnum H80A-i Same as H80B-d, but with external 230 vac 50 Hz power supply.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 2.0 INTRODUCTION This section describes the Magnum H80B and H80P Personal Hubs, including appearance, features and possible applications. 2.1 Inspecting the Package and Product Examine the shipping container for obvious damage prior to installing this product; notify the carrier of any damage which you believe occurred during shipment or delivery.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 2.2 Product Description The Magnum H80B and H80P Personal Hubs are nine-port workplace hubs in a very compact package. They are simple to install and use in an office or lab environment, requiring no special rack cabinets or wiring closet apparatus. Personal Hubs are standard physical layer Ethernet products and operate independently of all software. Personal Hubs fit easily into the workplace environment.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) Consistent with IEEE 802.3 specifications, Personal Hubs will detect collisions, extend collision fragments, and automatically partition and re-connect individual ports in order to keep problems on one segment from causing downtime elsewhere on the network. Personal Hubs include LINK and RX LEDs, located on top of the unit above each RJ-45 port, and one LED for DC power located at the rear near the external power supply connection.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) to provide ThinNet and 10BASE-T Ethernet connectivity for local users and devices. Small independent networks built using Personal Hubs are easily expanded by adding hubs of equal or greater capacity via cascaded connections using the Up-Link switched port feature. The BNC port of the H80B provides 10BASE2 backbone connectivity if required.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 2.2.2 Magnum H80P Product Description Magnum H80P Personal Hubs provide a simple and inexpensive solution for expanding a single AUI port into an eight port hub. Since the H80P receives power through its DTE (male AUI) port, it may be installed in virtually any location, without worrying about access to a power outlet. To the server, router or other device to which it is connected, the Magnum H80P appears as a standard transceiver.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) The H80P's small size makes it very useful for situations where a temporary twisted pair network is needed, and only AUI ports are available. It is handy as a piece of test equipment that can be easily inserted into an AUI backbone to provide a test port, and then removed after the testing is done. The H80P Personal Hub takes up minimal space, uses minimal power, and is rugged enough to be carried in a coat pocket for possible emergencies.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 2.3 Features and Benefits ■ Interconnect to an Existing Ethernet Network Personal Hubs provide a manual Up-Link switch that allows one RJ-45 port to be to connect into an existing Ethernet environment (such as the central hub for the building or area) via 10BASE-T wiring. Inter-operable with other Ethernet Devices Personal Hubs are completely inter-operable with other Ethernet-compliant network devices. Each is fully compliant with IEEE 802.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 2.4 Applications Magnum H80P and H80B Personal Hubs make expansion from one to multiple ports at an existing site easy, and do not require modification to typical building wiring. Installation of the AUI powered H80P is a simple matter of connecting the rear DTE port to a standard AUI port (normally with an AUI drop cable), instantly creating eight twisted pair user ports from a single AUI port.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) The Magnum H80B offers a simple means of creating a small workgroup network from a single BNC port. The installer simply connects the existing BNC tap to the BNC port of the H80B with a standard ThinNet (10BASE2) segment. By using the internal termination of the H80B, no "tee" conector is required (unless the segment must extend beyond the H80B unit).
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) The H80B Personal Hub may also be used as a stand-alone network for a local multi-user system such as shown in the figure. The BNC port is used to support devices connected via ThinNet, while the RJ-45 ports support up to eight user devices connected via twisted pair. Full-length Ethernet segments are supported on all segments.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 3.0 Installation This section describes the installation of Magnum H80B and H80P Personal Hubs, including mounting options and cable connections. 3.1 Magnum H80B Installation The installation of a Magnum H80B Personal Hub is a very simple procedure. Locate an AC receptacle that is within six feet (2 meters) of the intended hub location and plug in the external power supply unit (provided as part of the unit).
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 3.2 Magnum H80P Installation Installation of the Magnum H80P Personal Hub is a simple procedure. Since the unit receives power from its rear DTE port, it can be located virtually anywhere. The H80P is typically connected to another Ethernet device through an AUI drop cable. For AUI connection instructions, refer to Section 3.5.2. It is also possible to connect an external power supply (refer to Spare Part Ordering Information, Section 1.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) stability if desired. When properly installed, the top-view LED status indicators will be in plain view and easy to read. Plug in two or more Ethernet cable segments, and your network is in operation. The rugged steel case of the Personal Hub will protect it from accidental damage in an office or lab workplace setting. Keep an open area around the unit so that convection cooling can occur while the unit is in operation. 3.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 3.5 Ethernet Media Connections Magnum H80Bs and H80P are equipped with eight sheilded twisted pair ports and a BNC or DTE (male AUI) port. The following sections give instructions for installing each of these media types. 3.5.1 Twisted Pair Connections 1. Using standard 10BASE-T media, insert the male plug on one end of the network cable into one of the RJ-45 female ports on the Personal Hub.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 3.5.2 AUI Connections (Model H80P only) The Magnum H80P is equipped with a rear DTE (male AUI) port which serves a dual purpose of supplying power to the unit and providing backbone connectivity. NOTE: Since the H80P derives its power from this port, this connection must be completed before the unit will function, unless an optional external power supply is being used..
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) Using the above information and steps below as a guide, attach the 10BASE5 drop-cable directly to the DTE connector on the rear of the H80P. 1. Plug the female end of the cable into the male DTE connector on the H80P. 2. Engage the AUI connector slide lock (on the cable) to insure maximum connectivity. 3. Connect the opposite end of the cable into a network AUI port and engage the port's slide locks. 3.5.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 3.6 Switchable Up-Link Feature Each H80B and H80P Personal Hub is equipped with one MDI-X Up-Link crossover switch, connected to the right-most front RJ-45 port (port 8). This switch is used to select either a normal 10BASE-T connection to a user device (switch in the "==" position) or a 10BASE-T network up-link connection to another hub or concentrator (switch in the "X" position).
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 3.7 Cascading Personal Hubs with the Up-Link Port Personal Hubs may be cascaded in order to expand networks. For example, any Personal Hub may be cascaded via the switchable up-link port into any port of another hub. Since each Personal Hub provides full repeater functionality, cascaded units can operate together even though there may be a full segment of distance between them.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 4.0 OPERATION This section details the various operational features of Magnum Personal Hubs, including a description of the LED indicators. All Personal Hubs are fully compliant with the Ethernet Version 2/IEEE 802.3 Repeater Specification for CSMA/CD 10 Mbps operation and will function accordingly. 4.1 Functional Operation, Use of LED Indicators Power On (PWR) LED: Illuminates GREEN to show functional DC power.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) Preamble Regeneration: Personal Hubs add bits to the preamble so that the output packet contains a minimum 64-bit preamble per the Ethernet standard. Collisions: When carrier is detected simultaneously on multiple ports, a jam pattern is generated on each port to create a collision condition. When a collision signal from one port is detected, it generates a jam pattern to other ports.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 5.0 TROUBLESHOOTING All Magnum Ethernet products are designed to provide reliability and consistently high performance in all network environments. The installation of Personal Hubs is a simple procedure (see Section 3.0, INSTALLATION); operation is very simple and is described in Section 4.0, OPERATION. Should problems develop during installation or operation, this section should help to locate, identify and correct such problems.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) 5.2 When Calling for Assistance Please be prepared to provide the following information. 1. A complete description of the problem, including the following points: a. The nature and duration of the problem; b. Situations when the problem occurs; c. The components involved in the problem; d. Any particular application that, when used, appears to create the problem; 2.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) Garrett Communications will carefully test and evaluate all returned products, will repair products that are under warranty at no charge, and will return the warranty-repaired units to the sender with shipping charges prepaid (see Warranty Information, Appendix A, for complete details). However, if the problem or condition causing the return cannot be duplicated by Garrett Communications, the unit will be returned as: No Problem Found.
GARRETT Magnum H80B and H80P Personal Hubs User Guide (07/95) APPENDIX A: Warranty Information Garrett Communications warrants its products to be free from defects in materials and workmanship for a period of three (3) years from the date of shipment by Garrett Communications.
