Related Manuals for GarrettCom Magnum DS 880
Summary of Contents for GarrettCom Magnum DS 880
- Page 1 Magnum DS 880 10 / 100 Dual-Speed Stackable Hubs Installation and User Guide www GarrettCom com $5.00 USD...
- Page 2 NEBS is a trademark of Telcordia Technologies UL is a registered trademark of Underwriters Laboratories GarrettCom, Magnum and Personal Switch are trademarks and Personal Hub is a registered trademark of GarrettCom, Inc. Important: The Magnum DS880 10/100 Dual Speed Stackable Hubs family contains no user serviceable parts.
- Page 3 Magnum DS880 Dual-Speed Stackable Hubs Installation and User Guide (05/01) Contacting GarrettCom, Inc Please use the mailing address, phone and fax numbers and email address listed below: GarrettCom, Inc. 47823 Westinghouse Dr. Fremont, CA 9453-7437 Phone (510) 438-9071 Fax (510) 438-9072 Website: http://www.GarrettCom.com...
- Page 4 The Magnum Line ETHERNET CONNECTIVITY PRODUCTS "DESIGNED AND MANUFACTURED IN THE USA" GarrettCom, Inc.offers the premium-quality Magnum™ line of Ethernet LAN connectivity products with industry-standard functionality and built-in fiber configurability. Magnum products are designed for use in demanding Carrier Class, Industrial Grade and OEM applications where reliability is a primary consideration.
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Page 5: Table Of Contents
PPENDIX Revisions Rev C 05/01 : Change the company name to GarrettCom, Inc. (Formerly it was Garrett Communications). There are no changes to the content of the material at this time Rev B 02/99 : Added optional 48vdc power supply addendum; Port Speed settings for 10,100 and 10/100Mbps Mode only;... -
Page 6: Specifications
100Mb: Ethernet IEEE 802.3u , 100BASE-TX 10Mb: Ethernet IEEE 802.3, 10BASE-T Auto-sensing for speed: IEEE 802.3u Packet-Processing Between Domains (internal 10/100 switch or bridge) Filtering and Forwarding Rate from 100Mb ports: 148,800 pps max Filtering and Forwarding Rate from 10Mb ports: 14,880 pps max. - Page 7 Magnum DS880-A Dual-Speed add-on unit. Switch, Manual UP-LINK : MDI-X thumb-operated slide switch, converts RJ-45 port #8 from a regular (=position) user segment port to a crossover (X position) up-link port for On/Off connection to a central hub or another cascaded hub. The up-link port #8 is auto-sensing for speed, and the up-link works the same at 10Mb or 100Mb.
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Page 8: Ordering Information
Ordering Information Magnum DS880 Dual-Speed Stackable Hubs Magnum DS880-A: Magnum DS880-B: GarrettCom reserves the right to change specifications, performance characteristics and/or model offerings without notice. www GarrettCom com Installation and User Guide (05/01) Dual-Speed 10/100 Stackable Hub with eight RJ-45 ports, each auto-sensing for 100Mb or 10Mb operation. -
Page 9: Introduction
To validate the product warranty please complete and return the enclosed Product Registration Card to GarrettCom, Inc. as soon as possible. In the event there are items missing or damaged contact your supplier. If you need to return the unit use the original shipping container. -
Page 10: Product Description
DS880-B hub or a DS880 stack, whether 100Mb or 10Mb, to talk to each other. The internal switch of the DS880-B filters and selectively forwards packets between the 10Mb and the 100Mb domains, maintaining peak performance in each domain unaffected by local traffic in the other domain. - Page 11 DS880-A units can also be used without a DS880-B, whereupon they will function as dual-speed stackable hubs. This could be desired if there is an external non-auto-sensing switch (such as the Magnum 300ES Two-Port Switch) available to interconnect the two speed domains,...
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Page 12: Magnum Ds880 Chassis
Model DS880-B, and an internal power supply unit. The front side of the chassis has eight RJ-45 twisted-pair ports and one cascading (UP-LINK) switch for Port 8 on the right. LEDs to indicate operating status are on the left front side. There are power (PWR) and bridge-inside (BR) indicators for the unit. -
Page 13: Stacking Magnum Ds880S
Magnum DS880 Dual-Speed Stackable Hubs Stacking Magnum DS880s Up to four Magnum DS880s can be stacked to operate as one 10/100 dual-speed repeater with up to 32 dual-speed ports. Normally, one Magnum DS880-B hub per stack is needed to provide a switched interconnection between the two separate 100Mb and 10Mb traffic... -
Page 14: Bridge Module Between The 10Mb And 100Mb Domains
Up-link Switch on Port 8 for Cascading The unit has an up-link switch for Port # 8, located on the right-front side of the hub. It enables the port’s cable to either connect to a user station ( = position) or to be cascaded to another hub (X position). -
Page 15: Features And Benefits
IEEE 802.3u, providing interoperability with other products. An internal switch connects the 10 and 100Mb domains on Model DS880-B Model DS880-B has an internal switch for filtering / forwarding traffic between the 10 and 100Mb domains, allowing all connected devices to talk to each other. High performance switching provides full bandwidth in each domain, unaffected by local traffic on the other domain. -
Page 16: Applications
10Mb domain, so overall performance of the network is improved. Figure 2.7.2 : DS880-B adds a new 100Mb domain to existing 10Mb Server network www GarrettCom com UPLINK Print Server Users P W R 10 0 A CT... - Page 17 DS880-B performing bridge-isolation of one domain from the other, filtering and selectively forwarding 10Mb and 100Mb packets between the two domains. This keeps the traffic between the domains to a minimum and provides peak performance on both domains. www GarrettCom com A CT C OL...
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Page 18: Installation
When stacked, the rubber feet also provide separation between units for the exhaust of the rear cooling fan. www GarrettCom com Installation and User Guide (05/01) -
Page 19: Wall (Or Vertical Surface) Mounting
For Port # 8, if the LINK LED is not illuminated, change the setting of the up-link switch. If this does not help, ensure that the cable is connected properly and that the device on the other end is powered and is not defective. -
Page 20: Collision Domain Diameter, Cable Distances And Pdv Calculations
The worst case path is the path between the two Fast Ethernet devices (DTEs) which have the longest round-trip time. www GarrettCom com Installation and User Guide (05/01) Round-trip delay in Bit Time per Meter (BT/m) 1.000... - Page 21 An illustration of this example is shown in Figure 3.2.2b, where the hub-to-user cable www GarrettCom com Installation and User Guide (05/01) Cat. 5 cable for...
- Page 22 Magnum DS880 Dual-Speed Stackable Hubs lengths are up to 100 meters for Cat 5 twisted pair. The variable “X”, the maximum hub-to-hub cable delay, is calculated as follows: PDV = X + ((100) + (80 + 80 + 80 )+ (83 + 83) + 2 ) BT < 512 BT 512 >...
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Page 23: Connecting To Nics Which Support Auto-Negotiation
AC voltage is from 90 to 260 volts with an input frequency between 47 and 63 Hz, and consumes a maximum of 20 watts. In order to power down the unit, simply unplug either end of the AC power cable. www GarrettCom com Installation and User Guide (05/01) -
Page 24: Operation
If it is a new node address coming in which the switch did not previously know about, it “learns” the new address and puts it in the correct port address table. See “Address Learning”... -
Page 25: Software Transparency
Software Transparency 4.1.1 The Magnum DS880-A and -B Dual-Speed Hubs need no software set-up and are transparent to system and application software, including network management software. www GarrettCom com Installation and User Guide (05/01) Destination Address Table Address Maintenance... - Page 26 The unit has been set at 10/100Mbps at the time of shipping. The Switch SW3 represents port#1 to 4 and the switch SW2 port#5 to 8 as shown in the Fig 4.2 above. The switches has 8 Dip-switches each. Every two contiguous Dip-switches represent one single port.
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Page 27: Auto-Negotiation And Speed-Sensing
“X” position for cross-over or up-link segment connections from the DS880 port to a repeater or hub. Verify proper switch position by noting the port’s LINK LED status, which is illuminated when a proper link is made. -
Page 28: Troubleshooting
If the problem continues after completing Step 4 above, contact your supplier of the Magnum DS880 10/100 Dual Speed Stackable Hubs unit or if unknown, contact GarrettCom, Inc.by fax, phone or email (support@garrettcom.com) for assistance. www GarrettCom com Installation and User Guide (05/01) -
Page 29: When Calling For Assistance
The components involved in the problem; d. Any particular application that, when used, appears to create the problem; An accurate list of GarrettCom product model(s)involved, with serial number(s). Include the date(s) that you purchased the products from your supplier. -
Page 30: Shipping And Packaging Information
GarrettCom, Inc. 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 GarrettCom. During this warranty period, GarrettCom will repair or, at its option, replace components in the products that prove to be defective at no charge other than shipping and handling, provided that the product is returned pre-paid to GarrettCom. -
Page 31: Appendix B: Optional 48Vdc Power Supply, Addendum
The power switch (included on premium-priced NEBS-certified units only) is used for powering the hub on and off when it is placed into or taken out of service. - Page 32 “+” and then the rest. Ensure that each lead is securely tightened. On the premium-priced NEBS-compliant Magnum DS880-48V models, an ON-OFF switch is included, located in the rear at the power input. This can be used in conjunction with power connections, and as a RESET for the hub’s electronics. B4.1 UL Requirements Minimum 14 AWG cable for connection to a Centralized DC power source.