Magnum DS880 Dual-Speed Stackable Hubs Installation and User Guide (05/01)
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www GarrettCom com
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ONTENTS
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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
2.2 Product Description............................................................................................ 5
2.2.1 Magnum DS880 Chassis ......................................................................... 7
2.2.2 10 / 100 Speed Auto-sensing ................................................................... 7
2.3 Stacking Magnum DS880’s ............................................................................... 8
2.4 Bridge Module between the 10Mb and 100Mb Domains ................................... 9
2.5 Up-link Switch on Port # 8 for Cascading........................................................... 9
2.6 Features and Benefits ........................................................................................ 10
2.7 Applications ...................................................................................................... 11
3.0 INSTALLATION ...................................................................................................... 13
3.1 Locating Magnum DS880 Dual-Speed Hubs .................................................... 13
3.1.1 Table-Top or Shelf Mounting................................................................ 13
3.1.2 Wall (or Vertical Surface) Mounting..................................................... 13
3.2 Connecting Ethernet Media............................................................................. 14
3.2.1 Connecting Twisted Pair (CAT3, CAT5).............................................. 14
3.2.2 Collision Domain Diameter, Cable Distances and PDV Calculations... 14
3.2.3 Connecting to NICs which support Auto-Negotiation........................... 17
3.3 Powering the Magnum DS880 .......................................................................... 18
4.0 OPERATION............................................................................................................. 18
4.1 Dual-Speed Functionality................................................................................ 18
4.1.1 Software Transparency........................................................................... 20
4.2 Port Speed settings for 10,100 and 10/100Mbps Mode only........................... 20
4.3 Auto-negotiation and speed-sensing ................................................................ 21
4.4 LEDs ................................................................................................................ 21
4.5 Up-link Switch .................................................................................................. 21
5.0 TROUBLESHOOTING............................................................................................. 22
5.1 Before Calling for Assistance ........................................................................... 22
5.2 When Calling for Assistance............................................................................. 23
5.3 Return Material Authorization (RMA) Procedure............................................. 23
5.4 Shipping and Packaging Information ................................................................ 24
A
PPENDIX
A: WARRANTY INFORMATION ................................................................ 24
A
PPENDIX
B: OPTIONAL 48VDC POWER SUPPLY, ADDENDUM ........................... 25
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; Connecting to NICs which support Auto-
Negotiation information; and Collision Domain Diameter, Cable Distances and PDV
calculations.
Rev A 10/97 :
This revision is the initial release of the DS880 Dual Speed
Stackable Hubs user manual.
