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Magnum DS880 Dual-Speed Stackable Hubs Installation and User Guide (05/01)
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www GarrettCom com
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T
ABLE OF
C
ONTENTS
P
AGE
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.