GarrettCom DS 880 Manual De Usuario

Descargar
Página de 32
Magnum DS880 Dual-Speed Stackable Hubs                  Installation and User Guide (05/01)  
 
iv 
www  GarrettCom  com
.
.
T
ABLE OF 
C
ONTENTS                                                                                                       
P
AGE
 
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.