GarrettCom Magnum 3000 Manual De Usuario

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Magnum 3000 Stackable Hubs                                   Installation and User Guide (07/06)
 
 
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Important Note:  For the RPM-TP MDI-X Crossover Switch - 
 
 
DOWN(or Right) for  workstations and user connections. 
 
 
UP (or Left) for  Up-Link connections to other hubs, etc.
 
 
 
(To help recall the right TP switch position, remember "up for up-link" ! ) 
 
The RJ-45 pins normally (TP crossover switch DOWN) are per the standard for hubs-to-
users twisted pair wiring: 1 = receive+, 2 = receive-, 3 = transmit+, 6 = transmit-, other 
pins not used.  When the TP crossover switch is UP, the pins of the RJ-45 port are per the 
standard for up-links using twisted pair wiring, i.e., the transmit and the receive pairs are 
exchanged: 1 = transmit+, 2 = transmit-, 3 = receive+, 6 = receive-, other pins not used.  
 
4.2.8 BPM-BNC 
 
The Magnum BPM-BNC bridge module is equipped with a standard 10BASE2 
coax BNC connector.  This BPM is self-learning and filters and forwards packets at full 
Ethernet wire speed.  This module is used for 10BASE2 connections and is designed to 
isolate the local segment (i.e., the local nodes connected to the Magnum unit housing the 
BPM internally) from the connecting network (i.e., the nodes of external users and 
devices connected through the BPM’s media connector). 
 
The BPM-BNC module is designed with a special switch -selectable internal 
termination function that eliminates the need for a "tee" connector and a  50 ohm 
terminator.  For switch details, refer to the RPM-BNC section, 3.2.1   
 
The BPM-BNC module includes an FWD-I LED and an FWD-X LED,  which 
are visible from the front. The FWD-I 
LED blinks GREEN to indicate that 
packets are being forwarded INTO the 
local Magnum hub or stack..  The FWD-
X LED blinks GREEN to indicate that 
packets are being forwarded OUT of the 
local Magnum hub or stack.   
 
 
 
    
 
 
 
 
 
Magnum BPM-BNC 
 
 
   
 
 
 
 
Standard BNC
10BASE2 Connector
Internal Termination
Slide Switch
1
2
FWD-X LED
FWD-I LED
2
1