Instruction manual

Installing and Stacking BayStack Hubs
2-10 893-839-C
When you use the management extension ports to connect cascades, be sure to
consider the following guidelines:
• Your stack must not exceed a total of 10 hubs.
• Management extension ports require standard (Category 3 or better)
four-pair unshielded twisted pair (UTP) cable terminated with RJ-45
connectors. Bay Networks does not provide this cable.
• Use cable of this type to provide stack management to parts of your stack
not physically close enough to connect with cascade cables.
• Management extension cable does not provide network data (segment)
connectivity between remote cascades. Use an MDI-X/MDI 10BASE-T
connection if you want remote hubs on the same segment.
• Management extension cable can be hot swapped.
To install the management extension cable between cascades in a stack of
100-series hubs, follow these steps:
1. Connect one end of the management extension cable to the
Management Extension Out port of the bottom hub in the managed
cascade.
2. Connect the other end of the management extension cable to the
Management Extension In port of the top hub in the remote cascade.
3. If connecting management extension cable to more than one remote
cascade, repeat steps 1 and 2.
Connecting RJ-45 Hubs Using the MDI-X/MDI Button
You can connect port 1 on a hub with RJ-45 connectors to another RJ-45 hub
by using the MDI-X/MDI button. Hubs connected in this way can be on the
same segment, even when they are in different cascades.
When you make port 1 connections from a 10BASE-T port to the 10BASE-T
port on another device, consider the following guidelines:
NOTE: Do not use management extension cable between hubs in the
same cascade.
893-839-CBook Page 10 Thursday, December 12, 1996 4:18 PM