Bay Technical Associates BayStack 303 User Manual

Using the BayStack 303 and 304 Ethernet Switches

1-4

893-01010-A

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1 = One 10/100BASE-TX port

2 = 24 10BASE-T ports

3 = Console port connection

4 = Expansion slot for the addition of an optional 10/100BASE-TX or 100BASE-FX MDA

(switch should be powered down to install MDA)

5 = LED status indicators

The 10BASE-T port connections are provided for the 10 Mb/s Ethernet segment 
or nodes to attach to the BayStack 303 and 304 Ethernet Switches. The RJ-45 
jacks accept standard Category 3, 4, or 5 copper unshielded twisted pair (UTP) 
cable connections. Pin assignments for the standard RJ-45 connector are given in 

. The BayStack switches are shipped with the 10BASE-T connectors 

configured as MDI-X (media-dependent interface-crossover). These ports connect 
over straight cables to the network interface controller (NIC) card in a node or 
server, similar to a conventional Ethernet repeater hub. If you are connecting to 
another Ethernet hub or Ethernet switch, you need a crossover cable unless an 
MDI connection exists on the associated port of the attaching device (see 

 for a description of the crossover 

cable).

The 10 Mb/s ports operate in half-duplex mode only, and each port has an 
associated LED that indicates link status of the line.

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89301010.BK  Page 4  Tuesday, June 10, 1997  8:00 PM