Bay Technical Associates BayStack 303 User Manual

Page of 101
Using the BayStack 303 and 304 Ethernet Switches
1-6
893-01010-A
A speed LED (100) is also provided to indicate when the port is operating as a 
100 Mb/s port. The LED is off when the port is operating as a 10 Mb/s port. See 
” on 
 for more information on autonegotiation of wire 
speed. 
Like the 10BASE-T ports, all 10/100BASE-T ports are also configured as MDI-X. 
 lists the pin assignments for the RJ-45 connector.
MDA Slot
Each BayStack switch is configured with one expansion slot that can be populated 
with an optional plug-in media-dependent adapter (MDA) to support a high-speed 
connection to servers, shared Fast Ethernet hubs, or backbone devices. Two types 
of media adapters are available for the BayStack switches:
Model MTX-1, 10/100BASE-TX copper connection
Model MFX-1, 100BASE-FX fiber connection
Both media types support half- and full-duplex operation and have an LED to 
indicate when the port is operating in full-duplex mode. See 
,” for a full description of the MDA.
Console Port Connector
The console port has a DB-9 male connector used to connect a management 
terminal to the BayStack switch by means of a straight-through DB-9 to DB-9 
standard serial port cable. Using a terminal, you can monitor the results of startup 
self-diagnostics, perform manual boot configuration and SNMP agent 
configuration, and customize your network using the supplied menus and screens.
The console port runs at 9600 baud and uses 8 data bits, 1 stop bit, and no parity 
as the communications format, with flow control disabled.
In less complex applications with no network management, where no 
configuration changes are required, you do not need to use the console port on the 
BayStack switches.
Warning: 
Power to the switch must be turned off prior to installation of the 
MDA. 
89301010.BK  Page 6  Tuesday, June 10, 1997  8:00 PM