BayStack 450 10/100/1000 Series Switches
302401-D Rev 00 1-3
Comm Port
The Comm Port (also referred to as the Console/Comm Port) allo ws you to access
the console interface (CI) screens and customize your network using the supplied
menus and screens (see Chapter 3, “Using the Console Interface”).
The Console/ Comm Port is a DB-9, RS-232-D male seri al port connect or . You can
use this connector to connect a management station or console/terminal to the
switch by using a straight-through DB-9 to DB-9 standard serial port cable (see
“Console/Comm Port” on page 2-10).
The console port default settings are: 9600 baud with eight data bits, one stop bit,
and no parity as the communications format, with flow control set to disabled.
Uplink/Expansion Slot
The Uplink/Expansion slot allows you to attach optional media dependent
adapters (MDAs) that support a range of media types (see Appendix C, “Media
Dependent Adapters” fo r more in forma tion about MDA type s available from
Nortel Networks).
Port Connectors

10BASE-T/100BASE-TX Ports

The BayStack 450-24T switch and the BayStack 450-12T switch use
10BASE-T/100BASE-TX RJ-45 (8-pin modular) port connectors.
Note: The Console/Comm Port is configured as a data communications
equipment (DCE) connector. Ensure that your RS-232 cable pinouts are
configured for DCE connections (see “DB-9 (RS-232-D) Console/ Comm Port
Connector” on page E-5).
Note: The RJ-45 port connectors on BayStack 450 switches manufactured
prior to Dece mber 1998 are numbered 1 to 12 and 13 to 24, in succession fr om
left t o righ t. Later units use port conn ector s that ar e conf igu red with o ne or tw o
dual, six-port groups, numbered 1 to 12 and 13 to 24. The top rows are odd
numbered and the bottom rows are even numbered (see Figure 1-2 on
page 1-2). Port-specific examples in this guide show the appropriate port
connections when required; other examples apply to both versions.
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