Nortel Networks 1000ASE-XD - Manual (Page 27)

Chapter 1 BayStack 420 Switch 27
Using the BayStack 420 10/100/1000 Switch
The Console port is a DB-9, RS-232-D male serial port connector. You can use
this connector to connect a management station or console/terminal to the
BayStack 420 Switch by using a straight-through DB-9 to DB-9 standard serial
port cable. You must use a VT100/ANSI-compatible terminal (for cursor control
and to enable cursor and functions keys) to use the console port. See Installing the
BayStack 420 10/100/1000 Switch for more information.
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 enabled.
Gigabit Interface Converter (GBIC)
Gigabit Interface Converters (GBICs) are hot-swappable input/output
enhancement components designed for use with Nortel Networks products to
allow Gigabit Ethernet ports to link with fiber optic networks.
Port connectors
The BayStack 420 Switch uses 10BASE-T/100BASE-TX RJ-45 (8-pin modular)
port connectors.
The 10BASE-T/100BASE-TX port connectors are configured as MDI-X
(media-dependent interface-crossover). These ports connect over straight cables
to the network interface card (NIC) in a node or server, similar to a conventional
Ethernet repeater hub. If you are connecting to an Ethernet hub or Ethernet switch,
use a crossover cable unless an MDI connection exists on the associated port of
the attached device (see “
Appendix D, “Connectors and pin assignments,” on
page 195 ).
The BayStack 420 Switch uses autosensing ports designed to operate at 10 Mb/s
(megabits per second) or at 100 Mb/s, depending on the connecting device. These
ports support the IEEE 802.3u autonegotiation standard, which means that when a
port is connected to another device that also supports the IEEE 802.3u standard,
the two devices negotiate the best speed and duplex mode.
Note: The console port is configured as a data communications
equipment (DCE) connector. Ensure that your RS-232 cable pinouts are
configured for DCE connections (see
Appendix D, “Connectors and pin
assignments,” on page 195 ).