Installation Guide

C HAPTER 1 | Introduction
Description of Hardware
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EXPANSION MODULE SLOTS
The two expansion module slots on the switch are reserved for future use.
100BASE-TX MANAGEMENT PORT
The 10/100BASE-TX port labeled “Management” provides a dedicated
management interface which is segregated from the data traffic crossing the
other ports.
This port supports auto-negotiation, so the optimum transmission mode (half or
full duplex) and data rate (10 or 100 Mbps) can be selected automatically, if this
feature is also supported by the attached device. However, note that the
interface connection parameters of this port cannot be configured.
CONSOLE PORT
The console port on the switch’s front panel uses an RJ-45 jack with with serial
pinouts (see Table 2 on page 45) which enable a connection to a terminal for
performing switch monitoring and configuration functions. The terminal may be
a PC or workstation running terminal emulation software, or a terminal
configured as a Data Terminal Equipment (DTE) connection. A null-modem wired
serial cable is supplied with the switch for connecting to this interface.
ALARM INTERFACE PORT
The DB-15 alarm port on the switch’s front panel can be used to provide alarm,
service port, and BITS clock reference interfaces. The switch supports two sets
of alarm relay contacts (major and minor), and 4 external customer site alarm
inputs. It also provides an alarm cutoff button (labeled ACO). Refer to
“Connecting to the Alarm Port” on page 46 for a description of the pin
assignments used to connect to the alarm port.
USB PORT
The USB 2.0 port (operates at 1.5 Mbps or 12 Mbps) can be used to connect
external memory device to the switch.