3Com NETBuilder II, Инструкция по установке, Страница: 17 / 82

Chassis Description 1-7
2 Route all cables from the I/O modules through the two arms of the bracket
from top to bottom, as shown in Figure 1-7.
Figure 1-7 Routing Cables through the Strain-Relief Bracket on the 4-Slot Chassis
Chassis Description
This section describes the basic hardware and accessories of the NETBuilder II
4-Slot chassis.
Front Panel The front panel of the 4-Slot chassis includes:
■
A 2-line, 24-character alphanumeric LCD and an LCD control panel.
■
Two LEDs, one labeled POWER and the other labeled STATUS.
■
A floppy disk drive (for use with the CEC 20 module only).
Figure 1-8 shows the front panel of the 4-Slot chassis.
Figure 1-8 4-Slot Chassis Front Panel
LCD and LCD Control Panel
The 2-line, 24-character, alphanumeric LCD displays startup and status
messages.
The LCD control panel consists of four buttons located under the LCD. These
buttons allow you to perform a reset and, for the CEC 20 module, to access the
Diagnostic Main Menu.
Performing a reset
To perform a reset, simultaneously press the outer buttons, which are
marked Reset.
Accessing the
Diagnostic Main Menu
(CEC 20 only)
To access the Diagnostic Main Menu, simultaneously press the two inner
buttons, which are marked ATTENTION. The menu is displayed on the LCD. For
complete information on the Diagnostic Main Menu, refer to the
NETBuilder II
CEC 20 Module Installation Guide. The DPE module does not support the
Diagnostic Main Menu.
4
3
Cable strain-relief bracket
NETBuilder II
3 Com
Power
Status
Attention
Reset
Floppy disk drive (for CEC 20)
POWER and
STATUS LEDs
LCD and LCD
control panel