IBM 8275, User Manual

Page: 19 / 110

Front Panel
8275-416 LEDs
8275-416 LEDs are located at the lower left corner of the front panel (left of
the single-digit display and are identified with a vertical bar (I), OK, and
Fault. The LED for the vertical bar is Green, as is the OK LED; the Fault
LED’s color is amber. The states of the LEDs are on, off, or blinking, are
explained later in this chapter.
Single-Digit Display
The single digit display is located at the lower left corner of the front panel
as shown in Figure 2 on page 6. During diagnostics, the character displayed
indicates the diagnostic test being executed. Once the 8275-416 is
operational, the character displayed is its Unit ID.
Serial Port (EIA 232)
The serial port is a standard DB-9 male connector that provides an
EIA–232 serial interface (sometimes referred to as the out-of-band
management port). Use a null-modem serial cable when connecting to a
workstation (see “Appendix C. Cable Pinout Diagrams” on page 79). Use a
VT100 terminal emulator program to configure your terminal’s attached
COM port as follows:
v
19 200 baud
v
8 data bits
v
1 stop bit
v
No parity
v
Hardware flow control OFF
See “Chapter 2. Accessing the 8275-416” on page 11 for more information
about connectivity.
Ethernet 10/100BASE-TX Ports
The 8275-416 has 16 Ethernet 10/100BASE-TX ports. Each port has two
LEDs located at the lower right and left of the connector. Status indications
of the Port LEDs are explained later in this chapter.
Feature Module Slots 1 and 2
These feature modules are available to expand port connections to your
8275-416 :
Figure 1. Front Panel of the 8275-416 .
Chapter 1. Introduction
5