Page 20 Operation 90030500B
PortServer II Front Panel
Pushbuttons
LED Indicators Alphanumeric Display
Figure 7 PortServer II Front Panel
LED indicators
These show the current status of a serial port or the Ethernet connection. Details of
how to interpret the information displayed are given later in this Chapter. The LEDs
can also show diagnostic information, as described in
Chapter 17,
Troubleshooting
.
Alphanumeric display
If the alphanumeric display shows a number, the information shown on the LED indi-
cators relates to the serial port of that number. For example, if it shows
16
, the infor-
mation on the LED indicators is for Port 16.
If the alphanumeric display shows
EA
, the information shown on the LED indicators
relates to E
thernet Activity.
If the alphanumeric display shows
PU
, the LED indicators show P
rocessor Utilization
in a bar graph-like presentation. The more LEDs that are lit, the greater the CPU activ-
ity.
If the alphanumeric display shows
AC
, PortServer II has powering up and is now in
normal operating mode.
Other indications on the display identify possible fault conditions. Refer to
Chapter
17, Troubleshooting
for information on fault codes.
SERIAL
CCITT
ETHERNET
SERIAL RECEIVE TRANSMITTWISTED
PAIR
TD RD
LI POL CS RX
ERR OVF
TX COL
TD RD
RTS CTS DSR DCD
DTR RI
OFC IFC
103 104
105 106 107 109
108 125
Board
PS
ORT ERVER
II16
™
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