Hitachi GR4000 Series Installation Manual page 55

(3) LED (Light Emitting Diode) and Switches
Table 1.4-1 LED Indications and Switches on the BCU-RH8ME Front Panel
Name Type or color
LAMP TEST Switch
RESET Switch
POWER
LED：Green
READY
LED：Green
ERROR
LED：Yellow
ALARM
LED：Red
POST
LED：Green
STATUS
7SEG：Green
CODE
MEMORY
LED：Green
CARD 0
ACC
MEMORY
LED：Green
CARD 0
PRI
MEMORY
LED：Green
CARD 1
ACC
MEMORY
LED：Green
CARD 1
PRI
LINK/ACT LED：Green/
LINE ERR Yellow
T/R
LED：Green
(Note 1)：When the lamp test switch is pushed, all the LEDs except those on the locked out boards are lit.
(Note 2)：If you are using a wrong type of a twisted-pair cable, there is a chance that the LED will be lit. If so, change the
twisted-pair cable to the correct type referring Chapter 3.
(Note 3)：Regardless of the state of the line, the LED will be lit if the system detects date being sent or received.
Because of this, there is a chance that the LED will be lit even if the cable is not connected on the destination side.
*
520-10-014-20X
Role
Lamp test
Manual reset of a device
Shows the condition of
power input.
Shows the action status of
a device.
Shows a partial error in a
device.
Shows the problem
affecting the entire body of
a device.
Shows the condition of
STATUS CODE.
Shows the condition of a
device. (7SEG, decimal
with 2 digits)
Shows the condition of the
memory card 0.
Shows the condition of the
memory card 1.
Shows the action status of
CONSOLE (10BASE-
T/100BASE-TX)
NOTE: The status of some actions related to BCU is indicated by the LED on the front
panel of the device. See the section "1.1 Chassis" for its outer appearance, etc.
NOTE:.Do not install optional components from a GR4000 or GS4000 into
devices other than another GR4000 or GS4000. Doing this causes a fire
or an electric shock.
GR4000 Installation Guide Version 1.00 - Preliminary
Action Status
Lamp test switch（non-lock）（Note 1）
Reset switch（non-lock）
ON: Power output in BCU is normal.
OFF: Power output in BCU is abnormal, or BCU
is powered off.
ON: Operation is possible.
OFF: A failure was found in BCU , or BCU is
being initialized.
ON: A partial error was found in a device.
ON: The problem affecting the entire body of a
device happened.
ON: STATUS CODE（7SEG）is showing the
initial diagnosis code of BCU.
OFF: STATUS CODE（7SEG）is showing
FAULT CODE.
ON: The code (00～99) to tell the condition of a
device is shown.（The code shows the different
contents when POST LED is lit.）
ON: The memory card 0 is being accessed.
(Pulling out the memory card from a device is
prohibited.)
OFF: The memory card 0 is being idled.
(Inserting or pulling out the memory card into or
from a device is allowed.)
ON: A device was started up as the primary.
OFF: A device was started up as the
secondary. Or the memory card 0 is not used.
ON: The memory card 1 is being accessed.
(Pulling out the memory card from a device is
prohibited.)
OFF: The memory card 1 is being idled.
(Inserting or pulling out the memory card into or
from a device is allowed.)
ON: A device was started up as the primary.
OFF: A device was started up as the
secondary. Or the memory card 0 is not used.
Green ON:Interface lines are working (Note 2)
Yellow ON: A failure was detected in an
interface line.
Green ON: Packets are being
forwarded/received. (Note 3）
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