M160 Internet Router Hardware Guide
Figure 11: Craft Interface
1231
HOST1
FPC 7
FPC 6
FAIL
OK
FAIL
OK
OK FAIL
FPC 5
FPC 3
OK OK OK
HOST0
OK
FPC 2
FAIL
FPC 4
FPC 0 FPC 1
OK
FAIL
FAIL
FAIL
FAIL
ACO/LT
MASTER
OFFLINE ONLINE
MASTER
OFFLINE ONLINE
ENTER
MENU
FPC LEDs and offline buttons (for FPC 0-7)
Host module
LEDs
Navigation
buttons
LCDNavigation
buttons
Alarm cutoff
button
Red alarm
LED
Yellow alarm
LED
NOTE: The LEDs for some router components are located on the component
faceplate, rather than on the craft interface. For information about those LEDs, see
the following sections:
“PCG Components” on page 19
“SFM Components” on page 20
“MCS Components” on page 26
Power S ystem on pa ge 35
For information about the elements on the craft interface, see the following sections:
Alarm LEDs and Alarm Cutoff/Lamp Test Button on page 28
LCD and Navigation Buttonson page 29
Host Module LEDs on page 31
FPC LEDs and Offline Button on page 31
Alarm LEDs and Alarm Cutoff/Lamp Test Button
Two largealarm LEDs are located at the upper left of the craft interface
(see Figure 11). The circular red LED lights to indicat ea c ritical condition
that can result in a system shutdown. The triangular yellow LED lights to
indicate a less severe condition that requires monitoring or maintenance.
Both LEDs can be lit simultaneously.
A condition that causes an LED to lightalso activates the corresponding alarm
relay contact on the connector interface panel (CIP), as d escribed in “Alarm
28 Craft Interface