Appendix AHSSI Module Components
This appendix describes the HSSI module components and gives the specifications of the
board. The following figures show the major components and the connector/LED panel.

LEDs

The following table explains the states of the three LEDs.
Table A-1. LED states
LED Normal
Behavior
Color Indicates
TX on green packets forwarding
CA on green CSU available
STATUS on green
off
yellow
red
normal operation
module disabled
self-test
fault
CA LED
TX LED
Connector
Status LED
Backplane
connector
to NETBuilder II
STATUS
HSSI
®
TX
CA