User's Manual
HT8000-I/HT8000-II/HT8000-VI
2 Hardware Architecture
Version 1.4(Oct.2019)
Beijing Huahuan Electronics Co., Ltd.
75
Table 2-42
LED functional descriptions of P1R1-M
LED
Color Descriptions
RUN
Green
System running indication:
Blink: running normally
Off: running abnormally
Green light at
NM port
Green
Ethernet port Link/Active indication:
On: link up
Blink: date transmitted in Ethernet port
Off: link down
Yellow light at
NM port
Yellow Ethernet port Speed indication:
On: link to 100M
Off: link to 10M or link down
Blink: date transmitted in Ethernet port
ALM
Red
Alarm status indication:
On: alarm occurs to the card
Off: no alarm
OSC
Red
Optical port signal state indication:
On: optical signal loss
Off: optical signal is received
MA
Red
NNI-side optical signal receiving
indication:
On: the received optical power is lower
than threshold
Off: the received optical power is higher
than threshold
