2 Hardware Architecture
User's Manual
HT8000-I/HT8000-II/HT8000-VI
40
Beijing Huahuan Electronics Co., Ltd.
Version 1.4(Oct.2019)
Table 2-17
LED functional descriptions of O2A8-D
LED
Color Descriptions
LOS
Red
Ethernet optical port signal status indication:
On: loss of optical signal
Off: optical signal received
2.2.8 4-channel Transponder Card (O4M4)
O4M4 is used to map 4 channels of multi-service 10G signals
(e.g.10GE/STM-64) to OTU2 signals, achieving transparent pass-through
of this traffic.
O4M4 supports RMON function, alarm and performance monitoring
functions.
O4M4 is coded by NRZ. It supports the ESC function to integrate the
monitoring information into the service channel for transmission.
O4M4 card has 4 NNI interfaces and 4 UNI interfaces. NNI/UNI optical
interfaces support the LC dual-fiber SFP+ optical module or single-fiber
SFP+ optical module. The front panel diagram is shown in Figure 2-14, the
LED is described in Table 2-18.
Figure 2-14
The front panel diagram of O4M4
1
4
3
4
3
UNI
UNI
NNI
NNI
2
1
2
O4M4
