2 Hardware Architecture
User's Manual
HT8000-I/HT8000-II/HT8000-VI
32
Beijing Huahuan Electronics Co., Ltd.
Version 1.4(Oct.2019)
There is a PWR LED and a power interface on the front panel of
FPS1-A220. The front panel diagram is shown in Figure 2-6, the PWR
LED is described in Table 2-8.
Figure 2-6
The front panel diagram of FPS1-A220
FPS1-A220
AC220
PWR
Table 2-8
LED functional descriptions of FPS1-A220
LED
Status
Descriptions
PWR
On (green)
Normal power supply/voltage input
Off
Abnormal power supply access
2.2.4 4-channel OSC Card (FS4)
FS4 card is used to process 4 optical supervisory channels (OSC1-OSC4)
at each site.
FS4 card provides clock source for the system.
FS4 card has 2 LEDs, 4 OSC ports, 1 BITS port, 1 1PPS TOD port, and 1
alarm output port. The front panel diagram is shown in Figure 2-7, the
LEDs are described in Table 2-9.
Figure 2-7
The front panel diagram of FS4
FS4
SYS
PWR
LINK
OSC1
OSC2
OSC3
OSC4
BITS
ALM
IN-1PPS TOD-OUT
