DESCRIPTION OF PARTS
5
2 DESCRIPTION OF PARTS
2. 1 Rear panel
All connections into and out of the DC3X00 are made through the rear panel. The rear panels
are shown in schematic form below.
ALARM
EXT
ALARM
EXT
Pin1
-48V
Pin3
0V
L
__
Figure 2.1 DC3000 rear panel (100-250 VAC supply)
Figure 2.2 DC3200 rear panel (-48VDC supply)
2. 2 Status display - rear panel
There is a status LED on the right hand side of the rear panel which indicates the status of
the unit as shown in the figure below.
Figure 2.3 Rear panel status LED
Status LED
Meaning
Off
No mains power present
Red steady
LOS
Red/Off flashing
LOS and DTE Alarm
Red/Green flashing
LOF or AIS Alarm
Red/Green/Off flashing
AIS and DTE Alarm
Green/Red/Off flashing
LOF and DTE Alarm
Green/Off flashing
DTE Alarm
Green steady
DC3X00 is operating normally
