Service Manual

GSM-204-323
Power supply module (PSM)
31st Oct 01
Tech. 4–32
Technical Description: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W02-A
PSM module
view
Figure 4-19 shows a view of the PSM with LEDs identified.
PSM FRONT PANEL
AIR VENTS ON
ENTIRE TOP AND
BOTTOM PANELS
GREEN LED
ACTIVE
RED LED
ALARM
OUTPUT DISABLE
SWITCH
M4 MODULE ATTACHMENT
SCREWS
Figure 4-19 View of PSM
PSM alarms
There are three alarms for each PSM, indicated by LEDs (see Table 4-9):
 Output fail.
 Input fail.
 Over temperature.
PSM LEDs
The PSM LEDs function with the properties shown in Table 4-9.
Table 4-9 Power supply module LEDs function
Green LED
ACTIVE
Red LED
ALARM
Indication
OFF OFF 1. Cabinet power supply off, or
2. Module not connected.
ON OFF Normal operation.
OFF ON 1. Output disable switch off, or
2. Alarm condition with module unable to supply
power.
ON ON Internal problem (such as over temperature), but
still able to maintain supply.