Olson Technology OTOHP-CH - Manual (Page 8)

UNINSTALL THE POWER SUPPLY MODULE
Note: A service outage will occur if a power Supply module is removed from a
chassis if no other power supply module is installed in the chassis.
1. Turn the Power Supply module off.
2. Disconnect the power cord from the power supply module receptacle at the rear
of the OTOHP-CH chassis.
3. Loosen the two thumbscrews on the front panel of the module. CAUTION: Do
not pull on the thumbscrews to remove the module. Pull on the handle that the
thumbscrew goes through to remove the module.
TROUBLESHOOTING
STATUS LED LIGHT RED
1. Check to verify that fans are running on back panel.
2. Check DC test point output voltage (spec. 24V 1.8V). If module has any one
DC
condition, please call customer service department.
DC OUT LED NOT LIT
Installation of the AC Power Supply module is explained above. Periodically verify that
the DC OUT LED on the front panel of the Power Supply module(s) is lit. If this LED is not
green, please check DC test point on front panel. There is a fault on a power supply
module, or a short circuit in one of the modules installed in the chassis.