Power-up of the dmps-10ce power supply, Replacing the line fuse – ADC DMPS-10CE User Manual
Page 7
ADCP-50-404 • Issue 2 • November 1998
Page 7
© 1998, ADC Telecommunications, Inc.
(e) Install the two screws removed in step (b) above to hold the expansion module in place.
(f) Connect the output power cable to the unit requiring the dc power. Pin assign-ments on
the cable connector are defined earlier in this manual.
Note: It is recommended that the DMPS-10CE Power Supply or the DMPS-10EXP/CE
expansion modules be connected to a load before ac power is applied.
8. POWER-UP OF THE DMPS-10CE POWER SUPPLY
The DMPS-10CE Power Supply has dual panel-mount fuse holders (located on the rear) to
provide over current protection in each leg of the ac input source. As shipped, the power
supply is fused with two 4-amp, time-delay fuses. To power the DMPS-10CE power supply
proceed as follows:
(a) Turn the power switch located on the front panel to the OFF (“0”) position.
(b) Connect the 220 Vac power cord provided to the power supply shelf.
(c) Cut the plug off the other end of the power cord. Replace the plug with a plug that
matches your utility outlet.
(d) Connect the other end of the power cord to the utility outlet.
(e) Set the ac switch at the front of the DMPS-10CE Power Supply to the on (“
I
”) position.
(f) Verify that power LED is lit on the front of the power supply for the basic power supply
and any expansion modules installed.
9. REPLACING THE LINE FUSE
The line fuses are located in dual panel-mount fuse holders on the back of the unit. To replace
a line fuse/fuses:
(a) Set the ac switch to OFF (“0”) position.
(b) Remove the line cord from its utility outlet.
(c) Disconnect the line cord from the socket in back of the DMPS-10CE Power Supply.
(d) Turn fuse holder carrier in a counter-clockwise direction and remove fuse carrier from
fuse holder. Fuse location is shown in
(e) Use an Ohm meter to check fuses for opens.
(f) Replace the bad fuse/fuses and reinsert the fuse carrier back into its socket. Turn fuse
carrier clockwise until fully seated.
(g) Repeat Steps d – f for the other fuse.
(h) Reconnect the power cord to the Power Supply and its utility outlet.
(i) Set the ac switch to ON (“
I
”) position.