Difference between revisions of "H7848 Power Supply"

Latest revision as of 16:58, 15 July 2023

The H7848 Power Supply is used on the following computers resp. options:

Model H7848-AA is for nominal 115 V input and model H7848-AB is for nominal 230 V input.

The power supply assembly includes an ac power connector, an ac power switch, and a variable-speed cooling fan.

If the + 12.1 Vdc is limited to 3.0 Amps maximum, the +5.1 Vdc can supply up to 12.0 Amps.
If the + 12.1 Vdc is limited to 2.0 Amps maximum, the +5.1 Vdc can supply up to 13.0 Amps.

For options that to not provide the minimum loads, there is the 54-17163 Loads Board:

The board can be jumpered (using 0 Ohm resistors) to either loads or both.

@@ Line 4: / Line 4: @@
 * [[VAXstation 2000]]
 * [[TK50Z-F Tape Expansion Box]]
+* [[RD53-F/RD54-F Disk Expansion Box]]es
+* [[RZ55-F Expansion Box]]
+Model H7848-AA is for nominal 115 V input and model H7848-AB is for nominal 230 V input.
+The power supply assembly includes an ac power connector, an ac power switch, and a variable-speed cooling fan.
+{| class="wikitable" style="text-align:center;"
+! colspan="6" | Output Power Ratings / Noise
+|-
+! colspan="3" | Voltage (V) !! colspan="2" | Current (A) !! Noise (mV)
+|-
+! Nominal !! Minimum !! Maximum !! Minimum !! Maximum !! Maximum
+|-
+| +5.10 || +4.85 || +5.35 || 3.00 || 10.00̣̣̣ || 50
+|-
+| +12.10 || +11.50 || 12.70 || 0.50 || 4.00 || 70
+|-
+| -12.00 || -11.40 || -12.60 || 0.00 || 0.25 || 120
+|-
+| -9.00 || -8.55 || -9.45 || 0.00 || 0.20 || 50
+|}
+* If the + 12.1 Vdc is limited to 3.0 Amps maximum, the +5.1 Vdc can supply up to 12.0 Amps.
+* If the + 12.1 Vdc is limited to 2.0 Amps maximum, the +5.1 Vdc can supply up to 13.0 Amps.
+For options that to not provide the minimum loads, there is the [[54-17163 Resistor Load Module Option|'''54-17163 Loads Board''']]:
+* 5V, 3A
+* 12V, 1A
+The board can be jumpered (using 0 Ohm resistors) to either loads or both.
+[[Category: DEC Power Supplies]]