Data General NOVA 4/C Field Engineering Maintenance Manual page 73

Data General Corporation (DGC) has prepared this manual for use by DGC personnel and customers as a guide to the proper installation, operation, and
maintenance of DGC equipment and software. The drawings and specifications contained herein are the property of DGC and shall neither be reproduced in whole or
in part without DGC's prior written approval nor be implied to grant any license to make, use, or sell equipment manufactured in accordance herewith.
Voltages Current
Output Min Max Min Max
Table 9.2 16-Slot chassis power supply specifications with battery backup
"The sum of the currents on +12V, +15V, +12 MEM, and 0.55 times the
sum of the currents on +5 MEM and -5 MEM must NOT exceed 12.5
INTERCONNECTION WITH SYSTEM
The 16-slot power supply board communicates with the
rest of the system via jacks 17 and 35 to the backpanel.
Tables 9.3 through 9.5 list each signal either generated or
received by the power supply board together with the jack
locations of the signal. See the 16-slot Backpanel Schematic,
DGC No. 001-001563, for the locations of signals on the
backpanel.
Signal | Jack Pin | Source | Destination | Description
GND J17 even Power Backpanel Power or logic
pins Supply ground
J35 pins
+5V J17 odd Power Backpanel +5V source
+5 J35 pins Power Backpanel Same as +5V if
-5V J35-27 Power Backpanel -5V source
| J35-28 Supply
-3 MEM-P | J35-19 Power Backpanel Same as -5V if
Supply battery backup
-11V J35-25 Power Backpanel EIA interface
Supply voltage
+ 12V J35 pins Power Backpanel +12V source
+12 MEM | J35 pins Power Backpanel Same as +12V
29-32 Supply if battery
backup not
configured
+ 15V J35-49 Power Backpanel +15V source
Signal | Jack Pin | Source | Destination | Description
DATA 15 | J35-3 Power Backpanel Reserved for
Supply future use
MEMD J35-21 Backpanel | Power Supply | Failure on -5
MEM
MEMOK =| J35-23 Power Backpanel +12 MEM
ONLED-P | J35-11 Power Backpanel All DC output
Supply voltages ok
PWR FAIL | J35-9 Power Backpanel Power switch
Supply off or DC power
PWR OK | 535-16 Power Backpanel All DC output
Supply voltages ok
SC DET J35-47 Power Backpanel Short circuit on
Supply Power Supply | +5V, +5
Backpanel MEM, +12V,
or +12 MEM
Table 9.4 Power supply status signals
Signal | Jack Pin | Source | Destination | Description
BI0CLK J35-6 Power Backpanel 10 MHz square
Supply wave
B20CLK J35-14 Power Backpanel 20 MHz square
Supply wave
B40CLK J35-10 Power Backpanel 40 MHz square
Supply wave
ENB10CLK | J35-15 Power Backpanel 10 MHz pulse
Supply train
LCLK J35-17 Power Backpanel 50/60 Hz
Supply square wave
PSCLK J35-5 Backpanel | Power Supply | Reserved for
5 MHz J35-7 Power Backpanel 5 MHz square
CLK Supply wave
500 Hz J35-18 Power Backpanel 500 Hz square
Supply wave
Table 9.5 Clock signals
3-9