Chassis Plans CCIR-17 Technical Reference
Chapter 3 – Power Supply Options
Page 24
+/-48VDC Power Supply
The xx 48VDC Input Converter provides universal isolated 48VDC input, either positive or negative input. Thus
it can be used in a data center with centralized power of +48VDC as well as a central office with -48VDC mains.
The system is provided in a rack mountable case with military grade circular connectors.
Operating Specifications
Input Voltage
36-75VDC
Output Voltage
12.0VDC
Output Current
10A
Output Power
120W
Connectors
Input Connector
MS3102A-14SL-7P
(MIL-C-5015)
Mating Input Connector
MS3106A-14S-7S
(Straight)
MS3108A-14S-7S
(Right
Angle)
Pinouts
Pin A - Positive
Pin B – Negative
Output Connector
MS3102A-10SL-3S
(MIL-C-5015)
Mating Output Connector
MS3106A-10SL-3S
(Straight)
MS3108A-10SL-3S
(Right
Angle)
Pinouts
Pin A – Positive
Pin B – Negative
Pin C– N/C
Electrical Specifications
Efficiency 92%
Isolation
1500VDC, Input to
Output and Input to
Case
EMI Filtering
Mil-Std-461E,
CD101 and CE102 on
the
input
Operating Temperature
-40°C to +85°C
Storage Temperature
-55°C to +125°C
Table 6- 48VDC Power Supply Specifications
