Grounding Conditions; Power Conditions; Table 1.1 I/O Voltage Of Power Supply Module - Samsung OfficeServ 7400 Installation Manual

CHAPTER 1. Before Installing

1.2 Grounding Conditions

The following precautions should be taken when grounding the OfficeServ 7400 system:
The grounding wire should be correctly grounded to the earth.
The flow of electric current between the grounding wire of the power plug and the ex-
posed metal surface of the system should be satisfactory.
When connecting grounding for additional external equipment to the system ground-
ing, it should be made through a single connection point.

1.3 Power Conditions

The system power supply module receives AC input power or battery power, and supplies -
54 V, -5 V, +5 V, +3.3 V, +12 V, and -56 V to the system chassis. The power condition is as
follows:
AC 100~240 V, 3 A, 50/60 Hz, or DC 48 V, 10 A
Power Supply Unit
(PSU)
External Rectifier
(Model: OfficeServ 7150)
1-2
Cautions for Grounding
- Do not connect the grounding wire of the OfficeServ 7400 system to a power
conduit of a building.
- The standards for power and grounding should comply with the country standard
and the pertinent work should be conducted according to the country standard.
- External grounding is required to prevent personal injury or system damage
caused by lightning, static electricity, or voltage surge.
- Unplug the AC power code before connecting the ground line. Failure to do so
may cause personal injury.
- The system should be connected to a wall outlet with a protective
ground.
- The GND lug on the back of the OfficeServ 7400 chassis should be grounded.

Table 1.1 I/O Voltage of Power Supply Module

Power Supply
Input Power
(AC)
Input Power
(DC)
Input Power
Output Power
Specification
AC 110V, 220V (Free Voltage)
- DC -54 V, 6.6 A
- DC +5 V, 16 A
- DC -5.3 V, 2 A
- DC +3.3 V, 30 A
- DC +12 V, 1 A
- DC -56 V, 0.4 A (for Backup)
AC 110V, 220V (Free Voltage)
DC -54 V, 10 A
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