Installation manual

OfficeServ 7400 System Description

3.3 Power Specification

3.3.1 OfficeServ 7400 System Power

OfficeServ 7400 operates by AC input power or battery power and supplies the system

chassis with the backup power of -54 V, -5.3 V, +3.3 V, +5 V, +12 V, or -54 V (BATT).

Table 3.19 I/O Voltage of PSU

Power Supply Devices Specifications

Power Supply Units (PSU) Input power

AC 220 V

Output power - DC -54 V, 6.6 A

- DC -5.3 V, 2 A

- DC +3.3 V, 30 A

- DC +5 V, 16 A

- DC +12 V, 1 A

- DC -54 V, 0.45 A (BATT, for backup)

External rectifier

(Model name: OfficeServ 7150)

Input power

AC 220 V (for the local use)

Output Power

DC -54 V, 20 A (Installed 2 Power unit)

3.3.2 External Rectifier

External Rectifier is used for the power supply to IP phone or to SMT-R2000 when PLIM

is used in OfficeServ 7400 system.

The additional -54 V power is to be supplied to the external device as shown in the figure

below for supplementing the insufficient internal power.

Figure 3.2 External Rectifier

Socket for External Battery

Red Line

Blue Line

OfficeServ

7400

External

Rectifier