Table of Contents
Advertisement
Aria-34e
Digital Key Telephone System
4.5.4 POWER VOLTAGE SELECT
The Power Supply Unit is set to 240VAC operation at the factory prior to shipping. There are no
other user adjustments.
4.5.5 BATTERY BACKUP INSTALLATION
The system can be backed-up by external batteries in case of 240VAC power failure. The
connector for the external battery is located on the base of the KSU. Connection from the Power
Unit to the external battery is via a GoldStar cable-assembly designed for this purpose.
a) A separate external 24 Volt DC battery or two separate 12 Volt DC batteries should be
provided.
b) Two 12 V DC batteries are serially connected to the BAT.+,- lead of AC/DC power
supply for the basic cabinet. See following Figure 4.
c) The battery is charged by the charging circuit in the AC/DC power supply during
normal system operation. During AC power loss, the battery will supply power for the
system without power interruption.
d) The chart below gives the approximate backup time for the Aria-34e series.
Aria Communications Pty Ltd.
A.C.N. 090 723 925
Figure 3. PSU Connection
4-7
Installation
Rev 1.3
Advertisement
Table of Contents
