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Aria-34e
Digital Key Telephone System
Note: The DVIB board should be installed in slot #1 or slot #4~7.
Basic
Configuration
Expanded
Configuration
Figure 21. DVIB, DMEU/4 & ADPU INSTALLATION
4.5.22 PFTU (POWER FAILURE TRANSFER UNIT) INSTALLATION
The major function of the PFTU is to achieve an alternate connection to the system‟s CO line
ports when the AC power fails. There are two different types of PFTU. One (PFTU-I) is installed
on the 4LCO board and two CO lines on this board can be switched. The other PFTU is
connected to MBU to select any CO lines that user requires and the PFTU is installed externally
from the system KSU.
4.5.23 PFTU-I
This optional board is installed on the 4LCO board and switches the first two CO lines to single
line telephones directly during AC power or processor failure. Single line telephones are
connected to the connector CN2 and CN4 on this board. If a SLT is connected to CN2, this SLT
can also be used as one of the system‟s extensions during normal operating state (ie. System
operational) by connecting CN1 to a port of the 4SLI or SLIB. This situation is also true for the
connector CN3 and CN4.
Refer to Figure 22.
Aria Communications Pty Ltd.
A.C.N. 090 723 925
Number of Voice
4 channels
Channels
System Voice
4 minutes
Announcement
ACD/UCD Message
3 minutes
User Greeting
17.5 minutes
ADPU
+4 channels
DMEU4
17.5 minutes
4-25
Installation
Rev 1.3
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