Aria Technologies Aria-24/A ipe User manual

Aria-24/A
ipe
Aria-24/D
ipe
Digital Key Telephone System
Installation
Manual
Aria Technologies
895 Wellington Rd.
Rowville
VIC 3178
ABN : 22 090 723 925

CONFIDENTIALITY
The information contained in this manual is the property of
Aria Communications Pty. Limited.
The contents of this manual must not be copied, distributed or made
available to any third party without the prior written consent of Aria
Communications Pty. Limited.
Every effort has been made to ensure that this manual documents the
operation of the Aria-24ipe Digital Key Telephone System.
However, due to the on-going improvement and update of software, Aria
Communications cannot guarantee the accuracy of printed material after
the date of publication, nor can Aria Communications accept
responsibility for errors or omissions.
Revised manuals will be published as needed.
This manual replaces all previous issues.

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.4
Revision History
ISSUE
DATE
Contents of Changes
REMARK
Field Trial
2004.09
Initial Document
1.0
Jan 2005
CPCU4
1.1
March 2005
Add Aria-24/D ipe
1.2
October 2005
Add Expansion KSU
1.3
April 2006
Add VMIBE/AAFBE
1.4
Feb. 2008
Add CPCU4 notes
1.5
November 2008
Add WTIB/WDIB

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.4
Aria Technologies i
Table of Contents
Important Safety Instructions........................................... 1
Precaution.......................................................................... 2
Disposal of old appliance................................................. 2
The structure of manual.................................................... 3
The list of abbreviations ................................................... 4
Section 1. Introduction................................................... 6
1.1 The Aria-24ipe System highlights ...........................................................6
1.2 System connection diagram....................................................................6
1.3 System Components ................................................................................7
1.4 Specifications............................................................................................8
1.4.1 General specification ................................................................................................8
1.4.2 System capacity .......................................................................................................9
Section 2. Installation of the KSU................................ 10
2.1 Before installation...................................................................................10
2.2 Installation of the KSU............................................................................11
2.2.1 Unpacking .............................................................................................................. 11
2.2.2 KSU exterior and dimension ...................................................................................12
2.2.3 KSU with expansion module exterior and dimension..............................................13
2.2.3 Opening and closing the front cover.......................................................................14
2.2.4 Frame Earth connection .........................................................................................16
2.2.5 Power supply unit installation.................................................................................17
2.2.6 External backup batteries connection.....................................................................19
2.2.7 Wall mounting........................................................................................................20
2.2.8 Optional mounting Rack .........................................................................................22
Section 3. Installation of boards.................................. 23
3.1 Installation of the boards .......................................................................23
3.2 MBU (Main Board Unit)...........................................................................24
3.2.1 Aria-24/A ipe........................................................................................................24
3.2.2 Aria-24/D ipe .......................................................................................................25
3.2.3 Aria-24/A ipe Modular Jack Connections...........................................................26
3.2.4 Aria-24/D ipe Modular Jack Connections.............................................................29
Common Facility.............................................................................................................33

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.4
Aria Technologies ii
3.3 Installation of the CO Line Board..........................................................35
3.3.1 LCOB (CID Loop Start CO line Interface Board)......................................................35
3.3.2 STIB (Basic Rate Interface Board : Selectable S/T interface ) ................................37
3.4 Installation of the Extension Board.......................................................41
3.4.1 DTIB4 (Digital Terminal Interface Board) ...............................................................41
3.4.2 DTIB8 (Digital Terminal Interface Board) ...............................................................42
3.4.3 SLIB4 (Single Line Interface Board) .......................................................................43
3.4.4 SLIB8 (Single Line Interface Board) .......................................................................44
3.5 Installation of other Boards ...................................................................45
3.5.1 VMIB (Voice Mail interface board) ..........................................................................45
3.5.2 AAFB(Auto Attendant Function Board) ...................................................................46
3.5.3 VMIBE (Voice Mail Interface Board Enhanced)....................................................47
3.5.4 AAFBE(Auto Attendant Function Board Enhanced).............................................48
3.5.5 LANU(LAN interface Unit) .......................................................................................49
3.5.6 MODU (MODEM function Unit) ...............................................................................50
3.5.7 PLLU Aria-24/A
ipe
(Phase Locked Loop Unit) ...................................................51
3.5.8 PLLU Aria-24/D
ipe
(Phase Locked Loop Unit)...............................................51
Section 4. DECT Installation........................................ 52
4.1 Introduction..........................................................................................52
4.2 WTIB / WDIB Installation .....................................................................54
4.2.1 WTIB Installation ...............................................................................................54
4.2.2 WDIB Installation...............................................................................................55
4.3 Base Station Installation .....................................................................57
4.3.1 Mounting Base Station –1.................................................................................57
4.3.2 Mounting Base Station - 2 (Using Wedge) .........................................................58
4.4 Installation of the Ferrite core and wiring ...........................................................59
Section 5. Expansion Module Installation................. 60
5.1 Unpacking................................................................................................60
Opening and closing the front cover.............................................................61
5.2.1 Opening the front cover.......................................................................................61
5.2.2 Closing the front cover.........................................................................................62
5.3 Mounting Expansion Module.................................................................63
5.3.1 Connecting Expansion Module to KSU................................................................63
5.3.2 Wall mounting......................................................................................................64
5.3.3 Rack Mounting ....................................................................................................65
5.4 VOIM (Voice over Internet Protocol Interface Module) Installation....67
5.4.1 Pin assignment ......................................................................................................69
5.4.2 VOIU(Voice over Internet Protocol Interface Unit)..................................................70
Section 6. Connection of the Terminal........................ 71

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.4
Aria Technologies iii
6.1 The model of the Terminal .....................................................................71
6.2 Maximum cabling distance of the Terminal..........................................72
6.3 Connection of the keyset .......................................................................73
6.3.1 Digital keyset .........................................................................................................73
6.3.2 SLT.........................................................................................................................73
6.3.3 LIP-7000 Series Keyset.....................................................................................74
6.4 Connection of the additional terminals ................................................75
6.4.1 Connecting the additional terminal to MBU ............................................................75
Section 7. Starting the Aria-24ipe System .................. 76
7.1 Before starting the Aria-24ipe System..................................................76
7.2 Basic preprogramming...........................................................................76
7.2.1 Before ADMIN programming ................................................................................77
7.2.2 Button explanation...............................................................................................78
7.2.3 How to enter the programming mode..................................................................79
7.2.4 Permanent update procedure...............................................................................79
7.2.5 How to reset the system ......................................................................................79
7.2.6 Pre-programming .................................................................................................80
7.2.7 RACK SLOT ASSIGNMENT (PGM 101)..............................................................83
7.2.8 LOGICAL SLOTASSIGNMENT (PGM 103)......................................................84
Section 8. Troubleshooting ............................................ 89

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 1
Important Safety Instructions
Safety requirements
When using your telephone equipment, basic safety precautions should always be followed
to reduce the risk of fire, electric shock and injury to persons, including the following:
1. Read and understand all instructions.
2. Follow all warnings and instructions marked on the product.
3. Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol
cleaners. Use a damp cloth for cleaning.
4. Do not use this product near water, for example, near a bathtub, wash bowl, kitchen sink, or
laundry tub, in a wet basement, or near a swimming pool.
5. Do not place this product on an unstable cart, stand, or table. The product may fall, causing
serious damage to the product.
6. Slots and openings in the KSU and the back or bottom are provided for ventilation, to protect it
from overheating, these openings must not be blocked or covered. The openings should never
be blocked by placing the product on the bed, sofa, rug, or other similar surface. This product
should never be placed near or over a radiator or other heat source. This product should not be
placed in a built-in installation unless proper ventilation is provided.
7. This product should be operated only from the type of power source indicated on the product
label. If you are not sure of the type of power supply to your home, consult your dealer or local
power company.
8. Do not allow anything to rest on the power cord. Do not locate this product where the cord will
be abused by people walking on it.
9. Do not overload wall outlets and extension cords as this can result in the risk of fire or electric
shock.
10. Never push objects of any kind into this product through KSU slots or connectors as they may
touch dangerous voltage points or short out parts that could result in a risk of fire or electric
shock. Never spill liquid of any kind on the product.
11. To reduce the risk of electric shock, do not disassemble this product, but take it to a qualified
person when some service or repair work is required. Opening or removing covers may expose
you to dangerous voltages or other risk. Incorrect reassemble can cause electric shock when the
appliance is subsequently used.
12. Unplug this product from the wall outlet and refer servicing to qualified service personnel under
the following conditions:
a. When the power supply cord or plug is damaged or frayed.
b. If liquid has been spilled into the product.
c. If the product has been exposed to rain or water.
d. If the product does not operate normally by following the operating instructions. Adjust only
those controls, that are covered by the operating instructions because improper adjustment
of other controls may result in damage and will often require extensive work by a qualified
technician to restore the product to normal operation.
e. If the product has been dropped or the KSU has been damaged.
f. If the product exhibits a distinct change in performance.
13. Avoid using a telephone during an electrical storm. They may be a remote risk of electric shock
from lightning.
14. Do not use the telephone to report a gas leak in the vicinity of the leak.

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 2
Precaution
Keep the system away from heating appliances and electrical noise generating device such as
fluorescent lamps, motors and television. These noise sources can interfere with the
performance of the Aria-24ipe System.
This system should be kept free of dust, moisture, high temperature(more than 40) and
vibration, and should not be exposed to direct sunlight.
Never attempt to insert wires, pins, etc. into the system. If the system does not operate properly,
the trouble has been repaired by an authorized TELSTRA service center.
Do not use benzene, thinner, or the like, or any abrasive powder to clean the KSU. Wipe it with a
soft cloth.
Caution
This system should only be installed and serviced by qualified service personnel.
When a failure occurs which exposes any internal parts, disconnect the power supply cord
immediately and return this system to your dealer.
To prevent the risk of fire, electric shock or energy hazard, do not expose this product to rain or
any type of moisture.
To protect PCB from static electricity, discharge body static before touching connectors and/or
components by touching ground or wearing a ground strap.
Warning
Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of used batteries according to
the manufacturer‟s instructions.
Warning
This equipment will be inoperable when Mains Power fails, should it not be connected to an
alternate power source.
Disposal of old appliance
1. When this crossed-out wheeled bin symbol is attached to a product it
means the product is covered by the European Directive 2002/96/EC.
2. All electrical and electronic products should be disposed of separately
from the municipal waste stream via designated collection facilities
appointed by the government or the local authorities.
3. The correct disposal of your old appliance will help prevent potential
negative consequences for the environment and human health.
4. For more detailed information about disposal of your old appliance, please
contact your city office, waste disposal service or the shop where you
purchased the product.

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 3
The structure of manual
This installation manual is designed to provide as general information for the Aria-24ipe System. It
provides instructions for installing the hardware, and programming the Aria-24ipe System using keyset.
The structure of this manual
This manual contains the following sections :
Section 1. Introduction
Provide general information on the Aria-24ipe System, including the system specifications and capacity.
Section 2. Installation of the KSU
Describes the procedures to install the Aria-24ipe System. Detail instructions for planning the installation
site.
Section 3. Installation of the board
Describes general information of boards. Describes detail instructions for installing boards and add-on
boards.
Section 4. Connection of the Terminal
Describe the kinds of Terminal, maximum distance, and the other device connection of Terminal.
Section 5. Starting the Aria-24ipe System
Provides general information of starting the system and basic preprogramming.
Section 6. Troubleshooting
Provides information on the Aria-24ipe System and Terminal troubleshooting.

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 4
The list of abbreviations
AAFB: Auto Attendant Function Board
AC: Alternating Current
ACD: Automatic Call Distributor
ACNR: Automatic Called Number Redial
AWG: American Wire Gauge
BRI: Basic Rate Interface
CN: Connector
CTI: Computer Telephony Integration
CTS: Clear To Send
DB: Database
DC: Direct Current
DKTU/DKT: Digital Key Telephone Unit
DSR: Data Set Ready
DTIB4: Digital Terminal Interface Board 4 ports
DTIB8: Digital Terminal Interface Board 8 ports
DTMF: Dual Tone Multi Frequency
DTR: Data Terminal Ready
ETS: European Telecommunications Standards
GND: Ground
HDLC: High-level Data Link Control
IEEE: Institute of Electrical and Electronics Engineers
IP: Internet Protocol
ISDN: Integrated Service Digital Network
LDP: Keyset series
KSU: Key Service Unit
LAN: Local Area Network
LANU: LAN interface board 1 port
LCOB: Analog CO(LCO) interface board 4 ports
Max.: Maximum
MBU: Main Board Unit
Min.: Minimum
MODU: Modem Unit
PCM: Pulse Code Modulation
PFT: Power Failure Transfer
PLLU: Phase Locked Loop Unit
PJ: Pin Jack
PR: Polarity Reversal
PSTN: Public Switched Telephone Network
PSU: Power Supply Unit
PBX: Public Exchange
R.F: Radio Frequency
RAM: Random Access Memory
RD: Received Data
ROM: Read Only Memory
RSSI: Received Signal Strength Indicator
RTC: Real Time Clock
RTS: Request To Send
RX: Receive Signal
SG: Signal Ground
SLIB4: SLT interface Board 4 ports

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 5
SLIB8: SLT interface Board 8 ports
SLT: Single Line Telephone
SMDI: Station Message Detailed Information
STIB: Basic Rate S/T Interface
TD: Transmitted Data
TDM: Time Division Multiplexing
TERM: Termination
TX: Transmitting signal
UCD: User Call Distribution
UTP: Unshielded Twisted Pair
VMIB: Voice Mail Interface Board
VOIP: Voice over IP

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 6
Section 1. Introduction
1.1 The Aria-24ipe System highlights
Flexible architecture
Optional LAN Interface
Stable & enhanced voice features
Simple installation & efficient system management
-Remote admin through BRI connection
-Remote admin through PSTN modem
-Remote admin through LAN connection
Value-added features
-Distinctive voice mail
-CID (CO & SLT)
1.2 System connection diagram
V
VM
MI
IB
B/
/A
AA
AF
FB
B/
/V
VM
MI
IB
BE
E/
/A
AA
AF
FB
BE
E
I
IS
SD
DN
N
K
KT
TU
U
I
IS
SD
DN
N
-
-
P
PC
C
c
ca
ar
rd
d
V
Vi
id
de
eo
o
P
Ph
ho
on
ne
e
I
IP
P
N
Ne
et
tw
wo
or
rk
k
I
IS
SD
DN
N
L
LC
CO
O
(
(L
LC
CO
OB
B)
)
B
BR
RI
I
(
(M
MB
BU
UB
B,
,
S
ST
TI
IB
B)
)
D
DK
KT
TU
U
D
Di
ig
gi
it
ta
al
l
P
Ph
ho
on
ne
e
B
Bo
ox
x
G
G4
4
F
FA
AX
X
(
(M
MB
BU
UB
B,
,
D
DT
TI
IB
B)
)
R
RS
S2
23
32
2
(
(M
MB
BU
UB
B)
)
P
PC
C
A
Ad
dm
mi
in
n.
.
S
SM
MD
DR
R
P
Pr
ri
in
nt
te
er
r
A
AC
C
I
In
np
pu
u
t
t
2
23
30
0V
VA
AC
C
5
50
0H
Hz
z
B
Ba
at
tt
te
er
ry
y
2
24
4V
V
/
/
1
10
0A
AH
H
F
FA
AX
X
M
Mo
od
de
em
m
S
SL
LT
T
(
(M
MB
BU
UB
B,
,
S
SL
LI
IB
B)
)
M
Mu
us
si
ic
c
S
So
ou
ur
rc
ce
e
M
MO
OH
H
(
(e
ex
xt
t)
)
A
Al
la
ar
rm
m
D
De
et
te
ec
ct
ti
io
on
n
A
Al
la
ar
rm
m
S
Se
en
ns
so
or
r
B
Ba
at
tt
te
er
ry
y
(
(M
MB
BU
UB
B,
,
S
ST
TI
IB
B:
:
S
So
o)
)
R
Re
el
la
ay
y
c
co
on
nt
ta
ac
ct
t
L
Lo
ou
ud
d
B
Be
el
ll
l
LAN:10M Ethernet
CTI, EzPhone.
CTI
PC
Admi
n
Hu
b
C
CT
TI
I
Internal
MODEM
(
(M
MO
OD
DU
U)
)
(
(L
LA
AN
NU
U)
)
P
PS
ST
TN
N
(
(V
VO
OI
IM
M)
)
I
IP
P
t
tr
ru
un
nk
k
I
IP
P
t
te
er
rm
mi
in
na
al
l
I
IP
P
P
Ph
ho
on
ne
e
Hub

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 7
1.3 System Components
ITEM
Description
KSU
Key Service Unit
PSU
Power Supply Unit, 90W
ITEM
Option
Board
Description
Main
Board
Aria-24/A
MBU
Main Board Unit(4 LCOs, 1DKT, 3DKT/SLTs, and 4SLTs)
CO board
Central Office Line interface board (LCOB, STIB)
EXT board
Extension board (DTIB, SLIB)
CPCU4
Caller-ID(FSK), & Call Progress Tone detection Unit
Main
Board
Aria-24/D
MBUB
Main Board Unit(4 BRIs, 4DKT, 2DKT/SLTs, and 2SLTs)
CO board
Central Office Line interface board (LCOB, STIB)
EXT board
Extension board (DTIB, SLIB)
CPCU4
Caller-ID(FSK), & Call Progress Tone detection Unit
CO Line
boards
LCOB
Loop Start CO Interface, 4 ports
CPCU4
Caller-ID(FSK), & Call Progress Tone detection Unit
STIB
ISDN Basic Rate (S/T) Interface Board, 2 lines (4channels)
Extension
boards
DTIB4
Digital Terminal Interface Board, 4 ports
DTIB8
Digital Terminal Interface Board, 8 ports
SLIB4
SLT Interface (+36V Feed) Board, 4ports
SLIB8
SLT Interface (+36V Feed) Board, 8ports
Other boards
VMIB
Voice Mail Interface Board, 3 channels
AAFB
Auto Attendant Function Board, 2 channels
VMIBE
Voice Mail Interface Board, 4 channels
AAFBE
Auto Attendant Function Board, 3 channels
LANU
LAN interface Unit(10Mbase-T only)
MODU
MODEM unit(33Kbps)
PLLU
Phase Locked Loop Unit(for STIB)
Expansion
KSU
VOIM
Voice over Internet protocol interface module (4 channels)
VOIU
Voice over Internet protocol interface unit (4 channels)

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 8
1.4 Specifications
1.4.1 General specification
Item
Description
Specification
PSU
AC Voltage Input
240 +/-10% Volt AC @47~63Hz
AC Power
70W
Aria-24/A
AC Input Fuse
1.0A @ 250Volt AC
Aria-24/D
AC Input Fuse
1.25A @ 250Volt AC
DC Output Voltage
+5, -5, +36Volt DC
Battery Backup
Input Voltage
24 Volt DC
Battery Fuse
5.0A @ 250Volt AC
2.0A @ 250Volt AC for expansion module
Charging Current
MAX. 100mA
Battery Load Current
Max. 4.5A
(Basic KSU : Max.3A, Expansion module :
Max.1.5A)
External Relay Contact
1A @ 30 Volt DC
PFT Relay Contact
1A @ 30 Volt DC
Music Source Input
0 dBm @ 600ohm
External Paging Port
0 dBm @ 600ohm
Ring Detect Sensitivity
30Vrms @ 16~55Hz
DTMF Dialing
Frequency Deviation
Less than +/-1.8%
Signal Rise Time
MAX.5ms
Tone Duration, on time
Min.50ms
Inter-digit Time
Min.30ms
Pulse Dialing
Pulse Rate
10 pps
Break/Make Ratio
60/40% or 66/33%
Operating
Temperature
0(℃)~40(℃)
Environment
Humidity
0~80%(non condensing)
Dimension
KSU
260mm(W)*410mm(H)*86mm(D)
Expansion KSU
260mm(W)*145mm(H)*86mm(D)
Weight
KSU
2.5(kg)
Expansion KSU
VOIM: 0.58Kg
LAN
LAN Interface
10 Base -T Ethernet(IEEE 802.3)
Speed
10 Mbps
Duplex
Half duplex or Full duplex (Auto-Negotiation)
MODU
Analogue modem
Bell, ITU-T, V.34, V.32BIS, V.90
300bps up to 30Kbps speed rate
Automatic rate negotiation

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 9
Item
Description
Specification
VOIM
LAN Interface
10 / 100 Base-T Ethernet (IEEE 802.3)
Speed
10 Mbps or 100 Mbps (Auto-Negotiation)
Duplex
Half Duplex or Full Duplex (Auto-Negotiation)
VOIP Protocol
H.323 Revision 3
Voice Compression
G.711/G.726/G729/G.723.1
Voice/Fax Switching
T.38
Echo cancellation
G.165
1.4.2 System capacity
Description
Capacity/Board
Total
Time Slots
96
CO Line Ports
4/MBU
4/LCOB or 4/STIB. 8/VOIM
Max. 16
(Analog CO and/or ISDN BRI
and or IP Trunk)
Max direct Station connections
8/MBU
8/DTIB, 8/SLIB, 8/VOIM
Max. 24
Max LAN port
1/LANU
1
Max MODEM Channel
1/MODU
1
Attendant Positions
5/System
Intercom Links
Non-blocking
Paging
-. All Call
-. Internal
1 zone
5 zones
Station Speed Dial
100/station, 24 digits each
500
System Speed Dial
24 digits each
500
Last Number Redial
10
32 digits
CO Line Group
8
8
Station Group
10
10
Conference
3-Party
no limit
Music Source Input
1/MBU
1
External Paging
1/MBU
1
External Control Contact
2/MBU
2
*Power Failure Transfer *
1/MBU (Aria-24/A
ipe
only)
1
Alarm Input
1/MBU
1
RS-232C Port
1/MBU
1
DTMF Receiver
3/MBU, 2/SLIB
5
Auto Fax detection
1/MBU
1
* PFTU is not Available on the Aria-24/D
ipe

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 10
Section 2. Installation of the KSU
2.1 Before installation
Please read the following guides concerning installation and connection before installing the Aria-24ipe
System. Be sure to comply with applicable local regulations.
Safety installation instructions
When installing the telephone wiring, basic safety precautions should always be followed to reduce
the risk of fire, electric shock and injury to persons, including the followings;
1. Never install the telephone wiring during a lightning storm.
2. Never install the telephone jack in wet locations unless the jack is specifically designed for wet
locations.
3. Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
4. Use caution when installing or modifying telephone lines.
5. Anti-static precautions should be taken during installation.
Installation Precautions
The Aria-24ipe System is designed for wall mounting or floor standing. Avoid installing in the
following places.
1. In direct sunlight and hot, cold, or humid places. Temperature range : 0 to 40
2. Places in which shocks or vibrations are frequent or strong.
3. Dusty places, or places where water or oil may come into contact with the system.
4. Near high-frequency generating devices such as sewing machines or electric welders.
5. On or near computers, telexes, or other office equipment, as well as microwave ovens or air
conditioners.
6. Do not obstruct the area around the Aria-24ipe System (for reasons of maintenance and
inspection)
7. Do not block the openings at top of the Aria-24ipe System.
8. Do not stack up the optional service boards.
Wiring Precautions
Be sure to follow these instructions when wiring.
1. Do not wire the telephone cable in parallel with an AC power source, computer, telex, etc. If the
cables are run near those wires, shield the cables with metal tubing or use shielded cables and
ground the shields.
2. If the cables are run on the floor, use protectors to prevent the wires from being stepped on.
Avoid wiring under carpets.
3. Avoid using the same power supply outlet for computers, telexes, and other office equipment.
Otherwise, the Aria-24ipe System operation may be interrupted by the induction noise from such
equipment.
4. The power switch and battery switch of the Aria-24ipe System must be off during wiring. After
the wiring is completed, turn the power switch on.
5. Mis-wiring may cause the Aria-24ipe System to operate improperly.
6. If an extension does not operate properly, disconnect the telephone from the extension line and
then connect again, or turn the power of the Aria-24ipe System off and on again.
7. Use twisted pair cable for co line connection.

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
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2.2 Installation of the KSU
2.2.1 Unpacking
Open the box and check the items below:
Key service unit
Mounting template
Tie cable
Anchor plug
Screw
Fuse
Power cord
Battery cable

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 12
2.2.2 KSU exterior and dimension

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 13
2.2.3 KSU with expansion module exterior and dimension
Figure 2.2.3 shows the exterior and dimensions of the KSU:
Figure 2.2.3 KSU with expansion module exterior and dimension

Aria-24 ipe Digital Key Telephone System
Installation Manual Issue 1.5
Aria Technologies 14
2.2.3 Opening and closing the front cover
Opening the front cover
1. Turn the screw anticlockwise to loosen.
2. Lift the front cover in the direction of the arrow.
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