IRT DVS?4040 User manual

DVS‐4040 Instruction Book Revision 1
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IRT Eurocard
Type DVS‐4040
5x1 ASI / SDI Switcher
Designed and manufactured in Australia
IRT can be found on the Internet at:
http://www.irtelectronics.com
I R T Electronics Pty Ltd A.B.N. 35 000 832 575
26 Hotham Parade, ARTARMON N.S.W. 2064 AUSTRALIA
National: Phone: [phone] Fax: [phone]
International: [phone] [phone]
Email: [e-mail]
Web: www.irtelectronics.com

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IRT Eurocard
Type DVS‐4040
5x1 ASI / SDI Switcher
Revision History
Revision Date By Change Description Applicable to:
0 10/09/2004 AL Original Issue. S/N: ≥0404001
1 08/03/2011 AL Link 4 information updated in Configuration section
and SNMP parameter explanation expanded upon.
S/N: ≥0404001

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IRT Eurocard
Type DVS‐4040
5x1 ASI / SDI Switcher
Instruction Book
Table of Contents
Section Page
Revision History 2
Operational Safety 3
General Description 4
Technical Specifications 5
Configuration 6
Interconnecting modules 6
Switch pulses 6
Power on reset 6
Switcher set‐ups larger than 5x1 7
Link settings 7
Wire per crosspoint operation 8
Location of links & user settings 8
Installation 9
CPS‐3050 Local control 9
TPS‐3010 Local tally panel 9
SMU‐4000 Installation 10
Figure 1: SMU‐4000 module 10
Front and rear layouts 11
SNMP – What Is It? 12
DVS‐4040 SNMP Functions 14
Maintenance & Storage 15
Warranty & Service 15
Equipment return 15
This instruction book applies to units with serial number ≥0404001.
Operational Safety:
WARNING
Operation of electronic equipment involves the use of voltages and currents that
may be dangerous to human life. Note that under certain conditions dangerous
potentials may exist in some circuits when power controls are in the OFF position.
Maintenance personnel should observe all safety regulations.
Do not make any adjustments inside equipment with power ON unless proper
precautions are observed. All internal adjustments should only be made by suitably
qualified personnel. All operational adjustments are available externally without
the need for removing covers or use of extender cards.

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IRT Eurocard
Type DVS‐4040
5x1 ASI / SDI Switcher
General Description
The DVS‐4040 digital video switcher is part of a family of “smart” switchers in Eurocard format that may be linked
and configured by the user to cover a wide range of switching and monitoring functions.
The DVS‐4040 supersedes the DVS‐3041 and provides all of its predecessor's functions together with the added
option of a plug‐in Simple Network Management Protocol (SNMP) monitoring and control module for use with
IRT’s SNMP system frame.
On board configuration is possible to allow up to four switchers to be joined for up to 20 x 1 operation1.
The switcher may be slaved to operate in conjunction with similar switchers for analogue & digital video and audio
or similar control signals.
This makes the switchers ideally suited to situations where a mixture of analogue and digital signals are present.
The CPS‐3050 local control switch panel kit converts the switcher for stand‐alone operation.
The CPS‐9001 provides a 5‐button remote control in a panel the same size as the CPS‐3050.
The CPS‐1050 and 1052 1RU remote control panels allow formation of 10 x 1, 15 x 1 or 20 x 1 combinations1.
All panels have tally LED’s and switch label inserts. Multiple panels may be used with tally to each panel.
The DVS‐4040 is designed to fit IRT’s standard Eurocard frames as well as IRT’s 4000 series frame for use with IRT’s
SNMP system and may be used alongside any other of IRT’s analogue or digital Eurocards.
Standard features:
•5 x 1 270 Mb/s SDI or ASI.
•Input equalisation to 200 metres.
•Automatic muting of inputs with no signal.
•May be cascaded1to 20 x 1.
•Local or remote control options.
•Universal wire per crosspoint or binary coded remote control.
•Optional plug‐in SNMP monitoring and control module.
•Compatible with other 3000 & 4000 series digital & analogue switchers.
1On board component configuration necessary for cascading together for > 5x1 operation.

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Technical Specifications
IRT Eurocard module
Type DVS‐4040
Signal inputs:
Number 5.
Type 270 Mb/s SDI or ASI
Equalisation Automatic to 200 metres on each input.
Automatic muting of inputs without signal.
Impedance 75 Ω.
Signal outputs:
Type SDI/ASI 2 x 800 mV ±10% into 75 Ω.
Control inputs/outputs:
Type 5 bit BCD coded parallel TTL level.
or
individual grounding contacts.
Number 1 input & 1 output.
Performance:
Switching Timing derived from a local monostable signal.
Return loss >15 dB 5 MHz to 270 MHz.
DC offset 0 V ±0.5 V.
Rise time between 0.75 and 1.5 ns.
Power Requirements 28 Vac CT (14‐0‐14) or ±16 Vdc.
Power consumption <125 mA.
Connectors: SDI/ASI BNC.
Control Plug in 10 pin HE14 dual IDC.
Other:
Temperature range 0 ‐50° C ambient.
Mechanical Suitable for mounting in IRT 19" rack chassis with input, output and
power connections on the rear panel.
Finish: Front panel Grey background, black lettering & red IRT logo.
Rear assembly Detachable silk‐screened PCB with direct mount connectors to Eurocard
and external signals.
Dimensions 6 HP x 3 U x 220 mm IRT Eurocard.
Supplied accessories Rear connector assembly including matching connectors for control
inputs & outputs.
Optional accessories TPD‐3010 front panel LED tally panel.
CPS‐3050 local control conversion with 5 pushbuttons & tally LED’s.
CPS‐9001 remote control panel with 5 pushbuttons & tally LED’s.
CPS‐1050 remote control panel with 10 pushbuttons & tally LED’s.
CPS‐1052 remote control panel with 20 pushbuttons & tally LED’s.
SMU‐4000 plug‐in SNMP Management Information Base (MIB) module.
Due to our policy of continuing development, these specifications are subject to change without notice.

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Configuration
Interconnecting modules:
The DVS‐4040 control buss can be daisy chained with other types of IRT 3000 and 4000 series switchers, such as
analogue video, audio and data switchers, and control panels. Modules are looped by joining PL5 (data out) on
one module to PL4 (data in) on the next.
Power is supplied to IRT remote control panels via the control buss. PL4 supplies the +12Vdc needed to power the
remote control panel. PL5 does not share this power rail, hence when connecting to an IRT remote control panel,
PL4 on the first switcher module in the switcher chain must be connected to PL5 on the remote control panel.
Switch pulses:
The DVS‐4040 switcher has a free running switch pulse generator for executing a crosspoint change. The period is
approximately 25 ms. When the switcher is configured as Inputs 1‐5(using LK’s 1 & 2), it uses its own switch
pulses. If configured for any other input range (e.g. Inputs 6‐10), it defaults to using the switch pulses incoming on
its PL 4 connector ‐‐ switch pulse in, and also passes these on to switch pulse out on its PL 5.
The default switcher sync pulse type, for inputs 1‐5, is the internal sync. This corresponds to link LK4 being in the
“B” position. Always leave link LK4 (if fitted) in the “B” position. The “A” position has no relevance.
LK4‐A Not Applicable (external sync).
LK4‐B Internal sync. (default position – leave in this position).
Power on reset:
Power on reset is needed so that at power on only one switcher or control panel drives the buss. LK3 on each of
the Switcher Group or the remote control panel is used to select which unit is in control at power on.
If LK3‐B is not installed and the switcher/control panel is configured to be for Inputs 1‐5then at power on that unit
will take control of the buss and select input 1.
In the case of a multi‐level set up, such as a 5x1 video with a 5x1 audio as a slave, all the slaves should have LK3‐B
installed.
LK3 has another function. If LK3‐A is not installed then any CPS‐3050 switcher panel installed on the front of the
module will act as tally only ‐‐ the operation of any of its buttons will have no effect. This also applies to the
remote control panel.

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Switcher set ups larger than 5x1
10x1, 15x1 and 20x1 switchers can be made up of multiple switchers.
In order to achieve this connections have to be made between modules for both control and signal purposes. In
addition, links on each module need to be configured to set the address range for the module.
These three operations are dealt with separately below.
Control settings:
LK 1 and LK 2 on the switchers are used to assign the group of inputs that a module will switch. See Link Settings
section below.
NOTE: Always have one at least one switcher configured as ‘Inputs 1‐5’ otherwise there will be no switch pulses
and consequently no switching action at all.
Connector PL 5 (data out) on switcher 1 ‐5 connects to PL 4 (data in) on switcher 6 ‐10 and so on.
Cables may be wired using the connectors provided or may be ordered from IRT using the following part numbers:
GDW‐3010 150 mm cable for joining adjacent modules in 3 RU frame.
GDW‐3011 300 mm cable for joining modules in 1 RU frames.
Signal settings:
When a DVS‐4040 is to be used for inputs greater than 1‐5 output 1 needs to be configured as an expansion
output on modules designated as 6‐10, 11‐15 and 16‐20, and output 2 needs to be reconfigured to act as an
expansion input on the modules designated as 1‐5, 6‐10, and 11‐15.
To configure output 1 as an expansion output, remove C37 and replace with a short circuit (either a solder bridge,
wire link or a zero ohm resistor). This DC couples the output for connection to the preceding switcher expansion
input. Output 1 on the first switcher designated 1‐5 stays as is with the capacitor C37 in place.
To configure output 2 as an expansion input, remove C38 and replace R27 with a short circuit (either a solder
bridge, wire link or a zero ohm resistor) and wire, using thin 75  coax, on the back of the main PCB from R27 to
R17. Pads exist on the PCB for this purpose.
When the data buss value is outside the range of inputs for which the module is configured the module selects the
expansion input on its motherboard as its input. Therefore, the module with the highest input range should have
its expansion output connector linked to the expansion input of the module with the next lower input range.
Note that this is a re‐entrant form of switching. For example, inputs in the range 16‐20 on a 20x1 configuration
actually pass through four active modules, consequently being subjected to a slight increase in jitter and delay.
Hence, although the DVS‐4040 can be configured for up to 20x1 operation, maximum expansion to 10x1 only is
recommended.
Link Settings:
Links LK 1 & LK 2: These set the crosspoint range of the switcher or control panel as follows:
Inputs LK 1 LK 2
1 ‐5
6 ‐10 IN
11 ‐15 IN
16 ‐20 IN IN
Link LK 3: Local / remote control selection. If the switchers on the front of this unit are to be active,
then install LK3‐A, otherwise install LK3‐B.
Link LK 4: LK4‐A: Not Applicable.
(if fitted) LK4‐B: Normal selection of switch pulses (default position – leave in this position).

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Wire per crosspoint operation
In most cases, the BCD encoded remote control system offers the most satisfactory way of controlling one or more
switchers. There are however, situations where it is necessary to provide a wire per crosspoint access for control
and / or a line per crosspoint tally system. Both of these facilities may be made available on the DVS‐4040 in a
number of ways.
To change to WPX mode the WPX links should be installed on the PCB where indicated on the PCB overlay and all
of the "Universal" links should be removed or cut.
A momentary contact closure to ground on the relevant control input will now cause the switcher to operate in
the same way as it would have if the switch on the local control panel type CPS‐3050 had been depressed.
Pin connections are as follows:
PL 4 PL 5
1A +12 Vdc out. N/C.
1B Ground. Ground.
2A Switch 5 contact. Switch 5 contact.
2B Switch 4 contact. Switch 4 contact.
3A Switch 3 contact. Switch 3 contact.
3B Switch 2 contact. Switch 2 contact.
4A Switch 1 contact. Switch 1 contact.
4B N/C. Vert. out
5A N/C. N/C.
5B N/C. N/C.
Note that no tally is available on the switch lines.
Location of links & user settings
The following location diagram is not to scale and is intended only to assist in finding the location of links and
other settings, which may need to be changed by the user during Configuration.
1B1A
2B
3B
4B
5B
5A
2A
3A
4A
LK4
LK3
LK1 LK2
WPX
CONTROL
UNIVERSAL CONTROL
A
B
RV1
A
B
Plug-in
SNMP

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Installation
Pre‐installation:
Handling:
This equipment may contain or be connected to static sensitive devices and proper static free handling
precautions should be observed.
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures
should be followed when inserting or removing cards from these bags.
Power:
AC mains supply: Ensure that operating voltage of unit and local supply voltage match and that correct rating
fuse is installed for local supply.
DC supply: Ensure that the correct polarity is observed and that DC supply voltage is maintained within
the operating range specified.
Earthing:
The earth path is dependent on the type of frame selected. In every case particular care should be taken to ensure
that the frame is connected to earth for safety reasons. See frame manual for details.
Signal earth: For safety reasons a connection is made between signal earth and chassis earth. No attempt should
be made to break this connection.
Installation in frame or chassis:
See details in separate manual for selected frame type.
Digital Video Connections:
Inputs and outputs are 75 ΩBNC type for connection with high quality 75 Ωcoaxial cable. Inputs are self‐
terminating. No loop through facility is available. For applications requiring multiple destinations, a 270 Mb/s
digital type distribution amplifier should be used.
CPS‐3050 ‐Local control:
All switchers are sold with a plain front panel with DC power LED and printed with the switcher type number and
IRT logo. The CPS‐3050 provides the necessary components to add control buttons and tally to the front panel.
Before fitting the CPS‐3050, the original front panel and LD 1, LED DC indicator, must be removed.
The CPS‐3050 PCB should then be pressed carefully into place making sure that the pins on the CPS‐3050 plug
mate correctly with the socket on the main module PCB. The front plate is then fitted using the screws and spacers
provided.
For local switching, to take effect link LK 3 must be placed in the “A” position. See Configuration for details.
TPS‐3010 ‐Local tally panel:
All switchers are sold with a plain front panel with DC power LED and printed with the switcher type number and
IRT logo. The TPS‐3010 provides the necessary components to add tally LED indicators to the front panel. This is
desirable when switchers are controlled only by remote connections that are distant from the switcher.
The TPS‐3010 provides confidence that a slave switcher has responded to the master command and can therefore
greatly assist in finding faults in inter‐module wiring.
Before fitting the TPS‐3010, the original front panel and LD 1, LED DC indicator, must be removed.
The TPS‐3010 PCB should then be pressed carefully into place making sure that the pins on the TPS‐3010 plug
mate correctly with the socket on the main module PCB. The front plate is then fitted using the screws and spacers
provided.

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SMU‐4000 Installation
The SMU‐4000 plug‐in SNMP management controller module can only be fitted to IRT’s 4000 series modules that
are capable of being SNMP upgradeable. To determine whether a module is SNMP upgradeable, a square section
on the main PCB is silk screened and fitted with three multipin sockets – as shown below:
This is where the SMU‐4000 plug‐in SNMP management controller module is fitted. The three sets of multipins
on the underside of the SMU‐4000 line up with the three sets of multipin sockets on the main PCB module.
Align all pins and then gently press the SMU‐4000 all the way down into place.
If the SMU‐4000 is not already programmed with the correct firmware to match the module that it is being
plugged into, it then needs to be programmed via the pins on the topside of the SMU‐4000.
Note that installation will generally be done by IRT Electronics at the time of ordering.
Note also that an SMU‐4000 will only be functionally operational when the main module that it is plugged into is
fitted into an IRT SNMP capable frame fitted with a CDM‐xxxx SNMP agent and being interrogated by a suitable
Network Management System.
1J2
1J1 1J3
Figure 1: SMU-4000 module

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Front & rear panel connector diagrams
The following front panel and rear assembly drawings are not to scale and are intended to show connection order
and approximate layout only.
DC
DVS-40 40
N140
CP S-30 50
N140
Standard
Fitted with
CPS‐3050 Local
Control Panel
OUTPUT 1
5x1 SW
INPUTS
1
2
3
4
5
I/O
PL 4 IN
PL 5 OUT
INPUTS
SK1
P3
SK7
SK2
SK3
SK4
SK6
SK5
P2

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SNMP
What Is It?
SNMP stands for Simple Network Management Protocol. It is an application layer protocol for managing IP
(Internet Protocol) based systems. SNMP enables system administrators to manage system performance, and to
find and solve system problems. SNMP runs over UDP (User Datagram Protocol), which in turn runs over IP.
Three types of SNMP exist: SNMP version 1 (SNMPv1), SNMP version 2 (SNMPv2) and SNMP version 3 (SNMPv3).
It is not the intention here to discuss the differences between various versions, only to bring attention to the fact
that IRT Electronics modules, fitted with SNMP capability, use SNMPv1.
An SNMP managed network consists of three key components: Network Management Systems (NMS), agents, and
managed devices.
An NMS is the console through which the network administrator performs network management functions, such
as monitoring status (e.g. alarm states) and remote controlling, of a set of managed devices. One or more NMSs
must exist on any managed network. Generally the NMS is a computer running third party SNMP control software.
There are a number of third party SNMP software applications currently available on the market.
An NMS polls, or communicates with, an agent. An agent is a network management software module that resides
in a managed device. An agent has local knowledge of management information and translates that information
into a form compatible with SNMP. The agent, therefore, acts as an interface between the NMS and the managed
devices. The NMS sends a request message, and control commands for the managed devices, to the agent, which
in turn sends a response message, containing information about the managed devices, back to the NMS.
A managed device contains an SNMP agent and resides on a managed network. Managed devices collect and store
management information and make this information available to NMSs using SNMP.
Managed device agent variables are organised in a tree structure known as a Management Information Base
(MIB). Within the MIB are parameters pertaining to the managed device. An Object Identifier (OID) number within
the MIB defines the managed device type. This is a unique number specific to the model of managed device. Other
information relating to the device is also stored, information such as alarm states, controllable settings, etc. The
MIB tree is organised in such a way that there will be no two MIB files with conflicting placements.
Normally an NMS polls an agent for information relating to the MIB in a managed device to be sent back to the
NMS. When certain conditions are met within the MIB, such as major alarm conditions, for example, the agent
automatically sends what is known as a trap to the NMS without any prompting from the NMS. This allows
automatic notification of a predetermined event.
NMS
NMS
IP
Network
MIB
SNMP Agent
Protocol Engine SNMP Agent
MIB
SNMP Agent
Protocol Engine SNMP Agent
MIB
SNMP Agent
Protocol Engine SNMP Agent
SNMP Block Diagram

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SNMP with IRT Products:
IRT Electronics currently employs SNMPv1 with its SNMP capable frames. The frame acts as an agent when fitted
with a CDM‐xxxx module. This module has its own designated slot next to the power supply so as to not affect the
number of modules that the frame will take. Communication between the NMS, the frame and its loaded modules
are via this CDM‐xxxx module. Note that the NMS software is third party and not supplied by IRT Electronics.
Ethernet connection for SNMP operation is via an RJ45 connector on the rear of the frame, below the mains inlet.
Ethernet rate runs at either 10 baseT or 100 baseT.
Frame parameters, such as Name, Address and Location, are set via an RS232 interface, a D9 connector on the
rear of the frame below the mains inlet. A software terminal emulator, such as Tera Term or HyperTerminal, is
used for setting and reading the parameters of the frame.
IRT modules that are SNMP compatible need a plug‐in SMU‐4000 module with a program relevant to the module
that it is plugged into. Depending on the module, besides the module identification, parameters such as alarm
states, inputs and controls etc. are communicated to the CDM‐xxxx agent via a data bus on the rear of the frame.
Thus the CDM‐xxxx collects information on what is loaded within the frame, what positions they occupy, and their
current status for communication to the NMS when the NMS sends a request for information.
In the event of a major alarm from any of the SNMP compatible modules, or power supplies, a trap is
automatically sent by the CDM‐xxxx agent to the NMS without any prompting by the NMS. This alerts the operator
to any fault conditions that may exist that need immediate attention.
FRU-4000
FRAME
110/240 V 50/60 Hz
0.7 A (max.)
FUSES
110/120 Vac
1A S.B.
220/240 Vac
500 mA S.B.
AS3260 approval no.: CS6346N
Ass. no.: 804692
+-
48Vdc
Alarm
RS232
Ethernet
IRT SNMP Connections
IRT modules fitted
with SMU-4000 PSU’s
CDM-xxxx
IRT SNMP Frame
IRT SNMP Frame
IRT modules fitted
with SMU-4000 PSU’s
CDM-xxxx
IP
Network Ethernet Cable
Ethernet Cable
Ethernet Cable
NMS
IRT SNMP Setu
p

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DVS‐4040 SNMP Functions:
With the DVS‐4040 fitted with the optional plug‐in SMU‐4000 SNMP module, programmed with firmware to suit,
and installed in an IRT frame with SNMP capability, it is possible to remotely monitor the presence of inputs and
which input is currently switched to the output, as well as to remotely select desired input to output, using an
NMS.
Alarm States:
irt4040InputsPresent ‐Read the status of the inputs present:
(1) axxxx: Input 1 present only. Inputs 2, 3, 4 & 5 not present.
(2) xbxxx: Input 2 present only. Inputs 1, 3, 4 & 5 not present.
(3) abxxx: Inputs 1 and 2 present only. Inputs 3, 4 & 5 not present.
(4) xxcxx: Input 3 present only. Inputs 1, 2, 4 & 5 not present.
(5) axcxx: Inputs 1 and 3 present only. Inputs 2, 4 & 5 not present.
(6) xbcxx: Inputs 2 and 3 present only. Inputs 1, 4 & 5 not present.
(7) abcxx: Inputs 1, 2 and 3 present only. Inputs 4 & 5 not present.
(8) xxxdx: Input 4 present only. Inputs 1, 2, 3, & 4 not present.
(9) axxdx: Inputs 1 and 4 present only. Inputs 2, 3 & 5 not present.
(10) xbxdx: Inputs 2 and 4 present only. Inputs 1, 3 & 5 not present.
(11) abxdx: Inputs 1, 2 and 4 present only. Inputs 3 & 5 not present.
(12) xxcdx: Inputs 3 and 4 present only. Inputs 1, 2 & 5 not present.
(13) axcdx: Inputs 1, 3 and 4 present only. Inputs 2 & 5 not present.
(14) xbcdx: Inputs 2, 3 and 4 present only. Inputs 1 & 5 not present.
(15) abcdx: Inputs 1, 2, 3 and 4 present only. Input 5 not present.
(16) xxxxe: Input 5 present only. Inputs 1, 2, 3 & 4 not present.
(17) axxxe: Inputs 1 and 5 present only. Inputs 2, 3 & 4 not present.
(18) xbxxe: Inputs 2 and 5 present only. Inputs 1, 3 & 4 not present.
(19) abxxe: Inputs 1, 2 and 5 present only. Inputs 3 & 4 not present.
(20) xxcxe: Inputs 3 and 5 present only. Inputs 1, 2 & 4 not present.
(21) axcxe: Inputs 1, 3 and 5 present only. Inputs 2 & 4 not present.
(22) xbcxe: Inputs 2, 3 and 5 present only. Inputs 1, & 4 not present.
(23) abcxe: Inputs 1, 2, 3 and 5 present only. Input 4 not present.
(24) xxxde: Inputs 4 and 5 present only. Inputs 1, 2 & 3 not present.
(25) axxde: Inputs 1, 4 and 5 present only. Inputs 2 & 3 not present.
(26) xbxde: Inputs 2, 4 and 5 present only. Inputs 1 & 3 not present.
(27) abxde: Inputs 1, 2, 4 and 5 present only. Input 3 not present.
(28) xxcde: Inputs 3, 4 and 5 present only. Inputs 1 & 2 not present.
(29) axcde: Inputs 1 and 5 present only. Inputs 2, 3 & 4 not present.
(30) xbcde: Inputs 2, 3, 4 and 5 present only. Input 1 not present.
(31) abcde: All inputs 1, 2, 3, 4 and 5 present.
(127) xxxxx: No inputs present.
irt4040InputSelected ‐Read and set the number of the currently selected input (1 to 20).
irt4040Reset ‐Unit reset control. A set with a value of 2 sent to this OID will cause a system reset to
occur.
irt4040Trap ‐A Trap is sent , if enabled, when an alarm occurs or clears, or when an input selection
changes
(1) enabled: Traps enabled.
(2) disabled: Traps disabled.

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Maintenance & Storage
Maintenance:
No regular maintenance is required.
Care however should be taken to ensure that all connectors are kept clean and free from contamination of any
kind. This is especially important in fibre optic equipment where cleanliness of optical connections is critical to
performance.
Storage:
If the equipment is not to be used for an extended period, it is recommended the whole unit be placed in a sealed
plastic bag to prevent dust contamination. In areas of high humidity a suitably sized bag of silica gel should be
included to deter corrosion.
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures
should be followed when inserting or removing cards from these bags.
Warranty & Service
Equipment is covered by a limited warranty period of three years from date of first delivery unless contrary
conditions apply under a particular contract of supply. For situations when “No Fault Found” for repairs, a
minimum charge of 1 hour’s labour, at IRT’s current labour charge rate, will apply, whether the equipment is
within the warranty period or not.
Equipment warranty is limited to faults attributable to defects in original design or manufacture. Warranty on
components shall be extended by IRT only to the extent obtainable from the component supplier.
Equipment return:
Before arranging service, ensure that the fault is in the unit to be serviced and not in associated equipment. If
possible, confirm this by substitution.
Before returning equipment contact should be made with IRT or your local agent to determine whether the
equipment can be serviced in the field or should be returned for repair.
The equipment should be properly packed for return observing antistatic procedures.
The following information should accompany the unit to be returned:
1. A fault report should be included indicating the nature of the fault
2. The operating conditions under which the fault initially occurred.
3. Any additional information, which may be of assistance in fault location and remedy.
4. A contact name and telephone and fax numbers.
5. Details of payment method for items not covered by warranty.
6. Full return address.
7. For situations when “No Fault Found” for repairs, a minimum charge of 1 hour’s labour will apply,
whether the equipment is within the warranty period or not. Contact IRT for current hourly rate.
Please note that all freight charges are the responsibility of the customer.
The equipment should be returned to the agent who originally supplied the equipment or, where this is not
possible, to IRT direct as follows.
Equipment Service
IRT Electronics Pty Ltd
26 Hotham Parade
ARTARMON
N.S.W.2064
AUSTRALIA
Phone: [phone] Fax: [phone]
Email: [email protected]