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4007-dda.ib.rev1.doc 

Page 11 of 12 

15/09/2008 

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: 

61 2 9439 3744 

Fax:  61 2 9439 7439 

Email: [email protected] 

Содержание DDA-4007

Страница 1: ...d 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 P...

Страница 2: ...turn 11 Drawing Index 12 This instruction manual applies to DDA 4007 later than S N 0809051 Operational Safety WARNING Operation of electronic equipment involves the use of voltages and currents that...

Страница 3: ...s to provide the number of outputs required This provides a more economic solution than using multiple reclocking DA s and minimises jitter increase due to unnecessary re clocking The rear assembly no...

Страница 4: ...ators Power LED green for 5 V Signal present LED green when signal present Alarm Signal loss Contact closure Link selectable NO NC Power requirement Voltage 28 Vac CT 14 0 14 or 16 Vdc Consumption 2 5...

Страница 5: ...hat 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 mad...

Страница 6: ...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 corr...

Страница 7: ...l connector diagrams The following front panel and rear assembly drawings are not to scale and are intended to show relative positions of connectors indicators and controls only SK10 2 Alarm SK10 1 Gn...

Страница 8: ...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...

Страница 9: ...ed 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...

Страница 10: ...tional plug in SMU 4000 SNMP module programmed with firmware to suit and installed in an IRT 4000 series frame with SNMP capability it is possible to remotely monitor the presence of an input and the...

Страница 11: ...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...

Страница 12: ...the diagrams are optional and are not included on standard production units They are shown to assist with interpretation of additional or optional functions which may be included or are necessary for...

Страница 13: ...100nF 5V 5V MON O P SK101 SIGNAL grn 2 1 R39 560R 2 1 LD2 HLMP 1503 5V ALARM CIRCUIT CONTACT CLOSURE OR BREAK TO GROUND ON ALARM AS SET BY LK1 3 2 1 Q1 BSS123 1 2 C37 4u7 R1 R9 220R L1 L9 15nH 3 8 RL...

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