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4004-dva.ib.rev0.doc 

Page 8 of 9 

15/10/2007 

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 DVA-4004

Страница 1: ...Pty Ltd A B N 35 000 832 575 26 Hotham Parade ARTARMON N S W 2064 AUSTRALIA National Phone 02 9439 3744 Fax 02 9439 7439 International 61 2 9439 3744 61 2 9439 7439 Email sales irtelectronics com Web...

Страница 2: ...er than S N 0509001 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 danger...

Страница 3: ...transistor circuit The DVA 4004 is built in 3U extended Eurocard 220 mm x 100 mm module designed to mount in the IRT FRU 3000 and FRU 1030 family of Eurocard frames Functional Block Diagram Applicatio...

Страница 4: ...0 Mb s lock selected LED green 270 360 Mb s lock selected LED yellow 360 Inverted signal LED yellow INV Power requirement Voltage 28 Vac CT 14 0 14 Vac or 16 Vdc Consumption 2 5 VA 80 mA General Tempe...

Страница 5: ...signal path and the signal path to output 1 on the rear panel with this relay energised by the 5 volts supply the input and output circuits are completed to provide normal operation of the DVA 4004 Wh...

Страница 6: ...me 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...

Страница 7: ...drawings are not to scale and are intended to show relative positions of connectors indicators and controls only DC 360 INV 270 SIG DVA 4004 N140 OUTPUT MON INVERT NORMAL J1 SK8 BYPASS ON POWER FAIL...

Страница 8: ...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 9: ...4004 dva ib rev0 doc Page 9 of 9 15 10 2007 Drawing List Index Drawing Sheet Description 805074 1 DVA 4004 serial digital VDA schematic diagram...

Страница 10: ...32A 32B 25A 16A 16B 28B 29A 29B P1 AC1 AC2 AC3 AC4 Power Supply circuit 805074s4 sch MON O P 5V SIGNAL 5V PRESENT 2 1 R45 560R 3 1 2 LK2 1 2 C10 4u7 2 1 LD5 grn 1 2 L5 1 2 C46 10nF 3 8 RL2A V23026 10...

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