IRT Communications DMM-4880 Instruction Manual Download

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DMM

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4880 & DMX

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4880 Instruction Book

Revision 0

www.irtelectronics.com

Page 1 of 16

4880

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DMM_4880

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DMX_ib_Rev0.doc

IRT Eurocard

Type DMM

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4880 & DMX

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4880

4 STM

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1 to STM

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Multiplexer / De

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Multiplexer

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: (02) 9439 3744

Fax: (02) 9439 7439

International:

+61 2 9439 3744

+61 2 9439 7439

Email: sales@irtelectronics.com
Web: www.irtelectronics.com

DANGER

Avoid direct exposure to beam

Peak power

2 mW

Wavelength 1270–1610nm

Class 1 LASER Product

Invisible LASER radiation-

IRT

Communications

www.irtcommunications.com

Summary of Contents for DMM-4880

Page 1: ...p 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 02 9439 3744 Fax 02 9439 7439 International 61 2 9439 3744 61 2 94...

Page 2: ...IRT Eurocard Type DMM 4880 DMX 4880 4 STM 1 to STM 4 Multiplexer De Multiplexer Revision History Revision Date By Change Description Applicable to 0 13 08 2010 AL Original Issue Firmware versions DMM4...

Page 3: ...Description 5 Technical Specifications 6 Configuration 7 Installation 8 Signal Connections 8 DMM 4880 8 DMX 4880 10 Front Panel LEDs 11 DMM 4880 11 DMX 4880 11 Front and rear layouts 12 Operation 13...

Page 4: ...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 Optical Safety The l...

Page 5: ...k into the original four 155Mb s STM 1 signals Front panel indications on the DMX 4880 de multiplexer shows if valid encoded STM 1 signals are present SNMP Simple Network Management Protocol is availa...

Page 6: ...or loss of power MINOR Open circuit on no valid output STM 1 streams present or loss of power Optical Optical path loss2 3 to 18 dB with PIN detector typically 20dB Optical fibre Designed for use wit...

Page 7: ...0 card and the CDM card SNMP Agent of the frame major and minor SNMP alarms that are reported to the CDM card of the frame can be disabled DMX 4880 SW1 1 Not used SW1 2 Not used SW1 3 Not used SW1 4 N...

Page 8: ...terminated in 75 Input cable equalisation is automatic for up to 200m of high quality 75 coaxial cable Belden 8281 or equivalent No adjustments are required STM 4 Reference Input The STM 4 reference...

Page 9: ...SK 7 IN4 PL4 SK10 SK 2 IN3 PL3 SK 11 IN2 SK 6 IN1 1 2 3 1 GND 2 MINOR 3 MAJOR STM 1 I P4 STM 1 I P1 STM 1 I P3 ALARM O P STM 1 I P2 DMM 4880 Rear Assembly Connections With STM 4 Ref I P option STM 4...

Page 10: ...nt to the corresponding STM 1 electrical input on the matching DMM 4880 Alarm Outputs Two relay alarm output states are provided via a phoenix style 3 pin plug Pin 3 is designated as Major pin 2 is de...

Page 11: ...put signal to synchronize with Only valid for DMM 4880 fitted with optional STM 4 reference input port The ALARM LED does not illuminate as there is no Major Alarm associated with the DMM 4880 DMX 488...

Page 12: ...ale and are intended to show connection order and approximate layout only I P 1 I P 2 I P 4 I P 3 ALARM REF I P DC DMM 488 0 N140 O P 1 O P 2 O P 4 O P 3 ALARM DC DMX 488 0 N140 SK 9 OUT3 PL4 SK10 SK...

Page 13: ...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 devic...

Page 14: ...tible 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...

Page 15: ...the Urgent and Non Urgent alarms noAlarms 1 UrgentAlarms 2 no or invalid STM 4 input signal present nonUrgentAlarms 3 no valid STM 1 signals encoded on any channel All STM 1 signals are AIS An indica...

Page 16: ...ed 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 pos...

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