background image

DMM

4880 & DMX

4880 Instruction Book 

Revision 0

 

www.irtelectronics.com 

Page 14 of 16 

4880

DMM_4880

DMX_ib_Rev0.doc 

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 Setup

IRT 

Communications 

www.irtcommunications.com

Содержание DMM-4880

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы: