Table of Contents
Advertisement
Quick Links
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
IRT Eurocard
Type DDA-4280
2.048 Mbps (E1) G.703
Data Distribution Amplifier
Designed and manufactured in Australia
IRT can be found on the Internet at:
http://www.irtelectronics.com
Page 1 of 17
4280-dda.ib.rev0.doc
11/03/2009
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for IRT DDA-4280
Summary of Contents for IRT DDA-4280
- Page 1 +61 2 9439 3744 +61 2 9439 7439 Email: sales@irtelectronics.com Web: www.irtelectronics.com IRT Eurocard Type DDA-4280 2.048 Mbps (E1) G.703 Data Distribution Amplifier Designed and manufactured in Australia IRT can be found on the Internet at: http://www.irtelectronics.com Page 1 of 17 4280-dda.ib.rev0.doc 11/03/2009...
-
Page 2: Table Of Contents
Installation SMU-4000 Installation Figure 1: SMU-4000 module Front and rear layouts Operation SNMP – What Is It? DDA-4280 SNMP Functions Maintenance & Storage Warranty & Service Equipment return This instruction book applies to units later than S/N 0901001. Operational Safety:... -
Page 3: General Description
The DDA-4280 data distribution amplifier is intended for use with E1 data signals conforming to the ITU Rec. G.703. The DDA-4280 is primarily intended for use in pairs with a double width rear assembly for automatic path protection applications, although it is supplied as standard with its own rear assembly for stand-alone applications. -
Page 4: Functional Diagrams
Functional Diagrams Block diagram DDA-4280 - Signal path INPUT OUTPUTS (SK5) RL1-1 O/P 1 RL5-2 Data Reg. with Output Driver Jitter Att (SK9) RL1-2 O/P 2 RL2-2 FPGA Output Driver SNMP E1Generator, (SK4) Control Change over logic, AIS Detector O/P 3... -
Page 5: Technical Specifications
< 4 VA Temperature range 0 - 50° C ambient Mechanical Suitable for mounting in IRT 19" rack chassis types with input output and power connections on the rear panel. Finish: Front panel: Grey background, black lettering & red IRT logo. -
Page 6: Zda-4300Rh Technical Specifications
ZDA-4300RH Technical Specifications Controls & alarms: Outputs: Bypass Contact to open circuit if power has failed. General Alarm Contact to open circuit if:- a. Data Loss is detected OR b. AIS is detected AND the AIS disable switch (SW3-4) is not set. In Service (Main) Path Indication Transistor switch to ground if card is active. -
Page 7: Coding Characteristic Of Itu-T G.703 2.048 Mb/S (E1) Signal
Coding characteristic of ITU-T G.703 2.048 Mb/s (E1) signal: The HDB3 (High Density Bi-polar of order 3) code as defined in G.703 for 2.048 Mb/s (and 34.368 Mb/s) is as follows: Binary 1 bits are represented by alternate positive and negative pulses and binary 0 bits by spaces. Exceptions are made when strings of successive 0 bits occur in the binary signal. -
Page 8: Configuration
Not used. SW4-8 Not used. NOTE: † AIS stands for Alarm Indication Signal. ZDA-4300RH Link Settings: When the ZDA-4300RH is used with a DDA-4280, Direct links LK1, LK3 and LK5 should be installed (default position). Page 8 of 17 4280-dda.ib.rev0.doc 11/03/2009... -
Page 9: Installation
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... - Page 10 G.703 data connections - handshake operation: The ZDA-4300RH is a double width rear assembly that takes the place of two standard rear assemblies that would normally be fitted side by side. The ZDA-4300RH supplies the necessary controls between the two main cards. Connect the two separate inputs and as many output connections as required.
-
Page 11: Smu-4000 Installation
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. - Page 12 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. DDA-4280 ZDA-4300RH OUTPUTS SHAPED OUTPUT 1 OUTPUT 2 SK 9 SHAPED...
-
Page 13: Operation
Operation Stand-alone operation: When used in a stand-alone situation, that is non-hand shaking mode, the DDA-4280 behaves as a standard 2.048 Mb/s G.703 distribution amplifier. One input is electronically split into four outputs. On loss of power to the unit the input is automatically bypassed to output 1 via on board relays. - Page 14 (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.
- Page 15 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.
-
Page 16: Dda-4280 Snmp Functions
DDA-4280 SNMP Functions: At the time of writing this manual, SNMP functions were still to be written for the DDA-4280. Contact IRT for update of status. Page 16 of 17 4280-dda.ib.rev0.doc 11/03/2009... -
Page 17: Maintenance & Storage
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.
Need help?
Do you have a question about the DDA-4280 and is the answer not in the manual?
Questions and answers