DAA-4400 AES/EBU DIGITAL AUDIO DISTRIBUTION AMPLIFIER Revision History: Revision Date Change Description Applicable to: 15/03/2005 Original Issue. Serial numbers > 0406001 29/01/2010 Front panel layout changed and AES sample rate Serial numbers > corrected. 0406001 08/06/2016 Upgraded to I.R.T. Communications company name.
Signal Connections SMU-4000 Installation Figure 1: SMU-4000 module Front and Rear Layouts SNMP – What Is It? DAA-4400 SNMP Functions Maintenance & Storage Warranty & Service This instruction book applies to serial numbers > 0406001 I.R.T. Communications Pty Ltd | www.irtcommunications.com...
DAA-4400 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 dangerous potentials may exist in some circuits when power controls are in the OFF position.
The DAA-4400 is designed to provide a solution to most AES/EBU digital audio signal distribution requirements. The DAA-4400 will operate at AES sample rates from 34 to 54 kHz and may be used with non-AES digital signals that have a net zero DC content.
BNC. Other: Temperature range 0 - 50° C ambient. Mechanical Suitable for mounting in IRT 19" rack chassis with input, output and power connections on the rear panel. Finish Front panel Grey background, black lettering & red IRT logo. Rear assembly Detachable silk-screened PCB with direct mount connectors to Eurocard and external signals.
SW1 SW2 Output Impedance: Output impedance is determined by the choice of rear assembly. The DAA-4400 is generally supplied standard with the ZAA-4401 110 Ω balanced output rear assembly. The ZAA-4400 75 Ω unbalanced output rear assembly is available at time of ordering. Both rear assemblies take either balanced or unbalanced inputs.
See details in separate manual for selected frame type. Signal Connections: Signal connections are made to the connectors on the selected rear panel of the DAA-4400. The input signal can be either 75 ohms unbalanced terminating or 110 ohms balanced terminating, the input selection is done be links SW1, SW2 on the module pcb near pin 32 of the input connector.
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.
IRT modules, fitted with SNMP capability, use SNMPv1. An SNMP managed network consists of three key components: Network Management Systems (NMS), agents, and managed devices.
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IRT modules that are SNMP compatible may need an optional plug-in SNMP 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.
DAA-4400 SNMP Functions: With the DAA-4400 fitted with the optional plug-in SMU-4000 SNMP module, programmed with the firmware to suit, and installed in an IRT 4000 series frame with SNMP capability, can be interrogated by an SNMP Network Management System (NMS).
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.
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