DT88 - 2 Mbps audio codec
The DT88 - Compact 2 Mbps Multiplexer/Demultiplexer is the small brother of the famous COMBIMUX DT99. It is ideal for applications where space in the 19" cabinets is limited, and where two interface modules per line end are sufficient (2 Encoders or 2 Decoders or 1 Encoder plus 1 Decoder or 2 Codecs) to transmit up to two stereo signals plus data.
The most important features of DT88 are:
Small size: 19" case with a height of only 2 HU (87.5 mm) and a depth of only 260 mm.
Space-saving equipment installation: the cases can be directly stacked without the need for air space between the equipment for cooling.
Flexible rack mounting: the cases can be mounted into the 19" cabinets in three different ways:
Modularity: Possibility to insert up to two interface modules of any type desired.
High-speed transmission: Only 3.6 ms processing time from analog input to analog output via 2 Mbps interfaces with J.41 coding.
COMBIMUX DT88 is a universal system for the transmission of audio and data signals via 2 Mbps channels. Its 19” cabinet holds up to two local I/O modules, e.g. encoders and/or decoders that can be configured by jumpers and by software to operate in several ITU-T and ISO/MPEG audio coding modes. COMBIMUX DT88 does also perform the Drop & Insert functions.
The equipment is configured by a PC using the COMBISOFT program that selects the coding procedure, allocates the time slots to the various audio signals and monitors the operational state.
COMBIMUX DT 88 is built into a 19" cabinet of two height units (h x w x d = 87.5 x 485 x 260 mm) that can be equipped with two input/output modules. The power supply module, the central processor and the 2 Mbps module are integrated into the cabinet.
Mono-directional or bi-directional transmission of audio signals and data (serial and parallel data) on 2 Mbps channels
Analogue and/or digital (AES/EBU) audio interfaces
The digital interfaces are equipped with sampling rate converters
Transmission of IP signals over the 2 Mbps channel
Automatic IP back up connection in case of 2 Mbps failures
Several equipment can be cascaded (e.g. in order to increase the number of audio interfaces)
Drop & Insert functions
E1Q modules with four E1 interfaces and integrated 240 x 240 time slot switch allow complex network structures to be realised
Comfortable configuration and monitoring functions by means of laptops with user friendly control surfaces
Remote configuration of any number of COMBIMUX equipment via IP
Remote monitoring of any number of COMBIMUX equipment via SNMP
Remote monitoring and configuration of complete networks by means of the COMBIMAP software
The equipment is especially designed to operate in severe electromagnetic environments
Due to the interchangeability of the I/O modules, the possibility to configure them by software
or jumpers and to equip them with customer specified connectors, COMBIMUX satisfies the most
Redundant or non redundant 230 VAC or 48 … 60 VDC power supply, or mixed AC/DC
All modules can be replaced under power