The HDA-4521 HD/SD dual serial digital reclocking video
distribution amplifier provides the user with a single
standard module to cover a wide range of
distribution and monitoring functions for High Definition (HD) and/or Standard Definition (SD) digital
signals. Two triple output reclocking distribution amplifiers are provided on the one card.
As well as accepting HD or SD signals, the HDA-4521 will also accept ASI signals. To provide for the ploarity sensitive nature of ASI signals, all outputs of the HDA-4521 are in phase with the inputs.
Serial digital signals suffer severe deterioration
over relatively short cable distances. This is especially so with the HD high data rate. The HDA-4521 provides a means of extending the working distances
that can be achieved by equalising and retransmitting
the data mid route. The HDA-4521 will automatically reclock either 1.485Gb/s HD signals or lower rate 270Mb/s SD signals. Both sides of the HDA-4521 can be run independently allowing a mixture of signal types to be used. |
On board link settings allow either of the inputs to feed all outputs to create a one in, six out distribution amplifier.
Front panel LEDs indicate when an input signal is present and whether the output is an HD or SD type.
Separate alarm outputs switch to ground for indication of loss of input signal or loss of power. An optional SNMP (Simple Network Management Protocol) plug in module is available for remote monitoring and control when used in conjunction with IRT's 4000 series frame fitted with SNMP capability. Extra features are available via SNMP such as automatic switching on loss of one input to the other input.
The HDA-4521 is designed to fit IRT's 4000 series 3RU frames for use with IRT's SNMP system as well as being suitable with IRT's 1000 series 1RU Eurocard frames and may be used alongside any other of IRT's Eurocards. |
