Page 63 - Eurotek Catalogue

BOARD PLUG-IN ek-mpa/4

“ASI transparent

multiplexer”

The EK-MPA/4 board is a 4 ASI to ASI transparent
multiplexer (see EK-MPA/4 block scheme) and it is
composed by four physical input represented by the four
input BNC connectors located in the board panel, plus
two internal inputs that are directly connected with the Features
EK-MFR/2 by the internal connections matrix line

(located in the EK-MFR/2).All the inputs are interfaced  4+2 different ASI input
with the VC mapper unit so the transport stream present  Complete web
on a particular input can be mapped to one of the eight management
Virtual Channels (VC1 – VC8) of the VC mapper. If an
input is not used it can be connected, by the menu, to Applications
the Waste container. After the mapping procedure
 Digital Microwave Links
between the input transport streams and the desiderated
Virtual Channels an unique transport stream is  DTV, DVB-T, DVB-S
generated with the data PID assigned by the menu. If  Management of several ASI
the insertion of the SI TABLE is required the transport signals
stream is multiplexed with the signals of the table
generator and sent to the output module. The output

module is directly connected with the two physical
output connectors, represented by the two BNC
connectors reported on the board panel, plus an internal
output signal connected to the EK-MFR/2 between the
internal matrix line connection (located in the EK-
MFR/2). A particular hardware permits during a fault or

when the board is not powered up, to carry out the
transport stream present on the ASI input BNC “IN1” to
the ASI output BNC “OUT M” connector (bypass
mode). While on the “OUT S” BNC connector the
output transport stream is present if the board in
powered up only. For a correct functioning of EK-

MPA/4 board must be utilized in relation with the EK-
DMA/4 board.