Tiernan TE3000, Installation And Operation Manual

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16 Installing the TE3000
ASI Out Primary
ASI Out Primary is a female BNC connector with 75
Ω
impedance. The port outputs a DVB- compliant ASI transport stream at rates
between 1 and 70 Mbps.
ASI Out Primary is used for normal operation and is typically cabled to the Mod
ASI In connector with a short (14”) coaxial cable.
The transport stream output on ASI Output Primary is a spare and is not bypassed
in case of failure.
ASI Out Secondary
ASI Out Secondary is a female BNC connector with
75
Ω
impedance. The port outputs a DVB-compliant ASI transport stream at rates
between 1 and 70 Mbps.
ASI Out Secondary port can be used to output the transport stream of one TE3000
to the multiplexer of another TE3000 for MCPC operation. In this configuration,
this port is cabled to the Mux ASI In port of the next TE3000 in the MCPC chain.
If a fault condition or power failure exists, the input transport stream, which is
connected to ASI TS In, is bypassed directly to ASI Out Secondary through a
passive bypass relay. This ensures that only the program associated with the failed
TE3000 in an MCPC chain of encoders or in a redundant configuration is
interrupted by the failure.
ASI Out Secondary can also be used to monitor the transport stream.
SMPTE -310
This port is used to output a SMPTE-310 compatible transport
stream.
Mod ASI In
Mod ASI In, located on the TMOD-6000, is a female BNC
connector with 75
Ω
impedance. The port accepts the transport stream from either
ASI Out port.
The Mod ASI In transport data is processed according to DVB standards and
output from the integrated TE3000 QPSK modulator on the port labeled Tx IF
Out.
Modulator Output to
Upconverter
Connections
The internal modulator outputs a modulated IF signal, which is connected to an
upconverter.
Connections are made through the Tx If Out port. This port is a female BNC
connector that outputs a 70 Mhz, DVB-compliant, QPSK modulated, FEC
encoded IF signal at symbol rates from 1 to 20 MSps.
Before you cable the modulator output to the upconverter, turn the modulator off
until you are ready to begin satellite transmissions.
To cable the modulator output to an upconverter, connect the output of the internal
modulator from Tx IF Out to an IF-to-RF upconverter.