TANDBERG TT-1222, Reference Manual

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Page 3-4 Reference Guide: TT1222 4:2:0 Professional receiver
ST.RE.TT1222.2
3.2 Hardware Enabled Input Options
3.2.1 Limitations
The TT1222 can not be fitted with the ASI input option and QPSK input
option at the same time.
3.2.2 ASI Input (TT1222/HWO/ASI/IN)
General
The ASI Input card supports ASI transport stream on a single BNC
connector.
Connector Details
This is a single 75 Ω BNC connector.
Setting up the ASI Input
There are no set-up requirements for the ASI Input card.
3.2.3 QPSK Input Card (TT1222/HWO/QPSK)
General
The QPSK f-connector is located on the rear of the unit. This input
interfaces directly to Low-Noise Block (LNB) and accepts an intermediate
frequency (IF) input in the 950 – 2150 MHz (L-band) range. The unit can
provide DC power, that may be used for polarisation switching on the LNB,
as well as a 22 kHz control signal. The maximum input symbol rate is
44.5 Msym/s.
Connector Details - L-Band Input
Connect the L-band output of a suitable LNB to the
F-type connector either directly or via a suitable
attenuator giving adequate consideration to lightning
and surge protection (see page 3-5).
The specification for this connector is given in Annex B, Technical
Specification.
Table 3.3: QPSK Satellite Receiver (L-band) Connector
Input Specification
Connector Type F-type, Female
Connector designation QPSK IN
Pin: Centre
Shield RF Input
Ground/Chassis
LNB Supply Refer to the next caution box
Impedance 75
Ω