IRD-2900 Series Professional Integrated Receiver ... - TBC Integration

The available options are:
User Manual
Operation and Management
• OFF – No voltage is supplied to the LNB. Use this option either when
cascading IRDs using the loop-through connector on the L-Band interface or
when this voltage is supplied to the LNB by external source.
• 13V (Vertical) – Vertical polarization
• 18V (Horizontal) – Horizontal polarization
LNB 22 KHZ
The receiver controls the LNB band by sending a 22 kHz signal. When the signal
is sent, the LNB uses its High Band Local Oscillator (L.O.). When the signal is not
sent, the LNB uses its Low Band L.O.
The local oscillator is used to convert the signal from Ku-Band or C-Band to L-
Band. Two local oscillators exist one for each band to leverage full spectrum.
LNB LNB LNB 22 22 22 KHz KHz
KHz
1���� OFF OFF (Low (Low Band)
Band)
2���� ON ON ON (High (High Band)
Band)
The available options are:
• OFF – Low band L.O.
• ON – High band L.O.
INPUT SIGNAL SOURCE
The Input Signal Source menu selects the RF interface source through which to
acquire the signal to be received. This menu exists only in Dual RF Input IRD-
2900 devices.
1���� IN IN-A IN
2���� IN IN-B IN
The available options are:
Input Signal Source
• IN-A – the IRD-2900 receives the input signal from RF IN 1 interface
• IN-B - the IRD-2900 receives the input signal from RF IN 2 interface
Page 4-40 (Rev. 4.6/ SW v1.80/ December 2007)