Tiernan TDR7, Manual

Page: 36 / 226

Chapter 2 22
Installing the TDR7
As illustrated below, the J50 RF Input is the L–band input port.
IFL Input Port Specifications
T
IERNAN
C
OMMUNICATIONS,
I
NC.
Model
TDR7
Ser. No. 00000XX
Made in U.S.A.
Input Data A/B
Transport Output RF IN
J50 RF
Input
J50 RF In is an F–Type, female
connector, 75
Ω
impedance,
that accepts RF from 950 to
2050
MHz at power levels
between – 85 dBm and
–20
dBm. J50 also outputs LNB
power, <500 mA DC at either
12 V or 18V.
NOTE: LNB Power
The TDR7 supplies the LNB power at 12 V or 18 V to allow an
LNB downconverter to set the receive signal polarization to
either horizontal or vertical. If you do not need the
TDR7 to
supply the LNB power, you must install a DC block capacitor
onto the RF input cable. If you need assistance, contact
Tiernan
Communications Product Support .
NOTE...