Holland Electronics NE 1100 - Manual (Page 8)

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NE1100A2 CATV Optical Receiver Operation Manual
4.1 Definitions - Refer to figures 2 & 3 to locate the following features of the receiver.
OPT RX Monitor F-type connector .Used to monitor the optical receiver’s RF output signal
strength. The signal strength equals the port A output level minus 20dB.
Power Detector A plug in module used to detect the pilot tone signal. The standard pilot tone
signal is
10.7 MHz +/- 50 kHZ. Optional modules are available for use with different pilot tone
frequencies.
EQ-Plug-in Equalizer The effective frequency range of tilt adjustment is 54MHz~750/860MHz.
TILT Adjust- (VR3) The effective frequency range of tilt adjustment is 54MHz~750/860MHz. It
can be continuously adjusted for positive tilt with a 0~3dB range.
Pilot adjust – (VR6) The default values are preset for the optical receiver to work properly in the
AGC mode. Do not alter the factory setting.
MGC Adjust - (VR4) The level of the RF output signal can be properly maintained by a manual
gain control circuit. (MGC). The controlled gain range is 10dB. VR4 adjusts the reference level
of the MGC.
AGC Adjust – (VR5) The level of the RF output signal can be properly controlled via the
automatic gain control circuit (AGC). The controlled gain’s range is 10dB. VR5 adjusts the
reference level of the AGC.
RPT Socket An 14-pin connector used to install the (optional) Return Path Transmitter module.
DC Power Socket A flat 6-pin header-type connector used to connect the DC output of the
switching power supply to the motherboard of the optical receiver.
(+5V/+12V/GND/GND/NC/+24V).
Return Path Transmitter (optional)
Diplex filter (optional) A filter which separates the reverse RF signal and forward RF signal
4.2 LED Status Indicators