A wide supply voltage range of 8 to 15 V is supported here. At 13.8V, the current consumption is about 200mA. In the downconverters shipped in 2019/2020 with OCXO, the current consumption during the heat-up phase was about 500mA. This was also a reason to completely switch to the GPS-based solution.
The switching of the polarization plane (V)ertical / (H)orizontal is done by the power supply respectively 14V or 18V. The V-plane is used for the NB transponder, the WB transponder is on the H-plane. Users in South America or Southeast Asia with large skew angles can exchange this configuration, as well as if the LNB was installed rotated by 90°.
14A is for the NB LNB (position shown in the picture: 14V)\\. 14B is for the WB LNB (position shown in the picture: 18V)
both open … 24 MHz (default)
10A bridged … 25 MHz
10B bridged … 26 MHz (for LNB with 27 MHz crystal)
both bridged … for future extensions
The following reference signals are available:
10 MHz REF OUT: solder eyes for SMA connector, 10MHz 50Ohm, 0dBm, sinus\\. 40 MHz REF OUT: 2-pin connector, 40 MHz, 3Vpp CMOS level, square wave, left signal, right ground.
A … LNB power supply: dc5x
B … down mixer: LOCK
C … blinking when device is active
D … central PLL: SYNC
5 pin jumper (pitch 2.54mm). Pins from left to right:
1 … 3.3 Volt\\. 2 … ground\ 3 … serial GPS connector 4 … serial GPS connector / debug output connector 5 … reference signal input
GPS operation The GPS module is plugged in and the GPS antenna is connected. The included GPS module V2 will be detected automatically. (This will not work if you are eliminating a 2019/2020 delivered OCXO variant). Ext. reference:**
A 10 MHz signal is connected to pin 5 (min. 1Vpp, max. 3.3Vpp, 100 Ohm impedance). Additionally pin 3 and pin 4 have to be connected with a jumper.