Comtech EF Data SDM-100A - Manual (Page 34)

Installation SDM-100A Satellite Modem
2–8 Rev. 0
2.4.5 RX IF Input (CP2)
This is the receive IF connector. The input impedance is 75 Ω (50 Ω optional).
For normal operation, the desired carrier signal level should be between -30 and
-55 dBm. Signals between 50 and 180 MHz are selected and demodulated to produce
clock and data at the DATA I/O connector.
2.4.6 AC Power
The AC power is supplied to the modem by a standard detachable, non-locking, 3-prong
power cord.
Normal input voltage is 90 to 264 VAC, 47 to 63 Hz. The modem will automatically
switch between ranges.
Maximum power consumption is less than 40W.
2.4.7 DC Power
DC power is available as an option. The DC power is supplied to the modem by a
3-position terminal block.
Normal input voltage is 48 VDC,
± 10%.
Maximum power consumption is less than 40W.
2.4.8 GND
A #10-32 stud is available on the rear for the purpose of connecting a common chassis
ground between all of the equipment.
Note: The safety ground is provided through the AC power connector.
2.4.9 AGC Test Point
The Automatic Gain Control (AGC) test point is a BNC connector on the rear panel of
the modem chassis. This feature allows the user to monitor the AGC.