
SDM-2020 Satellite Demodulator Revision 4
Installation MN/SDM2020D.IOM
3–8
3.2.6 Fuse Data
Fuse Type Littlefuse 215002 5 x 20 mm
Fuse T2A H250V
Time Delay, 2A, High Breaking Capacity
Double Pole
(Approved to IEC 127, Sheet V and Underwriters Laboratories)
To replace a fuse, proceed as follows:
1. Remove the fuseholder on the back of the IEC 320 style A/C input connector .
2. Replace fuse with same or equivalent rated part and/or model number.
Refer to Input Power requirements as specified in Chapter 1, 1-6.
3.2.7 DC Power (Optional)
DC power is an available option. Contact Comtech EF Data Customer Support for further
assistance.
3.2.8 Ground (GND) or Earth
A #10-32 stud is available on the rear panel for the purpose of connecting a common chassis
ground among all of the equipment.
Note: A safety ground is provided through the AC power connector.
3.3 Proper Operations for Emissions (CE)
Note: To ensure compliance with the EMC Directive 89/336/EEC, properly shielded
cables for Data I/O shall be used. These cables shall be doubled-shielded from end-to-
end, ensuring a continuous ground shield.
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