Comtech EF Data SDM-2020 - Manual (Page 40)

SDM-2020 Satellite Modulator Revision 7
External Connections MN/SDM2020M.IOM
4-4
Type TN System Only (EN 60950, Paragraph 1.2.12.1) - Power Distribution System:
Power distribution system having one point directed toward the earth, the exposed
conductive parts of the installation being connected to that point by protective earth
conductors. This equipment shall not be used with single-phase three-wire (PE, TT, or IT)
type power distribution system.
The A/C power is supplied to the modulator by a standard, detachable, non-locking,
3-prong power cord. The cord connects to a fused IEC 320-type power receptacle.
Internal to the unit, color-coded wiring is used in the A/C mains as follows:
UK Europe USA
(BS 1363) (CEE 7/7) (NEMA 5-15P)
Live Brown Brown Black
Neutral Blue Blue White
Ground Green/Yellow Green/Yellow Green
Note: Since the equipment is not fitted with an ON/OFF switch, the A/C socket-outlet shall be
installed near the equipment and shall be easily accessible (EN 60950 1.7.2).
IMPORTANT
Before replacing the fuses in the A/C input connector, disconnect
the equipment from the power supply. Failure to do so may expose
hazardous voltages. Unplug the equipment from the local power
supply socket.
4.1.5 F
USE
D
ATA
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)
Refer to input power requirements as specified in Chapter 2.
Replacing a fuse
1 Remove the fuseholder on the back of the IEC 320 style A/C input connector (Figure 4-1).
2 Replace fuse with same or equivalent rated part and/or model number.