Installation
Table 2.2: Supply Cable Wiring Colours
UK
(BS 1363)
EUROPE
(CEE 7/7)
USA
(NEMA 5-15P)
Earth: Green-and-yellow Green-and-yellow Green
Neutral: Blue Blue White
Live: Brown Brown Black
If the colours do not correspond with the coloured markings identifying the terminals in a locally
supplied plug, proceed as in Table 2.3 (included for reference).
Table 2.3: Non Standard Supply Cord Wire Colours
Wire Colour (UK) Action
Green-and-yellow
Must be connected to the terminal in the plug which is marked
with the letter E or the safety earth symbol or coloured
green or green-and-yellow.
Blue
Must be connected to the terminal in the plug which is marked
with the letter N or coloured black.
Brown
Must be connected to the terminal in the plug which is marked
with the letter L or coloured red.
2.5.2.3 Protective Earth/Technical Earth
Connect the SBM75e Modulator technical earth to a suitable point.
WARNINGS
1. THIS UNIT MUST BE CORRECTLY EARTHED THROUGH THE MOULDED PLUG SUPPLIED. IF THE
LOCAL MAINS SUPPLY DOES NOT HAVE AN EARTH CONDUCTOR DO NOT CONNECT THE UNIT.
CONTACT CUSTOMER SUPPORT FOR ADVICE.
2. BEFORE CONNECTING THE UNIT TO THE SUPPLY, CHECK THE SUPPLY REQUIREMENTS IN ANNEX
B, TECHNICAL SPECIFICATION.
The unit has a Technical earth terminal (marked with ) located adjacent to the rear-panel
mains inputs. Its use is recommended. This is NOT a Protective earth for electric shock protection.
The terminal is provided to:
Ensure all equipment chassis fixed within a rack are at the same Technical earth potential.
To do this, connect a wire between the Technical earth terminal and a suitable point on the
rack.
Eliminate the migration of stray charges when connecting between equipment.
Figure 2.4: Location of Technical Earth
2-8 SBD75e Series Modulator Installation and Operation Manual
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General