Specifications

Installation
2. Do not install equipment so that the air intake of one aligns with the outlet on another.
Provide baffles and adequate spacing.
3. The fans contained within this unit are not fitted with a dust/insect filter. Pay particular
attention to the environment in which it is to be used.
The unit is designed for stationary or fixed use only. Ensure it is firmly and safely located and has
an adequate through-flow of air. Allow at least 50 mm free air-space at each side of the
equipment. Units in racks can be stacked without ventilation panels between. Racks containing
stacked equipment may need to be forced-air cooled to reduce the operating ambient
temperature. For stacking constraints contact Advantech Customer Support.
Figure 2.2: Air Path Through the Enclosure
Warm air is
exhausted via
side vents
2.5 Power Requirements and Earthing
Caution
This product should be operated only from the type of power source indicated on the marking
label. If you are not sure of the type of power supply to your business, consult a qualified
electrical engineer or your local power company.
The SBM75e Modulator is available in an AC powered version which may be operated with any
regular worldwide office or domestic supply.
2.5.1 Power Cables
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.
Cool air is
brought into the
unit via fans
2-6 SBD75e Series Modulator Installation and Operation Manual