User's Manual

Power Consumption, Connections and Power Supplies
MA 850 Installation and Configuration Guide 11
2.3 Power Consumption, Connections and Power
Supplies
2.3.1 Power Safety Instructions
SAFETY WARNINGS
When installing or selecting the power supplies:
1. Be sure to disconnect all power sources before servicing.
2. Calculate the required power according to the requirements of the specific installation and
then determine the configuration of the power supplies. The required DC cables will then be
determined by the selected PS configuration.
3. Use only UL approved power supplies
4. AC and DC power supply cables – use only the power cords supplied with the units
2.3.2 MA 850 Power Consumption
Table 2-1. MobileAccess™ Power Requirements
Unit Type Voltage Input Typical Power Consumption Current Consumption
MA 850 20 to 48VDC 20W 1.0 A (max)
2.3.3 Types of Power Supplies
NOTE: Use only UL approved power supplies with SELV outputs.
Table 2-2: MobileAccess™ Power Supplies
Power Supply
LPS-48V-66W Local AC/DC Converter 66W
2.3.4 Power Connections
The power connections vary according to the MA 850 installation topology. The following power
supplies are recommended for local power configuration, where p ower can also be supplied
using remote power supply configurations
.
• Use a dedicated power supply (i.e. LPS-48-66W – refer to the Power Supplies Manual)
for the following installations:
• MA 850 standalone
• Combined with ModuLite MRC or 2000 Cabinet/Lite
• LPS-48-100W (recommended)
• Combined with the MA 1000 RHU – feeds both modules