REV 0, June 2005 Page 157
Operation Manual SUPREMA
5. Installation
• The internal rack power supply can be omitted if, because of a high power requirement
or a redundant design, the power is supplied by an external power supply via the INT
connection terminals.
• Maximum supply current of 20 A.
BAT Connection (Continuous Battery Power Supply)
• Continuous battery power supply for all units in a rack (20 ... 28 VDC).
• If the internal and/or the external power supply unit fails, the system is supplied from
here
• Maximum supply current, 20 A.
5.11.3 Connection of the Internal Rack Power Supply Unit (MSP Module)
The system can be supplied by the power supply built into the rack. The power supply has a
wide-range input (85 ... 265 VAC, 47 ... 63 Hz or 120 ...330 VDC).
Table 5-37: MSP Module, Terminal Assignment
Warning: Connection of the line power must be made with the power switched
off and all relevant safety regulations should be complied with.
Power Supply Unit - Terminal Designation Function
+24 V +S Output: +24 VDC Blade Connection
+24 V Output: +24 VDC
GND Output: GND
GND -S Output: GND Blade Connection
PE Ground Wire Connection (EARTH)
L Line (HOT) BLACK WIRE
N Neutral WHITE WIRE
As shown in Figure 5-46, the +24 V output terminal of the MSP module must be connected to
the +ve terminal of the INT connection, and the GND output terminal of the MSP module must
be connected to the -ve terminal of the INT connection of the MIB module. The line power is
supplied via the terminals “L” and “N” of the MSP module.
Figure 5-46: Connection diagram of the MSP module
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