Specifications
18
POWERCASSETTE FRONT-END
OPERATING MANUAL
14.3.5 For details on I
2
C data (J3 pins 9 and 13) see Appendix.
14.3.6 The Module Present outputs (J3 pins 20 and 21) are grounded
(to -Sense) when the module is plugged in and open when the
module is out.
14.4 Three-Unit Rack. The three-unit 19-inch rack is shown in Figure 10 to-
gether with connectors and pin designations. The AC input connectors are
IEC60320. All connections are at the rear of the rack for the standard model.
For option E the AC IEC60320 connectors are on the front of each module.
The DC output is at two copper bus bars with no. ΒΌ-20 studs and nuts.
Monitoring and control signals are brought out at a 25-pin subminiature D
connector, J4. The maximum rated output figures for three modules are
shown in the table. Note that the maximum output of a three-module, 12V unit
is 150A, or 1800 watts, less than the total capability for the three 650 watt
units.
14.4.1 All electrical connections are made to the rear of the standard
rack. For Option E, the AC inputs are made to the IEC60320
connectors on the front of each Option E module. There is one AC
connector for each module. Connector J1 goes to module A,
connector J2 to module B and connector J3 to module C.
14.4.2 Module A is on the left, module B in the center and module C
on the right, as seen from the front of the rack.
14.4.3 The outputs of all PowerCassette modules are connected in
parallel in the rack.
14.4.4 The rack depth is 11.56 inches (294mm).
14.4.5 Input voltage range is 85-264VAC for maximum power in either
redundant or non-redundant operation.
14.4.6 The Module Present outputs (J4 pins 20, 21 and 22) are grounded
(to -Sense) when the module is plugged in and open the
module is out.
14.4.7 For details on I
2
C data (J4 pins 9 and 13) see the Appendix.