Alpha Technologies XM2, XM2-HV, XM2-HP - Manual (Page 18)

N+1 Ports
1.2.1 Transformer Module Overview
AC Output Fuse (legacy models only): Legacy XM2 power supplies use either a
20A slow blow or 30A slow blow fuse. To provide increased durability, an integrated
fuse guard protects the fuse.
Output N L (legacy models only)
: Use the output test point (output N L) to check
the AC output. Use a true RMS AC voltmeter equipped with the proper test probes;
other meters may give false or inaccurate readings.
N+1 (Optional): Use
the N+1 ports in redundant system configurations where
multiple power supplies are housed in a single enclosure. If a power supply fails, a
redundant power supply automatically switches into service (8ms delay). This feature
is part of the PIM option.
LRI (Local/Remote Indicator): The LRI lamp option is used in conjunction with
the automatic performance feature and plugs directly into the LRI connector. The
LRI circuit is rated at 12Vdc, 250mA. This option duplicates the function of the red
ALARM LED by illuminating an externally mounted red lamp for standby operation.
Output 1A (White = Neutral, Black = Line): The AC output connector is clearly
marked and color-coded for easy identification. The service power inserter (SPI)
connects directly into the Output 1A connector.
Output 1B (White = Neutral, Black = Line): This output is wired in parallel to Output
1A (Output 1A +1B = Output 1) and is often used for auxiliary loads.
Output 2 (Optional) [White = Neutral, Black = Line]: The AC output connector is
clearly marked and color-coded for easy identification. The SPI, which couples power
to the load, connects directly into the Output 2 connector. This feature is part of the
PIM option.
The Smart Display only displays Output 1, which is the sum of Output 1A and Output 1B.
NOTE:
1.2 Intelligent CableUPS Layout
Fig. 1-5, Transformer Module Connections
LRI
Output 1B
Output 2
Output 1A
18 017-805-B0-010 Rev. K2