Alpha Technologies XM2, XM2-HV, XM2-HP - Manual (Page 40)

6. Replace the SPI cover and reinstall the screws.
7. Reconnect the SPI to the power supply.
8. Using the switch on the top of the SPI, turn the
unit ON to select the standby power supply as
the power source to the cable plant.
9. The switch should only be in the ALT position
when the standby power supply is connected
to the cable. When in ALT, the standby power
supply is bypassed for service or removal and
provides power for status monitoring options.
10. Verify the SPI is properly grounded. Typically,
grounding is accomplished by one of two
methods:
a. If the SPI has been installed with a
mounting bracket, ground connection
is made with paint-cutting star washers
(Fig. 2-18) used in conjunction with SPI
grounding wire.
b.
If the SPI doesn’t use the mounting bracket,
the ground connection is made via a #8
AWG wire connected to the cover of the SPI
(Fig. 2-19) and terminated at the ground bar
of the cabinet (Fig. 2-20).
2.9 Service Power Inserter (SPI), continued
Fig. 2-19, SPI Grounding Lug Fig. 2-20, Enclosure Ground Bar
Fig. 2-18, Cover Replaced, SPI
Switched On
Enclosure Wall
Paint-cutting
Star Washers
ALT ON
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40 017-805-B0-010 Rev. K2