Fig. 2-5, Pole And Ground Mount Enclosure Installation (Spi-20 & Spi-25); Fig. 2-4, Spi Installation - EnerSys alpha SPI-20 Installationsanleitung

2.0 Installation
NOTICE:
When installing a SPI, use a power inserter to
ensure only AC is passed from the plant to the
SPI.
4. Verify the bypass switch is in the ALT. position. Connect
SPI to power supply's Output 1 connector. (For wiring
instructions, refer to the corresponding power supply
technical manual which can be downloaded at
www.alpha.com.)
5. Connect the second isolated load / auxiliary load (i.e., fan)
to the Output 2 connector.
6. Connect the coupler cable to the coaxial cable termination
port on the back of the SPI and secure in place via the
seizure screw. Torque to 25 in-lb
7. Turn on AC breaker (located on enclosure) and verify
correct (per unit's nameplate voltage) utility voltage at
outlet; if correct, plug in line cord to the utility outlet.
8. Turn the power supply battery breaker ON.
9. Toggle bypass switch to ON.
8
Enclosure
Power
Inserter
RF
Fig. 2-5, Pole and Ground Mount Enclosure Installation (SPI-20 & SPI-25)
SPI
AC
Power Supply
DOCSIS Transponder

Fig. 2-4, SPI Installation

TAP
AC
745-997-C0-001 Rev. B (02/2021)