016-564-B0-001, Rev. A1 (05/2022)
15
2.0 Installing an Alpha® APX3-G Unit, continued
Fig. 2-5, Seizure Screw Location
Fig. 2-6, Stinger Pin
Fig. 2-7, Connecting to Output
Coaxial Connector
•
Failure to replace the sealing plugs will allow moisture to enter the enclosure and damage
equipment.
•
Install this equipment strictly according to installation instructions.
•
The faceplate must face downward in order to meet the rainproof requirements for pole-
mount installation.
CAUTION!
7.
Align the APX3-G unit mounting holes over the lag bolts with flat washers and slide the chassis downward into the
slots. Securely tighten the top lag bolts by inserting the ratchet and socket through the access holes in the back of the
chassis. Replace the four sealing plugs, making sure they properly fit.
8.
Continue to
Section 2.3.1, AC Output Connection
.
31.7cm (1.25”)
2.4 Connecting an Alpha
®
APX3-G Unit
2.4.1 AC Output Connection
Required Tools:
•
Appropriate open-end wrenches and screwdrivers
1.
Prepare the incoming coaxial cable used for the distribution of power
(including external fittings not supplied by Alpha
®
).
2.
Loosen the seizure screw output fitting to accommodate the center pin
("stinger") of the cable connector.
3.
Screw the cable connector into the output port (large hex nut fitting)
located on the baseplate of the Alpha APX3-G unit. Make sure that
the center pin extends far enough into the fitting so that the seizure
assembly can be secured.
4.
Tighten the brass seizure screw on the cable "stinger" or center
conductor to 2.82Nm (25in-lb).
5.
Connect line cords for utility power. See
Section 2
.
4.2, Utility Power
Connection
for detail.
6.
Replace cover and securely tighten cover securing and retaining
screws.
7.
Choose the right tie-in for power from the terminal block of the
transformer. For the APX3-608G and APX3-615G units, the output
default is 63V. Ensure power is
OFF
when changing the output tie-in.
The center conductor may be trimmed to allow for a flush
fit. The length of the center conductor must be 31.7cm
(1.25”) from the end to the center of the O-Ring.
NOTICE
:
Seizure Screw
