Tadiran Telecom Coral IPx 800 Series, Инструкция по установке и справочник по аппаратной части, Страница: 59 / 400

Hardware Installation Procedure
2-19
Eq
uip
m
ent Insta
lla
tio
n
2
Connecting the Ground Wire to the Master Ground
A master ground must be included within the system. The system ground connection
is fabricated as follows:
1. Verify that a master ground unit for ground connections is used. See
Figure 2-8
.
The recommended master ground unit must have the following specifications:
Dimensions:.......................Minimum of 5.5
”
x ¼
”
x 1
”
(140 mm x 6 mm x 25 mm)
Material:.............................Brass or Copper
Mounting holes:................¼
”
(6 mm) diameter, ½
”
(12 mm) distance from edges
Ground screws:.................10-32 UNF
Washers...............................One serrated washer and one flat washer
Distance between screws:.....¾” (19 mm)
Figure 2-8 Master
Ground Unit
2. Verify that the ground wire is 10AWG stranded conductor, is the proper length,
and includes two ring terminals fitted onto either end of the wire that are suitable
for connecting to the master ground and to the cage.
3. Route the ground wire between the cage and the master ground.
4. Connect the ground wire to the cage as described on
page 2-18, Connecting the
Ground Wire to the Cage
.
5. Connect the cage ground wire to the master ground unit as follows:
a. Unfasten one of the 10-32 UNF screws connected to the master ground unit and
retain the screw and serrated washer. See
Figure 2-8
.
Ring Terminal Serrated Washer
Disk Washer
1
"
(2
5
m
m
)
¾
"
(1
9
m
m
)
¼"
(6mm)
¾
"
(1
9
m
m
)
½
"
(1
3
m
m
)
½
"
(1
3
m
m
)
1/4"
(25 mm)
10
-3
2
UN
F