Pub. 42004-561A
400-005 and 400-006 RigCom Stations
Page 5 of 16
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-561A.docx
04/22
Wiring
System Wiring
The maximum line length for the complete system, while still maintaining maximum output signal, is
15,000 feet for a system with less than ten stations; based on No. 18 AWG wire, equidistant station
spacing, and one station in talk mode at a time. For each station in talk mode, the signal level reduces by
half (see Figure 4 for systems with more than ten stations to determine the maximum line distance).
Figure 4. Number of Stations vs. Line Length
Station Wiring
1.
Attach conduit or cable glands to the ¾-inch NPT holes on the bottom of the enclosure.
2.
Feed the low-voltage wiring through the conduit or cable gland and into the left-side hole, as viewed
from the front of the station.
3.
Feed the power wiring through the conduit or cable gland and into the right-side hole, as viewed from
the front of the station.
4.
For ac power supply
:
1.
Install a #6 ring lug to the ground conductor
2.
Connect the ring lug on the ground wire to the ground terminal, located at the lower right corner
of the RigCom station PCBA (see Figure 5).
0
2
4
6
8
10
12
14
16
0
5
10
15
20
25
30
Li
ne L
e
ngth
1
8
A
W
G
w
ire
(
1
0
0
0
f
e
e
t)
Number of Stations
Number of Station per Line Length
