S9407-AB-HBK-010 Datasheet, PDF (117/276 Pages) Glenair, Inc. – HANDBOOK OF SHIPBOARD ELECTROMAGNETIC SHIELDING PRACTICES

S9407-AB-HBK-010, Rev. 2
Cable
Category
R1
R2
R3
R4
R5
R6
R7
R8
R9
Table 6-1. Cable Categories and Designators
Category Description
Shipboard cables that carry 60-Hz power above
0.5 amp. Cables in this category are listed in
figure 6-1.
Shipboard cables that carry 400-Hz power
above 0.5 amp. See figure 6-1.
All transmitting systems using the cables listed
in figure 6-2.
Transmitting systems and triggering circuits
operating above 100 kHz and using RG-type
coaxial cables. See figure 6-2.
Cables used to carry audio signals whose
maximum values exceed 0.1 volt. Typical
components are announcing circuits, ac
recorders, loadspeakers, call bells, and alarm
bells. See figure 6-2.
Cables that carry 60-Hz synchro signals, 60-Hz
indicator signals, 60-Hz control signals at 0.5
amp or less, or 60-Hz power at 0.5 amp or less.
See figure 6-2.
NOTE: Any 60-Hz control signal over 0.5 amp
must be classified in the R1 category. See
figure 6-1.
Cables that carry 400-Hz synchro signals, 400-
Hz indicator signals, 400-Hz control signals at
0.5 amp or less, or 400-Hz power at 0.5 amp or
less. See figure 6-2.
NOTE: Any 400-Hz control signal over 0.5 amp
must be classified in the R2 category. See
figure 6-1.
Cables used to carry digital data. See figure 6-
2.
Cables that carry dc. See figure 6-3.
Group
Numbers
0 thru
7, and 9
Cable
Designators
R1-0 thru
R1-7, R1-9
0 thru
7, and 9
1, 2,
3
(none)
R2-0 thru
R2-7, R1-9
R3-1, R3-2,
R3-3
R4
(none)
R5
1, 2
R6-1, R6-2
1, 2
R7-1, R7-2
(none)
1, 2,
3
R8
R9-1, R9-2,
R9-3
6-4