Appendix
Exploded Detail of Coax, Twinax, & Triax
Cable
Trompeter Cable Specifications
Trompeter cables are manufactured to the listed specifications
and offer optimum flexibility, shielding, and performance. Cables
with stranded center conductors have greater flexibility and are
recommended for short runs at low frequency where constant
cable movement might fatigue a single copper-weld center
conductor. Trompeter’s M17/176-00002 and TWAC-78-1F2 are
200°C, Hi-Temp Cables for MIL-STD-1553B data bus applications.
Dielectric and fillers made of PTFE (Teflon™) and outer jackets
are PFA (Perfluoroalkoxy). All dimensions are in inches. All
values without tolerances are nominal unless otherwise stated.
TWCH-78-2 has jacket constructed of flame retardant halogen free
polyolefin with temperature range of -30°C to +80°C.
CENTER
CONDUCTOR
JACKET
DIELECTRIC
BRAID
Coax
FILLER
OUTER SHIELD
JACKE
INNER
CONDUCTORS
TWCP = Twinax Plenum Cable
TWCH = Twinax Blue Flame Retardant Halogen Free Polyolefin
DIELECTRIC
Cable
Twinax
TRCH = Triax Yellow Flame Retardant Halogen Free Polyolefin
Cable
OUTER BRAID
JACKET
CENTER
CONDUCTOR
Coax Cable Specs
DIELECTRIC
Cable Designation
Impedance (Ohms)
Nominal outer dia.
PVC outer
TCC-50-2
50±2
TCC-75-2
75±3
RG62 A/U
93±5
DIELECTRIC
INNER BRAID
Triax
0.195
0.242
0.242
Green
Violet
Black
Braid outer dia.
0.150 Max
36/Tinned Cu
0.116
0.191 Max
34/Bare Cu
0.146
0.191 Max
34/Bare Cu
0.146
Braid AWG#/Mat'l
Dielectric outer dia.
Dielectric mat'l
Solid PE
0.0355
Foamed PE
0.031
PE
Conductor outer dia.
Conductor strands/Mat'l
0.0253
Solid/CCS
19/.0071 Tinned
Cu
7/.010 Tinned
Cu
Operating temperature
range
-40°C to 90°C
-40°C to 85°C
-40°C to 80°C
Minimum bend radius
Max. Opr. VAC (RMS)
Capacitance pf/ft (Max)
1.00
1.00
800 V
17.3
17.6
1.4 KV
30.8
750 V
14.5
Cond. Loop Res.
(Ohms/M ft.)
Atten. dB/100 ft:
1 MHz
0.380
1.400
3.40
0.335
1.070
2.40
0.250
0.900
1.90
2.80
3.70
5.20
8.50
10 MHz
50 MHz
100 MHz
200 MHz
400 MHz
1 GHz
4.90
3.40
7.30
4.85
9.00
28.80
93%
12.00
30.00
93%
3 GHz
Shielded Coverage
94.3% Min
For high temperature cables, see chart on the next page.
66
EMERSON-NETWORKPOWER [ EMERSON NETWORK POWER ]
