Installing Cable Connectors On Twinax Cable - IBM 3 User Manual

Installing Cable Connectors on Twinax Cable

If you purchase bulk twinax cables, assemble them as follows. See the illustrations
for dimensions and help in doing these procedures. If you use connectors that are
provided by a company other than IBM, use the instructions that are provided by
the manufacturer.
348
4247 Model 003 User's Guide
Conductor AWG wire size
Stranding
Material
Coating
Resistance
Core Insulation Material
Outside diameter 6.1 mm (0.24 in.) nominal
Shield Material
Type
Coverage
Resistance
Jacket Material
Color
Average
single-wall
thickness
Outside diameter 7.00 mm (0.275 in.) nominal
Rating Dielectric
strength
Capacitance
Impedance, characteristic
Attenuation @ 100 MHz
Velocity of propagation
Operating environment
20
7 x 28
Copper
Tin (1 conductor only)
11 ohms maximum per 305 m (1000 ft)
Teflon
Tinned copper
Braid, 34 AWG, 8 ends/16 carriers,
10.1 ± 10% picks/25.4 mm (1 in.)
95% minimum
3 ohms maximum per 305 m (1000 ft)
Teflon
Translucent (white, natural, or light gray)
0.63 mm (0.025 in.)
4500 V dc for 3 seconds at 28°C (82°F)
53.1 pF/m (16.2 pF/ft) maximum
111 ± 5% ohms at 0.5 MHz
107 ± 5% ohms at 1 MHz
105 ± 5% ohms at 2 MHz and above
4.5 dB/30.5 m (100 ft) maximum at 25 °C (77°F)
4.7 dB/30.5 m (100 ft) maximum at 80°C (176°F)
66% - 75%
-40°C to 105°C (-40°F to 221°F)
10% to 90% relative humidity