EEE1394 Fire Wire
High Performance Serial Bus Cable
IEEE 1394 is a Serial BUS standard designed for use in real-time applications
such as sound, video, and animation. This technology was designed by INMOS
for their TRANSPUTER and then further developed by APPLE, at which point
it was given the name "FIRE WIRE". The IEEE 1394 signal has an intermediate
characteristic between serial and parallel transmission. It transmits
serial data and clock signal in parallel, and countermeasures cable skew
(propagation velocity difference between two pairs) by not changing the
clock signal when the data signal changes. This interface requires a new
type of cable and connector. It uses high speed real-time transmission
with a cable that can be connected and disconnected without turning off
any device. It makes it possible to connect freely between multiple terminals
without having to consider termination. MOGAMI Part No. W3208-08 is specifically
designed for the IEEE 1394 standard, and offers the following features.
- Low attenuation
- High propagation velocity
- Low cable skew
Therefore, it carries data transmission with enough margin to be used
for longer runs than the recommended maximum length of 4.5m (14.75Ft) per
cable in the IEEE 1394 standard. Incidentally, the maximum applicable length
of all the connected cables in one Fire Wire system, excluding a bus bridge
on any one bus, is limited to 4.5m × 15 pcs for a total of 67.5m (14.75Ft
× 15 pcs = 221.25Ft).
- 6p connector cable assembly is available to order in 10cm (0.394")
interval. Specify required length at XX part of the cable assembly part
number of W5086-XX.
Example: In case of 1.2m, it is W5086-12, while in case of 4.5m, it
is W5086-45.
- Bulk cable is available in 77m (250 Ft) and 153m (500 Ft) roll.
6P CONNECTOR PIN ASSIGNMENT
| Pin No. |
Signal |
Comment |
| 1 |
Y P |
Cable Power |
| 2 |
V G |
Cable Ground |
| 3 |
TPB |
Strobe on receive, Data on transmit
(differential pair) |
| 4 |
TPB |
| 5 |
TPA |
Data on receive , Strobe on transmit
(differential pair) |
| 6 |
TPA |
SPECIFICATIONS
| Configuration |
 |
| Part No. |
W3208 |
| Core Configuration |
2×Balanced Signal Pair
2×Power Conductor |
| Balanced Signal Pair |
Conductor Size (mm²) |
0.0886mm² (#28AWG) |
| Insulation |
Ov. Dia.(mm) |
1.0Ø (0.0394"Ø) |
| Material |
CPP |
| Colors |
Red/Green, Blue/Orange |
| Shield |
1st Shield |
Aluminum Tape Shield |
| 2nd Shield |
Copper Braid Shield |
| Power Conductor |
Conductor Size (mm²) |
0.341mm² (#22AWG) |
| Insulation |
Ov. Dia.(mm) |
1.2Ø (0.0472"Ø) |
| Material |
PVC |
| Colors |
Black/White |
Insulation Taping between two
individual core braided
shields and overall aluminum tape shielding |
Twofold Polyester Tape |
| Ov. Shield |
1st Shield |
Aluminum Tape Shield |
| 2nd Shield |
Copper Braid Shield |
| Ov. Jacket |
Ov. Dia.(mm) |
6.1Ø (0.240"Ø) |
| Material |
Flexible PVC |
| Color |
Dark Gray |
| Roll Sizes |
77/153m (250Ft/500Ft) |
| Weight per 77m (250Ft) Roll |
4.5kg |
ELECTRICAL & MECHANICAL CHARACTERISTICS
| Signal Pair |
Impedance |
Differential |
110W±6W |
| Common Mode |
33W±6W |
| Attenuation (at 4.5m) |
100MHz: 1.3dB |
| 200MHz: 1.9dB |
| 400MHz: 3.1dB |
| Propagation Velocity |
4.35nS/m |
| Relative Propagation Skew (at
4.5m) |
76ps |
| Power Pair |
Characteristic Impedance (Differential) |
53W |
| DC Resistance at 20°C (at
4.5m) |
0.235W |
| Crosstalk (at 1MHz~500MHz) |
-52dB |
| Tensile Strength |
882 N |
| Emigration |
Non-emigrant to ABS resin |
| Applicable Temperature |
-10°C~ +60°C(-14°F~ +140°F) |
| Standard |
IEEE 1394, UL 2560 AWM 60°C 30V VW-1 |
|
