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Issue:
Maximum suggested IEEE-1394 cable lengths.
Solution:
The IEEE-1394 standard specifies the following maximum cable lengths:
| Bus Type |
Cable Type |
Max Length |
Speed Limitations |
| 1394a |
4-pin or 6-pin shielded TP copper |
4.5m |
400Mbps |
| 1394b |
9-pin shielded TP copper |
4.5m |
800Mbps |
| 1394b |
Unshielded TP |
4.5m |
800Mbps* |
| 1394b |
Unshielded TP |
100m |
100Mbps* |
| 1394b |
Glass optical fiber (GOF) |
100m |
(Check with the manufacturer for speed/distance limitations)* |
| 1394b |
Plastic optical fiber |
50m |
(Check with the manufacturer for speed/distance limitations)* |
Some manufacturers sell cables that exceed the above specifications. In some cases, longer (e.g. 20m) cables can only be achieved by reducing the maximum bus speed to S100. Refer to the Related Article below for information on extending the distance between a Point Grey camera and the host system.
* PGR does not manufacture any cameras that support this interface
Related
Articles:
1.) Image capture freezes after a period of successful image capture.
2.) Image data is corrupt and images being displayed are broken or torn.
3.) Using PGR IEEE-1394a cameras with 1394b Open Host Controller interface cards.
4.) Extending the distance between a PGR camera and the controlling host system.
Article
ID: |
193 |
| Published: |
4/6/2005 3:31:56 PM |
Last
Modified: |
9/20/2006 9:17:51 AM |
| Keywords: |
cable, length, UTP, copper, twisted pair, 1394b, optical, shielded twister pair, fiber, GOF, IEEE-1394 |
Issue Type: |
Installation |
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