Maximum suggested IEEE-1394 cable lengths
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.
* We do not manufacture any cameras that support this interface.