# IEEE 1394 Devices

## IEEE 1394 Device Information Module

The IEEE 1394 interface, also known as FireWire, is a serial bus interface standard for high-speed communications and isochronous real-time data transfer.

The list in this module displays all devices attached to IEEE 1394 bus and allows you to reset the bus by selecting the Generate 1394 Bus Reset button.

The meaning of the columns in this list:

- Name: port or node name, the number can change with each bus reset

- GUID: the 64 bit GUID of the node

- Local: checked if the node is an IEEE 1394 port of your computer

- IRM: checked if the node is isochronous resource manager capable

- CRM: checked if the node is cycle master capable

- ISO: checked if the node supports isochronous transfers

- BM: checked if the node is bus manager capable

- PM: checked if the node is power management capable

- Acc: the cycle clock accuracy of the node, valid from 0 to 100

- Speed: the speed of the node

- Vendor: the vendor of the device