from my guide, i shortened some parts obviously
USING WORD CLOCK WITH PROTOOLS LE
-using high quality, 75 ohm BNC cables, connect the 003 word clock in and out connectors to the appropriate ports on your word clock capable devices.
PT LE as a word clock master
1. make sure all connections are correct
2. configure all external devices to slave to the word clock coming from the 003 interface. (be sure to match the sample rate setting of the pro tools session, and verify the termination requirements and other internal settings for the device; see the manufacturers documentation for the requirements for your other equipment)
3. launch pro tools
4. choose Hardware > Setup
5. Click the Clock source pop-up menu and select internal
6. click OK
PT LE as a word clock slave
1. make sure all connections are correct
2. make sure the external word clock source is powered on, and configured to output 1x word clock (Be sure to verify any required termination: see the manufacturers documentation for the requirements for your other equipment)
3. launch pro tools
4. choose Hardware > Setup
5. Click the Clock source pop-up menu and select word clock
6. click the sample rate pop up menu and match the sample rate of the external word clock source.
7. click ok