1). Attach the anti-static wrist strap. Refer to the instructions on the anti-static wrist strap package
2). Place the I/O or Fabric module on an anti-static pad on a sturdy, flat surface.
3). Remove the eleven screws fastening the top cover and faceplate to the main board of the I/O module (five screws on top, two screws on the sides, four screws on the bottom). See Figure 1.
4). Unscrew the four pan head screws that secure the option module to the standoffs on the I/O module. See Figure 2.
5). With your fingers under the faceplate and on the back edge of the option module, gently rock the option module back and forth 10 to 15 times while lifting the option module straight off the I/O module motherboard connectors. The option module should never be more that five degrees from level. See Figure 3.
6). If you are removing an option module with RJ45 ports from an S-Series module that supports PoE, use a pair of pliers to remove the PoE power header from the I/O module if the PoE power header does not come out with the option module. You will feel some resistance as you unseat the PoE power header from the connector on the I/O module. You may need to use a slight side-to-side motion to unseat the PoE power header. See Figure 4.
7). Reinstall the faceplate and top cover of the I/O module.