# Installing the hardware

To install a CX 2000 board:

1. If necessary, configure bus termination as described in Terminating the H.100 bus.

2. Turn off the computer and disconnect it from the power source.

3. Remove the cover and set it aside.

4. If you are placing the board into:

- A PCI chassis, remove the PCI retainer bracket by unscrewing it from the board. The bracket is not needed for the board to properly fit into the chassis.

- An ISA chassis, leave the PCI retainer bracket attached to the board. The bracket is needed for the board to properly fit into the chassis.

5. Arrange the CX 2000 board and other H.100 boards in adjacent PCI bus slots.

6. Make sure each board's PCI bus connector is seated securely in a slot.

7. Secure the end bracket on the CX 2000 board to the PC.

8. Connect the H.100 bus cable to the CX 2000 board.

9. If you have multiple H.100 boards, connect the H.100 bus cable to each of the H.100 boards.

10. Replace the cover, and connect the computer to its power source.

11. Install Natural Access as described in the Natural Access installation booklet.

12. Connect station telephones to the board as described in Connecting to station telephones.

13. Connect a power supply to the board as described in Using the NMS rack mount power supply chassis or Using an alternative power supply.