User's Manual

11. Add-In Cards

Adding/Removing Master Station Add-in Cards

To add or remove an add-in card the Master Station must be opened. The procedure below must be

followed correctly to maintain IP67 integrity and to prevent damage to the Master Station and Add-in

Cards.

Parts/Tools Required

 #1 and #2 Philips bits

 Torque wrench capable of measuring 2 - 6 lbf-in (20 - 70 N-cm) of torque

Procedure

IMPORTANT: Failure to observe torque specifications will result in a compromise of

IP67 integrity.

Disassembly

1. Disconnect all radio and Ethernet cables from the Master Station. Mark them if necessary for

reconnection later.

2. Remove the six main cover screws (Figure 11.1).

3. Remove the enclosure bottom.

4. Disconnect the power cable assy from the main PCB assy (Figure 11.2).

5. Remove the four screws which attach the main PCB assy to the standoffs (Figure 11.3).

6. Gently remove the main PCB assy from the cover assy and set aside.

Adding card(s)

1. Remove the eight screws from the blank plate and remove the plate (Figure 11.4).

2. Ensure there are gaskets on each of the four ports of the card and that no leftover gaskets are

stuck to the backside of the front panel.

3. Insert the new card into the plastic cover and tighten the eight screws to 3 lb-in (34 N-cm).

Removing card(s)

1. Remove the eight screws from the card and remove the card (Figure 11.4).

2. Ensure there are gaskets on each of the four ports of the blank plate and that no leftover gaskets

are stuck to the backside of the front panel.

3. Insert a blank plate into the plastic cover and tighten the eight screws to 3 lb-in (34 N-cm).

Reassembly

1. Gently attach the main PCB assy to the cover assy, ensuring the “fingers” on the add-in cards line up

with and insert fully into the connectors on the main PCB assy (Figure 11.3).

2. Tighten the four screws which attach the main PCB assy to the standoffs to 2 lb-in (23 N-cm).

3. Reconnect the power cable assy to the main PCB assy (Figure 11.2).

4. Place entire assembly back into enclosure bottom (Figure 11.1).

5. Replace the six main cover screws and tighten to 6 lb-in (68 N-cm).

Comment [DB6]: Move Figures

11.1, 11.2 and 11.3 here?