9
Step 5 - Replace the Power/Thermal
Module
Follow the steps below to replace the power/
thermal module.
1.
Disconnect the nine cables from the power/
thermal module (see Figure 20).
To avoid stressing the coax cables (nos. 7-9 in
Figure 20), hold the base of the connector while
loosening.
To avoid breaking the DB9 connectors’ retaining
screws (no. 1 and no. 6 in Figure 20), loosen the
retaining screws with a jeweler’s screwdriver.
2.
Loosen the three captive screws securing the
power/thermal module to the frame (see
Figure 21). Remove the power/thermal module.
3.
Secure the new
“HTS Ready”
power/thermal
module to the frame. Tighten the captive screws
to 32 in.-lbs of torque.
4.
Reconnect the nine cables to the power/thermal
module. Match the labels on the cables with the
labels on the power/thermal module.
When reconnecting the coax cables (nos. 7-9 in
Figure 20), hold the base of the connector while
tightening. Tighten to 15 in.-lbs of torque.
When reconnecting the cables that have DB9
connectors (no. 1 and no. 6 in Figure 20), tighten
the retaining screws to 5 in.-lbs of torque. Do
not overtighten – these screws break easily.
Important!
Do not use excessive force when loosening or
tightening the DB9 connectors’ retaining screws.
Figure 20: Cable Connectors (HTS Ready Power/Thermal Module Shown)
Figure 21: Captive Screws (HTS Ready Power/Thermal Module Shown)
