HP 480-0005-00-15 - Manual (Page 156)

P/N 480-0005-00-15 8-16
Chapter 8: Diagnostics/Maintenance
Replace/Change DSP Module (on DS1 card)
The instructions below are for replacing/changing the DSP module—a component of the DS1 card.
NOTE: Since you will need to turn off your chassis for this procedure, you may want to reduce the down
time by first familiarizing yourself with the process.
NOTE: A License file must be purchased in conjunction with any hardware upgrade (this file enables the
new DS1 board to self-discover the DSP module and route data). Contact Quintum Customer Ser-
vice for more information.
Before you begin, you will need the following materials:
• ESD wrist strap (shipped with chassis)
• 12” (305 mm) x 12” (305mm) anti-static bag
• #1 Phillips screwdriver
• DSP Resource module (still in the anti-static bag)
NOTE: For information about preventing electrostatic discharge, see Chapter 3: Installation.)
1. Identify a flat anti-static work area which contains an earth ground connection to the surface and to a
socket for the ESD wrist strap.
2. Put on the ESD wrist strap.
3. On the ESD safe work surface, holding the edges, carefully remove the DSP module card from the anti-
static bag.
4. With a #1 Phillips screwdriver, remove the four screws in the exposed end of the metal standoff spacers.
See Figure 8-2. Save these screws for use later.
Figure 8-2 Remove four screws from exposed end
5. Place the DSP module back into the anti-static bag and seal it. Disconnect the plug end of the wrist strap.
6. Plug the plug end of the wrist strap into earth ground socket in the front of the chassis.
7. Remove the DS1 card from the chassis (for more information about removing/inserting WAN cards, see
Replace WAN/System Controller/CPU cards of identical type in this chapter). Insert it into the 12” x 12”
anti-static bag and close the opening.
8. Disconnect the plug end of the wrist strap from the chassis and plug it back into an earth grounded socket
at the work area.