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 7-2. Save these screws for use later.
Figure 7-2 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.
9. Using the insertion/extraction handles, remove the DS1 card from the anti-static bag and place it heat sink side up on the grounded work surface. See Figure 7-3.
Figure 7-3 DS1 card with heat sink facing up
10. Remove the DSP module from its anti-static bag, holding only the edges of the card.
11. Choose a DSP position on the DS1 card in which to install the DSP card. The card will self-discover and the data will route appropriately.
12. Holding the DSP card by the sides, first rotate it at an angle and then slide it under the lip of the metal face plate of the DS1 card. Gently lower the DSP module down to the DS1 card connectors and align the two cards. It is at this point of contact that the connectors will begin to mate. See Figure 7-4.
13. Place your fingers under the DS1 board and press firmly with your thumbs directly over the three connec- tors until the connectors are fully mated as shown.
Figure 7-5 Connectors flush and screws re-installed
14. With the DSP card fully mated, turn the assembly over and insert the four screws in the holes of the DS1 card matching the standoff spacers of the newly installed DSP card. Turn the screws clockwise with the #1 Phillips screwdriver until snug. DO NOT FULLY TIGHTEN IN THIS POSITION.
15. Turn the card up on its side with the handles facing up. See Figure 7-6. Holding the faceplate and ejector handle firmly, torque each screw clockwise to 6” lbs (.68 Nm).
Figure 7-6 DS1 card on its side to torque screws
16. Place the card assembly back into the 12” (305mm) x 12” (305mm) anti-static bag and seal the opening. Remove the plug end of your ESD wrist strap from your work area.
17. Connect the wrist strap to the earth grounded socket on the front of the CMS. Using the insertion/extrac- tion handles, remove the DS1 card assembly from the anti-static bag. The handles must be in the open position prior to insertion of a card in the chassis slot.
18. Insert the DS1 card into the chassis (see Replace WAN/System Controller/CPU cards of identical type in this chapter for more information).
19. With the card handles closed, start a CLI session to the Tenor CMS to view the additional resources installed. Additional DS1 WAN lines may be connected to the DS1 interface card at any time prior to or after power up. Turn on power to the chassis and confirm the additional DSP resources are available.
20. Fasten the screw on each insertion/extraction handle and torque them clockwise to 6” lbs (.68Nm).
Move card location or change card type
To make changes to the card location or the card types in your Tenor CMS, you must perform software as well as hardware procedures. See below.
1. Initiate a CLI session. See Chapter 4: Getting Started with Configuration for more information.
2. After the login prompt, at the initialprompt, access the slot in which the card is located (i.e., type slot 5). The prompt for that slot will be displayed.
3. Type remove. The card will be removed from the database.
4. Power down the chassis and unplug the power cord from the unit to prevent any accidental power cycling of the CMS.
5. Follow steps 1-7 only, as outlined in the section titled Replace WAN/System Controller/CPU cards of iden- tical type in this chapter.
6. Physically remove the Rear Transition Module (RTM), if a WAN or a DS1 card slot is being changed or relocated. For more information about rear transition module cards, see Chapter 2: Hardware Components
and Card Maintenance/Replacement earlier in this chapter.
CAUTION: Front application T1, E1 of DS1 cards must always be matched with their appropriate rear
transition modules. DSP cards must never have a Rear Transition Module (RTM) installed behind them in the same slot number.
7. With a grounded wrist strap, install the new card or install the card in a new location, and only when required, install the matching rear transition card. This may require moving the blank face plates. Re- tighten handle lock down screws with a #1 Phillips screwdriver.
8. Replace the power cord back into the rear of the chassis and turn on the power switch. The Tenor CMS will auto detect the new cards and/or locations.
NOTE: Depending upon your network, additional configuration may be required. Consult the CMS CLI