Removing the Transcoder DSP Module

The following procedure describes how to remove the Transcoding Module (TM) from the TCU.

Prerequisites:

• Provide an ESD-safe location to place the TM and TCU.
• Wear an ESD wrist strap or take similar equivalent actions to prevent static damage to the TCU or other ESD-sensitive components.
• Note the location of the TM connector on the TCU.

  To remove the TM:

1. Remove the TCU as directed in the Acme Packet 6300/6350 Service Manual.
2. Place the TCU in an ESD-safe location.
3. To remove the TM (as shown in the photos below), use a fingertip to release the catch holding either end of the module.
   

   Releasing the Fastener Holding the TM (1 of 2)

   

   Releasing the Fastener Holding the TM (1 of 2)

4. Once the fastener is detached from one side of the TM, slightly lift up on that side of the module and then disengage the other fastener on the other side of the TM and lift up on that side of the module.
5. When both sides are free of the fasteners, hold the center of the module between your finger and thumb and slowly remove the module. Be careful to keep the module level while removing it and guide it smoothly through the guide slots on either side.
   

   Removing the TM

6. Place the TM on an ESD-safe antistatic surface.