Cisco 3825 Hardware Installation Guide - Page 149

Chapter 8 Connecting Voice Network Modules 60-Channel High-Density Voice Network Module Installing PVDMs To install PVDMs, follow these steps: Step 1 Find the PVDM sockets on the HDV network module. (See Figure 8-7.) Caution Handle PVDMs by the card edges only. PVDMs are ESD-sensitive components and can be damaged by mishandling. Step 2 Step 3 Step 4 Hold the PVDM with the polarization notch on the right, near the front of the chassis, and the component side away from you, with the connector edge at the bottom. (See Figure 8-8.) Beginning with bank 0, insert the PVDM into the connector slot at an angle, tilted toward the right side of the chassis. Align the PVDM in a vertical position (see Figure 8-10) by using the minimum amount of force required. When the PVDM is properly seated, the socket guide posts fit through the alignment holes, and the connector springs click into place. Ensure that each PVDM is straight and that the alignment holes (as shown in Figure 8-9) line up with the plastic guides on the socket. Figure 8-10 Installing PVDMs View from front of board 1. Insert the PVDM into the socket at an angle from vertical. 2. Push the top of the PVDM down and back. 3. The socket guide posts fit through the holes in the PVDM. 4. The locking springs clip the back of the PVDM. 23604 Caution It is normal to feel some resistance, but do not use excessive force on the PVDM and do not touch the surface components. Step 5 Repeat Step 2 through Step 4 for each PVDM. OL-2485-20 Cisco Network Modules Hardware Installation Guide 8-7