Cisco 7000 Hardware Installation And Maintenance page 232

Installing and Configuring Processor Modules
Figure 5-22
Step 6
Step 7
Step 8
5-228 Cisco 7000 Hardware Installation and Maintenance
Installing an E1 Port Adapter
Place your fingers over the BTB connector and firmly (but gently) press down until the
BTB connector mates with the MIP connector. If the connector resists, do not force it. Shift
the port adapter around until the connectors mate properly.
Insert the four long Phillips screws through the four port adapter holes and finger-tighten
them. These screws extend through the standoffs and the MIP board and thread into the
metal carrier.
Install a lockwasher on each of the two jackscrews.