3Com 4200G Installation Guide - Page 2

(3) (1) (4) (2) (1): Switch (3): XFP interface module (2): Optional module slot (4): Push-in direction Figure 3 Installing an XFP interface module Note: (1) Store the filler panel for future use. (2) When tightening the fastening screws at both sides of the optional module with a screwdriver or an electric screwdriver, make sure that the torque is not bigger than 0.4 N-m. 1.3 Removal Step 1: Put on an ESD-preventive wrist strap and verify it is properly grounded. Step 2: Loosen the fastening screws at both sides of the XFP interface module using a screwdriver. Step 3: Pull the XFP interface module towards you, until it completely comes out of the switch chassis. Note: When installing or removing an optional interface module, pay attention to the following points: (1) Do not use too much force in the operation, and do not touch the surface-mounted components directly with your hands. (2) After removing an optional module, if no new module is to be installed, install the filler panel as soon as possible to prevent dust and ensure the normal ventilation in the switch. 2