36 CHAPTER 2: INSTALLING THE S WITCH 7700Installing the FanAssemblyTo install the fan:1 Wear an antistatic wrist strap.2 Remove the fan frame from the pack.3 Hold the ejector levers on the fan frame with both hands and push them outward.4 Align the fan with the guides in the chassis and slide it gently into the slot.5 Push the fan until its positioning pin touches the hole in the chassis.6 Push the ejector levers inward.7 Push the handle bar pin into the hole in the chassis.WARNING: To avoid injury, do not touch any naked wire, terminal, or any otherpart of the product labelled Dangerous Voltage. Always wear the antistatic wriststrap when installing the fan.Installing Cables This section describes how to connect console and AUX cables to the Switch7700.Connecting the ConsoleCableThe console cable is an 8-core shielded cable. One end of the cable has a crimpedRJ-45 connector, which is plugged into the console port of the switch. The otherend has both a DB-9-hole connector and a DB-25-hole connector for connectionto a 9-hole or 25-hole serial port at the configuration terminal.See “Console Cable” on page 63 for cable illustration and pinout details.To connect a terminal or PC to the Switch 7700 using the console cable:1 Plug the DB-9 or DB-25 female plug of the console cable to the serial port of thePC or the terminal where the switch is to be configured.2 Connect the RJ-45 connector of the console cable to the console port of theswitch.Connecting the AUXCableAn AUX cable is used to connect the Switch 7700 to a modem in a remote dial-upconfiguration.The AUX cable is an 8-core shielded cable. One end of the cable is an RS-232RJ-45 connector, which is used to plug into the switch at the console port. Theother end has both a DB-9-pin connector and a DB-25 pin for connection to a9-hole or 25-hole serial port on the virtual modem.See “AUX Cable” on page 63 for cable illustration and pinout details.To connect the AUX cable:1 Plug the RJ-45 end of the AUX cable into the switch console port.2 Connect the DB-25 or DB-9 end of the AUX cable to the serial port of the virtualmodem.