Cisco AIR-AP1252AG-E-K9 Hardware Installation Guide - Page 150
Overview, Console Port Signals and Pinouts
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Overview Appendix E Console Cable Pinouts Overview The access point requires a special serial cable that connects the access point serial console port (RJ-45 connector) to your PC's COM port (DB-9 connector). This cable can be purchased from Cisco (part number AIR-CONCAB1200) or can be built using the pinouts in this appendix. Console Port Signals and Pinouts Use the console RJ-45 to DB-9 serial cable to connect the access point's console port to the COM port of your PC running a terminal emulation program. Note Both the Ethernet and console ports use RJ-45 connectors. Be careful to avoid accidently connecting the serial cable to the Ethernet port connector. Note When your configuration changes are completed, you must remove the serial cable from the access point. Table E-1 lists the signals and pinouts for the console RJ-45 to DB-9 serial cable. Table E-1 Signals and Pinouts for a Console RJ-45 to DB-9 Serial Cable Console Port PC COM Port RJ-45 Pins Signals1, 2, 3, 4 DB-9 Pins Signals1, 2, 3, 4 1 NC -- 2 NC -- 3 TXD 2 RXD 4 GND 5 GND 5 GND 5 GND 6 RXD 3 TXD 7 NC -- 8 NC -- 1. NC indicates not connected. 2. TXD indicates transmit data. 3. GND indicates ground. 4. RXD indicates receive data. Cisco Aironet 1200 Series Access Point Hardware Installation Guide E-2 OL-4310-05