Installation Guide

Table Of Contents
Figure 257: Null-Modem Cable Pinouts
Figure 258 shows the pinouts for a 9-pin to 9-pin (PC-AT) null-modem serial cable.
Figure 258: PC-AT Serial Null-modem Cable Pinouts
Table 308 shows the pinouts for the RJ45 console port on the ExtremeSwitching switches.
Table 308: RJ45 Console Port on Switch
Function Pin Number Direction
CTS (clear to send) 1 In
DTR (data carrier detect) 2 Out
TXD (transmit data) 3 Out
GND (ground) 4
GND (ground) 5
RXD (receive data) 6 In
Technical Specifications
ExtremeSwitching and Summit Switches: Hardware Installation Guide 394