MRV Communications MR2228-S2C - Manual (Page 24)

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Table 3-1. Serial Cable Wiring
Switch’s 9-Pin
Serial Port
Null Modem PC’s 9-Pin
DTE Port
2 RXD (receive data) <---------------------------- 3 TXD (transmit data)
3 TXD (transmit data) -----------------------------> 2 RXD (receive data)
5 SGND (signal ground) ------------------------------ 5 SGND (signal ground)
The serial port’s configuration requirements are as follows:
• Default Baud rate—9,600 bps
• Character Size—8 Characters
• Parity—None
• Stop bit—One
• Data bits—8