Avlink MRM-602P - Manual (Page 21)

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6.5 Ports and Switchers
The MRM-602P Switcher provides standard RS-232 serial communication port as well
as LAN for remotely managing , and Dip Switch for locally setting. Besides the front
panel is ideally for the local switching, managing and setting operation.
6.5.1 RS-232
The RS-232 Pin functions are described as below:
Pin No. Abbreviation Description
1 N/u Null
2 TXD Send
3 RXD Receive
4 N/u Null
5 GND Ground
6 N/u Null
7 N/u Null
8 N/u Null
9 N/u Null
Figure 6-8 (a)