Aiphone AI-900 - Manual (Page 40)

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13. MAIN FRAME AND PC CONNECTION
13.1. Programming PC Connection
13.1.1. Direct connection by means of RS-232C
Using the RS-232C cable, connect the programming PC to the AI-900MF Main Frame as shown below.
Direct connection by means of RS-232C (Programming PC)
AI-900MF
Main Frame AI-900MF
Front view
PC
COM2 COM2
COM1
RS-232C straight cable
RS-232C straight cable
Programming PC
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI