Polycom EX 用户指南
ViewStation EX, ViewStation FX, and VS4000 API Guide
8
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RS-232 Serial Cable Pinout and Connections (ViewStation
EX and FX)
EX and FX)
The RS-232 serial cable has a 9-pin DB-9 connector on one end and
an 8-pin mini-DIN connector on the other end. It is used to connect
the ViewStation EX or ViewStation FX to a terminal or another
communications device.
an 8-pin mini-DIN connector on the other end. It is used to connect
the ViewStation EX or ViewStation FX to a terminal or another
communications device.
Pin Number
Function
1 - DCD
Data Carrier Detect
2 - RX
Receive
3 - TX
Transmit
4 - DTR
Data Terminal Ready
5 - GND
Ground
6 - DSR
Data Set Ready
7 - RTS
Ready to Send
8 - CTS
Clear to Send
9 - RI
This pin is not used.