Figure D-4: Typical End-To-End Data With Flow Control - PictureTel Concorde 4500 Servicing Manual

RX DTE
Yes Input No
buff full
DTR DTR
Hi Lo
DSR
RX data RX data
valid invalid
The following table describes these modem control signals and how
they are implemented to accomplish ßow control in the
Concorde¥4500.
RX Concorde 4500
Yes No
DTR ?
DSR DSR
Send Buffer
data data

Figure D-4: Typical End-to-End Data with Flow Control

Flow Control Between DTE Devices
TX Concorde 4500
Yes No
Buf <
1
/ full
2
Hi
Lo
RTS
Hi
Lo
DSR
CTS CTS
DSR
Send Buffer
data data
TX DTE
Yes Data in No
O/P buffer
RTS RTS
Hi Lo
CTS
Send Buffer
data data
D-7