CHAPTER 3: Installation
33
Procedure:
To change the status of end-to-end software flow control used on this sub-channel, type the appropriate code
number. The new selection appears in the Current State line. Type
Q
to return to the Local Sub-Channel
Configuration screen (8).
15. End-to-End DTR Flow Control Screen
Purpose:
View the current status of end-to-end hardware flow control (by means of DTR line) used on this sub-
channel and select a new status, if desired.
Description:
There are applications in which you cannot use end-to-end (DTE-to-DTE) software flow-control, but the end-to-
end flow control function described in 14 is nevertheless essential. In these applications, the stat mux can be
configured to use the “end-to-end” DTR flow control by setting ON in this screen. In this mode, the stat mux
monitors the DTR line contained in the standard RS-232 interface and transmits the status of this line to the
remote stat mux. The remote stat mux then supplies to the DTE connected to it the flow-control commands
according to the stat mux-to-DTE flow-control modes selected at the remote stat mux.
Selecting OFF on this screen disables the transmission of flow-control commands to the remote stat mux when
the DTR line changes state.
Screen selections are as follows: Code numbers 1 and 2 list the available selections of end-to-end hardware flow
control status: on or off.
Type
Q
to return to the Local Sub-Channel Configuration screen (8). The Current State line shows the current
status of end-to-end hardware flow control.
Procedure:
To change the status of end-to-end hardware flow control used on this sub-channel, type the appropriate code
number. The new selection appears in the Current State line.
Type
Q
to return to the Local Sub-Channel Configuration screen (8).
16. RTS Control Pass Screen
Purpose:
View the current status of the RTS-to-DCD control function used on this sub-channel, and select a new
status, if desired.
Description:
The stat muxes can transfer end-to-end (in both directions), one RS-232 interface control signal per channel:
when this function is enabled, the condition of the RTS line is copied to the remote DCD line.
Screen selections are as follows: Code numbers 1 and 2 list the available selections of the RTS-to-DCD transfer
status: on or off.
Type
Q
to return to the Local Sub-Channel Configuration screen (8). The Current State line shows the current
status of the RTS-to-DCD transfer.
