CHAPTER 3: Installation
31
11. Parity Screen
Purpose:
View current parity used by the sub-channel and select, if desired, a new type.
Description:
Code numbers 1 through 5 list the available parity types: even, odd, space, mark, or no parity.
Type
Q
to return to the Local Sub-Channel Configuration screen (8).
The Current State line shows the current type of parity.
Procedure:
To change the type of parity, type the appropriate code number. The new selection appears in the Current State
line. If you changed the type of parity on the command sub-channel (the sub-channel you are now connected
to), reprogram your terminal for the new value, so that you will be able to continue. After completing the
required actions, type
Q
to return to the Local Sub-Channel Configuration screen (8).
12. Stop Bits Screen
Purpose:
View the current number of stop bits used by the sub-channel and select a new value, if desired.
Description:
Code numbers 1 through 3 list the different number of stop bits you can select: 1, 1.5, or 2. Type
Q
to return to
the Local Sub-Channel Configuration screen (8).
The Current State line shows the current number of stop bits.
Procedure:
To change the number of stop bits, type the appropriate code number. The new selection appears in the
Current State line.
If you changed the number of stop bits on the command sub-channel (the sub-channel you are now connected
to), reprogram your terminal for the new value, so that you will be able to continue.
After completing the required actions, type
Q
to return to the Local Sub-Channel Configuration screen (8).
13. Stat Mux-to-DTE Software Flow Control Screen
Purpose:
View the current status of software flow control used on this sub-channel and select, if desired, a new
status.
Description:
The stat mux must be able to command the DTE connected to it to interrupt the flow of data when stat mux
buffers fill, and restart the flow when the stat mux can accept new data for transmission. This function is
mandatory whenever you use statistical multiplexors, and is additional to the end-to-end flow-control function
(see 14 and 15).
Some DTEs can stop data flow when receiving a special character, X-OFF, and renew data flow when receiving
another character, X-ON (see 3 and 4). This capability is termed “software data flow control,” and you can
program the stat mux to use this capability by selecting the ON option on this screen.
