
Across the Boards
Communications Device Drivers
Section 6 - MAINCON Driver Configuration
Page 264
cfSOFTWARE Confidential,
2000
6.19 MAINCON Panel D6, DEC VT220 (continued)
5. HW Flow - Hardware Flow Control Option
‘0’/‘1’/‘2’ - none/CTS-RTS/DSR-DTR. Selects type of hardware flow control, usually used with error
correcting modems. Setting CTS/RTS will prevent the driver from sending data unless the modem raises
CTS, setting DSR/DTS prevents the driver from sending unless the modem raises DSR. CTS/RTS is most
commonly used with error correcting modems.
6. Flicker
Controls how much extra time (in 100ths of a second) will be spent waiting to insure that the protocol
converter has stopped sending data.
7. Keydelay
The number of milliseconds delay between sending characters to the protocol converter. This can be used
to prevent overruns at the protocol converter.
8. Comm
CFG.POR. For Windows and OS/2, COM1 through COM9 may be specified.
9. Baud
The required baud rate. 300=300bps, 1200=1200bps, 2400=2400bps, 4800=4800bps, 9600=9600bps,
144=14400bps, 192=19.2kbps, 18=19.2kbps (synonym), 288=28800bps, 38=38400bps, 56=56kbps,
115=115kbps.
NOTE
: Not all drivers and environments support all baud rates.
10. Parity
‘E’ = Even, ‘O’ = Odd, ‘S’ = Space, ‘M’ = Mark, and ‘N’ = None.
11. Data Bits
‘7’ or ‘8’ data bits.
12. Stop Bits
‘1’ or ‘2’ stop bits.
13. Half-Duplex
Setting this field to ‘1’ will cause the VT220 emulator to operate in half-duplex mode. Half-duplex mode is
significantly inferior to full-duplex mode for terminal emulation and data transfer. Full-duplex mode should
be used where ever possible.
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