33Introduction to Keypad dialing
fi‡ HDLC On Dial fi‡.
fi° Assert RTS Off Dial fi°.
When RTS is ON the MCA forces the RTS lead active and
assumes the local DTE is always ready to transmit or
receive data. There is no flow control.
fi· Assert RTS On Dial fi·.
RTS OFF allows RTS/CTS hardware flow control
handshaking. The local DTE can stop the data flow by
dropping the RTS lead, and the MCA drops the CTS lead.
The MCA then sends a message to the far end to drop the
CTS lead. When the DTE is ready, it starts the flow by
raising the RTS lead. The MCA raises the CTS lead and
the data transmits again.
Utilizing flow control (RTS OFF) allows the MCA to
operate with printers or other DTE devices that also
utilities flow control.
fl‚ Auto Dial Programming Dial fl‚. Display reads:
ADIAL
ENTER DIGITS,
fl⁄ Auto Dial Call Dial fl⁄.
fl¤ Data Parameter Display Dial fl¤.
fl‹ EIA leads Status Display Dial fl‹.
TXD RXD DCD DTR DSR
o o . . .
The display shows the status of the EIA leads of the
RS-232 connected to the MCA. A dark circle indicates the
lead is active. This feature is used for troubleshooting.
When in synchronous mode TXD and RXD are dark.
These are not used in this mode, and have no meaning.
fl› Monitor data call Dial fl›. When call port is busy, the display on the
telephone reads: RING AGAIN PLACED
Refer to Keypad command 39 to turn Ring Again off.
flfi Reset to Default
Parameters Dial flfi.
Unplugging the telephone does not reset MCA
configuration.
MCACommandnumberMCA parameter Keypad dialing notes