Agilent Technologies E1301B, E1300B Asserted. This acts to pace the System Instrument output

	handshake mode is enabled, the System Instrument will not transmit characters
	when either the CTS (Clear to Send) or the DSR (Data Set Ready) lines are not
	asserted. This acts to pace the System Instrument output.
NOTE
	The E1405 Command Module RS-232 interface is implemented as a DTE (Data
	Terminating Equipment). Since most computer RS-232 interfaces are also
	implemented as DTEs, a cable that does line swapping (null modem cable) is
	usually used to connect the computer to the instrument. This cable typically
	swaps the receive and transmit lines. It will usually connect the DTR line of one
	interface to the CTS and DSR lines of the other. It will connect the RTS line of
	one interface to the DCD (Data Carrier Detect) line of the other.

CAUTION	The RS-232 interface of the E1405 Command Module will echo any characters
	received with an ASCII value greater than 32 and less than 128. Carriage returns
	are echoed as carriage return/linefeed. When transferring the driver file, these
	echoes can fill up the RS-232 receive buffer of your computer if they are not
	read. If receive pacing is enabled for your computer this could cause the
	computer to send the "Stop Transmitting" signal to the System Instrument, which
	could block the remaining downloaded bytes or other commands sent after the
	download. Since the driver file contains command strings and many carriage
	returns that will be echoed by the system, your program should read the
	returning echo characters from the RS-232 line. This will also let you determine
	if there are any error messages coming back.

Transmitting Using a COPY On some computers it is possible to use an RS-232 or GPIB port and the copy Command command to transfer the device driver. Hardware or software handshake must

be used by the copy command on the computer doing the downloading, and the same handshake mode must be enabled on the System Instrument.

1.Set the required handshake mode and data format (e.g., on DOS systems use the MODE command).

2.Type "COPY filenam e port" to transfer the file through the RS-232 port to the System Instrument (e.g., on a DOS system you might use "COPY /B filenam e.DC COM1:"). This command may be slightly different depending on the type of computer being used.

NOTE	Since errors are echoed immediately, this method of transfer has no means of
	trapping errors.

Downloading Device Drivers 5-13