User`s guide

Chapter 2 Front Panel Operations RIGOL
M300 User’s Guide
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 RTS/CTS
This mode is hardware flow control mode and it operates the same as the
DTR/DSR mode. The instrument monitors the state of the CTS pin. When
the state goes “True”, the instrument sends data over the interface. When
the state goes “False”, the instrument stops sending data. The instrument
sets the RTS pin “False” when the input buffer is almost full (approximately
100 characters) and sets the pin “True” when space is available again.
 MODEM
This mode uses the DTR/DSR and RTS/CTS pins to control the flow of data
between the instrument and a modem. When the RS232 interface is
selected, the instrument sets the DTR pin “True”. The DSR pin is set “True”
when the modem is on-line. The modem sets the CTS pin “True” when it is
ready to receive data. The instrument sets the RTS pin “True” when it is
ready to receive data. The instrument sets the RTS pin “False” when the
input buffer is almost full (approximately 100 characters) and set the RTS
pin “True” when space is available again.
4 Baud Rate
Use the up/down direction keys to select Baud and use the left/right direction
keys to select the desired value (4800, 9600, 19200, 38400, 57600 and 115200).
The unit is Baud. Please select a baud rate that matches the PC or DTE. The
current setting is stored in the non-volatile memory.
To Set LAN Parameters
Connect the instrument to the PC or the network of the PC using network cable
before using the LAN interface. Press Utility  I/O  LAN to enter the interface.
1 Status
Display the current LAN Status. Use the up/down direction keys to view other
information about network connection as shown in the figure below.
 Connected
 Disconnected
 LAN Configure…
 IP Conflict
2 IP Mode
The IP address configuration mode can be DHCP, AutoIP or ManualIP. By default,
DHCP is enabled, AutoIP and ManualIP are disabled. In different IP
configuration mode, the configuration mode of network parameters (such as the
IP address) is different.