3-10 Model 2790 SourceMeter® Switch System User’s ManualFront panel operationFor system channel operation, there are two methods to close an input channel. You canuse the and keys or the SINGLE option for the CLOSE key. The OPEN:ALLoption for the OPEN key opens all channels.and keysThese front panel keys (Figure 3-6) can be used to select the next or previous inputchannel.Figure 3-6and keysWith the first 7702 input channel closed (displayed), pressing the key opens the closedinput channel. With the last 7702 input channel closed (displayed), pressing the keyopens the closed input channel.CLOSE keyAs shown in Figure 3-7, the SINGLE option of the CLOSE key can be used to close aninput channel, while the MULT option can be used to close multiple channels.Figure 3-7CLOSE keyClose nextinput channelClose previousinput channelCLOSEOPENCLOSE CH: XXXCLOSE:SINGLEPress CLOSE keyDisplay SINGLE optionand press ENTERSpecify channel number(XXX) and press ENTERCLOSEOPENCLOSE MULT:XXXCLOSE:MULTPress CLOSE keyDisplay MULT optionand press ENTERSpecify channel number(XXX) and press ENTERA) Closing a single channel B) Closing multiple channels