Parallel Port; Serial Port; Filter Value Out; Figure 3-2. Electrical Connections (Rear Panel) - Sutter Instrument Lambda DG-4 Operation Manual

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3.5.1 Parallel Port

This 25-pin DSUB connector is used for establishing a parallel interface between the Lambda
DG-4/5 and a remote device (computer) using the cable provided. This cable should not be
used simultaneously with the serial port cable.

3.5.2 Serial Port

This 9-pin DSUB connector is used for establishing a serial interface between the Lambda
DG-4/5 and a remote device (computer) using the cable provided. This cable should not be
used simultaneously with the parallel port cable.

3.5.3 Filter Value Out

This 8-pin, Modular connector provides a digital indicator of the value of the FILTER
NUMBER in use. Pin numbers 1 through 4 correspond to the bit number of the 4-bit binary
equivalent of the decimal FILTER NUMBER value. Pin 5 carries the BUSY line signal and
pins 6 through 8 are tied to ground.

Figure 3-2. Electrical connections (rear panel).

LAMBDA DG-4 & DG-5 OPERATION MANUAL – REV. 3.05C (20150414)