Features: 100% brand new and high quality The output of this terminal block is actually an electronic switch, double-conducting, Therefore, the terminal block can also be used in the detecting device to control the on/off of a signal or a small load. This terminal block is a signal conversion isolation terminal block that can be used for isolation of highly stable input points. The digital quantity is optically isolated. The PNP signal can also be converted to an NPN signal or an NPN signal can be converted to a PNP signal. The default input voltage of this terminal block is 10-28V. Specification: Model:DG04 Input voltage: 10-28v dc Output on-voltage: 1v Maximum output frequency :10 KHZ Output rated load current :50mA (AC/DC) Maximum output load voltage: 10-28v Output isolation voltage :3750Vrms (min) Operating temperature :-40 ~ 85℃ Weight: Approx.65g/2.3oz Instructions: When the input is NPN, the input common terminal COM is connected to a high level, and when the input signal is at a low level, the corresponding input indication is red light When the input is PNP, the input common terminal COM is connected to the low level, and when the input signal high level is effective, the corresponding input indication is blue light Application examples: When PNP signal turns into NPN signal, the input common point COM and the output common point C are connected with low level 0V When the NPN signal turns into PNP signal, the input common point COM and the output common point C are all connected with high level 24V Package list: 1 x 4 channel level converter