PMAC Product Guide J6 - Auxiliary I/O Port Connector (JXIO Port) This connector is considered an advanced feature and it is not used on a standard application. J7 - A/D Port Connector (JS1 Port) This connector is considered an advanced feature and it is not used on a standard application. J8 - Position-Compare Connector (JEQU Port) For a typical application, the most important feature of this connector is to connect an external power supply to use flag sensors in the 12 to 24V range which is otherwise limited to up to a 15V operation. Other features of this connector are considered advanced and are not used on a standard application.
J11 - Machine Connector (JMACH Connector) This connector, labeled J11, contains the pins for four channels of machine I/O: analog outputs, incremental encoder inputs, and associated input and output flags, plus power supply connections. Usually, lines on this connector are accessed through the ACC-8P or ACC-8D breakout boards. TB1 – Power Supply Terminal Block This terminal block can be used to provide the input for the power supply for the circuits on the PMAC- Lite board when it is not in a bus configuration. However, it is recommended to use the ACC-8P or equivalent terminal block for the power supply connections. LED Indicators The Universal PMAC Lite has three LED indicators:
red, yellow, and green. When the green LED is lit, this indicates that power is applied to the +5V input; when the red LED is lit, this indicates that the watchdog timer has tripped and shut down the PMAC. The yellow LED located beside the red and green LEDs, when lit, indicates that the phase-locked loop that multiplies the CPU clock frequency from the crystal frequency on the Option CPU is operational and stable. This indicator is for diagnostic purposes only; it may not be present on your board. Fuse The 5V output through the J5 JOPTO connector is protected by F1, which is a 2-Amp fuse of the following type: Manufacturer: LittleFuse Part Number: 021-273002-004 4 Introduction