37 Keysight PXI General Purpose Switch Modules Startup GuideGeneral Purpose Module AccessoriesY1181A 78 Pin Shielded Connector BlockThis shielded connector block provides a simple method of connecting wires to aKeysight M9130A PXI switch module with a 78 pin D-Type front panel connector.The screw terminals accept wires up to 20AWG and the connector block hassimple screw clamp for strain relief. The recommended torque for the screwterminal is 0.12 - 0.15 Nm. PTFE insulated cables are recommended. Thefollowing diagram shows the pinout of the connector block. The pin numbersmatch the pin numbers on the switch module’s front panel connector.Figure 8 Y1181A 78 Pin Terminal Block Wiring DiagramVoltages greater than 30 Vrms, 42Vpk or 60 Vdc present anelectric shock hazard. Disconnect all source voltagesbefore connecting or removing the source-to-mod ules I/Oconnector or wiring the connector block. All field wiringmust be rated for the highest voltage applied to any singlechannel.