5-2 | ni.comChapter 5 Cables and AccessoriesNI SH37F-37M CableThe NI SH37F-37M cable is a 37-pin shielded cable that provides direct connection to 37-pin651x devices. This cable uses 26 AWG wire that has a maximum current rating of 1.2 A per line.Some devices that can be physically connected to this cable have current ratings that exceed thislimitation. The NI SH37F-37M cable is not intended for use with hazardous voltages (greaterthan 60 V DC, 42.4 V peak, or 30 V RMS).Ensure that the DIO device does not exceed the maximum current rating by evenly distributingthe current among the VCC pins on the NI 6516 and NI 6518 devices, or among the GND pinson the NI 6517 and NI 6519 devices. For more information, refer to the Distributing Current(NI 6516/6518 Only) section and Distributing Current (NI 6517/6519 Only) section ofChapter 4, Power Connections.For quick connection to the I/O connector, use the National Instruments CB-37F terminal blockwith the NI SH37F-37M cable.Accessories for 100-Pin DevicesNational Instruments offers the following products for use with NI 6511/6512/6513/6514/6515devices.For more information about optional equipment available from National Instruments, refer to theNational Instruments catalog or visit the National Instruments Web site at ni.com.SH100-100-F CableThe SH100-100-F cable is a 100-pin shielded cable that provides direct connection to 100-pindevices. For quick connection to the I/O connector, use the National Instruments SCB-100terminal block with the SH100-100-F cable.R1005050 Ribbon CableThe 100-pin R1005050 ribbon cable splits into two 50-pin cables for direct connection to one ortwo 50-pin accessories. The 100-pin connector that joins the two cables plugs into the I/Oconnector on the DIO device.For quick connection to the I/O connector, use the CB-50 or CB-50LP terminal blocks with theR1005050 cable.Cable (Part Number) Accessory (Part Number)SH100-100-F shielded cable(185095)SCB-100 connector block (776990)R1005050 ribbon cable (182762) CB-50 connector block, DIN-rail mount (776164)CB-50LP connector block, panel mount (777101)