National Instruments 778734-01 Terminal Block 

Part Number 778734-01 is the identifying part number for the National Instruments TB-2631 Terminal Block. The module is used with the NI PXI-2530 Switch Module and it can configure the switch module as a 4 x 32 1-wire matrix or a 4 x 16 2-wire matrix. It has screw terminals to connect the signals and also features screw terminals for trigger input and trigger output. 

To use the 778734-01 with the switch module, the user requires the following additional components: a PXI chassis and a ⅛ inch flathead screwdriver. For safety reasons and to avoid damage to the device, the users should never touch the exposed pins of the connectors. Likewise, the users must ground themselves using a grounding strap or touching a grounded object. Similarly, they must store the device in the antistatic package when not in use. When brought into use, it is necessary to touch the antistatic package to a metal part of the chassis before taking the device out of the package. Finally, one must avoid installing a damaged terminal 
block on the switch module. 

Before connecting the 778734-01 to the front panel of the PXI-2530, the switch module should already be installed in a PXI chassis. Then, you must plug the terminal block on the front connector of the switch module and tighten the top and bottom screws on the back of the terminal to hold it properly in place. 

The 778734-01 meets the safety standards  IEC 61010-1, EN 61010-1, UL 3111-1, UL 61010B-1, and CAN/CSA C22.2 No. 1010.1 as an electrical equipment for measurement, control, and laboratory use. Likewise, in terms of electromagnetic compatibility, it complies with emission standards  EN 55011 Class A at 10 m and FCC Part 15A above 1 GHz, immunity standards EN 61326:1997 + A2:2001, Table 1, and EMC/EMI standards  CE, C-Tick, and FCC Part 15 (Class A). However, for EMC compliance, the device must operate with shielded cabling. Furthermore, it also meets the following European Directives:  73/23/EEC (Low-Voltage Directive (safety)) and  89/336/EEC (Electromagnetic Compatibility Directive (EMC)).