National Instruments TBX-50B Read Me First

READ ME FIRST
NI TBX-50B
50 Pin D-SUB Screw Terminal Block
This document describes the connector and screw terminal pinouts of the NI TBX-50B terminal
block.
The NI TBX-50B terminal block is DIN rail-mountable with screw terminals to connect the
signals to the switch and includes a 50 pin D-SUB male connector.
Specifications
Maximum voltage............................................. 150 V
Maximum current ............................................. 2.5 A
Caution
60 VDC), install the NI TBX-50B in a UL listed, suitably rated NEMA or
IP enclosure.
Refer to Figure 1 for the screw terminal pin locations on the NI TBX-50B.
1
2
1 50 Pin D-SUB Connector
2 D-SUB Shield Connections
For hazardous voltage applications or measurements (>42.4 V
Figure 1. NI TBX-50B Pin Reference
34 35 36 37 38 39 40 41
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
1 2 3 4 5 6 7
98.20 mm
(3.87 in.)
42 43 44 45 46 47 48 49 50
8 9 10 11 12 13 14 15
3
3 Din Rail Mounting Connector
69.00 mm
(2.72 in.)
16 17
/
pk