NI SH200LFH-4xDB50F-S Cable (1 Meter)

The NI SH200LFH-4xDB50F-S is a 1 meter interconnect cable that bridges National Instruments switch modules to external signal conditioning and terminal block assemblies. It terminates in an LFH200 200-pin male connector on the device end and four 50-pin female D-SUB connectors on the application end, enabling signal distribution across multiple breakout points. The cable implements twisted pair topology for enhanced signal integrity on designated channels, though channels CH95, CH96, and CH97 operate without twisted pair configuration and exhibit lower RF performance in this specific arrangement.

– Technical Specifications

• Connector Type (Device End): LFH200 (Low Force Helix) 200-pin male connector
• Connector Type (Application End): Four 50-pin female D-SUB (DB50F) connectors
• Length: 1 meter
• Maximum Voltage Rating: 60 VDC
• Signal Configuration: Twisted pair topology for signal and common connections on compatible modules; channels CH95, CH96, and CH97 lack twisted pair construction

– Key Features

• Direct interface with NI PXI-2575 and SCXI-1175 switch modules
• Four independent 50-pin D-SUB breakout points for multi-channel signal access
• Twisted pair construction on primary channels minimizes crosstalk and EMI
• Low Force Helix connector design ensures secure, repeatable mating with NI switch hardware

– Typical Applications

• Data acquisition system signal routing and switching
• Multi-channel signal conditioning and measurement
• Connection to 50-pin D-SUB terminal blocks for external equipment integration
• Laboratory and industrial test environments requiring standardized connector breakout

– Compatibility & Integration

This cable configuration is recommended for NI PXI-2575 and SCXI-1175 modules. General LFH200 Series compatibility extends to PXI-2569, PXI-2570, PXI-2571, SCXI-1169, and related units. The four D-SUB connectors interface directly with NI TBX-50 and TBX-50B 50-pin terminal blocks, streamlining connections to external instrumentation and measurement systems.