✅ Core Specifications (Official Simplified Version)

?? Interfaces

Device side: 68-pin male SCSI (VHDCI type, vertical installation)

Field side: 68-channel screw terminals (spacing 5.08 mm / 0.2 in), directly connectable to wires

Signals: Full 68-pin straight-through without conditioning, isolation, shielding, or protection

?? Electrical and Environmental

Maximum voltage: 30 Vrms / 42 Vpk / 60 VDC (safety upper limit)

Operating temperature: 0 ~ 70°C

Dimensions: 143.5 × 107.4 × 30.0 mm (5.65 × 4.23 × 1.18 in)

Weight: Approximately 153 g (5.4 oz)

Installation: Desktop (with metal support feet) / Panel mounting

Enclosure: PCB bare board, non-屏蔽 (cost optimization)

?? Positioning and Usage

One-sentence positioning： 68-pin CB-50LP - Low-cost， non-屏蔽， pure passive adapter for digital I/O and common analog signal field wiring of 68-pin NI DAQ.

Typical scenarios：

68-pin DAQ cards (E/M/S series， such as PCI-MIO-16E-1， PCI-6251， USB-6229)

Digital I/O， switch quantity， relays， encoder signals

Non-precise analog (0–5 V， 4–20 mA)， low noise environment

Laboratory / Teaching / Budget-sensitive projects

✅ Compatible Devices (68-pin NI DAQ)

E series： PCI-MIO-16E-1， PCI-6036E， PCI-6052E

M series： PCI-6220/6221/6225/6251/6259， USB-6229

S series： PCI-6115， PCI-6120

Counter： PCI-6601/6602/6608 (requires 68-pin cable)

❌ Incompatible with 50-pin cards (such as AT-MIO-16E-2， CB-50LP)

⚠️ Key differences from shielded SCB-68

CB-68LP： Non-屏蔽， economical， screw terminals； suitable for digital / common analog， budget priority， low noise environment

SCB-68： Fully metal shielding， with filtering / overvoltage protection， screw terminals； suitable for high precision， low level， strong interference environment