National Instruments CB-68LP 68-Pin Screw Terminal Block 183030B-01

Sixty-Eight DAQ Lines, Broken Out to Screws You Can Reach

Condition

Sold used, and the board in these photos is the one you get. The green solder mask is clean and the white silkscreen is crisp: the National Instruments logo, the CB-68LP legend, the CE mark and the 1998 copyright line all read clearly under the camera. The 68-pin high density connector marked J69 shows gold contacts with no bent pins visible in the close-up. All five terminal strips are present and the silkscreen numbering accounts for all 68 positions, with the slotted terminal screws looking bright. Four brass hex standoffs are installed at the corners, each with a brass hex fitting seated on the top face of the board and a steel nut at the far bottom end of the standoff, and one of them carries a small bright scuff on a flat. A white barcode label reading 110BC1C sits beside the National Instruments logo, and the white NI label next to the connector reads 183030B-01. We have not put a meter on it, so continuity from the connector through to the screw terminals is not verified here.

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Product Overview

The CB-68LP is the low cost, open board screw terminal accessory National Instruments built for 68-pin data acquisition devices, and this one carries the 1998 copyright and CE mark right in the silkscreen. It is a passive breakout and nothing more: a 68-pin high density connector at one edge, marked J69 on the board, fanning out through the traces to 68 numbered screw terminals arranged in five strips across the face. Every terminal is silkscreened with its pin number, so pin 68 lands on the screw labeled 68 and nothing has to be traced by hand with a meter. There is no signal conditioning, no isolation, no amplification and no active silicon anywhere on it - the whole job is turning a dense connector into wire you can land with a small flat blade screwdriver. The board is marked with both of its identifying numbers, the CB-68LP model in the silkscreen and the National Instruments part label 183030B-01 beside the connector, and both are shown in the photos. This unit arrives with four brass hex standoffs installed at the corners, a brass hex fitting on the top face and a steel nut at the bottom end of each, which is what lets it sit raised and flat on a bench instead of resting on its solder side. No cable, card or DAQ device is included. Board dimensions are not confirmed here - verify against the National Instruments datasheet before designing an enclosure or panel fit.

Key Features

• 68 screw terminal positions across five green terminal strips, each position numbered in the silkscreen
• 68-pin high density connector at the board edge, marked J69
• Board silkscreen reads National Instruments, CB-68LP, CE, copyright 1998
• White National Instruments label 183030B-01 next to the connector
• Four brass hex standoffs installed at the corners, brass hex fitting on the top face and a steel nut at the bottom end of each
• Passive, open board breakout - no signal conditioning, isolation, amplification or active components
• Slotted terminal screws throughout, workable with a small flat blade screwdriver
• Board dimensions and wire gauge range not confirmed - verify against the datasheet before use

Applications

• A test engineer who needs a working DAQ card's 68 lines brought out to field wiring on the bench, without building a custom harness first
• A lab technician wiring up a temporary sensor hookup where signal leads land on numbered screws and can be moved in seconds between runs
• A university lab replacing a breakout that walked off, so a good National Instruments card can go back into a student data acquisition station
• A machine builder who wants a labeled landing point for limit switches and analog inputs during commissioning, before anything goes into the permanent panel

Frequently Asked Questions

Is 183030B-01 the same thing as CB-68LP?

They are two marks on the same board. CB-68LP is the model, silkscreened across the face next to the copyright line. 183030B-01 is the National Instruments part number on the small white label beside the 68-pin connector. Both are visible in the photos, so you can match against whichever number your paperwork or purchasing system uses.

What cable do I need to connect it to my DAQ device?

The CB-68LP mates to a standard National Instruments 68-pin cable, and no cable, card or device is included in this sale. Which cable is the right one depends on your specific DAQ model and whether you want shielded or ribbon. Not confirmed here - verify the cable National Instruments specifies for your device before ordering.

Does this board condition or isolate the signals?

No. It is a passive breakout with no amplifiers, no isolation barrier, no filtering and no active components on it. The connector pins go to the screw terminals and that is the entire function. It is also an open, unenclosed board with no shield, which is exactly what makes it cheap and exactly why low level analog work is usually better served by a shielded block.

This one is used - what am I actually taking on?

You are getting the exact board photographed here, sold used, clean and in good condition. Our inspection was visual, and it looks clean: legible markings, bright terminal screws, gold connector contacts with no bent pins visible, five complete terminal strips, and four standoffs in place with one small bright scuff on a brass flat. What we have not done is meter it, so continuity from the 68-pin connector through to each screw terminal is unverified and the photos are the spec for everything else. On a passive board with no firmware, no calibration and nothing to drift, that is a short list of unknowns, but it is an honest one, and if you need a guaranteed tested unit you should buy new. This board clears our free shipping line on its own, and orders leave the Idaho warehouse the same or next business day.

Copyright 1998 sits right there in the silkscreen, and the layout has not needed to change since: sixty-eight lines, five strips, one screwdriver. If you have a good DAQ card and a bundle of field wires with nowhere honest to land, this board has been waiting on a shelf for exactly that job.