JB04T — 4-Channel BNC Junction Box
The smallest box in the family — 4 BNC channels in a single row, screw-fixed cover.
SKU: JB04T
- ●4 channels, single row — the whole panel is readable at a glance
- ●Screw-fixed cover, no hinge — standard T-series build
- ●Rubber bench feet
- ●BNC female-to-female panel-mount, one per channel
- ●±0.1 dB flatness, 10 Hz–20 kHz
- ●1-year warranty
| Channels | 4 |
| Panel layout | 1 row × 4 |
| Form factor | T-series bench, screw-fixed cover |
| Connector | BNC, female-to-female, panel-mount, ×4 |
| Cover | Screw-fixed flat top panel, ~8 screws (corners + edge-midpoints), no hinge |
| Mounting | Rubber bench feet |
| Cable glands | Not visible in this model's source image (side wall not shown) — sized to the cable bundle, confirmed at order engineering |
| Footprint | Compact desktop enclosure, single-hand liftable (indicative — not a measured dimension) |
| Flatness | ±0.1 dB, 10 Hz – 20 kHz |
| Contact resistance | ≤ 5 mΩ |
| Insulation resistance | ≥ 1000 MΩ |
| Warranty | 12 months |
The JB04T panel carries channels 01–04 in a single row, with the TIERA logo top-left and the model code and serial number (S/N JB04T26001) top-right — the same legend convention used across the whole family. The cover is screw-fixed on a flat top panel, held by roughly 8 screws at the corners and edge-midpoints, with no hinge and no lock.
At 4 channels, a single flat row is enough — there is no case for zoning at this size, and none is offered. The box shares the family’s electrical specification unchanged: what varies model to model in this family is channel count and panel layout, not measurement performance.
Electrical specification
| Parameter | Value |
|---|---|
| Flatness | ±0.1 dB, 10 Hz – 20 kHz |
| Contact resistance | ≤ 5 mΩ |
| Insulation resistance | ≥ 1000 MΩ |
| Connector | BNC, female-to-female, panel-mount bulkhead |
This is a passive assembly with no active device in the signal path. THD and noise-floor figures (≤ 0.001% / ≤ −120 dBV, reported on request) are null-result measurements confirming the assembly adds no detectable distortion or noise above a calibrated analyser’s own floor — not a spec the box “achieves” the way an active instrument would.
Typical applications
- Small fixed-point accelerometer sets on a test fixture
- A reference or trigger channel alongside a larger sensor array
- Bench setups where 4 channels is the whole requirement
See current pricing and configuration options on the TIERA store.
Pairs with:
- Junction Box family — full line-up, configuration matrix and electrical spec
- JB08T — next channel count up
- Sensors & Accessories — accelerometers and cables feeding into the panel
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JB08T — 8-Channel BNC Junction Box 8 BNC channels, 2 rows × 4, screw-fixed cover — a compact bench routing panel. -
JB12T — 12-Channel BNC Junction Box 12 BNC channels, 2 rows × 6, screw-fixed cover, two cable glands — the family's most fully photographed model. -
JB16T — 16-Channel BNC Junction Box 16 BNC channels, 2 rows × 8, screw-fixed cover — matched to a 16-channel DAQ. -
JB24T — 24-Channel BNC Junction Box 24 BNC channels, 3 rows × 8, screw-fixed cover — the largest standard bench layout in the family. -
JB48T — 48-Channel BNC Junction Box 48 BNC channels, 4 rows × 12, screw-fixed as standard — chassis build available. -
JB60T — 60-Channel BNC Junction Box 60 BNC channels — a chassis build is also available above 32 channels. - JB64T — 64-Channel BNC Junction Box, Tender Configuration 64 BNC channels, 4 zones × 16, hinged lockable lid, castor stand — built to a customer tender specification.
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JB80T — 80-Channel BNC Junction Box 80 BNC channels, 5 rows × 16, screw-fixed as standard — the largest model in the family.
Want to buy or trial it?
Email Varghese (sales) or book a 20-minute demo call.