Model 8425 is Ideal for Switching DB37 Device-Sharing Applications such as Torque Calibration Systems

Electro Standards Laboratories (ESL) announces the release of its new LineSelect® Model 8425 DB37 A/B/C Manual Rotary Switch, designed to simplify sharing one DB37 interface device among three DB37-connected instruments. The Model 8425 offers reliable, manual port switching with no external power required—perfect for environments requiring quick reconfiguration and minimal downtime.

Key Features & Specifications

• The Model 8425 supports one female DB37 “COMMON” port and three male DB37 ports labeled A, B and C.
• Via a front-panel rotary switch the user selects which of the three DB37 devices is connected to the COMMON port—making it ideal for device-sharing applications.
• Fully manual operation: No external power required.
• All pins on the DB37 interface are switched—so the entire DB37 signal path is selectable.
• Enclosed in a rugged, EMI/RFI-shielded black metal chassis, with rack-mount form factor: 19.0" W × 3.5" H × 10.67" D (48.3 × 8.9 × 27.2 cm), weighing approx. 5.4 lbs (2.5 kg).
• Ideal for one common device (e.g., display, controller) to be shared among up to three DB37-based instruments or networks.

Real-World Application & Customer Benefit

A calibration laboratory uses the Model 8425 to switch devices in a torque calibration system. Previously, the lab had three torque transducers and a single display. Each time the technician switched from one transducer to another, they had to unplug and re-plug cables—a process that introduced wear and tear, increased downtime, and raised the risk of damage to expensive transducer cabling.

By installing the Model 8425, the lab now simply rotates the front-panel switch to select the desired transducer connected to their display. The result?

• Reduced cable and connector wear, because the transducers are no longer repeatedly unplugged and plugged.
• Faster switching between transducers, increasing throughput and reducing labor time.
• Lower downtime and cost, since damaged cabling and connectors mean fewer interruptions and repair/replacement expenses.

Using the Model 8425 in a torque calibration system, provides a way to easily switch the display to the 3 torque transducers. Previously, technicians had to plug and unplug at every change, causing wear and tear on the equipment, as well as taking longer for the entire process. In using the Model 8425 to switch devices, the company reports that they have already seen a decrease in the damage of the transducer cabling saving them cost and downtime.

The Model 8425’s clear value in calibration lab environments and other device-sharing scenarios where reliability, simplicity, and minimal wear on cabling are priorities.

Availability & Ordering

The Model 8425 is listed in ESL’s catalog (Catalog No. 308425) and is available now. ESL welcomes quantity orders. Electro Standards Laboratories also offers  custom-length DB37 cable options or tailored configurations, contact ESL’s sales team.

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