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Green circuit board with DB37 connectors and screw terminals mounted on a DIN rail clip

BONAEVER

BONAEVER DB37 Male/Female D-SUB Din Rail Mount Interface Module

SKU CH-M2MQ-DJYY2

A DIN-rail mountable DB37 breakout board with male and female RS232 connectors and 5.08 mm screw terminals for 28–12 AWG wiring

  • Case TypeProtection Case
  • DB37 male and female connectors enable direct RS232 serial switching without rewiring
  • 08 mm pitch screw terminals accept 28 to 12 AWG wire for secure field connections
  • DIN rail mount fits 35, 32 and 15 mm rails and converts to panel mount
  • FR4 dual-layer PCB measures 72 by 116 mm inside an 85 by 120 mm case
  • Terminal block rated 60 V and 1 A with M2 steel screws torqued to 1.7 Lb-In

DB37 DIN-rail interface module

The BONAEVER DB37 male/female D-SUB module mounts on standard DIN rails and provides screw-terminal access to all 37 RS232 signal lines. It is aimed at control-cabinet builders and integrators who need a compact, labelled breakout for serial field wiring.

37-pin terminal block with 5.08 mm pitch

The screw terminals accept 28-12 AWG wire at up to 1 A and 60 V, giving enough headroom for typical instrumentation and PLC signals. The FR-4 dual-layer PCB measures 72 x 116 mm inside an 85 x 120 mm housing that fits 35 mm, 32 mm or 15 mm DIN C45 rails.

Replaces loose DB37 cables and custom patch panels

The module eliminates point-to-point soldering and lets technicians swap devices without disturbing field wiring. The jump is worth it when a cabinet requires clear, numbered connections and a rail-mount footprint that can also be panel-mounted by removing the DIN clip.

Highlights

  • DB37 male and female connectors enable direct RS232 serial switching without rewiring
  • 08 mm pitch screw terminals accept 28 to 12 AWG wire for secure field connections
  • DIN rail mount fits 35, 32 and 15 mm rails and converts to panel mount
  • FR4 dual-layer PCB measures 72 by 116 mm inside an 85 by 120 mm case
  • Terminal block rated 60 V and 1 A with M2 steel screws torqued to 1.7 Lb-In

Specifications

Case TypeProtection Case

Questions about this item

Will the DB37 male and female connectors on this module fit my existing RS232 serial cables without adapters?

Yes, the module provides standard DB37 male and female D-SUB connectors that mate directly with RS232 serial cables using the same 37-pin interface.

How can I verify the terminal block connections are live after wiring the screw terminals?

Each signal line is clearly numbered on the PCB, so you can probe the corresponding terminal block position with a multimeter to confirm continuity and correct pin mapping.

Does the package include the DIN rail clips or must I buy a 35mm rail separately?

The module is designed to mount on DIN C45 rails of 35, 32 or 15mm width; the rail itself is not included and must be sourced separately.

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