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Compact DB9 female to terminal block serial converter, matte housing

SMUGDESK

SMUGDESK RS232 to RS485 Serial Adapter Converter PortPowered HalfDuplex DB9 to Terminal Block Surge Protection

SKU CH-JE44-DGS7B

Port-powered RS232-to-RS485 half-duplex converter with surge protection, 300-115200 bps, 1200 m range, DB9 to terminal block, 32 nodes

  • Port-powered operation eliminates external adapters by drawing energy from the RS232 port
  • Built-in surge and TVS protection shields equipment from static shock and voltage spikes
  • Half-duplex conversion supports 300 to 115200 bps over distances up to 1200 meters
  • DB9 female with metal thumbscrews and terminal block enable secure multidrop wiring for up to 32 nodes
  • Compact housing fits industrial PLC, access control, security and sensor installations

Port-powered RS232 to RS485 converter

This adapter converts RS232 signals to RS485 for industrial PLC, security and access control systems. It draws power directly from the RS232 port so no external supply is needed. The half-duplex design supports multidrop networks of up to 32 nodes.

Built-in surge and TVS transient protection

Integrated suppression components defend the circuit against static shock and voltage spikes common in harsh electrical environments. This protection reduces the risk of data corruption and hardware damage during long cable runs. The unit maintains stable communication across the full 300 to 115200 bps range.

DB9 female with thumbscrews to terminal block

The RS232 side uses a DB9 female connector fitted with metal thumbscrews for a secure, locked connection to host equipment. The RS485 side uses a terminal block for fast, clear field wiring without soldering. The compact solid housing fits easily inside tight equipment cabinets.

Highlights

  • Port-powered operation eliminates external adapters by drawing energy from the RS232 port
  • Built-in surge and TVS protection shields equipment from static shock and voltage spikes
  • Half-duplex conversion supports 300 to 115200 bps over distances up to 1200 meters
  • DB9 female with metal thumbscrews and terminal block enable secure multidrop wiring for up to 32 nodes
  • Compact housing fits industrial PLC, access control, security and sensor installations

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the DB9 connector without losing the port-powered supply?

Tighten the metal thumbscrews on the DB9 female connector firmly to the host serial port so the RS232 signal lines deliver the power the converter needs; loose screws break the power path.

What components may need replacement after prolonged industrial use?

The built-in surge suppression and TVS transient voltage suppression components absorb electrostatic discharge and lightning surges; they degrade over time and should be inspected or the unit replaced after heavy transient events.

What is the maximum reliable distance at the highest baud rate?

The converter extends communication up to 1200 meters, but at 115200 bps the practical limit is shorter; lower baud rates achieve the full distance under proper wiring conditions.

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