DB9 Adapter Signals Terminal Module RS232 RS485 Serial To Terminal 9-Pin 9-Hole Connector

DB9 to Screw Terminal Adapter (Model: DB9-TB-01)

Key Specifications:

● Interface Type: Converts DB9 Male/Female to screw terminals

● Dimensions: 35mm × 33mm

● Tool Required: Small flat-head screwdriver for terminal screws

Pin Definitions:

DB9 Female (For PC COM Port Connection)

Pin 2 (TXD): Data Out

Pin 3 (RXD): Data In

Pin 5 (GND): Ground

Pins 1,4,6,7,8,9: Internally connected (no wiring needed)

DB9 Male (For Device Connection)

Pin 2 (RXD): Data In

Pin 3 (TXD): Data Out

Pin 5 (GND): Ground

Pins 1,4,6,7,8,9: Internally connected (no wiring needed)

Important Notes:

Ensure proper TXD/RXD crossover when connecting devices

Tighten terminal screws securely (recommended torque: 0.5Nm max)

Directly plugs into standard COM ports (Female) or devices (Male)

Typical Applications:

Industrial RS-232 device debugging

Secure serial communication wiring