dB9 Serial Cable Male to Female RS232 9-Pin D-SUB Extension/Null Modem Cable Pinout for Industrial POS & Legacy Device Connection

• Customization: Available
• Application: DVD Player, Speaker, Computer, Monitor
• Color: Black, Gray, Customized
• Model NO.: DB9 male to female
• Type: Twisted Pair
• Species: VGA
• Connector: dB9
• Material Shape: Round Wire
• Wire Core Material: Bare Copper Wire
• Certification: RoHS, CE, ISO9001
• Brand: No
• Rated Voltage: 240V
• Lead Time: 2 Weeks
• One End: dB9 Male
• Another End: dB9 Female
• AWG: 26
• Transport Package: Carton
• Specification: PVC jacket
• Trademark: LANKA
• Origin: Shanghai, China
• HS Code: 8544422100
• Production Capacity: 500000/1 Month
• Package Size: 20.00cm * 22.00cm * 25.00cm
• Package Gross Weight: 0.300kg

Product Description

 

Product Description

DB9 Serial Cable Male to Female RS232 9-Pin D-Sub Extension/Null Modem Cable Pinout for Industrial POS & Legacy Device Connection

This professional-grade DB9 serial cable is engineered to provide a reliable, direct-wired connection for a vast array of equipment reliant on the robust RS-232 standard. Whether you need to extend a connection, link two Data Terminal Equipment (DTE) devices, or simply replace a worn cable, this versatile solution comes in two critical pinouts to meet your exact system requirements.
 

Parameter	Specification
Connector A	DB9 Male (9-pin D-Sub)
Connector B	DB9 Female (9-pin D-Sub)
Interface Standard	RS-232 (EIA/TIA-574)
Available Wiring	Straight-Through (1:1) or Null Modem (Crossover)
Cable Type	Multi-conductor, shielded
Shielding	Foil & Braid Shield for EMI/RFI protection
Jacket	PVC, flexible
Standard Length	1.8m / 6ft (Other lengths available)

 

 

Products Features

 

OEM male to female db9 to db9 cable

Custom DB9 Male to Female RS232 Extension Cables D-sub 9Pin RS232 Cross Serial Cable 0.5M 1M 1.5M 2M 3M 5M 10M 20M

All 9 connector pins of Db9 male to 9 female are directly connected. (Pin) Fully molded connector with thumb screw provides you with quick and simple connection every time. It can be easily connected and transmitted from USB interface to RS232, printer, keyboard/mouse and other interfaces. Allows you to extend the range of printer or PC-to-PC connections and eliminate cable length restrictions.

• Durable Connectors: Features standard DB9 male and DB9 female connectors with nickel-plated shells for corrosion resistance and reliable mating.

• Clear Pinout Identification: Each configuration is clearly marked (e.g., "Straight-Through" or "Null Modem") to prevent application errors.

• Robust Cable & Strain Relief: Utilizes a shielded cable with multiple conductors to protect signal integrity from interference. Molded strain reliefs at each connector enhance durability and prevent wire breakage from flexing.

• Wide Compatibility: Adheres to EIA/TIA-574 standards, ensuring compatibility with any device equipped with a standard 9-pin RS-232 serial (COM) port.

Straight-Through / Extension Cable (1:1 Pinout):
Purpose: To extend the distance of a serial connection or connect a DTE device (like a computer) to a DCE device (like a modem).
How it works: Each pin (1 to 9) is connected straight through from the male to the female connector (Pin 1 to Pin 1, Pin 2 to Pin 2, etc.).
Typical Use: Connecting a computer's COM port to serial devices like GPS units, barcode scanners, serial printers, or older scientific instruments.
 

 

Null Modem Cable (Crossover Pinout):
Purpose: To directly connect two DTE devices (e.g., computer to computer, computer to router console, computer to PLC) without needing a modem.
How it works: Critical transmit (TxD) and receive (RxD) lines are crossed (Pin 2 to Pin 3, Pin 3 to Pin 2), and handshaking lines are appropriately linked to allow communication.
Typical Use: PLC programming, configuring network equipment (Cisco, HP, etc.) via console port, transferring data between PCs, or connecting to industrial control systems.
 

Application

 

• Industrial Automation & Control: Connecting to PLCs  CNC machines, servo drives, and HMI panels for programming and monitoring.

• Network Infrastructure: Console port configuration and management of routers, switches, firewalls, and other network gear from vendors like Cisco, Juniper, HP.

• Point-of-Sale (POS) & Retail: Interfacing with legacy receipt printers, cash drawers, scales, and mag stripe readers.

• Legacy System Support: Maintaining connectivity for older laboratory instruments, medical devices, avionics test equipment, and telecommunications hardware.

• Embedded Systems Development: Debugging and communication with microcontrollers and single-board computers.

 

According to customer's choices.Sample usually sent by express. Bulk goods can be sent by air, by sea.
Please contact with us for shipping cost.,we have discount with DHL,TNT,UPS,FEDEX and cooperated with shipping agent If you don't have the express account.
Lead time:Normally,10-20 days

Lanka industrial Automation (Shanghai) Co.ltd is firslty specialized in developing and sale of drag chain cable,spiral cable,robot cable,servo motor cable,civil engineering cable and so on in China, cables have below features: high-fleixible,abrasion resistance,oil resistance,bending resistance,corrosion resistance. Our brand Hxin cable widely used in Mechanized automatic industry,medical,metallurgy,port,mine,salt lake system and so on. We provide customer hundreds of cables and design a bespoke custom made cable solution.we are professional manufacturer,provide fast delivery and high-quality cables with competitive price.

Our cable is produced according to VDE,EN,IEC standard and ISO9001-2008 Quality Management system,most of our cables have CE,ROHS certificates.our products have been sold to Europe,Asia and Africa Market.
 

Lanka cable is committed to serving in various fields of mechanized automatic industry under the management concept of "innavative, pragmatic,precise and integrity" and with the Spirit of value "Pioneering and innovative,quality to win trust" .at the same time,we improve product technology,optimize marketing services,seize market opportunities,lead Hxin cable to continue and healthy development.
 

Products:

spiral cable,TPU/PUR cable, flexibile drag chain cable, oil resistant and abrasion resistant cable,special rotor cable,elevator cable,photovoltaic cable, low smoke zero halogen cable,crane trolly cable,drum equipment cable,wind turbine cable,automotive circuit anti explosion anti aging cable,flame-retardant cable,fire resistant cable,servo machine cable,power cable,CCC,VDE,UL,CE certificate cable and related 20 series 1000kinds cable.

Sample

Give your requirements to us,we recommend the suitable cables for yousamples is free if we have stock,if not,we could customize it then charging some cost for sample.The samples'fee will return to you when we got your order more than 1000USD.

Usually,samples will provide within 3 days.if you need to customize then we need 1-2 weeks.

Payment
We accept bank transfer,Paypal and West union.,if in some other way please check with us.

Warranty
If it is our quality problem then we will afford the freight for you to replce the cables.

Advantages
Production and testing equipment more than 100 sets,
R&D engineers: 12
management teams all have more thn ten years; work experience in cable industry.