• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Model Number: LBT-D014
  • Place of Origin: Guangdong, China (Mainland)
  • Use: Computer

Packaging & Delivery

Packaging Details a cable in a poly bag, 300-500pcs in a carton, carton size: 46cm*30cm*30cm
Delivery Time 7-15 workdays after payment is received

Specifications

Cable: DB9/RS232 serial cable
Place of Origin: Guangdong, China (Mainland)
Brand Name: LBT

 

Specifications

 

Serial RS232 Null Modem DB9 Cable
DB9 DB25
Male or Female
Crosslinked Null Modem Cable
Custom Length OEM

 

Null Modem DB9 Cable

 

The purpose of a null-modem cable is to permit two RS-232 DTE devices to communicate with each other without modems or other communication devices (i.e., DCE's) between them.

 

To achieve this, the most obvious connection is that the TxD signal of one device must be connected to the RxD input of the other device (and vice versa).

 

Many DTE devices use other RS-232 pins for flow control. One of the most common schemes is for the DTE (the PC) to assert the RTS signal if it is ready to send data, and DCE (the modem) to assert CTS when it is able to receive data. By connecting the RTS pin of one device to the CTS pin of the other device, we can simulate this handshake.

 

Also, it is common convention for many DTE devices to assert the DTR signal when they are powered on, and for many DCE devices to assert the DSR signal when they are powered on, and to assert the CD signal when they are connected. By connecting the DTR signal of one DTE to both the CD and DSR inputs of the other DTE (and vice versa), we are able to trick each DTE into thinking that it is connected to a DCE that is powered up and online. As a general rule, the Ring Indicate (RI) signal is not passed through a null-modem connection.

 

Specifications

 

Serial RS232 Null Modem DB9 Cable
DB9 DB25
Male or Female
Crosslinked Null Modem Cable
Custom Length OEM

 

 

Null modem DSUB9 to DSUB9 cable

 D-Sub 1D-Sub 2 
Receive Data23Transmit Data
Transmit Data32Receive Data
Data Terminal Ready46+1Data Set Ready + Carrier Detect
System Ground55System Ground
Data Set Ready + Carrier Detect6+14Data Terminal Ready
Request to Send78Clear to Send
Clear to Send87Request to Send


 

Null modem DSUB9 to DSUB25 cable

 D-Sub 9D-Sub 25 
Receive Data22Transmit Data
Transmit Data33Receive Data
Data Terminal Ready46+8Data Set Ready + Carrier Detect
System Ground57System Ground
Data Set Ready + Carrier Detect6+120Data Terminal Ready
Request to Send75Clear to Send
Clear to Send84Request to Send


 

Null modem DSUB25 to DSUB25 cable

 D-Sub25 1D-Sub25 2 
Receive Data32Transmit Data
Transmit Data23Receive Data
Data Terminal Ready206+8Data Set Ready + Carrier Detect
System Ground77System Ground
Data Set Ready + Carrier Detect6+820Data Terminal Ready
Request to Send45Clear to Send
Clear to Send54Request to Send

 

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview

Transactions

Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland)
Transaction Level:
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $31,000
Learn More