USB ADAPTER
top usb serial adapter products

6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige

6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige usb serial adapter serial to usb adapter

6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige

Item Works with Windows ME Item Works with Windows 2000 Item Works with Windows XP Item Works with Windows NT 4.0 Item Works with MAC Operating System OS 9.1 or Higher Item Works with MAC Operating System OS 9.1 or Higher

Mfg CABLEMAX
Part CAB-18990
Warranty One Year
In Stock Yes
Ship Weight 1 lbs.
Color Beige
Size 6ft
Platform Mac/Windows
Bar Code CAB-18990
Quantity Discount 48 + $2.98 96 + $2.56
Our Price $3.98
Qty:

  • DB9 female to DB9 female, 7 conductors, shielded, molded 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 TD signal of one device must be connected to the RD input of the other device (and vice versa). Also, however, many DTE devices use other RS-232 pins for out-of-band (i.e.,hardware) flow control. One of the most common schemes is for the DTE (the PC) to assert the RTS signal if it is ready to receive data (yes, it DOES sound backwards, but thats how it works), and for the DCE (the modem) to assert CTS when it is able to accept data. By connecting the RTS pin of one DTE to the CTS pin of the other DTE, 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. Receive Data 2 3 Transmit Data Transmit Data 3 2 Receive Data Data Terminal Ready 4 6+1 Data Set Ready + Carrier Detect System Ground 5 5 System Ground Data Set Ready + Carrier Detect 6+1 4 Data Terminal Ready Request to Send 7 8 Clear to Send Clear to Send 8 7 Request to Send

  • Important Technical Information:
    DB9 female to female null modem cables. A null modem cable allows two computers to communicate without a modem. It allows you to connect your PC to another nearby PC or serial device using its modem protocol. The transmit and receive signals are crossed.
    Qty: | |
    Similar Items:

     360319...6ft. DB25 Female to DB25 Female Beige Null Modem Cable..$2.95



    NEED HELP Selecting Proper USb to Serial Adapter?

    CALL US TODAY

    1-727-209-1300

    USE OUR QUICK REPLY SUPPORT FORM
     
     
    USB ADAPTER SITE | USB Serial ADAPTER COMPANY INFORMATION | CONTACT USB Serial ADAPTER | SEARCH USB Serial ADAPTER SITE FOR ANY AND ALL USB ADAPTER NEEDS | USB SerialGear ADAPTER SECURITY INFORMATION | USB SerialGear ADAPTER PRIVACY INFORMATION | USB ADAPTER TERMS OF SALE INFORMATION | USB ADAPTER PRE SALE INFORMATION

    6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige

    USB Serial Adapter copyright ©1997-2021 SerialGear.com
    6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige 6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige 6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige SEARCH USB Serial ADAPTER SITE FOR ALL USB ADAPTERS USB ADAPTER SECURITY 6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige 6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige VIEW SHOPPING CART 6ft. DB-9 Female to DB-9 Female Null Modem Cable Beige