Difference between revisions of "Microsoft KB Archive/108296"

From BetaArchive Wiki
m (Text replacement - "<" to "<")
m (Text replacement - ">" to ">")
 
Line 53: Line 53:
 
<pre class="fixed_text">  25-pin Connector      to    9-pin Connector
 
<pre class="fixed_text">  25-pin Connector      to    9-pin Connector
 
   ----------------------------------------------------
 
   ----------------------------------------------------
   2 (transmit data)      <-&gt;   2 (receive data)
+
   2 (transmit data)      <->   2 (receive data)
   3 (receive data)      <-&gt;   3 (transmit data)
+
   3 (receive data)      <->   3 (transmit data)
   4 (request to send)    <-&gt;   8 (clear to send)
+
   4 (request to send)    <->   8 (clear to send)
   5 (clear to send)      <-&gt;   7 (request to send)
+
   5 (clear to send)      <->   7 (request to send)
 
   6,8 (data send ready,
 
   6,8 (data send ready,
         carrier detect)  <-&gt;   4 (data terminal ready)
+
         carrier detect)  <->   4 (data terminal ready)
   7 (ground)            <-&gt;   5 (ground)
+
   7 (ground)            <->   5 (ground)
 
   20 (data terminal
 
   20 (data terminal
       ready)            <-&gt;   6,1 (data send ready,
+
       ready)            <->   6,1 (data send ready,
 
                                       carrier detect)
 
                                       carrier detect)
 
                 </pre>
 
                 </pre>

Latest revision as of 16:44, 20 July 2020

Knowledge Base


9-to-25 Pin RAS Null Modem Cabling

Article ID: 108296

Article Last Modified on 10/31/2006



APPLIES TO

  • Microsoft Windows NT Advanced Server 3.1
  • Microsoft Windows NT Workstation 3.1
  • Microsoft Windows NT Advanced Server 3.1
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition



This article was previously published under Q108296

SUMMARY

The Windows NT Remote Access Help file includes tables showing the correct wiring of a null modem cable for use with RAS. The two tables included show the correct wiring for a 9-pin null modem cable and a 25-pin null modem cable. The following table contains the proper null modem wiring that must be used when the cable connects a 9-pin serial port to a 25-pin serial port.

   25-pin Connector       to    9-pin Connector
   ----------------------------------------------------
   2 (transmit data)      <->   2 (receive data)
   3 (receive data)       <->   3 (transmit data)
   4 (request to send)    <->   8 (clear to send)
   5 (clear to send)      <->   7 (request to send)
   6,8 (data send ready,
        carrier detect)   <->   4 (data terminal ready)
   7 (ground)             <->   5 (ground)
   20 (data terminal
       ready)             <->   6,1 (data send ready,
                                      carrier detect)
                


Additional query words: prodnt nul

Keywords: kbnetwork KB108296