  problems with serial line connection? (modems) 
 The Question is:
 
Point to Point Modem Connection
 
I am trying to connect a terminal to a DECserver 90 or 900 using RAD Async
Multipoint Short Range Modems.  The setup is as follows
 
TERMINAL--modem---line------modem--V.24--Server
 
 
  I am running into trouble making a cable that will work.  The connection
on the back of the modem is an RJ45 (V.24).
 
The card has a DCE/DTE switch.  The following pinouts are displayed in the
manual.
 
DCE Position
 
TD---XMT pair
RD---RCV pair
RTS-|
    |
CTS-|
DSR---+V
DCD---+V
DTR
 
DTE Position
 
TD---RCV pair
RD---XMT pair
RTS---+V
CTS
DSR
DCD
DTR---+V
 
as well the RJ45 connection DTE(V.24) pinouts are as follows:
 
1.   Chassis Ground
2.   RTS
3.   RXD
4.   DCD
5.   TXD
6.   DTR
7.   SIG. GND
8.   CTS
 
 
What pin connections have to be made to communicate with a DECserver?
 
 The Answer is:
 
  Please acquire a serial line breakout box, and use it to see exactly what
  is going on here.
 
  Various pinouts are included in the OpenVMS FAQ and elsewhere, including
  pointers and discussions here.
