Handshaking problems Sun 3/50 <--> Micom PAD

[Frank Fischer]

I want to connect a Sun 3/50 running SunOS 4.0.3 to a Micom PAD for dial
in and dial out on the same serial line.

The kernel is configured for hardware-handshake and modem-control.

There seems to be no configuration to match the handshaking between the
PAD and the Sun.

The only reasonable configuration for the PAD seems to be:

    -extended EIA controls  (call option)
    -dedicated  (channel option)

... but there is still a problem: the PAD raises DTR and RTS (would be ok)
    but also DCD without receiving a call.
    Result: -the getty thinks someone wants to log in ( DCD active)
	     and blocks the port.
	    -the PAD thinks someone wants to call out and doesn't accept
	     an incoming call.

Any suggestions to solve that problem ?

Thanks in advance.

---

  Frank Fischer

ISA GmbH  -  Informationssysteme fuer computerintegrierte Automatisierung
Azenbergstr. 35, D-7000 Stuttgart 1, West-Germany, Phone: +49-711/22769-0
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