Remote Services Consoles REVEALED!

From: Chuck McManis <>
Date: Sat Jul 29 17:14:58 2000


I found DEC document EK-KCRSC-FS-001 "Remote Services Console: Field
Service Manual." Sometimes I'm sure God is a computer collector.

Connections: Connector
        Local Console Terminal A1
        CPU Conole Port A2

        Optional to Comm port B1
        Connection to modem B2

Now the way it works is it can use the modem from an existing dial-in line
which presumably the customer would already have. So where you would
normally have:

        Console >-------------> Computer

        Modem >-----------==> Comm port

You get
        Console >---+ R +------> console
                    | S |
        Modem >----+ C +------> comm port

This lets the modem be used to dial in the console or on the comm port when
not remotely diagnosing issues.
Buttons on the front control baud rate, the mapping is:

out out out 300
in out out 1200
out in out 2400
out out in 4800
in in in 9600

Baud T is the terminal and should match the console port setting

Baud M is the modem (1200 baud preferred :-)

The various modes:

        REMOTE - modem can dial into the console. Light blinks
                when no one is dialed in

        REMOTE USER - modem is connected to the comm port

        USER PORT - all operation is transparent console and modem
                connect "straight through" to the other connector

        LOCKOUT - modem can't be used to get to the system.

The dial in line uses the DDCMP protocol to insure data integrity. I'm not
sure what this means in terms of being able to dial it from a PC.

Received on Sat Jul 29 2000 - 17:14:58 BST

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