MAI COMPANY CONFIDENTIAL FIELD INFORMATION BULLETIN
SERVICE GROUP(S): MICRO,MINI,LARGE     MFG: CENTRAL DATA

 NACS  TYPE(S): N128                   MFG. MODEL(S): SCSI

CATEGORY: NETWORK DEVICES              DESC: TERMINAL SERVER

                   *** TABLE OF CONTENTS AS OF 07/03/94 ***                     

FIB 00001.General Information.........................................06/10/93
FIB 00002.Ports Hang..................................................06/10/93
FIB 00003.SCSI TERM CONTROLLER serial cable pin-out...................03/24/94
FIB 00004.Proper.setup of scsi terminal server ports..................03/29/94


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FIB 00001                  MAI COMPANY CONFIDENTIAL                   06/10/93


                          *** General Information ***
A Central Data terminal server (ST-2001) connects to a host scsi bus and uses
one scsi address. It services from 1 to 7 terminal concentrators (ST-2008+) with
each concentrator providing 8 serial ports and one Centronics parallel port.

The ST-2008+ concentrators are daisy chained using twisted pair cable, and can
be widely seperated with total cable length of up to 1500'.

Manuals are supplied with the equipment and should be on site.

Contact the National Support Center for support, if advised by the NSC or if
NSC support is not available you may contact Central Data at: 1-800-482-0315

Training is included in the SUN class available through the NSC.


ORIGINATOR: Norm Jones


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FIB 00002                  MAI COMPANY CONFIDENTIAL                   06/10/93

                               *** Ports Hang ***

A problem has been seen where all the ports on the scsiTERM freeze.  The system
continues to run.  At this point the only thing that can be done is to shutdown
the system.  This can be done at the console using the normal system down
command.  Next power off the system, scsiTERM server and concentrators.  Power
up the scsiTERM server, concentrators and system.   This should bring back the
scsiTERM.

Central Data has seen the problem and is presently working the issue.  They
hope to have a fix (new driver) shortly.


ORIGINATOR: Wally Moore


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FIB 00003                  MAI COMPANY CONFIDENTIAL                   03/24/94

               *** SCSI TERM CONTROLLER serial cable pin-out ***

SYMPTOM/TEXT: The serial cable pin-out in the SCSI term controller h/w guide is
incorrect.

FIX: Correct pin-out for RS-232 devices on SCSI term controller serial ports.

     RJ-45               RS-232         If you use RJ-45/DB25M adapters
                                        along with straight through RJ-45    
       1 ----------------- 5            cables, you can do all the wiring
                       |                in the adapter.  Listed below is the
       2 --|           |-- 6            color code for most adapter mfgers.
           |           |                                                     
       3 --|           |-- 8                    1 - BLUE
           |                                    2 - ORANGE
       7 --|                                    3 - BLACK
                                                4 - RED
       4 ----------------- 2                    5 - GREEN
                                                6 - YELLOW
       5 ----------------- 3                    7 - BROWN
                                                8 - WHITE OR GRAY
       6 ----------------- 7
       8 ----------------- 20

ORIGINATOR: Jim Dobson


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FIB 00004                  MAI COMPANY CONFIDENTIAL                   03/29/94

               *** Proper setup of scsi terminal server ports ***


Subject : Central Data scsiTerm Servers              Author : Wally Moore
Type    : Informational
Purpose : To inform the field of the proper way to set up terminals using
          a Central Data scsiTerm Servers.


A problem has been found using the sacadm and pmadm commands to handle the
terminal port logins.  The problem is some ports will hang after a log off.

To correct the problem remove the ports from sacadm and pmadm and place the  
ttymon entries into the /etc/inittab file.  It does not do any good to disable
the ports with the pmadm command, they must be removed.

The command used in the /etc/inittab file for each port is as follows:

c500:234:respawn:/usr/lib/saf/ttymon -g -h -p "`uname -n` login: " -T 4314 -d
/dev/sts/ttyc500 -l 9600

In the above the line will wrap, this is one line not two lines.
In the above line c500 is a label, -T 4314 is the terminal type, -d is the
device.


ORIGINATOR: Wally Moore


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