BLD FLASH 9515
SOURCE MATERIAL DATED: 4/95
¦



                  PSF/6000: S/370 CHANNEL EMULATOR/A ADAPTER

 Attachment of more than one printer per the S/370 Channel Emulator/A  adapter
 card from PSF/6000 is NOT RECOMMENDED.  Contrary to the sales manual descrip-
 tion which indicates up to four printers per card may be  attached, only  ONE
 printer per S/370  Channel  Emulator/A  adapter  card  will  function  satis-
 factorily.


 In-lab testing and customer experience has  exposed  an  architectural    re-
 striction  which  renders  multiple printers per card impractical. Other fac-
 tors  such as   card  design,  card availability,  performance, device driver
 design, RISC hardware directions, and emergence of TCP/IP  attachments  indi-
 cate this solution is non-strategic.


 While the 370  Channel is the premier attachment for mainframe systems, it is
 not true in the  RISC/AIX  environment. TCP/IP is the natural, preferred, and
 recommended attachment in AIX systems.   Newer  AFCCU  printers  have  TCP/IP
 attachment capabilities.


 This  action  affects  the  following printers which can only be attached via
 channel to PSF/6000. These printers  may   still be attached  one  per  S/370
 Channel Emulator/A adapter card.

   o      IBM 3825
   o      IBM 3827
   o      IBM 3828
   o      IBM 3829
   o      IBM 3835
   o      IBM 3900-1

$EOM