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                                                        The Florida SunFlash
   	    
 	   SunNet High-Speed Serial Interface/SBus (HSI/S)

SunFLASH Vol 35 #10					       November 1991 
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	- SBus single-slot synchronous serial communications board
	
	- Supports SunNet Internetwork Router, X.25, SNA 3270, and SNA
	  Peer-to-Peer software
	
	- Supports T1 (1.544 Mbps) and CEPT (2.048 Mbps) speed lines
	
	- Four RS-449 ports, mounted on separate panel
	
	- Diagnostic accessories and software included
	
Introduction

The High-Speed Serial Interface/SBus (HSI/S) from Sun Technology
Enterprises, Inc., is a four-port serial communications SBus card and
associated patch panel, cable, driver software, and documentation.
With a maximum cummulative throughput of 3.5 Mbps, HSI/S can
simultaneously support STE's SunNet Internetwork Router and X.25 as
well as SunLink SNA 3270 and SNA Peer-to-Peer.  HSI/S will be
available first on Sun Microsystems Computer Corporation systems.
 
When used with a modem, the HSI/S communicates over dial-up or leased
voice-grade or conditioned analog telephone lines. To achieve higher
speeds, you can use 56 kbps, 1.544 Mbps (T1), or 2.048 Mbps (CEPT)
leased digital lines with appropriate CSU/DSU equipment.  Modems and
CSU/DSUs are widely available from various third-party vendors.

The HSI/S product replaces the MCP and HSI/VME products for SBus
systems. The HSI/S has better price/performance and more functionality
than the MCP and HSI/VME solutions.


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FEATURES					BENEFITS
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o Up to 2.048 Mbps per port, 4 ports		Low cost, high speed  
  total						communications board
o Maximum cumulative throughput of 3.5 Mbps

o Supports Internetwork Router, X.25, SNA	Compatible with existing
  3270 and SNA Peer-to-Peer			Sun networking software

o Predicted 30,000 hours MTBF			High reliability

o Software on CDROM, comes with diagnostics	Easy to use
  software and loop-back cables

o Uses 1 SBus slot, up to 3 boards per system.	Flexible
  An SS1 can drive 2 HSI/S boards at limit

o May run IR, X.25, SNA 3270 and SNA Peer-
  to-Peer simultaneously as communications
  server gateway

COMMON USES FOR HSI/S
-------------------------
1. As a communications gateway: combination of high speed lines and two 
   or more protocols.  For example, X.25 access to a Public Data
   Network (PDN) and access to an IBM SNA host.

2. As a standalone system: communication to PDN's via X.25

3. To internetwork remote LANs at high speeds
     
 
HARDWARE CONSIDERATIONS
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  - SPARCsystem with available SBus slot and local disk

  - Boot PROM revision levels 1.X or 2.X

  - Access to a CD-ROM drive for software installation

SOFTWARE CONSIDERATIONS
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  - SunOS 4.1 or SunOS 4.1.1

  - 2 Mbytes of disk space


U.S. PRICING AND ORDERING INFORMATION
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The End-User and Reseller price lists will contain the following entries 
(please see the actual price list for specific product notes):


                	   Order       	 List     Discount  	Same Day 
Description           	   Number        Price    Category  	Service Price
===============================================================================
HSI/SBoard, docs, media    X1009U,W,Y    $2500         A 	$10 software,
								$20 hardware
 
Docs Only		   HSS-1.0-X-X-9  $150         A

Note: In the above, the order numbers correspond to system types below:

                          X1009U        SPARCsystem IPX
                          X1009W        SPARCsystem 2
                          X1009Y        SPARCstation IPC

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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All prices, availability, and other statements relating to Sun or third
party products are valid in the U.S. only. Please contact your local
Sales Representative for details of pricing and product availability in
your region. Descriptions of, or references to products or publications
within SunFlash does not imply an endorsement of that product or
publication by Sun Microsystems.

John McLaughlin, SunFlash editor, flash@sunvice.East.Sun.COM. (305) 776-7770.