Please contact HELIOS if you need more information, or brochures. You can find HELIOS distributors in 16 countries.
****
**EtherShare**
EtherShare is a high-performance AppleTalk-compatible file-server program for UNIX workstations. It needs no drivers or inits on the Macintosh. It features a file-server, print-server, administration server, mail server, host terminal emulation and built-in AppleTalk routing. The file-server allows Macintosh users to store files on the server hard disk or on remote NFS file systems. Network security mechanisms with password etc. AppleShare access permissions are mapped to the Unix file system. The print-server allows PostScript and other printers to be shared between Macintosh and Unix. Optional SLIC LocalTalk interface card for SBus (see elsewhere). Remote administration allows printers and users etc. to be set up from any Macintosh. Includes print job accounting, central management of fonts on the host and special pre-press features (optional OPI). The host terminal emulation supports multiple vt320 sessions. Optional AppleTalk Tunnel software allows you to interconnect AppleTalk networks via X.25 and ISDN (requires TCP/IP routing). Optional AppleTalk programmer´s toolkit.
**SLIC LocalTalk card**
The SLIC LocalTalk interface card for SBus allows you to connect up to 32 LaserWriter-compatible printers and Macintosh computers to each UNIX workstation through a single AppleTalk adapter at up to 230 kbit/sec. The software provided includes AppleTalk network routing, a print-server, host terminal emulation and a UNIX line printer emulation program for PostScript printers but no file-server. SLIC allows Apple-compatible printers to be shared between Unix, Macintosh and DOS PCs (through ´lpr´). It is fully-compatible with HELIOS EtherShare.
The router supports multiple LocalTalk and Ethernet interfaces (both AppleTalk Phase I and Phase II) and works in the background. Router and printer configuration is through a menu-driven program.
SLIC uses the same PAP spooler technology as EtherShare but does not support font downloading and printer accounting. The host terminal emulation supports multiple sessions to one or more hosts through Apple´s Comms Toolbox. The UNIX line printer emulation lets you print text and nroff files on PostScript printers.
**AppleTalk Programmer´s Toolkit**
The AppleTalk Programmer´s Toolkit is a programming library for the C language under Unix. It allows you to write Unix applications that communicate directly with AppleTalk networks. Programs written with the AppleTalk Toolkit can only run on systems where HELIOS EtherShare or SLIC is installed.
The following AppleTalk protocols are supported: DDP, NBP, ZIP, ATP, PAP and ADSP. The Toolkit includes sample programs in source code for all of these protocols. The Toolkit functions are largely compatible with those described in Apple's "Inside AppleTalk" book. A scheduler is available for Asynchronous Completion Functions. All HELIOS AppleTalk programs for Unix were developed with the help of this Toolkit.
There is no runtime license charge. The Toolkit is free of charge to Universities who have already bought EtherShare.
**PCShare**
PCShare is a high-performance MS-DOS-compatible file-server program for UNIX workstations. MS-DOS PCs can read files from the host at up to 800 kByte/sec. The DOS driver needs only approx. 25-40 kB of RAM. PCShare is fully compatible to Windows 3.x. Full support for DOS file and record locking conventions. Open standards - PCShare is based on standard Unix and standard TCP/IP.
PCShare features a file-server, print-server and host terminal emulation. The file-server allows you to store PC files on the server hard disk or on remote NFS file systems and to share files with Unix and HELIOS EtherShare users. Standard Unix security mechanisms are used. The print-server allows PostScript and other printers to be shared by PC, Unix and EtherShare applications. The print-server is compatible to the SLIC LocalTalk card (see elsewhere). The terminal emulation allows PC users to run Unix applications and access the Unix shell. Terminal configurations provided for popular Unix applications.
**EtherShare OPI**
If you are using DTP programs together with TIFF or EPSF images, EtherShare OPI lets you work on-screen with layout quality images which are automatically replaced by images at the original full resolution during the printing process. The layout images are automatically created from the original images by the EtherShare OPI software. The latter are stored centrally on the fileserver rather than on each workstation, minimizing network traffic.
EtherShare OPI, an add-on product for EtherShare, actually supports two standards: OPI (Open Pre-press Interface) from Aldus Corp. and DCS (Desktop Color Separation) from Quark. Whereas the former concerns TIFF images, the latter concerns color EPSF (CMYK) images.
EtherShare OPI has the following features:
** Faster positioning of high-res images in DTP applications
Placing an 11 MB color image in a Quark Xpress 3.0 document takes about 40 seconds without OPI and only 4 seconds with OPI.
** Faster printing to the EtherShare spooler
Printing to the EtherShare spooler of a 4-color separation from Quark Xpress 3.0 takes about 180 seconds without OPI and only 17 seconds with OPI, freeing the workstation earlier for other tasks.
** Smaller print job spool files in the EtherShare spooler
Printing an 11 MB image takes up about 11-20 MB in the print spooler, since the spool file duplicates the color image stored elsewhere. The same job needs only 500 kB in the spool file with EtherShare OPI.
** Allows off-site designers to work with layout images
Off-site layout artists or designers can work with the layout-quality images rather than high-resolution images, which remain on the file server. This simplifies the transport of the image files due to the much reduced storage requirements, allowing diskettes to be used in some cases rather than exchangeable cartridges.
** Compatibility with EPSF files and DCS
All Macintosh DTP and word processing programs that accept EPSF images are compatible with EtherShare OPI. When you store an EPSF image on the EtherShare server, a matching EPSF image in layout quality is created automatically. EtherShare OPI also suports color EPSF images stored as DCS files.
** Compatibility with the OPI standard from Aldus
EtherShare OPI can process TIFF images from OPI-aware applications such as Quark XPress and PageMaker. When you store a TIFF image on the EtherShare server, a matching TIFF image in layout quality is created automatically. When printing, the TIFF layout image is automatically replaced by the corresponding color information from the high-resolution CYMK-TIFF image.
** Compatible to Cumulus image database
EtherShare OPI is also compatible to the Cumulus image database from Canto Software, which is based on AppleShare client-server technology.
