The NEXTSTEP/OpenStep FAQ

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5.13 How may I attach more than two serial ports to the NeXT?

serial port, >2 on NeXT

TTYDSP From Yrrid converts the DSP port into an additional serial port.

Yrrid Incorporated 507 Monroe St. Chapel Hill, NC 27516 Voice: 919-968-7858 Fax: 919-968-7856 E-mail: yrrid@world.std.com

Unitnet has a device, the SLAT, that will connect to the scsi bus.

Uninet Peripherals, Inc. Voice: 714-263-4222 Fax: 714-263-4299

Central Data Corporation made the scsiTerminal Server family of products. However they stopped supporting NeXT hardwer. We are told that Central Data may consider the solling or giving of the driver source to an interested party.

Phone: 217/359-8010 Toll-free: 800/482-0315 FAX: 217-359-6904 Email: info@cd.com support@cd.com sales@cd.com Also, one can use an IP terminal server. In a non-Internet environment, inexpensive terminal servers, which don't control access to the network securely, can be used. If your network is an Internet subnet, you must use a terminal server that controls either: (1) who can log into the terminal server, or (2) which machines the terminal server will access. These tend to be more expensive (around $250/port, but in 8-port increments), but it may be quite economical means of sharing ports among many NeXTs (or other computers) on the network.

Particularly if one has a NeXT network, an Ethernet terminal server may be the way to go. One that supports Linemode Telnet (such as the Xylogics Annex III) will offer the best performance.

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