ZyXEL Communications U-336R/RE manual Helpful Hints for Macintosh Computers, Macintosh Serial Port

Models: U-336R/RE

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The serial port is 16550-compatible for most communication software usage. It has a speed of up to 460.8Kbps and data loss errors will not occur when working with a ZyXEL modem's serial port. This solves high-speed communication problems in Windows and other multi-tasking systems. The serial port has a 32-byte transmission and a 32-byte receival FIFO to increase communication program efficiency.

Helpful Hints for Macintosh Computers

Special AT Command Settings for Macintosh

For operation with Macintosh computers, you may use the factory default settings with one exception. You must set the modem to ignore the DTR signal as follows:

Type:

AT&D0<enter> (set modem to ignore DTR)

AT&WZ<enter> (saves the settings to power- up profile)

Macintosh Serial Port

When you connect your modem to a Macintosh computer, make sure the cable is a hardware handshaking type. These cables are readily available. Macintosh Lisa model 128 and 512 don't have hardware handshaking. The serial port on these (very outdated) models is provided as a 9-pin connector similar to that of a PC. The serial port on all other Macintosh models is a Mini-8.

Mac Software Tips

All terminal programs which make use of the hardware handshaking feature can be used on the Apple Macintosh. Such programs are

26 Basic Modem Operation

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ZyXEL Communications U-336R/RE manual Helpful Hints for Macintosh Computers, Special AT Command Settings for Macintosh