Owner's manual

on the screen.
When configuring your modem program, you should set it for
9600 baud, eight data bits, one stop bit, and no parity. Higher or
lower baud rates can be used if you configure the Smart Brick
Brain’s serial port to run at a different speed. You should set your
program not to insert an extra LineFeed (LF) character after each
Carriage Return (CR) it receives. If you are going to be down-
loading configuration strings to the system (command ‘s’), you
will also need to tell the modem program to put a slight delay
between each character sent in order to not over run the Smart
Brick Brain’s incoming data buffer.
If you have hooked up the Smart Brick Brain to your computer
and it still doesn’t seem to respond to the keyboard, the first thing
to check is that you are attached to the correct serial port. The
easiest way to check this is to disconnect the Smart Brick Brain
and short between the Tx data out and Rx data in pins on the se-
rial port connector on the back of your computer. On all IBMs
and compatibles this means sticking a paper clip or similar tool
between pins 2 and 3 on the ‘Com.’ connector. While still running
the modem program, anything you type should be shown on
the screen while this paper clip is in place, while nothing will ap-
pear when you remove it. If your computer passes this test, then
you are using the right serial port and the problem is most likely
the baud rate setting or in your wiring to the Smart Brick Brain. If
you get characters on the screen even with the paper clip re-
moved from the serial port, it means you probably need to set
the ‘echo’ mode to ‘none’ or ‘full duplex’ and try this test again.
The Smart Brick Brain uses a six position RJ-11 modular tele-
phone style connector for the serial data. This is the same style of
connector and pin out as is used on the AB-100 Digital Audio
Repeaters. Facing the end of the cable with the release latch
upwards, its pin out is as follows:
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