Tandy 1000 Owner's Manual

Description of the PC Modem
Warning:
Do not stand on a carpeted floor when you handle the Modem
Board.
Walking on carpets promotes the build-up of static electricity, which
if discharged while you are handling
a circuit board, can destroy integrated
circuits
(IC’s) on the board. Touch a grounded metal object before handling
any circuit board to avoid static electricity build-up.
DIP switches
DIP switches control the Modem’s power-up condition. These switches must
be set before you install the Modem Board.
Refer to Figure
1 for the suggested switch settings.
NO RESULT CODES
VERBAL RESULT CODES
FORCED DTR
COMMAND ECHO OFF
AUTO ANSWER DISABLE
NO FUNCTION*
NO FUNCTION*
TRUECARRIER
1 1 1 FcoM’
AUTO ANSWER ENABLE
COMMAND ECHO ON
TRUE DTRg
1
NUMERIC RESULT CODES
SEND RESULT CODES
* DIP swich 7 must always be off.
Figure 1. DIP Switch Settings
4

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200