Protocol (Dip) Switches - Tandy DCM-7 Operation Manual

Chapter 1
Protocol (DIP) switches
DIP switches control the DCM-7's power-up condition. These switches must
be set before you turn the power ON.
First, you will have to decide whether you want to use the Modem in the
Tandy protocol mode or Hayes protocol mode~ If you are using Tandy com-
munications software, you will want to set it for Tandy protocol. For use
with Hayes communications software, set it to the Hayes protocol mode.
(Both the Tandy 1000 and 1200 and 3000 personal computers can be used
with either communications software.)
Tandy protocol
When you select Tandy protocol mode, set DIP Switch 7 to ON. This tells
the Modem to set other DIP switch functions as listed in Table 1. Refer to
Figure 4 for the suggested switch settings in this mode (black portion shows
the switch position).
NO
FUNCTION~
m=;NO FUNCTION
NO
FUNCTION~ ~AUTO
ANSWER DISABLE
TRUE CARRIER!
I
HAYES PROTOCOL
TRUE DTR
1
1
1
1
No FUNCTION
l 1 ~~~~~~11l~. 1~
01 2 3 4 5 G 7 8
N -
FORCED DTR
J
I
1 1 1 1
I
L
NO FUNCTION
FORCED CARRIER TANDY PROTOCOL
NO FUNCTION.. .. . . . ... AUTO ANSWER ENABLE
NO FUNCTION - . . .. NO FUNCTION
Figure 4. DIP Switch Settings in Tandy Protocol Mode
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