Tandy 1400 LT User Manual page 78

1200 bps modem
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Appendix
Operating
Modes:
Test
Modes:
Automatic
dialing,
manual
dial
(with
telephone), automatic an-
swer,
manual
answer, automatic
dial
with switch
to
voice
mode.
Analog
(local)
loopback;
remote
digital
loopback
(both
initiate
and
respond). Software
command
con-
trolled.
Receiver
Sensitivity
-45
dBm
Transmit
Level
-10
dBm
Tone
Dial Level:
dBm
Line
Impedance
600
Ohms
Ringer Equivalence:
0.4B
Modulation:
300 baud:
Frequency
Shift
Keyed
(FSK)
1200 baud:
Differential
phase
shift
keyed
(DPSK)
Power
Consumption:
Off Line
On
Line
+5V
+12V
-12V
44.92
ma
56. 6$
ma
44.0
ma
44.0
ma
21.56
ma
21.56
ma
Data
Format
Dialing:
Pulse:
Tone:
8
bit,
no
parity; 7
bit
even, odd,
mark
or space
parity
(rotary)
lOpps.
Including
*
and
#,
duration
70
ms
(adjustable)
App-6

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