Motorola MVME712B Manuale Utente
Modem
A-4
MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual
A
Input command format
Asynchronous; ASCII 10-bit or 11-bit upper- and
lowercase characters (including start, stop, and
parity bits). Accepts input gross start/stop
(switching) distortion up to 35%.
lowercase characters (including start, stop, and
parity bits). Accepts input gross start/stop
(switching) distortion up to 35%.
Output format
Same as input format; output character
distortion less than 3%.
distortion less than 3%.
Dimensions
L = 3.5 in.; W = 2.75 in.; H = .562 in.
Power requirements
+5 Vdc @ 100 mA maximum.
-12 Vdc @ 25 mA.
+12 Vdc @ 25 mA.
-12 Vdc @ 25 mA.
+12 Vdc @ 25 mA.
Environmental requirements
Operating: 0 to 65 degrees C.
Storage: -40 to 70 degrees C.
Relative humidity: 0 to 95% noncondensing.
Storage: -40 to 70 degrees C.
Relative humidity: 0 to 95% noncondensing.
CertiÞcation
FCC rules, part 68 certiÞed; DOC certiÞed for
Canadian use.
Canadian use.
Table A-3. Autodialer Characteristics
Characteristic
SpeciÞcation
Dialer type
Command selection of pulse or DTMF.
Pulse dialing
Pulse rate: 10 pulses per second +/- 10%
Duty cycle: 61% +/- 3% or 67% +/- 3%.
Duty cycle: 61% +/- 3% or 67% +/- 3%.
DTMF dialing
Per Bell DTMF speciÞcations.
DTMF tone pair amplitude
difference
difference
Less than 4 dB.
DTMF composite tone
transmit level
transmit level
-3 dBm +/- 2 dB into 600 Ohm termination.
Input string storage
Up to 40 commands.
Answer back tone detector
Frequency 2100 or 2225 Hz, threshold:
-43 dBm +/- 3 dB.
-43 dBm +/- 3 dB.
Failed call timer
Delay: 30 +/- 1 second.
Start: from last digit dialed (adjustable).
Start: from last digit dialed (adjustable).
Billing delay
2 seconds following off-hook upon answer.
Call progress messages
OK, connect, connect 600, connect 1200,
connect 2400, ring, no carrier, error,
no dial tone, busy, no answer.
connect 2400, ring, no carrier, error,
no dial tone, busy, no answer.
Table A-2. Technical Specifications (Continued)
Characteristic
SpeciÞcation