Motorola MVME712B - Manual (Page 71)

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%.
Output format Same as input format; output character
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.
Environmental requirements Operating: 0 to 65 degrees C.
Storage: -40 to 70 degrees C.
Relative humidity: 0 to 95% noncondensing.
CertiÞcation FCC rules, part 68 certiÞed; DOC certiÞed for
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%.
DTMF dialing Per Bell DTMF speciÞcations.
DTMF tone pair amplitude
difference Less than 4 dB.
DTMF composite tone
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.
Failed call timer Delay: 30 +/- 1 second.
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.
Table A-2. Technical Specifications (Continued)
Characteristic SpeciÞcation