A

Modem

Table A-2. Technical Specifications (Continued)

Characteristic

 

SpeciÞcation

 

 

 

 

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

Less than 4 dB.

difference

 

 

 

DTMF composite tone

-3 dBm +/- 2 dB into 600 Ohm termination.

transmit level

 

 

 

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.

 

 

A-4

MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual

Page 71
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Motorola MVME712-13, MVME712A/D3, MVME712-12, MVME712AM, MVME712B user manual Table A-3. Autodialer Characteristics