MultiModemDSVD User Guide

 

B Technical Specifications

Voice Compression

PCM 128, 8000 Hz, or IMA ADPCM, 8000 Hz, (selectable

and Sampling Rate

via #V commands). Note that your computer system should

 

have a processing speed of at least 75 MHz to take full ad-

 

vantage of the telephony features of this product.

Transmit Level

-11 dBm (dial-up)

 

Frequency Stability

±0.01%

 

Receiver Sensitivity

-43 dBm under worst-case conditions

AGC Dynamic Range

43 dB

 

Impedances

Microphone input:

2.2 kW (MT5600DSVD only)

 

Speaker output:

50W (MT5600DSVD only)

Interface

EIA RS-232C/ITU-T V.24/V.28

Connectors

DB25 RS-232C connector; two RJ-11 phone jacks (one RJ-11

 

jack on UK and international modems), power jack; 1/8-

 

inch stereo speaker jack and microphone jack.

Cables

One RJ-11 phone cable (USA); country-specific cord for UK

 

and International models; external power transformer and

 

cord

 

 

 

 

Note: Any cables connected to the computer should be

 

shielded to reduce interference.

Diagnostics

 

Power-on self test, local analog loop, local digital loop, re-

 

mote digital loop.

 

Indicators

LEDs for Transmit Data, Receive Data, Carrier Detect, 56K

 

bps, 33.6K bps, 14.4K bps, Off Hook, Terminal Ready, Error

 

Correction, Fax.

 

Speaker

Command-controlled 2-inch speaker for call progress moni-

 

toring.

 

Manual Control

ON/OFF power switch

Environmental

Temperature range 0°–50°C (32°–120°F); humidity range

 

20–90% (non-condensing)

Power Requirements

100–130VAC, 50/60 Hz, 5 W; two-prong outlet-mounted

 

transformer (included); 230V/50 Hz optional (international)

Power Consumption

9 VDC, 300 mA maximum transformer output

Dimensions

10.8 cm wide x 14.8 cm long x 2.9 cm high (4.25" x 5.8" x

 

1.15")

 

Weight

224 g (8 oz)

 

Limited Warranty

10 years

 

Multi-Tech Systems, Inc.

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