Specifications

Chapter 4 – SocketModem (MT2456SMI-22)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342F) 89
Technical Specifications
The SocketModem (MT2456SMI-22) meets the following specifications:
Category Description
Data Standards
V.22bis, V.22; Bell 212A and 103
Data Format
Serial, asynchronous
Character Format
10 bit
Serial/Data Speeds
Serial port data rates adjustable to 300, 1200, 2400, 4800, 9600, 19,200,
38,400, 57,600, and 115,200
Client-to-Client Data Rates
2400, 1200, 0-300 bps
Data Error Correction
V.42 (LAP-M or MNP 2–4)
Data Compression
V.42bis
Modes of Operation
Full duplex over dial-up lines; data mode, command mode, and online command
mode
Dimensions
2.541” L × 1.045” W × 0.68” H (6.45cm x 2.65cm x 1.7cm)
Weight
0.6 oz. (0.017 kg.)
Operating Temperature
0 to +70° C
Storage Temperature
-40° to +85° C
Humidity
20% to 90% (non-condensing)
Operating Voltage
Typical: 3.3 V DC ± 5%; Absolute Maximum Supply Voltage: 3.6 V DC
Typical: 5 V DC ± 5%; Absolute Maximum Supply Voltage: 5.5 V DC
Power Consumption
5 Volt: Typical: 61mA (.305W @ 5VDC);
Maximum: 68mA (.357W @ 5.25VDC)
3.3 Volt: Typical: 62mA (.205W @ 3.3VDC);
Maximum: 72mA (.259W @ 3.6VDC)
Transmit Sensitivity
-12 dBm (varies by country)
Receiver Sensitivity
-43 dBm
DAA Isolation
1.5Kv r.m.s. or 2121 VDC at working voltage of 250VAC
Flow Control
XON/XOFF (software), RTS/CTS (hardware)
Command Buffer
50 characters
Warranty
2 years
Intelligent Features
AT command compatible
V.22bis fast connect
Supports V.80
Supports Fast POS 9600
Line polarity reversal detection
Line current loss detection
Line-in-use detection
Extension pickup detection
Remote hang-up detection
Call waiting detection
U.S. Caller ID
Autodial, redial
Pulse or tone dial
Auto answer
Call status display