Technical specifications – Multi-Tech Systems MTA128ST-USB User Manual
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Chapter 1 - Introduction and Description
MTA128ST-USB
Technical Specifications
Your MTA128ST-USB terminal adapter meets the following specifications:
Trade Name
MultiModemISDN
Model Number
MTA128ST-USB (International)
Network Interface
Four-wire S/T interface
Switch Compatibility
EuroISDN (ETSI/DSS1/NET3), VN4, INS64, U.S. NI-1,
AT&T 5ESS, DMS-100
B-Channel Protocols
V.110, V.120, X.75, ML-PPP
Voice Coding
PCM: A-Law (Europe); µ-Law (US)
LED Indicators
10 front panel LED indicators: Transmit Data, Receive Data,
Call Status, B1 Active, B2 Active, Terminal Ready, Off Hook
(AUX port), 128 Kbps, P1 Active (data protocol), P2 Active
(data protocol)
Data Rates
300, 1.2K, 2.4K, 4.8K, 9.6K, 19.2K, 38.4K, 56K, 57.6K, 64K,
115.2K, 230.4K, and 460.8K bps
Data Connections
Two ISDN B-channels
One ISDN D-channel
One analog port for connecting a standard telephone,
modem, or fax machine
Command Interface
AT commands, S-registers, result codes, Windows 98/95
configuration utility, and Windows 98/95 Dial-Up Networking
(DUN)
Connectors
USB: Type B connector
ISDN: RJ-45 female receptacle, 4-wire S/T (accepts
connection cable to the network provider’s NT1 device)
AUX: RJ-11 female receptacle
Switches
Two-position power switch
Power Requirements
Two-prong outlet-mounted transformer (included), 240 VAC
50/60 Hz
Dimensions
15.0 cm × 10.7 cm × 2.8 cm (L × W × D)
Environmental
Temperature range 0°–50° C;
Humidity range 20–90% (noncondensing)
Power Consumption
4 watts
Weight
224 g (8 oz)
Warranty
5 years