The Data Connect MIU202T
Bell 202T continues to be the standard of choice in many utility and industrial multi-drop data communication applications. The Data Connect Enterprise MIU202T can be powered from a wide range of AC and DC voltages, is surge protected on both power and analog lines, and will operate in extreme heat and cold. Ideal for multi-drop applications over leased lines and private lines.
The MIU202T is a Bell Standard 202T modem designed for asynchronous operation at 0 to 1200bps over voice grade lines and pilot wires. The modem is intended for use on leased lines and private lines and provides half-duplex communications on 2-wire lines, or full-duplex on 4-wire lines.
Most modem manufactured has abandoned the Bell 202T in favor of the much higher speed modulation preferred in dial-up systems. However, Bell 202T remains the standard of choice in many utility and industrial applications where relatively small amounts of data are to be transmitted in multi-point networks.
To meet this continued demand, Data Connect Enterprise has added the MIU202T to its range of communications Interface Units (see spate brochure).
The MIU202T can be powered from any AC or DC voltage in the range of 48V to 200V. A 9-36VDC version is also available. It is designed to work in extended temperatures ranging from -40°C to +80°C, and is surge protected to 8kV, double the voltage requirements of IEC801-4 standard.
All of this bundled in a 5-3/8” x 4” x 1-3/8’ non-metallic enclosure, suitable for desktop o wall mounting. Rackmount cards are also available for the Data Connect Enterprise “Myriad” system (see separate brochure).
- 0-1200bps, Leased Line AC/DC Powered Substation Hardened Bell 202T
- 0-1200bps Over Voice Grade Leased Lines
- Point-to-Point or Multi-Point
- 48 to 220V AC/DC Power Supply
- 9-36VDC Optional Power Supply
- IEC901-4 Surge Protection
- -40°C to +85°C Operating Temperature
- For Meter, RTUs, SCADA, etc.
Asynchronous 0-1200bps over voice grade leased lines or pilot wires
Bell 202T Phase Coherent, Frequency Shift Keyed (SFK)
Full Duplex Over 4-Wire Leased or Private Lines
Half Duplex Over 2-Wire Leased or Private Lines (Constant or Switched Carrier, Dip Switch Selectable)
48VAC/DC (Optional 9-36VDC)
15mA @ 48VDC; 7.5mA @ 115CDV; 7.5mA @ 125VDC
RS232 with DB9 Connector
3-Pin with Screw Terminals for Customers Supplied Cable
5-3/8” x 4” x 1-3/8”
(Power Line): 8kV [Exceeds IEC801-4]
(Analog Line): 3.75kVAC
-40°C to +85°C, 0 to 95%, Humidity (non-condensing)
Mark: 1200Hz ± 0.1%
Space: 2200Hz ± 0.1%
45 seconds or more
Transmitter Output Level:
0 or -10dBm
-33 or -43dBm
1, 12, 35 or 50 msec
Carrier Detect Delay:
Soft Carrier Turnoff:
DCE/MIU202T Bell 202T 0-1200bps Standalone 2/4 Wire Leased Line & Multi-polling 48-220VAC
DCE/MIU202T-LV Bell 202T 0-1200bps Standalone 2/4-Wire Leased Line & Multi-pooling 9-36VDC