The Data Connect EM9612-OEM
Embedded Modem for Industrial Communication Applications



Design for Industrial communication applications, Data Connect’s EM9612-OEM embedded leased line modem module offers compact size and high performance for point-to-point and point-to-multipoint networks operating up to 9600bps. The serial interface with TTL level is designed to interface with any system controllers and no special device driver required.

The EM9612-OEM embedded module is a complete modem ready to integrate into any host system. The easy to use serial interface drastically reduces development time and cost for system designers. The compact size and low power consumption makes it ideal for any systems with communications requirements.


  • Complete modem for Telco leased line or private line
  • Speeds selectable from 9600, 4800, 1200 bps (202T/V23), ansynchronous 
  • Serial interface compatible with TTL/CMOS level
  • Point-to-point, point-to-multipoint, 23 ms modem train time
  • Asynchronous operation, 10 or 11 bit character format
  • 2 wire half duplex or 4 wire full duplex
  • Automatic adaptive receive equalizer for high performance
  • Transmit and receive cable equalizer for long cable operation
  • Compact size: 2.6” x 2.16” x 0.5”
  • Single +5v power requirement, max.50 mA.
  • Operating Environment (-40°C  to +85°C)
  • Transmit output power from 0 to -14 dBm (2 dB step)
  • Operating distance as line driver at 9600 bps: 20 miles


  • SCADA monitoring and control
  • Remote meter data collection
  • Security gate and door control
  • ATM and point-of-sales terminal
  • Industrial automation monitor and control
  • Gas  and water pumps monitoring
  • Remote sensor monitoring
  • Traffic light monitoring and control
  • Rail road crossing monitoring and control


Data Rate Support:
9600, 4800 bps in fast poll (23 ms train time)
0-1800 bps in Bell 202T mode (8.5 ms or 59 ms train time)
0-1200 bps in ITU-V.23 mode
Data Format: Asynchronous 7, 8, or 9 data bits
10- or 11-bit character with 1 or 2 stop bits

QAM for 9600/4800 bps (Fast Poll)
FSK for 0-1200 or 0-1800 (Bell 202T & V23)

Modem Equalizers:
Automatic & adaptive equalizer
Enhanced fixed cable equalizers for extended range over unloaded cables

Transmission Line Interface:
TELCO Voice band 2- or 4-wire leased line
Private Line, 2- or 4-wire, 19-26 AWG
Connector: 4 pin header

DTE/RTU Interface:
The Modem serial port interface is provided by a 12 pin header /connector

RS-232 Interface (TTL Level)
Connector:         2×6 header (0.10” center)
Signals:                 RTS, CTS, CD, TD, RD, DSR, SG
Signal level:        TTL compatible

Signals at Interface Connector:
Pin 1 & Pin 2: +5V
Pin 3: RTS (Input)
Pin 4: DSR (Output)
Pin 5: CTS (Output)
Pin 6: RD (Output)
Pin 7: TD (Input)
Pin 8: CD (Output)
Pin 9: Reset (Input)
Pin 10: No Connect
Pin 11 & Pin 12: Signal Ground

Power Supply Specifications:
Power Input: 5.0 VDC, +/-5%
Power Consumption:
Idle mode:          40ma @ 5 volts
Normal mode:   45 ma, typical

Mechanical Specifications:
PCB Dimensions: (2.6” x 2.16” x 0.5”)
Weight: 2.0 oz

Environment Specifications:
Operation: -40°C to + 85°C
Storage: -40°C to + 100°C
Humidity: Up to 95% non-condensing