The Data Connect ST1442E-503-2


For data center and remote network applications that require Schweitzer applications, the Data Connect ST1442E-503-2 modem incorporates the latest advances in modem design to deliver efficient and reliable performance. The Data Connect ST1442E-503-2 modem has been developed to meet the most stringent environmental and performance demands of the commercial and industrial application. Every relay, transformer, capacitor, switch and connector is selected for its ability to withstand industrial environmental demands. Temperature ratings, for example, range from -40°C to +85°C. Versatile power supply option will meet most industrial applications. At connects speeds of 14400bps and below, our patented Quick Connect features reduce modem connect time by as much as 50%. The Data Connect ST1442E-503-2 modem is available in commercial and industrial single-port standalone configurations. Rackmount configurations are also available.


  • Standard 2-Wire Dial-up
  • 2-Wire Leased Line or Short Haul Operation
  • Standard Error Correction and Compression
  • RS232 & RS485 Terminal Interface
  • Asynchronous and Synchronous DTE Support
  • Exclusive Quick Connect


V.32bis, V.32, V.22bis, V.22, Bell 212A, Bell 103J

DTE Interface:
RS232C (V.24), Synchronous or Asynchronous – Auto baud or selectable formats and rates to 57.6kbps. Industrial model includes RS485

Auto Dial Modes:
Standard AT compatible dial commands or DTR dial or stored number

Answer Modes:
Standard auto answer or manual answer under DTE control

Error Correction:
V.42 and MNP 2-4 error correction

Data Compression:
V.42bis and MNP5 data compression

Configuration Control:
Standard AT commands for both local and remote configuration

V.54 through AT commands


Network Interface:

Dial-up – 2-Wire Pulse or DTMF

  • XMT level – 12dBm
  • RCV sensitivity – 43dBm

2-Wire Leased and Short-haul

  • XM level – adjustable
  • RCV sensitivity – 43dBm

Schweitzer Network Power

Commercial Unit – Operating temperature range 20°C to +70°C
Humidity – 90% non-condensing

Industrial Unit – Operating temperature range -40°C to +85°C
Humidity – 95% non-condensing

FCC Part 68 Part 15, Class A Optional International approvals are available

Commercial Unit –
– Dimensions 5.30”L x 4.60”W x 1.53”H
– Weight – 12oz

Rackmount Unit –
– Fits CC-2016 rack 4.73”L x 4.60”W x 80”
-Weight – 9oz

Ordering Information

DCE/ST1442E-503-2                  V.32BIS 14.4Kbps Standalone Dial or 2-Wire Lease Line Schweitzer Network