ECD » Data Broadcast Units » DBU-2328

 DBU-2328: Data Broadcast Unit




  • Interface - EIA RS-232, DB-25 Female Connectors
  • Data Rates - Sync or Async to 128Kbps
  • Visual Indication of Data/Clock Activity
  • Receive Data, Clock and Optional Control Signal Broadcast to all Subchannels
  • Redundant Cascading via Latching Relays
  • Surge Suppression on all RS-232 Data Interfaces and Power Supply
  • Ideal for V-SAT Data/Clock Broadcasting
  • Sturdy Metal Enclosure
  • 110/220VAC Switch Selectable


The East Coast Datacom DBU-2328 is designed for use in RS-232 "receive only" data broadcast applications. This unit supports up to eight receive only terminals simultaneously. Examples of typical data broadcast applications are; Continuously updated public data displays and distribution of continuous data to Routers, PC’s or receive only printers.

The expanding role of V-SAT systems in "receive only" applications for real time data distribution is expected to increase dramatically over the next several years. The DBU-2328 is an excellent choice for applications of this type or any RS-232 simplex data distribution.

The DBU-2328 utilizes an RS-232 interface with data rate capabilities up to 128Kbps. The unit supports up to eight receive only terminals simultaneously. Surge protection is provided for all RS-232 data interfaces and the power supply input.

The DBU-2328 continuously broadcasts receive data, receive timing and an optional control signal(DCD) from the data source to the eight output terminal ports. Each data port has independent drivers and receivers for transmission.

The DBU-2328 supports cascading multiple units together from a single data source for multiple outputs. The unit has a redundant cascade port that utilizes positive latching relays. If a single unit looses power, all remaining units will continue to function without error.

The DBU-2328 is housed in a sturdy aluminum enclosure and is supplied with an internal linear power supply. The unit has a 110/120 VAC rotary select switch located on the rear of the housing. The unit can operate on standard power found in all countries.

The DBU-2328 has a three year warranty and a 24 hour turnaround on warranty repairs.

Port Pinouts
Signal Name
Chassis Ground
Receive Data
Signal Ground
Data Carrier Detect
Receive Timing

Pins 5 (RTS) and 6 (CTS) are looped


Multiple Sync or Async Broadcasting
of Data, Clock and a optional Control Signal
One Input Port for DCE connection
Eight Output Ports for DTE connection
One Cascade Port(any number of units
may be cascaded)
EIA RS-232 with Surge Protection
Data Rates
Up to 128Kbps
Data Format
Data transparent at all data rates
Port Connections
DB-25 female connectors
Front Panel Indicators
Power(PWR), Receive Data(RXD), ReceiveTiming(CLK) and Data Carrier Detect(DCD)
Power Source
100-120 to 200-220VAC @10%, 50/60Hz, 0.16/0.08A, external 110/220 volt select switch, IEC Power Inlet, (2) 5mm Fuses
Operating Temperature....32º to 122º F (0º to 50º C)
Relative Humidity.............5 to 95% Non-Condensing
Altitude............................0 to 10,000 feet
Height ....... 1.75 inches (4.44 cm)
Width ........ 13.35 inches (33.09 cm)
Length ....... 9.00 inches (22.86 cm)
4.5 pounds (2.1 Kg)
Three Years, Return To Factory
Ordering Information
Part Number: 155000
Model: DBU-2328
Description: 8 Port, RS-232 Data Broadcast Unit
Included with each unit:
1) Operations Manual
2) Power Cord

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Bomara Associates Phone: 800.5BOMARA (800.526.6272) Phone: 978.452.2299 Fax: 978.452.1169 3 Courthouse Lane, Chelmsford, MA 01824 USA
Phone: 800.5BOMARA (800.526.6272)

Phone: 978.452.2299


Fax: 978.452.1169

Email: bobr@bomara.com

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