Engine Order Telegraph System
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EOT-706 / EOT-800

EOT-706 - Engine Order Telegraph System


The Engine Order Telegraph (EOT) is a piece of equipment used to communicate speed orders from the Wheelhouse/Bridge to the Engine Control Room (ECR) or Engine Room as well as receive replies from the ECR/ER to Wheelhouse.



  • Single or twin screw operation. Triple or Quadrable screw configurations also possible
  • Multiple stations
  • Reliable Bi-directional RS-485 serial communication between stations
  • Auto dimmer
  • Membrane keypad
  • Lamp test
  • Voyage Data Recorder (VDR) Interface available (NMEA or MODBUS Serial)
  • Sounder and Flasher (Engine Room Panel)
  • Rugged Design & Construction



Commands are initiated by pressing the respective command buttons on the wheelhouse panel. These commands are transmitted via a two-wire serial interface to the engine room panel. The engine room stations will blink the corresponding LEDs and activate the beacon and siren until the command is acknowledged. The LED will then stop blinking and the alarm is muted.




EOT-706(WH,ECR) / EOT-800 (WH-ECR)

EOT-706(ER) / EOT-800(ER)

Power Supply: 24 VDC

10 + 2 Orders
Full Ahead
Half Ahead
Slow Ahead
Dead Slow Ahead
Finished with Engine
Dead Slow Astern
Slow Astern
Half Astern
Full Astern

Bridge Control

Functions: Lamp Test, Auto Dimmer

Alarm Type: Visual Indication (LED), Audible Alarm (Buzzer) Visual Indication (LED), Audible Alarm (Sounder) 
Protection: Fused, Communication Link Failure Notification
Communication Type: Bi-Directional RS-485 Serial Communication Link
(Proprietary Protocol)
Operating Temperature: -20 to 50 degC
Operating Relative Humidity: 0 to 95% (Non-Condensing)
Finishing: Matt-Black, Poly-Carbonate Laminate

EOT: Matt-Black Poly-Carbonate Laminate
Encloure: Mild-Steel, Epoxy Powder-Coated (Blue)

Mounting: Flush Mount Bulkhead / Wall-Mount
Dimensions: H310 x W150 x D30 mm H470 x W250 x D150 mm
Weight: 0.6 kg 5 kg




VDR Interface Module
(Voltage Output)

VDR Interface Module
(IEC-61162-1 Output)

VDR Interface Module
(Modbus Output)
Operating Voltage:   24 VDC 24 VDC 24 VDC
Output to VDR:


Output Type: Voltage


Full Ahead = +9.0 VDC
Half Ahead = +7.5 VDC
Slow Ahead = +6.0 VDC
Dead Slow Ahead = +4.5 VDC
Finished with Engine = +3.0 VDC
Bridge Control = +1.5 VDC
Idle/Acknowledged = 0 VDC
Standby = -1.5 VDC
Stop = -3.0 VDC
Dead Slow Astern = -4.5 VDC
Slow Astern = -6.0 VDC
Half Astern = -7.5 VDC
Full Astern = -9.0 VDC

 Output Type: IEC-61162-1

Supported VDR Sentences: ETL, EVE, GEN
Connector: Screw-Type Wire Terminals

Output Type: Serial Modbus



0.8 kg

0.8 kg

0.8 kg


Connection Diagram

EOT-706 - Connection Diagram


EOT-706 - Dimensions

Ordering Information (Part Numbers)

  • EOT-706(WH-F/1) / EOT-800(WH-F/1) - Engine Order Telegraph Unit (Wheelhouse/Fwd Station/Single Engine)
  • EOT-706(WH-F/2) / EOT-800(WH-F/2) - Engine Order Telegraph Unit (Wheelhouse/Fwd Station/Twin Engine)
  • EOT-706(WH-A/1) / EOT-800(WH-A/1) - Engine Order Telegraph Unit (Wheelhouse/Aft Station/Single Engine)
  • EOT-706(WH-A/2) / EOT-800(WH-A/2) - Engine Order Telegraph Unit (Wheelhouse/Aft Station/Twin Engine)
  • EOT-706(ECR-F/1) / EOT-800(ECR-F/1) - Engine Order Telegraph Unit (Engine Control Room/Fwd Facing/Single Engine)
  • EOT-706(ECR-F/2) / EOT-800(ECR-F/2) - Engine Order Telegraph Unit (Engine Control Room/Fwd Facing/Twin Engine)
  • EOT-706(ECR-A/1) / EOT-800(ECR-A/1) - Engine Order Telegraph Unit (Engine Control Room/Aft Facing/Single Engine)
  • EOT-706(ECR-A/2) / EOT-800(ECR-A/2) - Engine Order Telegraph Unit (Engine Control Room/Aft Facing/Twin Engine)
  • EOT-706(ER/1L) / EOT-800(ER/1L) - Engine Order Telegraph Unit (Engine Room/Single Engine)
  • EOT-706(ER/2L) / EOT-800(ER/2L) - Engine Order Telegraph Unit (Engine Room/Twin Engine)
  • EOT-706(ER-P/1) / EOT-706(ER-P/1L) - Engine Order Telegraph Unit (Engine Room/Port Engine)
  • EOT-706(ER-S/1) / EOT-706(ER-S/1L) - Engine Order Telegraph Unit (Engine Room/Starboard Engine)
  • EOT-706(VDR) - Voyage Data Recorder Interface Unit (Voltage Output)
  • EOT-800(VDRD) - Voyage Data Recorder Interface Unit (IEC 61162-1 Output)
  • EOT-800(VDRM) - Voyage Data Recorder Interface Unit (Serial Modbus Output)


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Singapore 757695
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