Teledyne Echotrac E20, Operator'S Manual, Page: 22 / 60

INSTALLATION
Echotrac E20 Operator's Manual8 p. 22 of 60 November 25, 2020
Version 8
Uncontrolled Technology Subject to Restrictions Contained on the Cover Page.
4.2 Echotrac E20
4.2.1 Rear Panel Cable Connections
All dry-end cables provided by Teledyne Odom Hydrographic come with factory-installed connectors
to be attached at the appropriate port(s) on the rear panel of the Echotrac E20.
Do not disconnect any cables from the rear of the Echotrac E20 while the unit is
running. This can damage the internal workings of the unit.
The critical connections are clearly marked on the unit and shown in Figure 5 .
Table 6: Echotrac E20 rear panel cable connections
Connector Description
Grounding Protective earth screw for equipotential connection
LAN Gigabit Ethernet
COM1, COM2, COM3,
each with status LED Serial port for external sensors and serial sounding data
 Yellow, flashing: Data is transmitted
 Green, flashing: Data is received
SYNC with status LED Connector for trigger input/output and PPS input
 Yellow: E20 pinging
 Green, flashing: PPS connected (before E20 is set into an
operational mode)
TX1 Transducer connection, one or two channels can be connected
TX2 Transducer connection, one or two channels can be connected
Power DC power supply: 10-30VDC, max. 50W
Figure 5: Echotrac E20 rear panel cable connections
For safety purposes, the Echotrac E20 must be connected to protective earth. The
protective earth pin in the DC connector is the protective conductor terminal of E20.
The LEDs for the SYNC port and the three COM ports will only be lit, when the E20 is
connected to power.