Index
A
Airmar Technology Corporation 4
C
Cable
491 and 961/962 14
491 and ship’s power
491 to 957/958/6000i
Cautions installation 2, 3, 11
interference with 491 11
tampering with the 491 11 transducer 3, 5, 19
troubleshooting the 491 19 wiring the 491 14, 17
E
Echo sounder
components of system 1, 12 definition of 29
installation. See Installation, 491 serial number 26
setup options 19 specifications 27 STAT indicator light 18 turning off 19 turning on 18
wiring 14
Electrical power, requirements 14
F
Fairing block, definition of 29
I
Installation
491
cautions 2, 11, 14, 17, 19 connecting to 957/958/6000i 16 connecting to 961/962 14 connecting to ship’s power 14 electrical power requirements 14 general considerations 2 mounting dimensions 13 mounting location 13
491 INSTALLATION MANUAL Revision A | PAGE 31 |