Kongsberg K-Sync, Installation Manual

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342741/B
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Table 4 Trigger interface overview (KM)
Inputs from echo sounder Trigger output to echo sounder
Pulse properties Make and
model
Ready to
transmit -
Signal Active
Transmitting -
Signal Active
Signal setting -
Signal active
Trigger
condition
Pulse length
Processing
Unit (1)
TTL,
Active High
TTL,
Active Low
TTL,
Logical High
Rising Edge < 10 ms
SBP 27/29 TTL,
Active High
TTL,
Active Low
TTL,
Logical High
Rising Edge < 10 ms
WBT
Auxillary
output (2)
TTL,
Active Low
TTL,
Active High
TTL,
Logical High
Rising Edge N/A
Topas TTL,
Active Low
TTL,
Active High
TTL,
Active Low
Rising Edge < 30 ms
SX90, ME70,
MS70, EK60,
EK80 (3)
RS-232,
Active High
RS-232,
Active High
RS-232,
Active High
Falling Edge < 10 ms
EA640/660 RS-232,
Active High
RS-232,
Active High
RS-232,
Active High
Falling Edge < 10 ms
EM 122/302/7
10/710 MKII
RS-232,
Active High
TTL,
Active Low
RS-232,
Active High
Falling Edge < 50 ms
EA400/600 No RTT
available
TTL,
Active Low
TTL,
Active High
Rising Edge < 50 ms
SBP
120/300/300
MKII
RS-232,
Active Low
TTL,
Active Low
TTL,
Active Low
Rising Edge < 50 ms
EM 3002 RS-232,
Active Low
TTL,
Active Low
RS-232,
Active High
Falling Edge < 10 ms
(1) Supports all models of EM 2040, EM 712, EM 304 and EM 124
(2) Supports all models of EA 640, EA 660 and EK 80
(3) Sync I/O from PC/Workstation using serial DB9 interface.
Ready to transmit timeout
The timeout is set in seconds and determines how long the system should wait for a
“Ready to transmit” signal before timing out and disabling the sonar in question. The
value entered here would therefor need to be different depending on the operational
depth and the swath width of the system in question.
For example, an EM 124 system operating at 4000m depth is expected to have a swath
width of 144 degrees, and so it has a total slant range of approximately 12.900m.
Cable layout and interconnections