451106/B
177
Clock synchronization (1PPS)
The Processing Unit has a 1PPS (one pulse per second) input for clock synchronization.
This is a generic photo. The CBMF board used by the EM 712 may look slightly different
due to minor design changes on the protective lid and/or the front panel.
It can be selected in the operator software SIS wether the falling edge or the rising edge
of the 1PPS signal is used by the Processing Unit to synchronize the internal clock. The
1PPS signal must be minimum 1 microsecond long.
The 1PPS signal is connected to the coax connector on the CBMF board. This connection
is marked
1PPS
. If the Processing Unit has two CBMF boards the lower one must be
used for
1PPS
.
The CBMF board is equipped with an optocoupler at this input. The input series resistor
is tuned for a TTL signal (Low level<0.6 V, High level>3.2 V).
Optically isolated input signals
Note
The input signals must not be negative, that is no RS-232 signals can be used for these
inputs.
A
Input from external system
B
Processing Unit input
circuitry
The input current must be approximately 10 mA. Depending on your input signal
additional resistance must be applied to achieve the required input current.
Summary of Contents for EM 712
Page 8: ...8 451106 B Kongsberg EM 712 ...
Page 102: ...102 451106 B 216148 Transducer TX1 dimensions Kongsberg EM 712 Maintenance Manual ...
Page 103: ...451106 B 103 Drawing file ...
Page 104: ...104 451106 B 221048 Transducer TX2 dimensions Kongsberg EM 712 Maintenance Manual ...
Page 105: ...451106 B 105 Drawing file ...
Page 106: ...106 451106 B 219621 Transducer RX1 dimensions Kongsberg EM 712 Maintenance Manual ...
Page 107: ...451106 B 107 Drawing file ...
Page 108: ...108 451106 B 216146 Transducer RX2 dimensions Kongsberg EM 712 Maintenance Manual ...
Page 109: ...451106 B 109 Drawing file ...
Page 110: ...110 451106 B 223137 Transducer mounting frame 0 5 Kongsberg EM 712 Maintenance Manual ...
Page 111: ...451106 B 111 Drawing file ...
Page 112: ...112 451106 B 223139 Transducer mounting frame 1 Kongsberg EM 712 Maintenance Manual ...
Page 113: ...451106 B 113 Drawing file ...
Page 114: ...114 451106 B 223273 Transducer mounting frame 2 Kongsberg EM 712 Maintenance Manual ...
Page 115: ...451106 B 115 Drawing file ...
Page 116: ...116 451106 B 317812 Casing w mounting frame 0 5 Kongsberg EM 712 Maintenance Manual ...
Page 117: ...451106 B 117 320320 Casing w mounting frame 1 Drawing file ...
Page 118: ...118 451106 B 375817 Combined casing w mounting frame 1 Kongsberg EM 712 Maintenance Manual ...
Page 119: ...451106 B 119 331369 Casing w mounting frame 2 Drawing file ...
Page 120: ...120 451106 B 396402 EM 712 Transmitter Unit dimensions Kongsberg EM 712 Maintenance Manual ...
Page 121: ...451106 B 121 212984 EM 712 Transmitter Unit mounting bracket Drawing file ...
Page 122: ...122 451106 B 396428 EM 712 Receiver Unit dimensions Kongsberg EM 712 Maintenance Manual ...
Page 123: ...451106 B 123 385422 Processing Unit dimensions Drawing file ...
Page 124: ...124 451106 B 378828 Hydrographic Work Station dimensions Kongsberg EM 712 Maintenance Manual ...
Page 125: ...451106 B 125 Drawing file ...
Page 126: ...126 451106 B 371591 Rack installation kit dimenisons Kongsberg EM 712 Maintenance Manual ...
Page 127: ...451106 B 127 370275 Remote Control Unit K REM dimensions Drawing file ...
Page 128: ...128 451106 B Kongsberg EM 712 Maintenance Manual ...
Page 129: ...451106 B 129 373962 Remote Control Unit K REM wiring diagram Drawing file ...
Page 130: ...130 451106 B 409067 Fibre cable kit Kongsberg EM 712 Maintenance Manual ...
Page 144: ...144 451106 B Height 408 mm Weight 10 kg Approximately Kongsberg EM 712 Maintenance Manual ...
Page 219: ...451106 B 219 7 Observe the handling rules for transducers Equipment handling ...
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Page 232: ... 2019 Kongsberg Maritime ...