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350 Cable Survey System
DPN 402197 © TSS (International) Ltd Page 10 of 14
Figure 10–9: 401103-3 Processor Board - Comms
+5V1 -12V1 +12V1
ITXD1 IRX1A
RXEN1 ITX1
GND1 GND1
IRX1B +5V1
RXEN1
RXEN1
ITXD1 GND1
+5V1
IRX1C
RXEN1
GND1
+12V1
+12V1
GND1
-12V1 +5V1
ITXD1
GND1
+12V1 +5V1
-12V1
+5V2
+5V2 -12V2
TTXD2
TTXD3
GND2 GND2
-12V2
TRXD2
TRXD3
GND2
+5V
+5V
+5V
+5V
+12V2
GND
+12V2
+12V2
-12V2
R-
R-
232TX
R+
422B
T-
422B
T+
232RX
T+
GND1
422A
GND1GND1
GND1
232RX
T-
232TX
422A
GND2
GND2
GND
GND
GND
TxD1
DTR1
RxD1
TxD2
TxD3
RxD2
RxD3
COMMS2
COMMS3
COMMS4
COMMS1
FGND
ITXD2 IRXD2
ITXD3 IRXD3
+5V
GND
Title
Size Document Number Rev
Date: Sheet of
401103G3 G
PROCESSOR BOARD - COMMS
(C) TSS (UK) Ltd. 2001
ALL RIGHTS RESERVED
TSS 350 CABLE SURVEY SYSTEM
A3
34Tuesday, August 14, 2001
LINK POS 1-2 3-4 5-6 7-8
RS232
TXDATA
RS422
BUS 'A'
4 WIRE
C' LOOP
RX+
2WIRE
C' LOOP
LOOP +
MODE
COMMS1
COMMS2
COMMS3
COMMS4
RXDATA
COMMON
BUS 'B'
COMMON
RX-
TX+
TX-
LOOP -
TX
RX
COMMON COMMON
OPEN CCT
OPEN CCT
NB: ALL 5 LINKS MUST BE SET TO THE SAME POSITION
75155 C' LOOP
2430 4100 4200
ONE PAIR FOR
EACH 75155
SCC2 CHANNEL 2
LAYOUT INFORMATION:
REGION 3
INTO OR OUT OF THIS
REGION. WITH THE EXCEPTION
OF EMC EARTH
COMMS FROM ALTIMETER
AND R-P SENSOR
(OPTIONS)
(?xD4) IS NOT USED
ALTIMETER
R-P SENSOR
LAYOUT INFORMATION:
REGION 1
PRIMARY REGION
'176
GND1
(& 485)
GND2
232
422
4CL
2CL
T+
TO PRIMARY
HEADER
COMMS
REGION. WITH THE EXCEPTION OF EMC
EARTH
INTO OR OUT OF THIS
LAYOUT INFORMATION:
REGION 2
TRACKS MUST NOT CROSS
EMC Earth
Connect to
Mounting holes
TRACKS MUST NOT CROSS
EMC Earth Connect to
Mounting holes
1579
24SEP992
REVISION HISTORY
DB
TWT
BY
ECR
08SEP95
GB
21FEB95
C
REV
4
B
14 AUG 01
ISS
16 OCT 00
CCT
614 MI
F
1676
D
* Note issue 3 not used due
to part number errors
ED
21566
1423
5**
SWE
----
6
2
NOs
2
17APR00
PCB
1240
G
BY
4
CHK
3*
A
DATE
DB
RPM
20APR00
BB
** Issue 5 Not Used (Addition of Assy
revision box & PLCC sockets removed).
DB
U24
HPCL4200
VCC
8
GND
5
OE
6
OUT
7
I+
1
I-
2
DC24
RP4C
1K
14
LK3
1
3
5
7
2
4
6
8
R7
1K
RP4D
1K
15
LK1
1
3
5
7
2
4
6
8
DC32
R8
1K
DC28
R6
56R
TP12
U19
HCPL2430
A1
1
K1
2
VCC
8
O1
7
O2
6
GND
5
K2
3
A2
4
U20
HCPL2430
A1
1
K1
2
VCC
8
O1
7
O2
6
GND
5
K2
3
A2
4
U22
75155
V+
8
RXI
5
TXO
7
RTC
6
GND
4
TXI
2
RXO
3
V-
1
U21
NMH 0512S
NO PIN
3
IP-
2
IP+
1
OP-
4
OPC
5
OP+
6
U26
LM340-5
I
1
O
3
G
2
DC30
2u2
R4
1K
D2
RED LED
U25
HPCL4100
VCC
8
GND
5
O+
3
O-
4
IN
6
DC37
DC33
C3
0.1uF
DC25
100u
DC31
1u
L1
Pi-Filter
RP4B
1K
13
DC27
DC39
D1
RED LED
TP13
Q1
BD131
R3
1K
R16
10k
RP4A
1K
12
DC43
DC34
R15
10k
DC36
U23
75176
RXO
1
REN
2
DEN
3
TXI
4
A
6
B
7
VCC
8
GND
5
LK4
1
3
5
7
2
4
6
8
L2
Pi-filter
L5
Pi-Filter
LK5
1
3
5
7
2
4
6
8
DC29
R5
5k6
L6
Pi-Filter
C1
1n
DC42
100u
L9
Pi-Filter
U28
HCPL2430
A1
1
K1
2
VCC
8
O1
7
O2
6
GND
5
K2
3
A2
4
L3
Pi-Filter
L8
Pi-Filter
U29
HCPL2430
A1
1
K1
2
VCC
8
O1
7
O2
6
GND
5
K2
3
A2
4
U31
75155D
V+
8
RXI
5
TXO
7
RTC
6
GND
4
TXI
2
RXO
3
V-
1
DC41
1u
D3
L7
Pi-Filter
U32
75155D
V+
8
RXI
5
TXO
7
RTC
6
GND
4
TXI
2
RXO
3
V-
1
DC38
U30
78L05
I
1
O
3
G
2
DC40
2u2
L4
Pi-filter
DC26
LK2
1
3
5
7
2
4
6
8
DC35
U27
NMH 0512S
NO PIN
3
IP-
2
IP+
1
OP-
4
OPC
5
OP+
6
- Cable Survey System 1
- System Manual 1
- GLOSSARY 13
- AMENDMENTS 14
- 1 INTRODUCTION 16
- 1.1 SYSTEM DESCRIPTION 20
- 1.2 PRINCIPLE OF OPERATION 21
- 1.3 QUICK START FOR SDC USERS 22
- 1.4 WARRANTY 22
- 2 SYSTEM OVERVIEW 24
- 2.1 SCOPE OF DELIVERY 25
- 2.2 UNPACKING AND INSPECTION 27
- 2.3 SURFACE COMPONENTS 28
- Figure 2–3: SDC Display 29
- Figure 2–4: SDC PC Console 29
- 2.4 SUB-SEA COMPONENTS 32
- 2.4.1 Sub-sea Electronics Pod 32
- ❐ Power/comms 33
- ❐ Altimeter 33
- ❐ Aux Output 33
- ❐ Sensor 33
- 2.4.2 Sensing Coils 34
- 2.4.3 Altimeter 36
- ❐ Tracked ROVs or crawlers 37
- ❐ Trenching ploughs 37
- ❐ Towed sleds 37
- 3 PHYSICAL INSTALLATION 38
- 3.1 SDC INSTALLATION 39
- 3.2 SUB-SEA INSTALLATION 40
- 3.2.1 SEP 40
- 3.2.2 Sensing Coils 42
- 3.2.2.1 Assembling the Coils 43
- 3.2.2.2 Mounting the Coils 46
- 3.2.3 Altimeter Installation 48
- 3.3 INSTALLATION CHECK LIST 50
- 4 ELECTRICAL INSTALLATION 52
- 4.1 SUB-SEA COMPONENTS 53
- 4.1.1 Ground Connections 54
- 4.1.3 Sub-sea Electronics Pod 55
- 4.1.3.1 Power Requirement 56
- 4.1.4 Sensing Coils 58
- 4.1.5 Sub-sea Altimeter 59
- 4.1.5.2 Connection to the SDC 60
- 4.1.6 Roll/Pitch Sensor 61
- 4.2 SURFACE DISPLAY COMPUTER 62
- 4.2.1 Power Connection 62
- 4.2.4 Interface to Video 68
- 5 SYSTEM CONFIGURATION 70
- 5.1 SOFTWARE INSTALLATION 71
- 5.2 POWER-ON PROCEDURE 72
- 5.3.1 SEP type 74
- 5.3.2 Communication ports 75
- 5.4 PRINT CONFIGURATION 77
- 5 – System Configuration 78
- 6 OPERATION SOFTWARE 80
- ONFIGURATION 81
- 6 – Operation software 84
- 6.2.1.2 Run/ Display screen 87
- the centre line. Measure 89
- ❐ Communication status 90
- ❐ System time 90
- ❐ System errors 90
- 6.2.1.3 Forward Search Screen 91
- 6.2.1.4 Other Windows 93
- ❐Yellow indicates an event 95
- 6.2.1.5 Configuration Options 97
- 6.2.2 Survey Parameters 97
- 6.2.2.1 Altimeter 99
- 6.2.2.2 External Data Logging 101
- 6.2.2.3 Load Factory Defaults 102
- 6.2.2.4 Video Overlay Setup 102
- 350 Cable Survey System 105
- 6.3 AFTER THE DIVE 107
- 6.4 REPLAYING A LOG FILE 108
- 6.5 QUALITY CONTROL 110
- 7 OPERATING PROCEDURE 112
- 7.1 BEFORE THE SURVEY 113
- 7.1.2 Tone Frequency 114
- 7.1.3 Survey Requirements 114
- 7.2 DURING THE SURVEY 115
- 7.2.2 Data Logging 117
- 7.2.3 Replay Logged Data 118
- 7.3 DATA FORMATS 119
- 7.3.1 External Logging Format 119
- 7.3.1.2 Forward Search mode 121
- ❐The target is out of range 122
- 7.3.2 Internal Logging Format 123
- 7.3.3 Altimeter Data Format 125
- 7.3.3.3 Simrad UK90 127
- 7.4 AFTER THE SURVEY 130
- 7.5.1 Operating Performance 131
- 7.5.2 Sources of Error 132
- 7.5.2.1 ROV Handling 132
- Figure 7–3: ROV roll errors 134
- Figure 7–4: Sloping target 136
- ❐ Changes of ROV heading 137
- ❐ Acoustic noise 137
- Figure 7–5: Curved target 139
- 7.6 ROVS 140
- 7.6.1 Speed of Operation 140
- 7.6.3 Tracked ROV 140
- 8 SYSTEM SPECIFICATIONS 142
- 8.1 SPECIFICATIONS 143
- 8 – System Specifications 144
- 8.1.2 Sub-sea Electronics Pod 145
- 8.1.3 Search Coil Array 145
- 8.2 PERFORMANCE 146
- 8.3 SYSTEM TRIALS 147
- 8.3.2 Results 149
- 8.3.2.1 Accuracy 149
- 8.4 UPDATE RATE 150
- 9 MAINTENANCE 152
- 9.1 CIRCUIT DESCRIPTION 153
- 9.1.1 Sensing Coils 154
- 9.1.2 Sub-sea Electronics Pod 155
- 9.1.2.2 Processor Board 156
- 9.1.2.3 Power Supply 158
- 9.1.3 Current Loop 158
- Page 8 of 26 159
- 9.2.2 Sub-sea Electronics Pod 160
- ❐ A 2.5mm hexagonal key 161
- Processor Board 162
- ADC Board 163
- 9.2.3 Coil Cable Continuity 166
- 9.3 FAULT IDENTIFICATION 167
- 9 – Maintenance 168
- 9.3.2 Communications Failure 169
- Page 20 of 26 171
- 9.3.4 Altimeter Failure 173
- Page 24 of 26 175
- Page 26 of 26 177
- 10 SYSTEM DRAWINGS 178
- 10 – System Drawings 180
- A OPERATING THEORY 192
- A.1 ELECTROMAGNETIC FIELDS 193
- A.2 FIELD DETECTION 193
- A.3 SIGNAL ISOLATION 194
- A.4 CALCULATION 195
- A.4.1 Survey Mode 196
- A.4.2 Forward Search Mode 198
- A.4.3 Skew Measurement 199
- B OPTIONS 202
- B.1 DUALTRACK SYSTEM 203
- B.1.1 The Equipment 203
- B.1.2 The Differences 204
- B.1.3 Scope of Delivery 205
- B.1.4 Physical Installation 207
- B.1.4.1 Search-coils 207
- B.1.4.2 Sub-sea Pods 207
- B.1.5 Electrical Connection 208
- B.1.5.1 System Configuration 210
- B.1.5.2 System Operation 211
- B.2 TRAINING 212
- C CABLES AND TONES 214
- C.1 TONE INJECTION 215
- C.1.1 Frequency Selection 215
- C.1.2 Connection to the cable 215
- C.1.2.1 Short cables 215
- C.1.2.2 Long cables 216
- C.1.2.3 Fibre-optic Cables 216
- C.1.3 Seawater Return Path 217
- D ALTIMETER 218
- D.2 INSTALLATION 219
- D.2.1 Electrical Connection 219
- D.2.2 Serial Output 219
- D.2.3 Mounting 220
- D.2.4 Maintenance 221
- D.2.5 Test in Air 221
- D.2.6 Internal Settings 221
- D.3 THEORY OF OPERATION 222
- D.3.1 Operating Principles 222
- D.3.1.1 Speed of Sound 223
- D.3.1.2 Terminology 223
- D.3.1.3 Propagation Loss 224
- D.3.1.4 Limitations 224
- D.3.2 Technical Description 225
- D.3.2.1 Power Supply 225
- D.3.2.2 Transmitter 226
- D.3.2.3 Receiver 226
- D.3.2.4 Sensor Circuitry 227
- D.3.2.5 Digital Circuitry 227
- D.3.2.6 Averaging Algorithm 228
- D.3.2.7 Optional Modem 228
- D.4 PART NUMBERS 228
- D.5 DRAWINGS 229
- D – ALTIMETER 230
- E COIL TESTER 236
- E.1 PRE-OPERATION 238
- E.2 OPERATION 240
- E.2.1 Frequency Selection 242
- E.3 FAULT IDENTIFICATION 243
- E.4 BATTERY REPLACEMENT 243
- E.5 MAINTENANCE 244
- E.6 SPECIFICATION 244
- F REFERENCE 246
- F.1 SURVEY DETAILS 248
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