Sailor SC4000 Iridium Technical Manual - 2.3.1 Scanbus Termination
6
Installation
IRIDIUM
Cable 5
Description of connections to T-connection H4196
(optional accessory)
The wire terminal blocks are connected in parallel.
36090
Cable 6
GPS input
Cable:
9*0.22 mm
2
shielded
shield connected to ground
Cable connector type:
9 pole sub-d male
Mk2 & Mk3
MK4
1
NC*
External Ringer
2
PC Rx (RS232) PC Rx (RS232)
3
PC Tx (RS232)
PC Tx (RS232)
4
NC*
NC*
5
GND (RS232)
GND (RS232)
6
NC*
NC*
7
NMEA+
NMEA+
8
NMEA-
NMEA-
9
NC*
NC*
shield
GND
GND
Transceiver
Description
* Do only connect a standard RS232 terminal cable. If only
NMEA needed, then do not connect to other pins than 7
and 8.
0514
2.3.1 Scanbus Termination
The scanbus connecting the transceiver and the control
units, has to be terminated. Only the first and last unit on
the bus shall have the termination in ON position.
The termination in the transceiver unit is done by setting
the jumper S3, located near the scanbus terminal on the
PCB (see figure below). As default, the jumper S3 is set
ON.
C208
R154
R193
R208
V38
C142
C4
R189
C128
R165
R107
R124
R170
C12
X3
R172
V36
C14
N10
C156
N11
C9
R10
C17
R142
R197
V49
V45
R130
R34
Z10
C169
Z8
N1
R174
C3
R1
R101
C218
R55
V17
R51
C67
C162
C152
C105
C107
C200
R206
R79
R96
C224
R145
R120
R183
R108
C207
R125
R88
R84
C72
R4
R118
R100
R121
C175
R106
R191
V31
R78
C38
R53
C5
C114
R46
R98
C75
C136
C27
R99
C143
R60
V20
R58
R54
R209
V14
R52
Z9
C35
V65
R171
V37
C199
C192
C138
C65
C61
D16
Z12
C141
Z11
R123
C113
C108
C62
R134
C172
Z13
X5
C77
V48
C78
C140
C154
X8
D6
C66
C119
C124
C118
C120
R219
R12
C196
R11
C32
X2
C57
R25
D12
C197
V53
L7
V15
V42
R37
R136
V39
V46
C33
V52
C116
N6
C69
R80
R81
C63
R144
N7
R177
N4
V66
V62
C149
C28
C211
C206
N9
C153
C36
C151
V64
V47
R203
R178
C112
C104
R182
R179
R147
R138
R192
R204
R190
C129
R140
C209
C210
V61
R35
R199
V68
L5
V55
R133
C185
V43
R137
V54
T2
V51
V50
R131
R139
R188
V32
C126
R194
R143
R207
C145
R200
V56
R196
V67
R214
C159
R211
R212
C73
R148
V33
R62
V26
V11
V27
C25
V12
R217
R15
R97
N15
C204
V60
R198
V57
R104
C125
C99
C49
R92
C181
R112
C186
C188
C161
R114
R91
R87
R115
C182
C190
R150
C191
R94
C173
C174
R86
C205
C48
R113
C189
C148
C53
R90
C187
R116
R117
N12
N2
C176
C178
R89
C55
R149
C167
R93
C6
C170
C11
R169
C31
C150
R225
R166
C115
C193
R167
C155
C109
R43
R83
N5
C68
N8
D9
R6
C147
R38
Z3
C86
C106
R39
R220
R119
R40
R151
C103
R13
R152
R185
C177
C217
C110
R216
D4
C132
C131
D8
C135
C2
V13
R24
R32
R47
C130
V28
D10
C134
Z6
C137
C16
R59
V16
R110
C139
C51
R42
R50
R218
D5
S1
N13
V77
C223
C111
C101
C171
C74
R224
C158
R2
C226
R155
C225
R168
C230
C22
C194
V19
C220
N14
C219
C236
R22
C157
C213
R135
C98
R221
C234
V75
D1
C102
V1
V71
X4
X9
X7
C127
R213
V63
C100
R36
V41
R210
R141
R184
V30
V44
V35
R215
C216
V40
C117
T1
C160
C168
C146
C179
L4
F1
T3
C29
C64
R195
C144
C232
C122
C121
C212
C123
V34
C231
C233
C229
C39
R57
C97
C95
Z38
C96
Z41
Z39
C227
C228
Z35
C93
C94
C76
Z36
Z42
Z40
Z37
R109
C52
C40
C133
R103
R3
C13
Z4
R236
R235
D7
R105
V74
S2
C34
R7
R8
V76
R5
C163
R33
C60
R246
X12
V82
V78
V79
V81
C50
R31
C7
C1
R21
R27
R20
R30
R26 R248
R242
R247
R231
R232
D3
C19
C8
Z15
C90
C15
C88
C89
R14
C54
C18
V3
V2
V4
V7
C59
R245
R244
R240
D14
R239
C43
C37
X10
R23
C56
C23
C10
R85
V5
V6
C20
C84
R175
R156
R29
R28
C184
C183
C166
C180
C24
C41
R66
Z16
C26
R77
R128
Z14
S3
R19
R162
C85
R16
R17
N16
V21
R230
R9
V80
R44
R41
Z2
D17
C21
C30
X6
R48
C92
D18
R45
R18
D15
D26
C165
S5
S4
R61
C198 R49
R56
C195
D2
C164
C42
C91
C44
R233
R234
R64
R237
R63
S6
3
86
3
8A
S3
C1
34
R
55
The termination in the control unit is located on the PCB
in the cradle as jumper S1 (see figure below). As default
the jumper S1 is set ON.
38637
S1
ON
OFF