Güralp DM24 MkIII Manual

Güralp DM24 MkⅢ
Operator’s Guide



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&'("")*+
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!"#+Ⅲ(
Table of Contents
1 Preliminary Notes............................................................................................................8
1.1 Proprietary Notice.......................................................................................................8
1.2 Cautions and Notes....................................................................................................8
1.3 Manuals and Software................................................................................................8
1.4 Conventions................................................................................................................8
2 Introduction......................................................................................................................
2.1 Features....................................................................................................................10
3 Installing the DM24........................................................................................................12
3.1 Power supplies.........................................................................................................12
3.2 Connectin sensors..................................................................................................12
3.3 Connectin external hardware.................................................................................13
3.3.1 FireWire disks....................................................................................................13
3.4 The DM24BH borehole di itiser...............................................................................15
4 Using the DM24..............................................................................................................16
4.1 Taps..........................................................................................................................16
4.1.1 Tri erin ...........................................................................................................17
4.2 Streams....................................................................................................................17
4.2.1 Di itisers for multiple instruments.....................................................................18
4.3 Transmission modes.................................................................................................19
4.3.1 DIRECT.............................................................................................................20
4.3.2 FILING...............................................................................................................20
4.3.3 DUPLICATE.......................................................................................................21
4.3.4 DUAL.................................................................................................................22
4.3.5 FIFO (First In First Out).....................................................................................22
4.3.6 Transmission mode summary...........................................................................24
4.4 Bufferin modes........................................................................................................24
4.4.1 RE-USE / RECYCLE.........................................................................................24
4.4.2 WRITE-ONCE...................................................................................................25
 

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4.5 Downloadin stored data..........................................................................................25
4.5.1 Downloadin over FireWire...............................................................................26
4.5.2 Readin DM24 disks.........................................................................................26
4.5.3 Downloadin over the serial link.......................................................................29
4.6 DM24 USB Host Operations....................................................................................31
4.6.1 DM24 Mk3 USB host option..............................................................................31
4.6.2 Formattin a USB device..................................................................................32
4.6.3 Directory structure.............................................................................................32
4.6.4 System operation..............................................................................................33
5 Using Scream!................................................................................................................35
5.1 Confi urin di itisers................................................................................................35
5.1.1 System ID..........................................................................................................36
5.1.2 Output control....................................................................................................37
5.1.3 Tri erin ...........................................................................................................40
5.1.4 STA/LTA – Tri erin by avera e values..........................................................41
5.1.5 Level tri erin ..................................................................................................46
5.1.6 External tri erin .............................................................................................46
5.1.7 Pre-tri er and post-tri er recordin ...............................................................47
5.1.8 Mux Channels...................................................................................................47
5.1.9 Ports..................................................................................................................49
5.2 Controllin di itisers.................................................................................................50
5.2.1 System...............................................................................................................50
5.2.2 Tri erin ...........................................................................................................51
5.2.3 Calibration.........................................................................................................52
5.2.4 Mass Control.....................................................................................................53
5.2.5 Data flow...........................................................................................................54
6 Command line interface................................................................................................56
6.1 Introduction...............................................................................................................56
6.1.1 FORTH..............................................................................................................56
6.2 Gettin help..............................................................................................................57
6.2.1 HELP.................................................................................................................57
6.2.2 EXPLAIN...........................................................................................................58
6.3 General confi uration...............................................................................................58
6.3.1 SET-ID...............................................................................................................58
6.3.2 SERIAL2............................................................................................................59
6.3.3 RESETLABELS.................................................................................................59
6.3.4 SENSOR-TYPE.................................................................................................59
6.3.5 AZIMUTH...........................................................................................................59
6.3.6 CROSS..............................................................................................................60
6.4 GPS, GNSS and timin ............................................................................................60
6.4.1 GPS-TYPE........................................................................................................60
6.4.2 HR-CYCLE........................................................................................................61
 & 

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6.4.3 SET-CLOCK......................................................................................................61
6.4.4 TIME?................................................................................................................62
6.4.5 etWNROpivot..................................................................................................62
6.4.6 setWNROpivot...................................................................................................62
6.4.7 LEAPSECOND..................................................................................................62
6.4.8 SQPATCH..........................................................................................................63
6.5 Port confi uration.....................................................................................................63
6.5.1 BAUD.................................................................................................................63
6.5.2 STOPBITS.........................................................................................................64
6.5.3 +MODEM...........................................................................................................64
6.5.4 –MODEM...........................................................................................................65
6.5.5 +GCFIN.............................................................................................................65
6.5.6 –GCFIN.............................................................................................................66
6.5.7 OPEN................................................................................................................66
6.5.8 USBPORT.........................................................................................................66
6.6 Output confi uration.................................................................................................67
6.6.1 SAMPLES/SEC.................................................................................................67
6.6.2 CONTINUOUS..................................................................................................67
6.6.3 SET-TAPS.........................................................................................................68
6.6.4 COMPRESSION...............................................................................................68
6.6.5 LOWLATENCY..................................................................................................69
6.6.6 SETDSS............................................................................................................70
6.7 Variable Gain............................................................................................................71
6.7.1 *GAINS..............................................................................................................71
6.7.2 *GAIN................................................................................................................71
6.8 Tri erin ..................................................................................................................72
6.8.1 TRIGGERS........................................................................................................72
6.8.2 GTRIGGERS.....................................................................................................72
6.8.3 S/WTRIGGER...................................................................................................72
6.8.4 TRIGGERED.....................................................................................................72
6.8.5 STA....................................................................................................................73
6.8.6 LTA.....................................................................................................................73
6.8.7 RATIOS.............................................................................................................74
6.8.8 FRATIOS...........................................................................................................74
6.8.9 BANDPASS.......................................................................................................74
6.8.10 MICROG..........................................................................................................75
6.8.11 HIGHPASS......................................................................................................75
6.8.12 PRE-TRIG.......................................................................................................75
6.8.13 POST-TRIG.....................................................................................................75
6.8.14 TRIGGERIN.....................................................................................................76
6.8.15 TRIGGEROUT................................................................................................76
6.8.16 POLARITY.......................................................................................................76
6.9 Calibration.................................................................................................................77
6.9.1 SINEWAVE........................................................................................................77
6.9.2 SQUAREWAVE.................................................................................................77
6.9.3 RANDOMCAL...................................................................................................78
6.9.4 MINUTE.............................................................................................................78
6.9.5 %AMPLITUDE...................................................................................................79
6.9.6 AUTOCAL..........................................................................................................79
  

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6.9.7 AUTOCAL?........................................................................................................79
6.9.8 -AUTOCAL........................................................................................................80
6.10 Actions....................................................................................................................80
6.10.1 LOCK...............................................................................................................80
6.10.2 UNLOCK.........................................................................................................80
6.10.3 CENTRE..........................................................................................................80
6.10.4 MASSES?.......................................................................................................81
6.10.5 %AUTO-CENTRE...........................................................................................81
6.10.6 O/SNULL.........................................................................................................81
6.10.7 RE-SYNC........................................................................................................81
6.10.8 ?LITHIUM........................................................................................................82
6.10.9 RE-BOOT........................................................................................................82
6.11 Data stora e and transmission...............................................................................82
6.11.1 SHOW-FLASH.................................................................................................82
6.11.2 RESET-FLASH................................................................................................83
6.11.3 ERASEFILE.....................................................................................................83
6.11.4 EVENTSLIST...................................................................................................84
6.11.5 RESET-LIST....................................................................................................84
6.11.6 DIRECT...........................................................................................................85
6.11.7 FILING.............................................................................................................85
6.11.8 DUPLICATE.....................................................................................................85
6.11.9 DUAL...............................................................................................................85
6.11.10 ADAPTIVE.....................................................................................................85
6.11.11 FIFO...............................................................................................................86
6.11.12 HEARTBEAT.................................................................................................86
6.11.13 MS-GAP.........................................................................................................86
6.11.14 RE-USE.........................................................................................................87
6.11.15 WRITE-ONCE...............................................................................................87
6.11.16 MODE?..........................................................................................................87
6.12 Downloadin over the serial port............................................................................87
6.12.1 DOWNLOAD...................................................................................................87
6.12.2 ALL-FLASH.....................................................................................................88
6.12.3 ALL-DATA........................................................................................................88
6.12.4 STREAM.........................................................................................................89
6.12.5 STATUS-ONLY................................................................................................89
6.12.6 S/S...................................................................................................................89
6.12.7 ALL-TIMES......................................................................................................89
6.12.8 FROM-TIME....................................................................................................89
6.12.9 TO-TIME..........................................................................................................90
6.12.10 EVENTS........................................................................................................90
6.12.11 GO.................................................................................................................91
6.12.12 END-DOWNLOAD........................................................................................91
6.13 Downloadin over FireWire....................................................................................91
6.13.1 DISKMENU.....................................................................................................91
6.13.2 MBTRANSFER................................................................................................92
6.13.3 DIR..................................................................................................................94
 0 

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7 Inside the DM24.............................................................................................................. 5
7.1 State of health information.......................................................................................95
7.1.1 Heartbeat messa es.........................................................................................95
7.1.2 Status blocks in continuous mode....................................................................97
7.2 GPS and Synchronisation........................................................................................99
7.2.1 Overview............................................................................................................99
7.2.2 Leap-seconds..................................................................................................100
7.2.3 Week-number roll-over....................................................................................100
7.2.4 Multiple re-synchronisation events..................................................................101
7.3 Updatin firmware..................................................................................................103
7.3.1 Updatin firmware usin an EAM, Affinity or NAM.........................................103
7.3.2 Updatin firmware with Scream!.....................................................................103
7.4 Settin up external tri erin .................................................................................106
7.4.1 Overview.........................................................................................................107
7.4.2 Tri erin your own equipment.......................................................................108
7.4.3 Usin an external tri er source.....................................................................109
7.4.4 Tri erin several Güralp instruments simultaneously...................................110
7.5 Technical details......................................................................................................112
8 Güralp Compressed Format.......................................................................................114
8.1 GCF blocks.............................................................................................................114
8.1.1 The GCF header..............................................................................................114
8.1.2 The GCF body.................................................................................................116
8.2 Sendin GCF streams over a network...................................................................116
8.2.1 Initiatin a connection......................................................................................117
8.2.2 Data packets....................................................................................................117
8.2.3 Recoverin missin data.................................................................................118
8.3 Sendin GCF streams over a serial link.................................................................118
8.3.1 The transport layer..........................................................................................119
8.3.2 ACK and NACK si nals...................................................................................119
Connector pin-outs......................................................................................................121
9.1 SENSOR A and B ports..........................................................................................121
9.2 AUXILIARY port......................................................................................................122
9.3 GPS Port.................................................................................................................123
9.4 DATA IN port...........................................................................................................124
9.5 FIREWIRE port.......................................................................................................125
9.6 USB port.................................................................................................................126
9.7 DATA OUT port.......................................................................................................127
 1 

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10 Digitiser specifications.............................................................................................128
11 Revision history.........................................................................................................130
 - 

!"#+Ⅲ*"
1 Preliminary Notes
1.1 Proprietary Notice
233## !"#$%#
"##""43
#5
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33 !"#$%#"#"
"""7""335
1.2 Cautions and Notes
(#"8""4
Caution:""4"3"
37#335
Note:""#")5
1.3 Manuals and Software
"""43)""3 !"#
$44445"#5"345
1.4 Conventions
2333"9#")"53
9#"8943#4""
Example of the fixed-width typeface used.
(37#4""34"
Example of the fixed-width, bold typeface.
633#)#)"83
#3""34"
Example of the fixed-width, bold, italic typeface.
*33"9#"
System prompt: user input with variable parameters
 . 

!"#+Ⅲ
2 Introduction
23 !"#"3"3""
5##")"
 " ""4394"5
()" " 89#3"# !"#
523##"434
8 !"#2&2
&/$*235
!"#02")""343
35"83
:"""
)""4#
#")"#5
"##"43/
;/7<#"
";"""<
)5
 = 

!"#+Ⅲ
>333)3/:4
"523"/&)""3 !"#4
###3335
23"##"3"43#""
523#"""333
33""#5
,"8""3)#?
"@""75
2.1 Features
•""$"*;$*<433#)"
"#"#"""5"#"
3#)""#"
#"#5
•##""3@3"
"();(<3$*43""#)#
"+5
  

!"#+Ⅲ
•23@3 *$)5
•,#433
01?+A,5
•/83 !"#(#>
; (><5
•,$&#""#""43
""5
•$##8"""+
"+"5
•%4#4#5
•>"3//*,B#8"85
•'3#"4"###"8"43
;#""<C"5
•""3#)#
#D?5&&?E(43"D?50?E(5
•B#">"35
•B#"///?&=>6""44" (>
"#"+#"#"3+3>6
3#3#""
%(5
•B#"$A"*(3
)5
234 !"#9""#9
)""933$/$B,?$/$B,?A
5;$"3)"$/$B,?
<5$"3@#""
+'@5#3332B2"#33
F9" (>3*( !"#"3 !"#/5
  

!"#+Ⅲ""3
3 Installin the DM24
3.1 Power supplies
23##4" 2B2 #523 !"#
#"G#4"433
 !"#$#(AA&1523"#"
43,$&*((B#"$A)5
H"(#4##"5
3.2 Connectin sensors
23843 !"#$+433
"3 $/$B,  $/$B,A #538
3"+343###I3
###433"")"#
""523 J%,K #""4@
)"# 55 ""##"3
85
4#3 J%,K #""4#"3
""3"3:J:3"5233"""@
"#43"333
3""4343
##3:(:3"563")333"
@39"5
#343DH"""
#3"#35K4""+#"
3")#3 $/$B,  A #;<5$
$=5#"35
3)"3"33 $/$B, #"
3#""; 55 "+"+<5
23 $/$B,A #3"4337
""3 !"#"3 !"#12
0"5233""
3;$&<3) $/$B,A #5
  

!"#+Ⅲ""3
3.3 Connectin external hardware
B"3"#"3##3
"#
23332B2#523,$&#"
""+# (>3#"8
35233"&.5K33
3"3BAUD !"#$:"
74#+$L;(3#0#&0<5
 *$ "#)3#"3 !"# *$
)5
23 2 #3:")"
"+#" (>5
>""3##"43#"$A"
*(5633#3 $A ##"
3 2B2 "###""#
#5K8433##"3";
(3#1#<5
3.3.1 FireWire disks
23#"///5&=;M>6N<#34"
#"3+523##"343>6
43"#8#";$=50
#0#"<5
 & 

!"#+Ⅲ""3
A3+4""523)3
3+#">  *(:#
"3+5
K3"$L (>J43+523
)8;3+<"3"5>
$L (>J#"334
#+3"3"#5
2>6+433
5 *4#3#:"#5
5 B#""523 !"#$:$L
43"+3:; <"Terminal…5>
!"#/3
data-terminal
"3")35
&5 3DISKME U5K4""3
Plug in FireWire cable
5 *"+5234""#;3"<
3+5
05 6339- #+#3+5
  

!"#+Ⅲ""3
15 O 3+5
-5 633#")3+5
K4""4"4"3+4375
3.4 The DM24BH borehole di itiser
6333"##"43
""3#33"523+3""
343"#)3
7#5
23#)
• $/$B, 4"#8+
" *$#43I
• *$ 3 *$)I
• *B6/,G'B%/%B(O 4333
&H"(#4##"33"
;"<'""+(")3:
3""+5"#433""+
""I33""+3")3'"
"+(""33)5
•B3)#"
#)*($L333
""5
•23"3#G"#"433#4343"
0H"(##"75
 0 

!"#+Ⅲ3
4 Usin the DM24
B37#4""#
"5K4845234
43
•3#3"#)$L
•)";(3#1#01<5
A33#)""3C8#35
4""$L#35>#"
34$L8"#"
3$L5
4.1 Taps
23)"""33#"433
3#523#+4  3#
"" # 52#@333#"#45
23333#"G523"
#2#38#52#")"#0
#"G5
2#33#5/3###"
4330."433#)#5
>9#"3""4#"7
•2#0#"G
•2#0#"G;)<
•2##"G;)0<
•2#&0#"G;)<
23"4""#"3)#
35K8##5K"3)#
8#5
""38#"3)$L3
"SET-TAPSCO TI UOUS5
 1 

!"#+Ⅲ3
4.1.1 Tri erin
233F9"5633
#""#; % 5&#<"
5###3"5
39#")383#2#;
#"G<"43"#2#;0
#"G<4""5
3"#"#43
)"5
23"+3#3
"#433#5633#3#3
743)5
23#5
• %/H/% 433"#")"98
)"5
23GTRIGGERSMICROGHIGHPASS" %/H/% 5
• $2G%2 4333)"
)98)"5
23TRIGGERSTRIGGEREDSTALTARATIOSBA DPASS
" $2G%2 5
• 4 433S/WTRIGGER5
• 9" 439"7#""""
35$0551#1"5
23##3
3523PRE-TRIGPOST-TRIG3
#5
2#"833$L5
4.2 Streams
23@3#5/331
3852383+3 $" 3
5;"333"" $" 3
43$L"5<
23933###
 - 

!"#+Ⅲ3
•Z E3)"3G3G4#
#)"5
•X33""3"433#)
47#)3 J%,K ;#<5
•C3"#3"433#"3X43"
"#5
•M33"49;"#"9<3"5233
;M8M9MA<#3#5(3"MC
MD3JK9343""43
85
•>Z EXC3"3#3##52#
#3#433""4
3#)"""523
#&I3333&3"45
0246#&#)"5
83#34""##
#433"GIKM#&
#)"5
23"00523
"#"9;$-5#=0<5
4.2.1 Di itisers for multiple instruments
233""3"##9"
#"39""3"5
$"+4M13"N434
""3# $/$B,  $/$B,A 5
23""3)-""3""3
9"G"3"563""33
"#35""-3"333
##5
 . 

!"#+Ⅲ3
13"4""#""433""48"
3
Z/N/E0
$/$B, # Z/N/E1 $/$B,A #
Z/N/E2
$/$B, # Z/N/E $/$B,A #
Z/N/E4
$/$B, # Z/N/E5 $/$B,A #
Z/N/E6
$/$B, #& Z/N/E7 $/$B,A #&
Z/N/EG
$/$B, #

Z/N/EH
$/$B,A #

Z/N/EI
$/$B, #

Z/N/EJ
$/$B,A #

Z/N/EK
$/$B, #

Z/N/EL
$/$B,A #

Z/N/EM
$/$B, #&

Z/N/EN
$/$B,A #&

X/C0 9"#
X/C2 9"#
X/C4 9"#
X/C6 9"#&
$13"3)3393"3&3"
#M8M9MA3#$/$B,MBMF
47#52343
#33$/$B,A9#3
#3523""7)"3J
3"$/$B,A5$/$B,A"+"+
5
4.3 Transmission modes
2##3523
4333>"3
3)3""+ (>
35
K43443";3#
1#01<3$L85
 = 

!"#+Ⅲ3
4.3.1 DIRECT
(DIRECT
3>"35""
""5 ,/(2 ""33 (>
A"+,)*"#,"43"3"01"+
"")"+75
9#+43""
301"+4 3 3"+
;33"3"7"+<3"

• *2H/ 4"#";
"+)<
• >>B "+);
3+43"3#"<5
4.3.2 FILING
(FILI G
  