130-gps/01 clock

130-GPS/01 130-TR-003-C January 30, 2006

130 Family of Seismic Recorders

130-GPS/01Clock

Refraction Technology™

ii 13

© Copyright 2003-2006 Refraction Technology, Inc.

All rights reserved.

Printed in USA

Refraction Technology, Inc.1600 Tenth Street, Suite APlano, Texas 75074USA

Voice: 214-440-1265Fax: 972-578-0045EMAIL: [email protected]: ftp.reftek.comWWW: http://reftek.com

0-TR-003-C 130-GPS/01

Preface

The REF TEK 130-GPS/01 clock is capable of providing both time and position information, serially, for host systems in the REF TEK 130 series Data Acquisition System family.

Update Notification

You can receive E-mail notification of updates by subscribing to one of the REF TEK 130 notification lists.

To subscribe:

1 Send an E-mail to [email protected] with one of the following in the body of the message: “subscribe <listname> <your name> where <list name> is one of the entries in the following table and <your name> is replaced by your name.

2 Your E-mail address is automatically extracted from the header of the E-Mail you send.

3 To obtain updates from out FTP site:

DAS <listname> example

130 rt_130 subscribe rt_130 tom smith

130_ANSS rt_130_anss subscribe rt_130_anss john doe

130_SM rt_130_sm subscribe rt_130_sm mike smith

130_SMA rt_130_sma subscribe rt_130_sma tom smith

For REF TEK software, firmware, and documents:

[1] Login to our FTP site at: ftp.reftek.com\pub

[2] User name: Anonymous

[3] Password: Your E-mail Address

130-GPS/01 130-TR-003-C iii

iv 13

Revision History:

Rev Date Reason for change Affected Pages0.1 7/05/03 Initial release All

A 7/08/03 Created new GPS-0/1 All

B 8/1/03 Created new separate book for GPS-0/1 All

C 8/1/04 Added Garmin 15H GPS module option Section 3

Added warning about GPS mounting All

Added shielding grommet Section 3 and 4

0-TR-003-C 130-GPS/01

Notation ConventionsThe following notation conventions are used throughout Ref Tek documentation:

Notation DescriptionASCII Indicates the entry conforms to the American Standard Code for Information Interchange

definition of character (text) information.

Binary Indicates the entry is a raw, numeric value.

Hex Indicates hexadecimal notation. This is used with both ASCII characters (0 – 9, A – F) and numeric values.

BCD Indicates the entry is a numeric value where each four bits represents a decimal digit.

FPn Indicates the entry is the ASCII representation of a floating-point number with n places fol-lowing the decimal point.

<n> Indicates a single 8-bit byte. When the contents are numeric, it indicates a hexadecimal numeric value; i.e. <84> represents hexadecimal 84 (132 decimal). When the contents are capital letters, it represents a named ASCII control character; i.e. <SP> represents a space character, <CR> represents a carriage return character and <LF> represents a line feed character.

MSB Most Significant Byte of a multi-byte value.

MSbit Most Significant Bit of a binary number.

LSB Least Significant Byte of a multi-byte value.

LSbit Least Significant Bit (bit 0) of a binary number.

YYYY Year as a 4-digit number

DDD Day of year

HH Hour of day in 24-hour format

MM Minutes of hour

SS Seconds of minute

TTT Thousandths of a second (milliseconds)

IIII Unit ID number

n, nS nano, nanoSecond; 10-9 = 0.000000001

u, uS micro, microSecond; 10-6 = 0.000001

m, mS milli, milliSecond; 10-3 = 0.001

K, KHz Kilo, KiloHertz; 103 = 1,000

M, MHz Mega, MegaHertz; 106 = 1,000,000

G, GHz Giga, GigaHertz; 109 = 1,000,000,000

Kb, KB Kilobit, KiloByte; 210 = 1,024

Mb, MB Megabit, MegaByte; 220 = 1,048,576

Gb, GB Gigabit, GigaByte; 230 = 1,073,741,824

130-GPS/01 130-TR-003-C v

vi 13

Related Manuals:

130-01 System Documents Number PDF file130-01 System Startup 1301-SYS-001 130_startup_01.pdfPFC_130 Users Guide 130-PFC-001 130_pfc.pdf

REF TEK Utilities Users Guide UTILS-OP-002 130_utilities.pdf

Archive Utilities ARC-OP-003 arcutil.pdf130 Theory of Operations 130-SYS-002 130_theory.pdf130 PFC Release Notes 130-RN-001 130_PFCRN.pdf130 CPU Release Notes 130-RN-002 130_CPURN.pdf130 Command Reference 130-CR-001 130_command.pdf130 Recording Format 130-RF-001 130_record.pdf130-GPS/01 130-TR-003 gps01.pdf

130-01 Board Documents Number PDF fileRT505 - A/D Board 130-RT505 RT505r.pdfa

RT506 - CPU Board 130-RT506 RT506r.pdfRT520 - Lid Interconnect Board 130-RT520 RT520r.pdfRT526 - MicroDrive/Flash Board 130-RT526 RT526rB01.pdfRT527 - Sensor Control Board (Optional) 130-RT527 RT527rB01.pdfRT535 - Mass Memory Board (Optional) 130-RT535 RT535rB01.pdf

Optional Manuals Number PDF fileSNDP Installation and Users Guide SNDP-S-003 SNDPUser.pdfSNDP Reference Guide SNDP-S-002 SNDPRef.pdfRTCC REF TEK Command and Control Users Guide

RTCC-S-006 RTCC.pdf

RT_Display Users Guide RTD-S-007 RTDisplay.pdfRT_View Users Guide RTV-S-005 RTView.pdfRTPMonitor Installation and Users Guide RTPM-S-008 RTPM.pdfRTPD Installation and Users Guide RTPD-S-005 RTPD.pdfRTP Protocol RTP-S-004 RTP.pdf131A-01/3 Standard Triaxial Accelerometer131A-01/2 Low Noise Triaxial Accelerometer

131A-TR-004 131A.pdf

131A-01/1 Uniaxial Accelerometer 131A-TR-005 131A011.pdfa. r = Revision level of 130 Board

0-TR-003-C 130-GPS/01

About this manual:

This 130 cable manual provides detailed information for the use of the 130-GPS/01 with the REF TEK 130 DAS family.

Software Version:

Current software and documentation is available on our web site. Some early units may require hardware modifications to use the latest software. Contact REF TEK if you have any queries on the compatibility of your unit(s) and the current software release.

130-GPS/01 130-TR-003-C vii

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30-TR-003-C 130-GPS/01

Table of Contents
Section: 1 130-GPS/01 Overview . . . . . . . . . . . . . . . . . . .1
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.2 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21.3 Operating the 130-GPS/01 System . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.3.1 Setting up the System . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31.4 GPS Mounting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.4.1 Recommend 130-GPS/01 mounting guidelines . . . . . . . . . . 1-41.4.2 Recommended pole mounting steps . . . . . . . . . . . . . . . . . 1-41.4.3 Permanent Mounting Procedure . . . . . . . . . . . . . . . . . . . . 1-51.4.4 Temporary Mounting Procedure . . . . . . . . . . . . . . . . . . . . 1-61.4.5 Ground Placement of GPS Unit . . . . . . . . . . . . . . . . . . . . . 1-6

Section: 2 SiRF GPS Module . . . . . . . . . . . . . . . . . . . . . . .72.1 SiRF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-72.2 µ-Blox Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-82.3 Specifications for GPS w/ SiRF . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

2.3.1 Time Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-92.3.2 130 GPS System Components . . . . . . . . . . . . . . . . . . . . . 2-92.3.3 130-GPS/01 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14

2.4 RT548 GPS Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-152.4.1 Primary Functions of the RT548 GPS Interface Board . . . . .2-152.4.2 RT548-B01 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-162.4.3 RT548 Board assembly . . . . . . . . . . . . . . . . . . . . . . . . . .2-182.4.4 RT548 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-192.4.5 Electronic Operations of the RT548 . . . . . . . . . . . . . . . . . .2-202.4.6 µ-blox™ Board and Antenna . . . . . . . . . . . . . . . . . . . . . .2-212.4.7 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22

Section: 3 Garmin 15H Module . . . . . . . . . . . . . . . . . . . .253.1 Garmin Module Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-253.2 Specifications for Garmin GPS . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26

3.2.1 Time Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-263.2.2 130 GPS System Components . . . . . . . . . . . . . . . . . . . . .3-263.2.3 130-GPS/01 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .3-31

3.3 RT552 GPS Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-323.3.1 Primary Functions of the RT552 GPS Interface Board . . . . .3-323.3.2 RT552-B01 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-333.3.3 RT552 Board assembly . . . . . . . . . . . . . . . . . . . . . . . . . .3-353.3.4 RT552 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-363.3.5 Electronic Operations of the RT552 . . . . . . . . . . . . . . . . . .3-373.3.6 Interface cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-38

130-TR-003-C ix

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130-TR-003-C

Section 1130-GPS/01 Overview

1.1 Overview

This Section explains the REF TEK 130-GPS/01 clock sys-tem when it is used with the REF TEK 130 family. The 130-GPS/01 clock system can have either of two receiver boards:

• SiRF µ-Blox receiver module• Garmin receiver module (Orange Ring)

A user should be familiar with whatever REF TEK host systemis in current use. Documents for other REF TEK products areavailable on request.

The REF TEK 130 will report three states for the 130-GPS/01:

Status of the GPS is shown on the LCD as:

• SLEEP - when GPS is asleep• SRCH - when the GPS is awake but not locked• LOCK - GPS is awake and locked• MinSLL- Minutes since last locked

Note: If an Orange ring is present on the connector ring nut of the GPSbody refer to “Specifications for Garmin GPS” on page 3-26 forinformation on the Garmin module, otherwise see the “µ-BloxOverview” on page 2-8 for GPS units equipped with the SiRF module.

ASLEEP The 130 has commanded the 130-GPS/01 to go to the Push to fix™ mode.SEARCH The 130 system has awakened the 130-GPS/01 and is waiting for it to

report that it is locked.LOCKED The 130-GPS/01 is locked.

130-GPS Users Guide 130-TR-003-C 1-1

System Overview

1.2 System Overview

The REF TEK 130-GPS/01 clock which is shown below, iscapable of providing both time and position information, seri-ally, for host systems in the REF TEK 130 Series Data Acquisi-tion System family.

Each 130-GPS/01 is a self-contained unit. The unit is designedaround the receiver module. The receiver board is based oneither the SiRF star I/LX™ chipset or Garmin unit. The antennais mounted on the inside top of the case and the whole unit issituated so that the antenna has clear overhead exposure. Asingle interface connector is located at one end of the case. The130-GPS/01 can be powered by 12 VDC from the host systemand supplies the time and position information serially to thehost system together with a 1 Hertz pulse. The SiRF starreceiver board has a 5 VDC option as well.

Figure 1 - 1 130-GPS/01

1-2 130-GPS Users Guide 130-TR-003-C

Operating the 130-GPS/01 System

1.3 Operating the 130-GPS/01 SystemThis section provides general procedures for setting up and

operating the REF TEK 130-GPS/01 clock.

1.3.1 Setting up the System

Mount the GPS unit with an unobstructed view of the sky.Notice that the direction arrow on the front of the 130-GPS/01case (near the connector) needs to point up when the unit ismounted. Dense wood and metal structures interfere with thesatellite signals. Heavy snow cover may also reduce the antennasignal. Refer to the “GPS Mounting Procedure” on page 1-4.

If the unit is located near a radar installation or satellite equip-ment, ensure that it is positioned outside the cone of transmis-sion. For best results, locate the unit below and at least ten feetaway from any satellite communication equipment.

Connect the GPS clock to the host unit, any 130 series DAS,using one of the standard REF TEK 130-8015 cables suppliedwith the GPS unit, these cables are available in seven differentlengths (see drawing). Connectors at both ends are the same(PTO7A12-8S).

The REF TEK 130-8015 GPS-to-DAS cable referred to above iswired as follows:

No additional cables are needed to operate the GPS clock andREF TEK 130. The user should consult applicable literature forother host devices.

GPS Connector to (PT07A12-8S)

130 - GPS/01 Connector (PT07A12-8S)

Signal (w/ respect to GPS)

PIN A PIN A 1 Hz out

PIN B PIN B Ground

PIN C PIN C GPS_RX

PIN D PIN D Ground

PIN E PIN E GPS_TX

PIN F PIN F +12V DC in

PIN G PIN G Reset in

PIN H PIN H +5V DC in

1-3

GPS Mounting Procedure

1.4 GPS Mounting Procedure

1.4.1 Recommend 130-GPS/01 mounting guidelines

The 130-GPS/01 can be permanently mounted using a U-boltfastener, temporarily mounted using tie-wraps, or place atground level in an unobstructed field of view.

No matter which mounting type is used the following guidelines should be implemented for best possible satellite signal:

1. The 130-GPS/01 should be placed in the up right position,which is indicated by the arrows on the front and back ofthe unit.

2. Mount the GPS unit with the arrows facing up with an unob-structed overhead view. Dense wood and metal structuresinterfere with the satellite signals. Heavy snow cover mayalso reduce the antenna signal.

3. A minimum of 15-degree line of sight from the horizonshould be kept at all times.

4. If the GPS unit is located near a radar installation or satel-lite equipment, ensure that it is positioned outside the coneof transmission. For best results, locate the unit below andat least ten feet away from any satellite communicationequipment.

1.4.2 Recommended pole mounting steps

If the GPS unit is mounted on a pole suggested steps should be taken to insure best possible signal.

1. The pole should not be made from metal because the metalmay interfere with the signal.

2. If a metal pole cannot be avoided then two pole-to-poleadaptor brackets should be mounted a minimum of 12”below the top. Then a PVC 1 ½ ” (2” Nominal O.D.) sched-ule 40 plastic pipe can be mounted to the other end ofbracket.

3. The 130-GPS/01 should be mounted below the top of thepole as shown in Figure 1 - 2 on page 1-5.

XWARNING: DO NOT MOUNT the GPS at the top of a pole or antenna.



1.4.3 Permanent Mounting Procedure

The 130-GPS/01 may be permanently mounted on a (2” nom-inal O.D.) plastic pole with a U-bolt. Failure to use a nonmetallicpole may or may not result in a weak satellite signal.

In order to mount the GPS unit properly the following instruction need to be used:

1. Reassemble the U-bolt by mating U-bolt with the plate andthen fasten nuts loosely with U-bolt and plate. Be sure theU-bolt and plate assembly are able to wrap around top ofantenna pole.

2. With the U-bolt at the proper height secure the bolts tightlybut do not overtighten bolts to the point of bending theplate or deforming the plastic antenna pole.

3. Next insert 130-GPS/01 onto the u-bolt and tighten bolts.

Figure 1 - 2 U-Bolt mounted GPS (View #1)

1-5


1.4.4 Temporary Mounting Procedure

The 130-GPS/01 may be mounted temporary using a tie-wrap. As with all mounting procedures, it is highly recom-mended that antenna pole be nonmetallic. A 130-GPS/01 shouldnot be mounted with the tie-wrap for longer then a 6-monthperiod because the plastic will break down and become brittle.

1. Loop tie-wrap through large mounting holes by threadingthe tie-wrap through the back, then over the top of thedoom, and through the other mounting hole.

2. Locate the 130-GPS/01 at the top of PVC antenna pole andcinch the tie until tight. To secure the tie-wrap tightly, pli-ers may be used.

3. Cut remaining tie-wrap off but leave enough slack in casethe tie wrap needs to be tightened.

Figure 1 - 3 Tie-wrap mounted GPS

1.4.5 Ground Placement of GPS Unit

The 130-GPS/01 can be place on the ground if there is anunobstructed view of the sky. When placing the unit on theground make sure that the orientation arrow is pointing upward.Also follow all reconditions.

Non-Metal


Section 2SiRF GPS Module

2.1 SiRF

This section explains the REF TEK 130-GPS/01 clock sys-tem when it is used with the SiRF GPS module and RT 548GPS time board. A user should be familiar with whatever REFTEK host system is in current use. Documents for other REFTEK products are available on request.


µ-Blox Overview

2.2 µ-Blox Overview

The REF TEK 130-GPS/01 clock which is shown below, iscapable of providing both time and position information, seri-ally, for host systems in the REF TEK 130 Series Data Acquisi-tion System family.

Each 130-GPS/01 is a self-contained unit. The unit is designedaround the µ-blox™ GPS-PS1E receiver module. The GPS-PS1Ereceiver board is based on the SiRF star I/LX™ chipset. Theantenna is mounted on the inside top of the case and the wholeunit is situated so that the antenna has clear overhead expo-sure. A single interface connector is located at one end of thecase. The 130-GPS/01 can be powered by either 5 or 12 VDCfrom the host system and supplies the time and position infor-mation serially to the host system together with a 1 Hertzpulse.

Figure 2 - 1 130-GPS/01


Specifications for GPS w/ SiRF

2.3 Specifications for GPS w/ SiRF

2.3.1 Time Base

2.3.2 130 GPS System Components

The unit receives power (+12VDC or +5VDC) and commandsfrom the host (usually a 130) via the interface connector andreturns a time signal to the host. The unit contains the followingprinted circuit boards:

• The RT548 GPS time board. This board is designed and built by Refraction Technology, it provides the interface between the host system and the µ-blox™ GPS receiver board. The RT548 is the motherboard onto which the small µ-blox™ GPS-PS1E receiver board is set.

• The µ-blox™ GPS receiver board (model GPS-PS1E). See the “µ-blox™ GPS-PS1E Boardset & Antenna”section, for an operating description.

The 130-GPS interface cable is available in several lengths tosuit a user’s choice of equipment location. The cable lengthrequired should be specified when the unit is ordered.

Category DescriptionDimensions: 4 x 4 x 3.125 inches (inc. bracket)Weight: 1.24 pounds.Power: < 1 Watt (12 VDC); < 0.4 W est. average using duty cycling.Powerin: 5 VDC or 12 VDC depending on internal jumper settings.

(Factory default is 12 VDC)Temperature: -10° to +65° CTime connec-tion:

PT07A12-8S 1Hz, Gnd, Serial Receive from host, Serial Transmit to host, 12V, 5V, and reset

1Hz Output: Leading edge of 20 mS wide, positive going (0-5v) pulse. Accuracy of +/- 100 nsec.

Characteristic DescriptionType GPS Receiver/Clock plus a disciplined oscillatorAccuracy with GPS ± 100 µsec after validated 3-D fix and lockedFree-Running Accuracy 0.1 ppm over the temperature range of 0 C to 40 C

and

0.2 ppm from - 20 to 0 C

° °

° °

2-9


Figure 2 - 2 130-GPS/01 System Components

RT548

Antenna

130-8010 Cable

GPS ReceiverInterface Board



Figure 2 - 3 130-GPS/01 BOM - Page 1 of 3

Assembly Description

GPS, Receiver/Clock, w/ Molded Case

Assembly Number

130-GPS/01

Qty Per AssyRevComponent DescriptionItemComponent

130-8010 Assembly, Cable, Internal, GPS B 1.00000 10

20 PM80-8880805 Connector, 2mm, Female, 4x4, Crimp, 24-28ga 1.00000

10 PT07A128S Connector, PT07A-12-8S 1.00000

30 WT-24-0 Wire, 24 Gauge, Teflon, Black 1.08000

40 WT-24-2 Wire, 24 Gauge, Teflon, Red 0.54000

50 WT-24-3 Wire, 24 Gauge, Teflon, Orange 0.54000

60 WT-24-4 Wire, 24 Gauge, Teflon, Yellow 0.54000

70 WT-24-5 Wire, 24 Gauge, Teflon, Green 0.54000

80 WT-24-6 Wire, 24 Gauge, Teflon, Blue 0.54000

90 WT-24-7 Wire, 24 Gauge, Teflon, Violet 0.54000

HPH6-32X8 Screw, 6-32X1/2, PPH, SS 4.00000 140

RT548-B01 Assembly, PCB, GPS Interface w/ U-BLOX, 1.00000 150

20 CCC0603C101J5GAC Capacitor, 100pF, 5%, 50V, COG, Chip 0603 1.00000

10 CCC0603C104K4R Capacitor, 0.1uF, 10%,16V, X7R, Chip 0603 10.00000

30 CCUWF1C101MBR1 Capacitor, 100uF, 16V, Chip, Nichicon 2.00000

40 CCUWF1E470MBR1 Capacitor, 47uF, 25V, Chip, Nichicon 2.00000

50 CRMBRA130LT3 Diode, Schottky power 1.00000

60 CRSMBJ12A Diode, TVS, 12V, Uni-Directional 1.00000

70 CRSMBJ15CA Diode, Transorb, 15V, Bi-directional, 600W 2.00000

80 CRSMBJ5.0A Diode, TVS, 5V, Uni-Directional 3.00000

300 HIW-04 Washer, Lock, #4, Internal Star, SS 4.00000

260 HKFB3-440-8-ET Standoff, Flare, #4-40x.250, PEM 4.00000

2-11





Assembly Number

130-GPS/01

Qty Per Assy U/MRevComponent DescriptionItemComponent

290 HPH4-40X3 Screw, 4-40X3/16, PPH, SS 4.00000 EA

90 LCTX100-4 Inductor, 100uH, 20% 1.00000 EA

100 MBR2032-T2 Battery, 3.0V, Lithium, Coin Cell, 195mah 1.00000 EA

320 P531220-2 Bar, Shorting 3.00000 EA

120 P7-215079-8 Connector, On-board, Micro-Match, 8-pin, .050, 1.00000 EA

130 P929647-01-32 Connector, Header, Single Row, 32 Pin, # of 0.22000 EA

140 PM80-8670822 Connector, 2mm, Male, 4x4, Vertical, PC mount 1.00000 EA

270 PSLW1-08-01SS Connector, Socket Strip, 8-Pin, 1 Row, 2.54mm 1.00000 EA

280 PTLW1-08-06GS Connector, Header Strip, 8-Pin, 1 Row, 2.54mm 1.00000 EA

150 RCRCW06031003F Resistor, 100.0K, 1%, 50V, Chip 0603 1.00000 EA

160 RCRCW060310R0F Resistor, 10 OHM 1%, 50V, Chip 0603 4.00000 EA



250 RT/GPS-PSIE GPS, Receiver, U-blox 1.00000 EA

330 RT548 PCB, GPS Interface w/ U-BLOX, Molded NRN 1.00000 EA

380 UCC3946D IC, Microprocessor Supervisor w/ Watchdog 1.00000 EA

200 UCG75L IC, Surge Arrestor 6.00000 EA

370 ULT1780CSW IC, 5v, RS232, Dual Driver/Rcvr, w/ ESD Protect 1.00000 EA

210 ULTC1174HVCS8 IC, Converter, DC-DC, Adj., Step-down/Inverting, 1.00000 EA

350 UTC7S08FU IC, 2-Input, AND Gate 1.00000 EA

220 UTC7W241FU IC, High Speed, CMOS 1.00000 EA

HU-9 U-Bolt, 2", 1/4-20, #9, w/ Plate & Nuts 1.00000 EA 170






Assembly Number

130-GPS/01

Qty Per Assy U/MRevComponent DescriptionItemComponent

O

HTI632S7-8 Insert, Threaded, Press-in, 6-32 Thread, for 4.00000 EA 180

SEAL136/60DURO O-Ring, 2-136, BUNA-N, 60 Durometer 1.00000 EA 190

HIW-06 Washer, Lock, #6, Internal Star, SS 4.00000 EA 200

130-8011-1.5 Assembly, Cable, Internal, GPS Interface, B 1.00000 EA 210

10 P7-215083-8 Connector, Ribbon, Micro-Match, 8-pin, .050, 2.00000 EA

20 WRIBBON10P Cable, Ribbon, 10 Conductor, Grey 0.13000 FT

HN1/4-20 Nut, 1/4-20, Stainless Steel 2.00000 EA 220

FAB1309080 Enclosure, Base, GPS Housing, 100ST Delrin 1.00000 EA 230

FAB1309081 Lid, GPS Housing, 100ST Delrin, 130-GPS/01 1.00000 EA 240

MDESSICANT-S-8032 Dessicant, Pack, S-8032 1.00000 EA 270

130-8105 Assembly, Cable, GPS Antenna, Internal, 1.00000 EA 280

10 ANTGPS-LMP1RA- Antenna, GPS, 12db, w/2"x2" ground plane, no 1.00000 EA

20 P1064538-1 Cable, Pigtail, SSMT 1.00000 EA

2-13


2.3.3 130-GPS/01 Assembly


RT548 GPS Interface Board

2.4 RT548 GPS Interface BoardThis section provides detailed technical information on the

electronic operations of the RT548 GPS time board, it includesthe following:

• Statement of the primary functions of the RT548• Explanation of electronic operations• A description of the µ-blox™ GPS-PS1E receiver board and its search algo-

rithm

Refer to the board schematic and layout drawings in this sec-tion.

2.4.1 Primary Functions of the RT548 GPS Interface Board

The RT548 provides lightning protection and a power supplyfor the receiver board. The RT548 also provides a back-up bat-tery and level translations on the serial TX and RX.

The RT548-B01 is designed to use the µ-blox™ GPS-PS1Ereceiver. The receiver is based on the SiRFstar 1/LX™ chipset.

2-15


2.4.2 RT548-B01 Parts List

Figure 2 - 6 RT548-B01 BOM (Sheet 1 of 2)

Refraction Technology, Inc.


Assembly, PCB, GPS Interface w/ U-BLOX,

Assembly Number

RT548-B01

Component DescriptionComponent

CCC0603C101J5GAC Capacitor, 100pF, 5%, 50V, COG, Chip 0603

C6

CCC0603C104K4RAC Capacitor, 0.1uF, 10%,16V, X7R, Chip 0603

C1, C5, C7-C10, C12-C15

CCUWF1C101MBR1GS Capacitor, 100uF, 16V, Chip, Nichicon

C2, C11

CCUWF1E470MBR1GS Capacitor, 47uF, 25V, Chip, Nichicon

C3, C4

CRMBRA130LT3 Diode, Schottky power

D6

CRSMBJ12A Diode, TVS, 12V, Uni-Directional

D1

CRSMBJ15CA Diode, Transorb, 15V, Bi-directional, 600W

D3, D4

CRSMBJ5.0A Diode, TVS, 5V, Uni-Directional

D2, D5, D7

HKFB3-440-8-ET Standoff, Flare, #4-40x.250, PEM

LCTX100-4 Inductor, 100uH, 20%

L1

MBR2032-T2 Battery, 3.0V, Lithium, Coin Cell, 195mah

BA1

P531220-2 Bar, Shorting

JP1, JP2, JP3

P7-215079-8 Connector, On-board, Micro-Match, 8-pin, .050,

J1

P929647-01-32 Connector, Header, Single Row, 32 Pin, # of

JP1-JP3

PM80-8670822 Connector, 2mm, Male, 4x4, Vertical, PC mount

J3

PTLW1-08-06GS Connector, Header Strip, 8-Pin, 1 Row, 2.54mm

J2




Refraction Technology, Inc.


Assembly, PCB, GPS Interface w/ U-BLOX,

Assembly Number

RT548-B01

Component DescriptionComponent

RCRCW06031003F Resistor, 100.0K, 1%, 50V, Chip 0603

R7

RCRCW060310R0F Resistor, 10 OHM 1%, 50V, Chip 0603

R1-R4


R6


R5

RT/GPS-PSIE-B01 Assembly, GPS, Receiver, U-blox, for RT548

HIW-04 Washer, Lock, #4, Internal Star, SS

HPH4-40X3 Screw, 4-40X3/16, PPH, SS

PSLW1-08-01SS Connector, Socket Strip, 8-Pin, 1 Row, 2.54mm

SOLDER ON UNDERSIDE OF U-BLOX CARD (RT/GPS-PS1E) IN UN

RT/GPS-PSIE GPS, Receiver, U-blox

RT548 PCB, GPS Interface w/ U-BLOX, Molded

REV A

UCC3946D IC, Microprocessor Supervisor w/ Watchdog

U5

UCG75L IC, Surge Arrestor

GAP1-GAP6

ULT1780CSW IC, 5v, RS232, Dual Driver/Rcvr, w/ ESD Protect

U4

ULTC1174HVCS8 IC, Converter, DC-DC, Adj., Step-down/Inverting,

U3

UTC7S08FU IC, 2-Input, AND Gate

U2

UTC7W241FU IC, High Speed, CMOS

U1

2-17


2.4.3 RT548 Board assembly

Figure 2 - 8 RT548 130-GPS/01 GPS Interface



2.4.4 RT548 Schematic

2-19


2.4.5 Electronic Operations of the RT548

The electronic operations of the RT548 are presented in thissection as follows:

Power Management

The 130-GPS/01 can be run off either +12 VDC or +5 VDC. The130-GPS/01 is configured to run off either the +12 V or +5 Vsupply based on the RT548 jumper settings as shown below:

Note: The 130 DAS units are configured to supply both +12 VDC and +5 VDC to the 130-GPS/01.

Back-up Battery

Battery Jumper JP2 is for the Backup Battery

For +12 VDC supply Factory Default

JP1 Jumper Pin 2 to Pin 3

JP3 Jumper on Pin 1 to Pin 2

For + 5 VDC supply Factory Default

JP1 Jumper Pin 1 to Pin 2

JP3 No jumper installed

Battery Jumper JP2

Battery Installed Jumper Pin 1 to Pin 2 (Factory Default)

No Battery Installed Jumper Pin 2 to Pin 3



2.4.6 µ-blox™ Board and Antenna

The µ-blox™ receiver board (GPS-PS1E) is a twelve-channelGPS, Standard Positioning Service (SPS) receiver boardset thatuses the C/A code on the L1 frequency carrier. The µ-blox™board provides position accuracy of 5 meters LEP. The UnitedStates Department of Defense reserves the right to implementselective availability (SA) to reduce position accuracy to 21meters LEP.

The antenna module receives GPS signals (using an internalfixed-pattern antenna), amplifies them, and forwards them tothe receiver board over a coaxial antenna cable. The receiverboard computes position and velocity. The receiver board pro-vides standard NMEA0183 messages to the 130 host over an RS-232 communications port. From a cold start, the board re initial-izes itself completely. To hasten the initialization process, theboard's non-volatile memory stores previously-collected satel-lite information.

The receiver board tracks as many as twelve satellites. TheGPS-PS1E board automatically selects at least the best four andup to the best twelve for computations. As the satellites move,the receiver board automatically tracks new satellites, continu-ing to select the best signals.

Upon power-up, the receiver board searches for signals fromsatellites that it has calculated to be above the horizon. It basesthe calculation that determines satellite availability on the alma-nac of satellite orbits, an estimate of the GPS unit's presentposition (based on the units last calculated fix), and the currenttime from the internal clock. If this information is reasonablyaccurate the receiver board acquires available satellites veryrapidly.

The GPS-PS1E has very fast time to first fix (TTFF). Typicalacquisition times for the GPS in Hot Start (GPS off for less than2 hours) is 2-6 seconds. Typical Cold Start times to acquisitionfor the GPS-PS1E is still only 60 seconds.

In Push To Fix Mode the GPS may periodically wake itself for afew seconds to update ephemeris and other data, so that whenit is returned to continuous power mode it will be able to lockvery quickly.

2-21


2.4.7 Cables

Figure 2 - 9 130-8010 U-Blox Interconnect cable



Figure 2 - 10 130-8011 GPS Interface cable

2-23


Figure 2 - 11 130-8015 U-Blox Antenna cable


Section 3Garmin 15H Module

This Section explains the newest REF TEK 130-GPS/01which contains a Garmin 15H/L GPS module. For the RT 552GPS time board technical reference see section “RT552 GPSInterface Board” on page 3-32. A user should be familiar withwhatever REF TEK host system is in current use. Documentsfor other REF TEK products are available on request.

3.1 Garmin Module Overview

The new REF TEK 130-GPS/01 clock, is capable of provid-ing both time and position information, serially, for host sys-tems in the REF TEK 130 Series Data Acquisition Systemfamily.

Each 130-GPS/01 is a self-contained unit. The unit isdesigned around the Garmin receiver module. The GPS-15Hreceiver board is based on the Garmin chipset. The antennais mounted on the inside top of the case and the whole unit issituated so that the antenna has clear overhead exposure. Asingle interface connector is located at one end of the case.The 130-GPS/01 can be powered by 12 VDC from the hostsystem and supplies the time and position information seri-ally to the host system together with a 1 Hertz pulse.

Figure 3 - 1 130-GPS/01


Specifications for Garmin GPS

3.2 Specifications for Garmin GPS

3.2.1 Time Base

3.2.2 130 GPS System Components

The unit receives power (+12VDC) and commands from thehost (usually a 130) via the interface connector and returns atime signal to the host. The unit contains the following printedcircuit boards:

• The RT552 GPS time board. This board is designed and built by Refraction Technology, it provides the interface between the host system and the Garmin GPS module. The RT552 is the motherboard onto which the small Garmin GPS receiver module is set.

• The Garmin GPS module (model GPS-15H). See the section on “The 130-GPS/01 is run off +12 VDC. The 130-GPS/01 input voltage should be between +10 and +15 Volts.” on page 3-37, for an operating description.

The 130-GPS interface cable is available in several lengths tosuit a user’s choice of equipment location. The cable lengthrequired should be specified when the unit is ordered.

Category DescriptionDimensions: 4 x 4 x 3.125 inches (inc. bracket)Weight: 1.24 pounds.Power: < 1 Watt (12 VDC); < 0.4 W est. average using duty cycling.Powerin: 12 VDCTemperature: -10° to +65° CTime connec-tion:

PT07A12-8S 1Hz, Gnd, Serial Receive from host, Serial Transmit to host, 12V, 5V, and reset

1Hz Output: Leading edge of 20 mS wide, positive going (0-5v) pulse. Accuracy of +/- 100 nsec.

Characteristic DescriptionType GPS Receiver/Clock plus a disciplined oscillatorAccuracy with GPS ± 100 µsec after validated 3-D fix and lockedFree-Running Accu-racy

0.1 ppm over the temperature range of 0 C to 40 C and

0.2 ppm from - 20 to 0 C

° °

° °



Figure 3 - 2 130-GPS/01 System Components

RT552

Antenna

130-8010 Cable

Garmin ModuleInterface Board

3-27


Figure 3 - 3 130-GPS/01 BOM (Page 1 of 3)

U/M

EA

RevAssembly Description

GPS, Receiver/Clock

Assembly Number

130-GPS/01A

Qty Per AssyRevComponent DescriptionComponent

1

Lot Size

130-8010 Assembly, Cable, Internal, GPS B 1.00000

PM80-8880805 Connector, 2mm, Female, 4x4, Crimp, 24-28ga 1.00000

PT07A128S Connector, PT07A-12-8S 1.00000

WT-24-0 Wire, 24 Gauge, Teflon, Black 1.08000

WT-24-2 Wire, 24 Gauge, Teflon, Red 0.54000

WT-24-3 Wire, 24 Gauge, Teflon, Orange 0.54000

WT-24-4 Wire, 24 Gauge, Teflon, Yellow 0.54000

WT-24-5 Wire, 24 Gauge, Teflon, Green 0.54000

WT-24-6 Wire, 24 Gauge, Teflon, Blue 0.54000

WT-24-7 Wire, 24 Gauge, Teflon, Violet 0.54000

FAB1309080 Base, Enclosure, GPS 1.00000

FAB1309081 Lid, GPS Housing 1.00000

FAB1309109 Antenna, GPS, with Cable, for 130-GPS/01A A 1.00000





FAB1309142 Ring, Product Identification, for 130-GPS/01A 1.00000

HIW-06 Washer, Lock, #6, Internal Star, SS 4.00000

HN1/4-20 Nut, 1/4-20, Stainless Steel 2.00000

HNGSG-2 Grommet, Strip, w/ Adhesive, Nylon 0.17000

HPH6-32X8 Screw, 6-32X1/2, PPH, SS 4.00000

HPLT3S-C0 Ty-Wrap, Weather Resistant Nylon, 11.5 " long 2.00000

HTI632S7-8 Insert, Threaded, Press-in, 6-32 Thread, for 4.00000

HU-9 U-Bolt, 2", 1/4-20, #9, w/ Plate & Nuts 1.00000

MDESSICANT-S-8032 Dessicant, Pack, S-8032 1.00000

RT552-B01 Assembly, PCB, GPS Interface w/ GARMIN, 1.00000

CCUWF1C101MBR1GS Capacitor, 100uF, 16V, Chip, Nichicon 4.00000

C3-C6

3-29




CCUWF1E470MBR1GS Capacitor, 47uF, 25V, Chip, Nichicon 2.00000

C1, C2

CRSMBJ12A Diode, TVS, 12V, Uni-Directional 1.00000

D1

CRSMBJ15CA Diode, Transorb, 15V, Bi-Directional, 600W 2.00000

D3, D4

CRSMBJ5.0A Diode, TVS, 5V, Uni-Directional 2.00000

D2, D5

H12HSS2X3 Spacer, 3/16 Round, .090 Hole, 3/16 Length, 3.00000

HBW-M2 Washer, Spring (Bellevue), M2, SS 3.00000

HKFS2-M2 Nut, M2, PEM, SS 3.00000

HPHM2X10 Screw, M2x10, Philips, Fillister Head, SS 3.00000

P52793-0890 Connector, LIF, 1mm, 8 pin, Rt. Angle, SMT 1.00000

J2

P929647-01-32 Connector, Header, Single Row, 32 Pin, # of 0.06000

JP1

PM80-8670822 Connector, 2mm, Male, 4x4, Vertical, PC mount 1.00000

J1

RCRCW060310R0F Resistor, 10 Ohm, 1%, 50V, Chip 0603 3.00000

R1-R3

RT/GPS-15H-F GPS, Receiver, 12 Ch, WAAS, High Voltage, 1.00000

RT552 PCB, GPS Interface w/ GARMIN, Molded 1.00000



3.2.3 130-GPS/01 Assembly

Ora

ng

eR

ing

3-31


3.3 RT552 GPS Interface BoardThis section provides detailed technical information on the

electronic operations of the RT552 GPS time board, it includesthe following:

• Statement of the primary functions of the RT552• Explanation of electronic operations

• A description of the Garmin™ 15H GPS module and its search algorithm

Refer to the board schematic and layout drawings in this sec-tion.

3.3.1 Primary Functions of the RT552 GPS Interface Board

The RT552 provides lightning protection and a power supplyfor the receiver board. The RT552 also provides level transla-tions on the serial TX and RX.

The RT552-B01 is designed to use the Garmin™ 15H GPS mod-ule.



3.3.2 RT552-B01 Parts List


U/M

EA


Assembly, PCB, GPS Interface w/ GARMIN,

Assembly Number

RT552-B01


1

Lot Size

CCUWF1C101MBR1GS Capacitor, 100uF, 16V, Chip, Nichicon 4.00000

C3-C6

CCUWF1E470MBR1GS Capacitor, 47uF, 25V, Chip, Nichicon 2.00000

C1, C2

CRSMBJ12A Diode, TVS, 12V, Uni-Directional 1.00000

D1

CRSMBJ15CA Diode, Transorb, 15V, Bi-Directional, 600W 2.00000

D3, D4

CRSMBJ5.0A Diode, TVS, 5V, Uni-Directional 2.00000

D2, D5

H12HSS2X3 Spacer, 3/16 Round, .090 Hole, 3/16 Length, 3.00000

HBW-M2 Washer, Spring (Bellevue), M2, SS 3.00000

HKFS2-M2 Nut, M2, PEM, SS 3.00000

HPHM2X10 Screw, M2x10, Philips, Fillister Head, SS 3.00000

P52793-0890 Connector, LIF, 1mm, 8 pin, Rt. Angle, SMT 1.00000

J2

P929647-01-32 Connector, Header, Single Row, 32 Pin, # of 0.06000

JP1

3-33



gy

U/M

EA


Assembly, PCB, GPS Interface w/ GARMIN,

Assembly Number

RT552-B01

Qty Per AssRevComponent DescriptionComponent

1

Lot Size

PM80-8670822 Connector, 2mm, Male, 4x4, Vertical, PC mount 1.00000

J1

RCRCW060310R0F Resistor, 10 Ohm, 1%, 50V, Chip 0603 3.00000

R1-R3

RT/GPS-15H-F GPS, Receiver, 12 Ch, WAAS, High Voltage, 1.00000

RT552 PCB, GPS Interface w/ GARMIN, Molded 1.00000

UCG75L IC, Surge Arrestor 5.00000

GAP1-GAP5

ULT1121CS8-3.3 IC, Regulator, Low Dropout, 3.3V, SO8 Pkg. 1.00000

U3

ULT1121CS8-5 IC, Regulator, Low Dropout, 5V, SO8 Pkg. 1.00000

U2

UTC7W241FU IC, High Speed, CMOS 1.00000

U1

WFFCJ-21039-0225 Jumper, Flat Flex Cable, 1mm, 8 cond., Type A, 1.00000



3.3.3 RT552 Board assembly

Figure 3 - 8 RT548 130-GPS/01 GPS Interface

3-35


3.3.4 RT552 Schematic

55

44

33

22

11

DD

CC

BB

AA

D C

GPS_1Hz

GND

GPS_TX

->

GND

E AF

<-

B

GPS_RX

->

GH<-GPS_RST

12 V PWR

5 V PWR

Install Jumper for

backup power only

00-3552 -

SC

HE

MA

TIC

, 13

0-G

PS

INT

ER

FA

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TO

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RM

IN, F

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Title

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f

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SR

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GP

ST

X

GP

ST

XG

PS

RX

1PP

S

1PP

S

+5

VC

C

+5

VC

C

12Vin

12Vin

5Vin

5Vin

+3.3V

bak

+3.3V

bak

12Vin

D2

TV

S 5V

SM

/DO

214AA

_12-CM

ICR

OS

EM

IS

MB

J5.0A

GA

P4

75V

CP

CL

AIR

CG

75L

CG

75L

GA

P2

75V

CP

CL

AIR

CG

75L

CG

75L

GA

P3

75V

CP

CL

AIR

CG

75L

CG

75L

GA

P1

75V

CP

CL

AIR

CG

75L

CG

75L

D3

SM

BJ1

5C

AS

M/D

O214A

A_12-C

2 1

R1

10

.0 O

hm

1%

SM

/R_0603-C

R2

10

.0 O

hm

1%

SM

/R_0603-C

R3

10

.0 O

hm

1%

SM

/R_0603-C

D1

TV

S 12V

SM

/DO

214AA

_12-CM

ICR

OS

EM

IS

MB

J12A

D4

SM

BJ1

5C

AS

M/D

O214A

A_12-C

2 1

GA

P5

75V

CP

CL

AIR

CG

75L

CG

75L

D5

TV

S 5V

SM

/DO

214AA

_12-C

MIC

RO

SE

MI

SM

BJ5.0A

J2

8-PIN

LIF1

MM

/LIF

/SM

T/R

A/8/T

OP

52793-0890M

OLE

X 12345678

+C

24

7 u

F 2

5VC

HIP

CA

P0

8

+C

147 uF

25VC

HIP

CA

P0

8

U3

LT

1121CS

8-3.3S

OG

.05

0/8

/W.244/L.225

LIN

EA

R T

EC

H

12345 6 7 8

OU

TF

BG

ND

NC

SH

DN

NC

NC

IN

U2

LT1121C

S8-5

SO

G.0

50

/8/W

.244/L.225L

INE

AR

TE

CH

12345 6 7 8

OU

TF

BG

ND

NC

SH

DN

NC

NC

IN

+C

51

00

uF

16VC

HIP

CA

P0

8

+C

41

00

uF

16VC

HIP

CA

P0

8+

C3

10

0 u

F 16V

CH

IPC

AP

08

JP1

MP

929647

BL

KC

ON

.10

0/V

H/1

RO

W/W

.100/2

12

+C

61

00

uF

16VC

HIP

CA

P0

8

VCC

GND

U1

A

TC

7W

241FU

-2S

OG

.025/8

126

4

8

U1

B

TC

7W

241F

U-2

SO

G.0

25/8T

OS

HIB

A

753

J1M80-8670822

PM

80-8670822

12345678



3.3.5 Electronic Operations of the RT552

The 130-GPS/01 is run off +12 VDC. The 130-GPS/01 inputvoltage should be between +10 and +15 Volts.

The Garmin™ receiver board (GPS-15H) is a twelve-channelGPS, Standard Positioning Service (SPS) receiver module thatuses the C/A code on the L1 frequency carrier. The Garmin™provides position accuracy of 5 meters LEP. The United StatesDepartment of Defense reserves the right to implement selec-tive availability (SA) to reduce position accuracy to 100 metersLEP.

The antenna module receives GPS signals (using an internalfixed-pattern antenna), amplifies them, and forwards them tothe receiver board over a coaxial antenna cable. The receiverboard computes position and velocity. The receiver board pro-vides standard NMEA0183 messages to the 130 host over an RS-232 communications port.

The receiver board tracks as many as twelve satellites. TheGPS-15H board automatically selects at least the best four andup to the best twelve for computations. As the satellites move,the receiver board automatically tracks new satellites, continu-ing to select the best signals.

The GPS-15H has very fast time to first fix (TTFF). Typicalacquisition times for the GPS in Hot Start (GPS off for less than2 hours) is 2-6 seconds. Typical Cold Start times to acquisitionfor the GPS-15H is still only 45 seconds.

3-37


3.3.6 Interface cable

Figure 3 - 9 130-8011 GPS Interface cable
