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Getting started

processing, storage, forwarding and protocol conversion and well as digitiser
and instrument configuration and control facilities.

Unless ordered otherwise, the EAM-R is supplied pre-configured to:

acquire a DHCP or APIPA network address;

collect GCF data from all seven USB connectors (this is, in fact, entirely
automatic and not configurable);

synchronise its own clock to connected digitisers; and

provide a Scream server on the default network port (1567), forwarding
all collected data;

In   many   situations,   this   means   that   you   can   start   using   your   EAM-R
immediately with no further configuration.

There are, however, many other features of Platinum firmware on the EAM-R
which you may wish to explore and enable.  Full details are provided in the
Platinum   manual,   MAN-EAM-0003,   which   should   be   read   in   conjunction
with   this   document   and   is   available   for   download   from

www.guralp.com/documents/MAN-EAM-0003.pdf

.

The rest of this section discusses features of the EAM-R which differ from or
are not mentioned in the Platinum manual.

2.3.1 The LCD display

The front-panel LCD display is not mentioned in the Platinum manual:   it
scrolls through several pages of status information, showing the same content
as the “System status” page of the web interface, as well as the current IP
address.

2.3.2 The FLUSH button

The “FLUSH” button on the front panel is not mentioned in the Platinum
manual.     Pressing   this   button   has   exactly   the   same   effect   as   clicking   the
“Flush to storage” button in the “Tools”   “Storage and recording” page of the

web interface, causing recorded data to be flushed from the ring-buffers to the
tertiary   (or   external)   storage   device.     USB   storage   devices,   such   as   USB
“thumb drives” may be connected to any of the USB ports for this purpose:
see the following section for more details.

2.3.3 Connectors

2.3.3.1 Console

The CONSOLE connector is not configurable via Platinum: it is permanently
configured   as   a   terminal   running   at   38,400   Baud.     You   can   access   the
command line of the EAM-R by connecting a terminal emulator to this port.

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10

 Issue A  - February 2012

Summary of Contents for CMG-EAM-R

Page 1: ...ice The information in this manual is proprietary to G ralp Systems Limited and may not be copied or distributed outside the approved recipient s organisation without the approval of G ralp Systems Li...

Page 2: ...Error Reference source not found Contents furnishing performance or usage of this material Issue A February 2012 Error Reference source not found Issue A February 2012...

Page 3: ...Hook up diagrams 7 2 2 1 Multiple CD24 R8s with GPS synchronisation 7 2 2 2 Multiple CD24 R8s with GPS synchronisation 8 2 3 Operation 9 2 3 1 The LCD display 9 2 3 2 The FLUSH button 10 2 3 3 Connec...

Page 4: ...4Mb of RAM and 512Mb of on board flash The unit is equipped with 100BASE TX Ethernet three serial ports and seven USB ports The EAM R runs the open source Linux operating system and G ralp Systems Pla...

Page 5: ...for example allocate addresses to both systems if the EAM R is connected directly to a laptop running Windows To determine which address has been allocated use one of the techniques described in sect...

Page 6: ...s There are three ways to discover a dynamically allocated address You can read it from the unit s LCD display you can connect to the serial port and enquire or you can use a broadcast address in Scre...

Page 7: ...255 255 255 255 this is a broadcast address that will be recognised by all hosts on the network The new server will appear in the Servers list click on it once to highlight it and then key This sends...

Page 8: ...please see its manual MAN C24 0004 which can be downloaded from www guralp com documents MAN C24 0004 pdf Multiple CD24 R8s can be connected to a single EAM R using USB cables as shown The GPS receive...

Page 9: ...he ETHERNET connector All other connections are as described in the previous section The EAM R needs to be configured to accept NTP synchronisation and to output NMEA GPS timing signals from the TIME...

Page 10: ...is section discusses features of the EAM R which differ from or are not mentioned in the Platinum manual 2 3 1 The LCD display The front panel LCD display is not mentioned in the Platinum manual it sc...

Page 11: ...for each on the System Status page of the web interface and appropriate entries will appear in the instrument control and digitiser configuration menus If the digitisers are connected and powered up...

Page 12: ...no parity bit and one stop bit Hardware and software flow control are not used These settings can not be changed in the firmware so that access to the configuration system can be gained via this port...

Page 13: ...nectors are purchased from GSL 3 2 2 Time This is a standard DE9F TIA 574 sub miniature D sub plug conforming to DIN 41652 and MIL DTL 24308 They are very widely available as are suitable mating conne...

Page 14: ...cted 5 Ground 6 not connected 7 not connected 8 not connected 9 not connected Wiring details for the compatible plug DE9M as seen from the cable end i e during assembly 3 2 4 Ethernet The ETHERNET con...

Page 15: ...with conventional wiring Suitable mating connectors are widely available USB connections are very sensitive to wiring details so it is recommended that ready made cables are used where possible When u...

Page 16: ...Error Reference source not found Revision history 4 Revision history 2010 04 28 A New document Error Reference source not found 16 Issue A February 2012...

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