Guralp Systems CMG-DCM build <10,000 - Manual (Page 20)

Acquisition Modules and Platinum Firmware Initial set-up
3 Initial set-up
3.1 Introduction
All acquisition modules except the CMG-NAM can be configured and
monitored either over an Ethernet network or via a serial (RS232) line and are
provided with at least one network and one serial port. Because the
CMG-NAM is designed for use in a data centre, it only has a network port.
The actual number of network or serial ports is dependant on the exact model
of the acquisition module. CMG-EAMs in peli-cases are supplied with a
dedicated console connector located under the lid.
If using a network, the acquisition module can be accessed using a web
browser or, in character mode, using ssh. Instructions for connecting to the
network port are given in section 3.2 on page 20.
If you prefer to use serial communications, the module can be accessed using
a terminal emulator. Instructions for connecting via the serial port are given
in section 3.3 on page 30.
Note: We recommend use of the web interface over a network for
general configuration and operation.
3.2 Connecting to the network port
To use the network port, you must first set up a network address. Some
networks need manual configuration (normally referred to as “static”
addressing); others use the Dynamic Host Configuration Protocol (DHCP) to
allow a DHCP server to automatically assign network addresses. If no DHCP
server is present, many systems will fall back to a randomly-generated
“link-local” address (known by Microsoft as Automatic Private IP Addressing,
or APIPA). Before you can access an acquisition modules over a network, you
must set (for static addresses) or discover (if you use DHCP) its IP address.
Note: If you are setting up a unit in the laboratory for subsequent
deployment in the field, you can set up the final network address
using the web interface and over-ride it with a temporary, static
network address using the command line. The web-configured
address will take effect when the unit is next rebooted.
3.2.1 DHCP-assigned addresses
Acquisition modules are supplied configured for DHCP. If your network uses
DHCP to assign addresses, simply connect the acquisition module to the
network and wait a few minutes for the process to complete. Your network
administrator should then be able to tell you the address that has been
MAN-EAM-0003 20 Issue E - February 2014