Guralp Systems CMG-CD24S6EAM - Manual (Page 6)

CMG-CD24S6EAM Introduction
2.2.1.2 ETHERNET
The two 6-pin 100BASE-TX Ethernet ports support connection to a hub,
switch or router. The low-latency port connects to the Lantronix WiPort NR
device and the other connects to the CMG-EAM.
2.2.1.3 GPIO
The 12-pin GPIO (General Purpose Input/Output) port fulfils three functions:
it provides a serial console to the EAM, which can be used for monitoring,
configuration and control; it provides USB access from a PC or laptop to the
internal mass storage device for data collection and it provides a number of
tri-state lines which can be used to control or monitor external equipment.
One application is as tamper detection lines, which can be connected to
external switches and monitors as part of a secure installation.
2.2.1.4 USB
The 6-pin USB port allows connection of an external USB storage device for
data collection. It is also possible to perform firmware upgrades using this
port in situations where internet access is not available.
2.2.1.5 GPS
The 10-pin GPS port connects to a Guralp Systems GPS receiver which acts as
a timing source for time-stamping seismic data.
2.2.1.6 PWR/DATA
The 10-pin Power/Data Out port is the power input and general-purpose serial
port. It is a command line terminal running at 115,200 Baud in the default
configuration but it can also be used for GCF output, PPP network
connections, inbound GCF (from a digital instrument, for example), NMEA
functions, TCP serial conversion, a modem answering service or as a recorder
to store and forward data from any instrument with a serial output.
MAN-C24-0003 3 Issue A - May 2011