MAN-C24-0001 - Güralp Systems Limited

CMG-CD24
channel, the Stream ID will take the form ****MX, where M stands for
Mux and X is a hexadecimal integer (i.e. 0 – 9, and A – F for 10 through
15). The Z, N/S and E/W Mass Position Mux channels appear as M8,
M9 and MA respectively.
3.1.5 Ports
The Baud Rates pane of the Configuration setup window allows you to
program the baud rate and stop bits for the CD24's output port.
If you have a CD24 with Ethernet or Wi-Fi options, the settings you
configure here are used both on the standard data output port and on
the internal port which sends data to the Ethernet/Wi-Fi module. If
you change them, you will also need to configure the Ethernet/Wi-Fi
module to receive data with the new settings. This can be done using
the Lantronix DeviceInstaller utility (see section 2.3 on page 13).
The baud rate you choose must satisfy two conditions:
• It must be high enough to allow the transmission of all data
generated by the digitiser at the sampling rates you have chosen.
For three streams of data at 100 Hz, for example, 9600 baud will
usually be sufficient. If you wish to transmit 200 Hz data,
however, the baud rate must be at least 19200.
• It must be low enough to fit within the operating range of the
telemetry equipment you are using. While modern modems
often offer transfer rates up to 56kbaud, the telephone or
transmission lines may not support these rates. The same holds
true for radio telemetry.
36 Issue C