Guralp Systems CMG-CD24R8 - Manual (Page 4)

CD24-R8
2 Getting started
The following steps will enable you to connect and start using your
CMG-CD24R8.
1. Connect your sensors (or other ±10V differential sources) to
either the front-panel or rear-panel inputs. See section 5.1.1 on
page 16 for the front-panel input pin-outs and section 5.2.1 on
page 17 for the rear-panel input pin-outs.
2. If using a single CMG-CD24R8, connect your GPS receiver to the
GPS input on the rear panel. This connector provides power to
the GPS receiver and accepts NMEA and PPS inputs from the
receiver to provide synchronisation.
3. If using multiple CMG-CD24R8s, connect your GPS receiver to the
GPS input on the rear panel of the first digitiser. Connect a GPS
“daisy-chain” cable (part number CAS-PEP-0045) between the
GPS IN/OUT connectors of all digitisers to distribute the
synchronisation signals.
4. Provide a data output connection as follows:
(a) If used with a CMG-EAM-R, connect a USB cable between the
USB connector on the rear panel and a USB port on the CMG-
EAM-R
(b) If used without a CMG-EAM-R, connect either:
i. a serial cable between the DATA connector on the
rear panel and a serial port on a PC or laptop;
ii. a USB cable between the USB connector on the rear
panel and a USB port on a PC or laptop; or
iii. a network cable between the ETHERNET connector
on the rear panel and a network port on a switch, PC
or laptop.
5. Connect the supplied power adapter to the POWER connector on
the rear panel.
The hook-up diagrams on the following pages show the most common
usage scenarios.
4 Issue B