GDU
27-1500
Original Instructions
10
9901X0265 Issue 2
NOTICE
The GDU must be operated from a clean power supply or UPS (uninterrupted power
supply) or you may incur power down errors.
NOTICE
Position the equipment so it is not difficult to operate the disconnection device.
Placez l'équipement de sorte qu'il n'est pas difficile de faire fonctionner le dispositif
de déconnexion.
The GDU has two anti-surge (T) fuses that that are used to protect the unit in the
case of over-current conditions. There are two fuses. For fuse replacement,
reference the Maintenance and Specifications section and use only UL/CSA certified
parts in the positions shown below.
2.5
Construction
2.5.1 Dimensions
The GDU physical dimensions are as follows:
Height
3U (160mm)
Width
365 mm
Depth
320 mm
2.5.2 Mainframe Chassis
The mainframe chassis is of a modular construction that will enable you to upgrade
your GDU to satisfy further demands you may place on the unit. The backplane PCB
has 5 DIN 41612 type C sockets for easy module insertion.
There are 4 slots of which you may insert up to 4 analogue input module cards (slots 1
through to 4) dependent on the tasks you require the GDU to perform.
2.5.3 Internal Power Supply
The internal power supply provides all the necessary voltages to drive all the modules
that may be fitted.
2.5.4 Rear Panel
Situated on the rear panel you will find the power on switch/filter that provides AC input
for the unit. This is fitted with 2.5A anti-surge fuses.
The rear panel also has the output connectors to your computer, a 9 D-type connector
plug for RS232 communication and an RJ45 connector for Ethernet comms.
A USB connector which may be used for future firmware updates is also on the rear
panel.
