The material contained in this document is the property of Electronics & Innovation Ltd., it is subject
to change without notice.
February 2007 Page 4 of 17 Revision C
2.3 Mains Fuse Rating
The Mains Fuse Fl is located on the rear panel. The replacement part number is F981-ND
2.4 Rack Installation
In order to install the Model 325LA in a standard 19 inch relay rack, the mounting
brackets must be attached to the cover as follows:
a.
Remove the four feet on the underside of the amplifier if the minimum
vertical usage of the relay rack is necessary.
b.
Remove the two M4-10 screws located on each side of the cover nearest
the front panel.
c.
Attach the rack mounting brackets to the sides of the unit using the screws
removed in step (b).
2.5
Mains Lead Connection
The unit comes supplied with a 6 foot mains cord.
2.6 Cooling
When the 325LA is enclosed by an external cabinet, provisions must be made to ensure
an adequate flow of cooling air to the unit. Ambient temperature of the air must not
exceed 40° C.
2.7 Proceed as follows:
(i)
Ensure that there is at least 3” / 7.5 cm clearance at the rear of unit for air flow.
(ii)
Ensure RF input voltage is not excessive
a. The 1 V rms indicated maximum input voltage is 5 times the level of the
input signal required to achieve maximum output. Input voltages in excess
of 2 volts peak may permanently damage the instrument.
(iii)
Connect the output via a 50 ohm coaxial lead and BNC plug to the load.
(iv)
Connect the input signal via a 50 ohm coaxial lead and BNC plug to the input
connector.
