Introduction Page 35 of 35
Table 1-2
Rear Panel Connectors and Controls
Fig 1-2
Ref. # Item Function
1 AC Inlet AC power receptacle in accordance with IEC-320 and CEE-22
Module specifications. Contains fuse T5.0A, 250V, 5x20mm time delay
fuse for 90 to 250V operation. Replace only with the same type and
rating. (QuadTech PN 520068). Also refer to paragraph 1.5.3.
The Chassis Ground Symbol, shown internal to the instrument
and adjacent to the terminal which connects to the green wire from the AC
Inlet module, is the instrument’s Chassis Ground. This instrument
should be accessed internally only by a qualified service person.
2 Rear Panel Duplicates front panel connectors, HIGH VOLTAGE,
Connections GROUND RETURN and GROUND CONTINUITY
3 REMOTE Standard Interface on all units except when ENHNACED REMOTE I/O
& RS232 option is ordered. Refer to paragraph 3.2.
4 IEEE-488 IEEE-488 Interface Option (2000-40), includes RS232 & Remote I/O
Interface). Refer to paragraph 3.5.
5 ENHANCED Enhanced Remote Interface Option (2000-42), includes RS232 Interface.
REMOTE Refer to paragraph 3.4.
I/O
6 AUXILIARY Factory use only
1.5 Installation
1.5.1 Instrument Positioning
The Guardian 2500 is supplied in a bench configuration, i.e. in a cabinet with resilient feet for
placement on a table or bench. The front panel includes a high resolution back lit LCD display
for convenient viewing. The optimum angle for viewing is straight onto the display. This means
that for bench or rack operation the instrument should be positioned at eye level.