Tektronix 5110, Instruction Manual

Page: 45 / 128

Malntenance-5110
RACKMOUNTING
The rackmount version of the oscilloscope is designed
for operation in a standard 19-inch wide rack that has
Universal, El A, RETMA, or Western Electric hole spacing.
When properly mounted, this instrument will meet all
electrical and environmental specifications given in Sec­
tion 2 of this manual.
Installing The Slide-Out Tracks
The slide-out tracks for the instrument consist of two
assemblies, one for the left side of the instrument and one
for
the right side. Each assembly consists of three
sections. A stationary section attaches to the front and
rear rails of the rack, the chassis section attaches to the
instrument
(and is installed at the factory), and the
intermediate section fits between the othertwo sections to
allow the instrument to fully extend out of the rack.
Mounting Method
This instrument will fit most 19-inch wide racks whose
front and rear holes conform to Universal hole spacing,
some drilling may be required on racks having El A,
RETMA, or Western Electric hole spacing. The slide-out
tracks easily mount to the cabinet rack front and rear
vertical mounting rails if the inside distance between the
front and rear rails is within 10-9/16 inches to 24-3/8
inches. If the inside distance exceeds 24-3/8 inches, some
means of support is required for the rear ends of the slide-
out tracks. (For example, make extensions for the rear
mounting brackets.)
The smalt hardware components included with the
slide-out track assemblies are used to mount the tracks to
most standard 19-inch rack rails having this compatibility.
NOTE
1. Front and rear rails holes must be large enough to
allow inserting a 10-32 screw through the rail
mounting hole
if the rails are untapped (see Fig. 4-
2A).
Rack Dimensions
Height. At least 5-1/4 inches of vertical space is
required to mount this instrument in a rack. If other
instruments are operated in the rack, an additional 1/4
inch is required, both above and below the oscilloscope, to
allow space for proper circulation of cooling air.
2. Or, front and rear rail holes must be tapped to
accept a 10-32 screw if Fig. 4-2B mounting methodis
used. Note in Fig. 4-2B right illustration that a No. 10
washer (not supplied) may be added to provide
increased bearing surface for the slide-out track
stationary section front flange.
Width. A standard 19-inch wide rack may be used. The
dimension of opening between the front rails must beat
least 17-5/8 inches for a cabinet in which the front lip of the
stationary section is mounted behind the untapped front
rail as shown in Fig. 4-2A. If the front rails are tapped, and
the stationary section is mounted in front of the front rail
as shown in Fig. 4-2B, the dimension between the front
rails should be at least 17-3/4 inches. These dimensions
allow room on each side
of the instrument for the si ide-out
tracks to operate so the instrument can move freely in and
out of the rack.
Because of the above compatiblity, there will be some
small parts left over. The stationary and intermediate
sections for both sides of the rack are shipped as a
matched set and should not be separated. The matched
sets of both sides including hardware are marked 351-
0195-00 on the package. To identify the assemblies, note
that the automatic latch and intermediate section stop is
located near the top of the matched set.
Depth. For proper circulation of cooling air, allow at
feast two inches clearance behind the rear of the instru­
ment and any enclosure on the rack. If it is sometimes
necessary or desirable to operate the oscilloscope in the
fully extended position, use cables that are long enough to
reach from the signal source to the instrument.
Mounting Procedure. Use the following procedure to
mount both sides. See Fig. 4-2 for installation details.
1. To mount the instrument directly above or below
another instrument in a cabinet rack, select the ap-
4-3