Tektronix 4299-14 User manual
Keithley Instruments
Model 4299-14 Dual Fixed Rack-Mount Kit
28775 Aurora Road
Cleveland, Ohio 44139
1-800-935-5595
tek.com/keithley
Assembly and Mounting Instructions
Introduction
This kit contains all the hardware you need to install a Model 2280, 2281, 2220, or 2230G half-rack instrument
in a standard 19-inch equipment rack.
1U is a standard vertical spacing that is equal to 4.45 cm (1 ¾-inch).
Figure 1: Typical installation (instrument and rack not included)
Tools required
Medium (#2) Phillips head screwdriver
3/8-inch wrench
Flat-bladed screwdriver or cage nut installation tool
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Model 4299-14 Dual Fixed Rack-Mount Kit Assembly and Mounting Instructions
Description
Part number
Quantity
U-bracket
4299-14-301
Front bracket support
4299-14-302
3
Rear bracket support
4299-14-303
2
4
Unit clip
4299-14-304
2
5
Front rack ear
4299-14-305
2
6
Blank filler plate
4299-14-306
1
7
Carriage bolt
212026400
2
Cage nut
FA-274
10-32 x 5/8-in. Phillips truss head screw
10-32X5/8PHTRSH
10-32 x 1/2-in. Phillips pan head screw
10-32X1/2PPHSEM
10-32 Keps® washer nut
10-32KEPNUT
12
6-32 x 1/2-in. Phillips pan head screw
6-32x1/2PPHSEM
4
13
M4 x 1/2-in. Phillips pan head screw
M4X10PPH
4
Parts list
The following figure shows the hardware that is supplied with this kit. The following table lists the hardware,
part number, and quantity.
Figure 2: Model 4299-14 Rack Mount Kit parts
#
1
2
8
9
10
11
1
2
12
12
6
8
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Model 4299-14 Dual Fixed Rack-Mount Kit Assembly and Mounting Instructions
Prepare the rack
To prepare the rack for installation:
1. Determine where the instrument will be mounted.
2. Install four cage nuts on each of the front rails as shown in the following figure.
Figure 3: Intall the cage nuts on the front rails
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Model 4299-14 Dual Fixed Rack-Mount Kit Assembly and Mounting Instructions
3. Install two cage nuts on each of the rear rails as shown in the following figure as shown in the
following figure.
Figure 4: Install the cage nuts on the rear rails
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Model 4299-14 Dual Fixed Rack-Mount Kit Assembly and Mounting Instructions
4. Install the two front support brackets onto the front rails using four 10-32 x 5/8-inch truss head screws as
shown in the following figure.
Figure 5: Install the front support brackets
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Model 4299-14 Dual Fixed Rack-Mount Kit Assembly and Mounting Instructions
5. Install the two rear support brackets using four 10-32 x 5/8-inch truss head screws as shown in the
following figure.
Figure 6: Install the rear support brackets
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