Appendix A: Maintenance
Models 707B and 708B Switching Matrix Reference Manual
A-4
707B-901-01 Rev. B / January 2015
Fixed rack installation
The Model 707B ships with a fixed rack-mounting kit. The following table lists the included hardware
for a fixed mounting of the Model 707B in a 48.26 cm wide
×
60.96 cm tall
×
76.20 cm deep (19 in.
×
24 in.
×
30 in.) rack. Verify that you have all the necessary parts before beginning the installation
procedure.
The Model 708B ships without a rack-mount kit. To rack mount a Model 708B, contact your local
Keithley Instruments office, sales partner, or distributor to order the Model 4299-6 Fixed Rack-Mount
Kit. Installation instructions are included with the kit.
Parts list for Model 707B rack mounting
Item
Description
Keithley Part Number
Quantity
A
Chassis support (left)
707-321
1
B
Chassis support (right)
707-322
1
C
Nut, #10-32 captive
FA-148
4
Bracket kit consisting of:
BR-31
1
D
Rear support bracket
--
2
E
Spacer bar
--
2
F
Nut bar
--
4
G
Screw, #10-32
×
1/2 in. Phillips
Binder hardware
--
12
Rack preparation
To prepare the rack for Model 707B installation:
1. Select a position in the rack. In most cases, the weight of the instrument dictates a position in the
lower half of the rack. The Model 707B fills 35.56 cm (14 in.) of vertical space.
The mainframe must be mounted at a height that is an increment of 4.45 cm (1.75 in.) from the top or
bottom of the rack. Attempting to mount the mainframe at a nonincremental height will cause
difficulties with hole alignment.