Keithley S46 Installation Manual page 2

Table 1 (Continued)
S46 relay kits
Relay kit
Relay
model number
location
(Description)
S46-SPDT-KIT-40 1 to 8
(40GHz SPDT)
S46-SP4T-KIT-40 A to D
(40GHz SP4T)
S46-SP6T-KIT-40 A to D
(40GHz SP6T)
Installation
Before installing the relays, remove the screws that secure the S46 top cover, and then remove the cover.
WARNING: Disconnect the line cord and all cables from the S46 before removing the top
cover.
To find the applicable installation procedure for your specific kit, refer to the Installation reference column contained
in Table 1, and then perform the installation.
18, 26.5, and 40GHZ Relay 1-8 installation
1. Remove the nuts securing the cover plate over the mounting hole where the new relay is to be installed (see
Figure 1).
2. Install the support SPDT bracket at the relay location securing it with two nuts.
3. Thread the red and black wires (from the relay) through the PVC Tubing (TX-52-7)(not shown—part of con-
necting cable SYS46-311C). The TX-52-7 may be cut to a length that will allow the relay assembly to be
removed without removing the top cover.
4. Referring to Figure
5. Install the relay on the support bracket using the supplied 4-40X5/8PPH screws.
6. Plug the wire connector into the appropriate circuit board connector (see
7. Install the top cover, and then configure the system as covered in
guide.
Figure 1
RELAY 1-8 installation
S46 Front Panel
PA-910 Rev. B / 12-05
Kit parts summary
(Quantity)
4-40 ×5/8 PPH screws (2)
SPDT relay (1)
SPDT bracket (1)
Connecting cable (1)
SP4T relay (1)
Ribbon cable (1)
SP6T relay (1)
Ribbon cable (1)
1, solder the two control wires to the terminals of the relay.
4-40X5/8PPH Screws
Top Cover
Relay
SPDT Bracket
Keithley part
Installation reference
number
4-40X5/8PPH "18, 26.5, and 40GHZ Relay 1-8
installation" on page 2
21409
SYS46-314A
SYS46-311C
S40-0013 "18GHz, 26.5 and 40GHz Relay
A-D installation" on page 3
S46-U100-350A
S40-0166 "18GHz, 26.5 and 40GHz Relay
A-D installation" on page 3
S46-U100-350A
Figure
"System configuration" on page 3
Red Wire
Top view of SPDT Relay
NO
2).
of this
Black Wire
(+) (–)
C NC
2