Keithley S46T-SP4T-KIT-26, S46T-SP4T-KIT, S46T-SPDT-KIT-26, S46T-SP6T-KIT, S46T-SPDT-KIT-T Installation Manual

S46T Microwave Switch System

Keithley Instruments, Inc.

28775 Aurora Road
Cleveland, Ohio 44139
[phone]
www.keithley.com

Relay Installation Guide

Introduction

This guide contains information on S46T relay installation and system configuration that is necessary after
installing new relays. To install a relay, refer to “Relay kits” on page 1 for a description of the kits and then
follow the applicable installation instructions.

WAR N I N G: The information in this section is only intended for qualified service

personnel. Do not attempt to replace parts or otherwise service the
equipment unless you are qualified to do so.

Relay kits

Table 1 summarizes available relay kits and part numbers.

WAR N I N G: Use only the part s specified in Table 1 of this guide when servicing the

equipment. Use of improper parts may expose the operator to
hazardous voltages that could result in personal injury or death.

Table 1

S46T relay kits

Relay kit

model number

S46T-SPDT-KIT 18GHz SPDT 1 to 8 SPDT un-terminated relay (1) S40-0154 “SPDT relay 1–

S46T-SP4T-KIT 18GHz SP4T A to D 4-40 ×1/4 PPHSEM screws (2) 4-40X1/4PPHSEM “Relay A–D

S46T-SP6T-KIT 18GHz SP6T A to D 4-40 ×1/4 PPHSEM screws (2) 4-40X1/4PPHSEM “Relay A–D

S46T-SPDT-KIT-26 26.5GHz

S46T-SP4T-KIT-26 26.5GHz

Description

SPDT

SP4T

Relay

location

1 to 8 SPDT un-terminated relay (1) RL-308 “SPDT relay 1–

A to D 4-40 ×3/8 PFH screws (4) 4-40x3/8PFH “Relay A–D

Kit parts summary

(Quantity)

SPDT spacer (1) S40-SE05-307
Connecting cable (1) SYS46-311C

4-40 ×3/8 PFH screws (4) 4-40x3/8PFH
SP4T relay (1) RL-282-2
Ribbon cable (1) CA-286-1
Mounting plate (1) S40-N410-312

4-40 ×3/8 PFH screws (4) 4-40x3/8PFH
SP6T un-terminated relay (1) RL-282-1
Ribbon cable (1) CA-286-1
Mounting plate (1) S40-N410-312

SPDT spacer (1) S40-SE05-307
Connecting cable (1) SYS46-311C

SP4T un-terminated relay (1) RL-312
Mounting plate (1) S40-N410-312
Ribbon cable (1) S46-U100-350A

Keithley

part number

Installation

reference

8 installation”

on page 3

installation” on

page 5

installation” on

page 5

8 installation”

on page 3

installation” on

page 5

1 PA-913 Rev. A / 12-05

Table 1 (Continued)

S46T relay kits

Relay kit

model number

S46T-SP6T-KIT-26 26.5GHz

S46T-SPDT-KIT-T 18GHz SPDT 1 to 8 SPDT terminated relay (1) S40-0172 “SPDT relay 1–

S46T-SPDT-KIT-26T 26.5GHz

S46T-SP4T-KIT-T 18GHz SP4T A to D 4-40 ×3/16 PPHSEM screws (2) 4-40X3/16PPHSEM “Relay A–D

S46T-SP6T-KIT-T 18GHz SP6T A to D 4-40 ×3/16 PPHSEM screws (2) 4-40X3/16PPHSEM “Relay A–D

S46T-SP4T-KIT-26T 26.5GHz

S46T-SP6T-KIT-26T 26.5GHz

S46T-XFER-KIT

S46T-XFER-KIT-26

S46T-MSPDT-KIT

S46T-MSPDT-KIT-26

Description

SP6T

SPDT

SP4T

SP6T

18GHz

XFER

26.5GHz
XFER

18GHz

SPDT

26.5GHz
SPDT

Relay

location

A to D 4-40 ×3/8 PFH screws (4) 4-40x3/8PFH “Relay A–D

Connecting cable (1) SYS46-311C

1 to 8 SPDT terminated relay (1) RL-292-1 “SPDT relay 1–

A to D 4-40 ×3/16 PPHSEM screws (2) 4-40X3/16PPHSEM “Relay A–D

A to D 4-40 ×3/16 PPHSEM screws (2) 4-40X3/16PPHSEM “Relay A–D

A to D M3X5PPH screws (4) M3X5PPH “Relay A–D

A to D M3X5PPH screws (4) M3X5PPH “Relay A–D

A to D 4-40x1-1/2PPH screws (2) 4-40x1-1/2PPH “Relay A–D

A to D 4-40x1-1/2PPH screws (2) 4-40x1-1/2PPH “Relay A–D

Kit parts summary

(Quantity)

SP6T un-terminated relay (1) RL-309
Mounting plate (1) S40-N410-312
Ribbon cable (1) S46-U100-350A

Connecting cable (1) SYS46-311C

SP4T terminated relay (1) RL-317
Ribbon cable (1) S40-SV11-350

SP6T terminated relay (1) RL-318
Ribbon cable (1) S40-SV11-350

SP4T terminated relay (1) RL-310
Ribbon cable (1) S40-SV11-350

SP6T terminated relay (1) RL-290-1
Ribbon cable (1) S40-SV11-350

XFER un-terminated relay (1) RL-304
XFER mounting plate (1) S40-N410-311
Ribbon cable (1) S46-U100-350A

XFER un-terminated relay (1) RL-308
XFER mounting plate (1) S40-N410-311
Ribbon cable (1) S46-U100-350A

SPDT un-terminated relay (2) S40-0154
Mounting plate (1) S40-N410-309
Relay spacer (1) S40-N410-313
Ribbon cable (1) S46-U100-350A

SPDT un-terminated relay (2) RL-308
Mounting plate (1) S40-N410-309
Relay spacer (1) S40-N410-313
Ribbon cable (1) S46-U100-350A

Keithley

part number

Installation

reference

installation” on

page 5

8 installation”

on page 3

8 installation”

on page 3

installation” on

page 5

installation” on

page 5

installation” on

page 5

installation” on

page 5

installation” on

page 5

installation” on

page 5

installation” on

page 5

installation” on

page 5

Installation

Before installing the relays, remove the screws that secure the S46T top cover, and then remove the cover.

WAR N I N G: Disconnect the line cord and all cables from the S46T before

removing the top cover.

PA-913 Rev. A / 12-05 2

To find the applicable installation procedure for your specific kit, refer to the Installation reference column
contained in Table 1, and then perform the referenced installation.

SPDT relay 1–8 installation

1. Remove the 6 screws that secure the SPDT relay mounting brackets to the S46T chassis
(see Figure 1) and remove the SPDT assembly from front panel.

2. Remove the 2 screws holding relay spacers in the relay column containing the desired relay
installation location (see Figure 3) .

3. Loosen remaining 4 SPDT screws to facilitate second and third row installation.

4. For terminated relays: replace the spacer in the desired location with the relay (refer to the inset in

Figure 3 labeled Terminated SPDT relay installation).

For un-terminated relays: replace the spacer in the desired location with the re lay and an S40-SE05­307 spacer (refer to the inset in Figure 3 labeled Un-terminated SPDT relay installation).

5. Install the 2 screws removed in step 2 in the new relay column.

6. Thread the red and black wires (from the relay) through the PVC Tubing (PVC tubing, TX-52-7, is
part of SYS46-311C)(not shown). The TX-52-7 may be cut to a length that will allow the relay
assembly to be removed without removing the top cover.

7. Referring to Figure 2, solder the two control wires to the terminals of the relay.

8. Install the relay mounting bracket using the screws removed in step 1.

9. Plug the wire connector into the appropriate circuit board connector (see Figure 4).

10. Install the top cover, and then configure the system as covered in “System configuration” on

page 6 of this guide.

Figure 1

Remove SPDT 1–8 relay mounting brackets

SPDT relay mounting brackets

Screws
(6 places)

SPDT relay
mounting brackets

Figure 2

Connecting control wires to SPDT relay

Red Wire

Black Wire

(+) ()

NO C NC

PWR

ERR

NO

135

2

46

RA

NCO

NO NCO

1

35

2

46

RB

1

3

5

135

246

RC

246

RD

Red Wire

NO C NC

R1

R1

R1
R1

R1

NO

R1

R1 R3 R5

R2

(+) ()

R1
R1

NCO

R7

R4

R6

R8

Black Wire

3 PA-913 Rev. A / 12-05

Terminated

SPDT Relay

Un-terminated

SPDT Relay

Figure 3

SPDT 1–8 relay installation

Terminated

SPDT relay installation

Relay spacer screws
(2 per relay column)

Terminated
SPDT relay

NOTE Use the shorter relay spacer screws when

installing the right-most relay column.

Either relay type (Terminated or
Un-Terminated) may be installed in any
of the 8 locations.

Un-terminated

SPDT relay installation

Figure 4

Relay connector locations

RA

J5

To Power
Supply Board

Relay spacer screws
(2 per relay column)

Un-terminated
SPDT relay

S40-SE05-307

Relay

1
2
3
4
5

R8

J28

R1

J18

RD

J8

RC

J7

RB

J6

RELAY AD
Connectors

RELAY 18
Connectors
(J18J25)

(J5J8)

6
7
8

Relay

A
B
C
D

Connector

J18
J19
J20
J21
J22
J23
J24
J25

Connector

J5
J6
J7
J8

PA-913 Rev. A / 12-05 4

Relay A–D installation

1. Remove the four screws securing the cover plate over the mounting hole where the new relay is to
be installed (see Cover plate inset in Figure 6).

2. Connect the supplied ribbon cable to the relay:
XFER relays (transfer relays), 26.5GHz un-terminated relays, and MSPDT r elays—solder the
ribbon cable to the relay use Figure 5 as a guide.
All other A–D relays—secure the ribbon cable to the relay with the two supplied screws (use

Figure 5 as a guide).

3. Using the applicable inset in Figure 5, install the relay in the mounting hole, and then secure it with
the four screws removed in step 1.

4. Plug the ribbon connector into the appropriate circuit board connector (see Figure 4).

5. Install the top cover, and then configure the system as covered in “System configuration” on

page 6 of this guide.

Figure 5

Connecting control wires to relays A-D

White (-4)

Orange (-1)

Yellow (-6)

Orange (-1)

Green (-2)

26.5GHz

Un-terminated

Relay

SP4T

-3

-4

+C

-1

S46-U100-350
Control cable

SP6T

-4

-5

-6

-1

+C

S46-U100-350
Control cable

Violet (-3)

-2

Green (-2)

Brown (+28V)

Red (-5)

White (-4)

-3

Violet (-3)

-2

Brown (+28V)

- Terminated Relays

- Un-terminated 18GHz Relays

Plug in cable securing
with the supplied
screws.

Terminated
Relays

Un-terminated
18GHz Relays

XFER Relay

BN OR

(+) ()

Transfer

Relay

S46-U100-350

Control cable

MSPDT Relay

S40-N410-309

(+)

(+)

Relay
(RL-308 or
S40-0154 )

S46-U100-350
Control cable

(S40-N410-313)

BNBNOR

()

()

GN

Spacer

5 PA-913 Rev. A / 12-05

Figure 6

A-D relay installation

Cover plate

System configuration

After installing the new relays, you must program the S46T for the new relay configuration with the following
command:

:ROUT:CONF:CPOL <clist>

<clist> is defined as follows:
clist = (@0 | 3-6, 0 | 3-6, 0 | 3-6, 0 | 3-6, 0 | 1, ... 0 | 1)

Relay: A B C D 1 ... 8

NOTE: All switch locations must be included in the <clist> whether or not all locations

are populated. The numeric value (1 or 3-6) indicates the number of throws,
while a value of 0 indicates that a location is not populated.

For example, if RELAY A and RELAY B are SP6T, RELAY 1 and RELAY 2 are
SPDTs, and all other locations are not populated, the command syntax would
be:

:ROUT:CONF:CPOL (@6,6,0,0,1,1,0,0,0,0,0,0)

S46T-MSPDT-KIT and S46T-XFER- KIT are programmed with a value of 3 (not the number of throws as
other relays). The MSPDT top relay uses the first channel assignment for relay's A-D, the second channel
controls the lower relay. The XFER relay uses the first channel assignment for relay's A-D.

Terminated SP4T relays are programmed with a value of 6. Ports 2, 3, 5 and 6 control channels are used.
See Section 3 of the S46T Instruction Manual for detailed programming information.

PA-913 Rev. A / 12-05 6