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1260-60
User Manual
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Racal Instruments 1260-60, 1260, 1260 VXI User Manual

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SM
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Instra
1260 VXI
SWITCHING CARD
1260-60
18GHz MICROWAVE
SWITCH MODULE
PUBLICATION NO. 980673-011
RACAL INSTRUMENTS
Racal Instruments, Inc.
Tel: (800) RACAL-ATE, (800) 722-2528, (949) 859-8999; FAX: (949) 859-7139
4 Goodyear St., Irvine, CA 92618-2002
480 Bath Road, Slough, Berksh i re, SL1 6BE, United Kingdom
Tel: +44 (0) 1628 604455; FAX: +44 (0) 1628 662017
18 Avenue Dutartre, 78150 LeChesnay, France
Tel: +33 (1) 3923 2222; FAX: +33 (1) 3923 2225
Strada 2-Palazzo C4, 20090 Milanofiori Assago, Milan, Italy
Tel: +39 (0)2 5750 1796; FAX +39 (0)2 5750 1828
Technologiepark Bergisch Gladbac h, Friedrich-Ebert-Strasse, D-51429 Bergisch Gladbach, Germany
Tel.: +49 2204 8442 00; FAX: +49 2204 8442 19
3 Powells Road, Brookvale, NSW 2100, Australia
Tel: +612 9936 7000, FAX: +612 9936 7036
26 Ayer Rajah Crescent, 04-06/07 Ayer Rajah I ndustrial Estate, Singapore 0513.
Unit 5, 25F., Mega Trade Center, No 1, Mei Wan Road, Tsuen Wan, Hong Kong, PRC
Tel: +852 2405 5500, FAX: +852 2416 4335
Racal Instruments, Ltd.
Racal Systems Electronique S.A.
Racal Systems Elettronica s.r.l.
Racal Elektronik System GmbH.
Racal Australia Pty. Ltd.
Racal Electronics Pte. Ltd.
Tel: +65 7792200, FAX: +65 7785400
Racal Instruments, Ltd.
http://www.racalinstruments.com
Copyright 2001 by Racal Instruments, Inc. Printed in the United States of America. All rights reserved.
This book or parts thereof may not be reproduced in any form without written permission of the publisher.
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PUBLICATION DATE: May 8, 2001
WARRANTY STATEMENT
All Racal Instruments, Inc. products are designed and manufactured to exacting standards and in full conformance to Racal’s ISO 9001 procedures.
For the specific terms of your standard warranty, or optional extended warranty or service agreem ent, contact your Racal customer service advisor. Please have the following information available to facilitate service.
1. Product serial number
2. Product model number
3. Your company and contact information
You may contact your customer service advisor by:
E-Mail: Helpdesk@racalinstruments.com Telephone: +1 800 722 3262 (USA)
+44(0) 8706 080134 (UK) +852 2405 5500 (Hong Kong)
Fax: +1 949 859 7309 (USA)
+44(0) 1628 662017 (UK) +852 2416 4335 (Hong Kong)
RETURN of PRODUCT
Authorization is required from Racal Ins truments before you send us your product for service or calibration. Call your nearest Racal Instruments suppor t facility. A list is located on the las t page of this m anual. If you are unsure where to call, contact Racal Instrum ents, Inc. Custom er Support Depar tment in Ir vine, California, USA at 1-800-722-3262 or 1-949-859-8999 or via fax at 1-949-859-7139. We can be reached at:
helpdesk@racalinstruments.com.
PROPRIETARY NOTICE
This document and the tec hnical data herein disclosed, are proprietary to Racal Instrum ents, and shall not, without express written permission of Racal Instr um ents, be us ed, in whole or in part to s olicit quotations f rom a competitive source or used for m anufacture by anyone other than Racal Instruments . T he information herein has been developed at private expense, and may only be used for operation and maintenance reference purposes or for purposes of engineering evaluation and incor poration into technical specifications and other documents which specify procurement of products from Racal Instruments.
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FOR YOUR SAFETY
Before undertaking any tr oubleshoot ing, maintenance or exploratory procedure, read carefully the WARNINGS and CAUTION notices.
This equipment contains voltage hazardous to hum an life and safety, and is capable of inflicting personal injury.
If this instrument is t o be powered from the AC line (mains) through an autotransform er , ensure the common connector is connected to the neutr al ( ear t h pole) of the power supply.
Before operating the unit, ensure the conductor (green wire) is connected to the ground (earth) conductor of the power outlet. Do not use a two-conductor extension cord or a three-prong/two­prong adapter. This will defeat t he pr otective feature of the third conductor in the power cord.
Maintenance and calibration procedures sometimes call for operat ion of the unit with power applied and protective covers removed. Read the procedures and heed warnings to avoid “live” circuit points.
Before operating this inst r um ent:
1. Ensure the instrument is configured to operate on the voltage at the power source. See Installation Section.
2. Ensure the proper fuse is in place for the power source to operate.
3. Ensure all other devices connected to or in proximity to this instrument are properly grounded or connected to the protective third-wire earth gr ound.
If the instrument:
- fails to operate satisfactorily
- shows visible damage
- has been stored under unfavorable conditions
- has sustained stress
Do not operate until perform ance is checked by qualified personnel.
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NOTE FOR SYSTEMS WITH 1260-OPT 01T
The “Module-Specific Syntax” section of this manual shows the command syntax f or the 1260-01S Smart Card. If you are using the newer 1260-01T Smart Card, the commands will NOT work as shown.
Consult the 1260-01T Manual for a description of t he com mands which may be used with the 1260­01T Smart Card.
The channel numbers described in this manual are valid for the 1260-01T. The channel numbers continue to be used for the 1260-01T.
The syntax of the commands which use channel numbers has changed for those cards controlled by the 1260-01T.
The new syntax used to close a channel is:
CLOSE (@ <module address> ( <channel> ) )
For example, with for a relay module whose <module address> is set to 7, closing <channel> 0 is performed with the command:
CLOSE (@ 7 (0))
Using the older 1260-01S, the command would be (as shown in this manual):
CLOSE 7.0
Many other command syntax differences exist. Please consult chapter 2 of the 1260-01T manual for a description of the commands which are available for the 1260-01T.
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6/98 Addendum Page 1
Control Information for the 1260-60
The following information describes the control-register-to-relay-channel mapping for a 1260-60 Relay Module. This information may be used to control a 1260-60 when using a 1260-01T in the register-based mode of operation.
There are two types of relays which populate the 1260-60 module. T he standard relays (channels 0 through
111), are each controlled by a single bit within an 8-bit Control Register. Each of these relays is controlled by setting or clearing a single bit within a Control Register. Control Registers on the m odule operate 8 channels simultaneously. There are eight control bits per Control Register. Setting the bit to a 1 closes the relay; setting the bit to a 0 opens the relay.
The RF relays (channels 200, 201, and 202) are each contr olled by 2 bits. Each of these relays is a latching relay. One bit is pulsed to set the relay to the OPEN state, in which the COM output is connected to the normally closed input. A different bit is pulsed to set the relay to the CLOSED state, where the COM output is connected to the normally open input. An OPEN or CLOSE control bit must be set high for a minimum of
15 milliseconds before it is deasserted to ensure that the latching relay is actuated.
The table below shows the mapping from logical channels to control bits. The logical channels are used when operating the relay module in message-based m ode. The control bits within the Contr ol Registers are used to operate the module in register-based mode.
Each Control Register is located 2 addresses from the previous Control Register. That is, each Control Register is located at an odd address. T his is shown in Table 2- 2 of the 1260-01T m anual. Control Register 0 is located at the “Base A24 Address” for the module. Consult the “ Register-Based Operation” Section of Chapter 2 of the 1260-01T manual for a description of calculating control register addresses.
Channel Control Register Control Bit
003 107 213 317 423 527 633 737 802
906 10 1 2 11 1 6
100 0 1 101 0 5 102 1 1 103 1 5 104 2 1 105 2 5 106 3 1 107 3 5 108 0 0 109 0 4 110 1 0 111 1 4 200 4 0 (CLOSE)
201 4 2 (CLOSE) 202 4 4 (CLOSE)
1 (OPEN) 3 (OPEN) 5 (OPEN)
6/98 Addendum Page 2
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User Manual 1260-60A/B
Table of Contents
Chapter 1
INTRODUCTION................................................................................................................... ...... 1-1
1260-60A/B Module Specification.............................................................................................. 1-1
Specifications............................................................................................................................1-2
1X12 Switch Arrays Specifications ............................................................................................1-3
General .....................................................................................................................................1-4
Chapter 2
INSTALLATION INSTRUCTION..................................................................................................2-1
Unpacking and Inspection.........................................................................................................2-1
Reshipment Instructions............................................................................................................2-1
Option 01 Installation.................................................................................................................2-1
Module Installation.....................................................................................................................2-1
Relay Bank Configuration.......................................................................................................... 2-2
Sink/Source Configuration.....................................................................................................2-2
Power - Bank A......................................................................................................................2-2
Power - Bank B......................................................................................................................2-2
Chapter 3
MODULE SPECIFIC SYNTAX.....................................................................................................3-1
1260-60A/B Syntax....................................................................................................................3-1
Commands............................................................................................................................3-2
OPEN.................................................................................................................................3-2
CLOSE...............................................................................................................................3-2
PDATAOUT........................................................................................................................3-2
PSETUP .............................................................................................................................3-3
SETUP...............................................................................................................................3-3
Standard Features.................................................................................................................3-3
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i
User Manual 1260-60A/B
Chapter 4
CONNECTOR PIN CONFIGURATION........................................................................................ 4-1
RF Relays ................................................................................................................................. 4-1
Relay Banks.............................................................................................................................. 4-1
Chapter 5
THEORY OF OPERATION.......................................................................................................... 5-1
PCB Assemblies ....................................................................................................................... 5-1
Chapter 6
DRAWINGS ................................................................................................................................ 6-1
Chapter 7
PARTS LIST................................................................................................................................ 7-1
Chapter 8
OPTIONAL HARNESS ASSEMBLIES.........................................................................................8-1
Chapter 9
PRODUCT SUPPORT.................................................................................................................9-1
Product Support........................................................................................................................ 9-1
Reshipment Instructions........................................................................................................ .... 9-1
Support Offices.........................................................................................................................9-2
ii
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User Manual 1260-60A/B
List of Figures
Figure 1-1, 1260-60 ......................................................................................................................1-1
Figure 4-1, 1260-60A/B Front Panel.............................................................................................4-2
Figure 4-2, Relay Bank Pin Configuration.....................................................................................4-3
Figure 4-3, Internal Supply Sink Driver Example...........................................................................4-4
Figure 4-3, External Supply Sink Driver Example..........................................................................4-4
Figure 4-3, Internal Supply Source Driver Example ...................................................................... 4-5
Figure 4-3, External Supply Source Driver Example .....................................................................4-5
List of Tables
Table 4-1, 1260-60A,B Pin Assignments ......................................................................................4-3
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iii
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User Manual 1260-60A/B
iv
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User Manual 1260-60A/B
Chapter 1
INTRODUCTION
1260-60A/B Module Specification
The 1260-60A,B consists of thr ee 1P2T, 18GHz switches and two 1X12 switches. The 1x12 switches are used to drive external relays, although other applications are possible.
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Figure 1-1, 1260-60
Introduction 1-1
Specifications
User Manual 1260-60A/B
Frequency Range DC to 180Hz Maximum Continuous Wave
Power per Channel (Cold Switching)
100MHz 400W 10Hz 150W 100Hz 50W 180Hz 40W
User Connectors on Module
SMA - Caution: Mating connector engagement should not exceed 9in. lbs. torque maximum. Recommended Torque Wrench: Wiltron Model 01-
201, 8in. lbs. RF Impedance Termination
50Ω, nominal
50Ω, nominal (1260-60B only) Insertion Loss, dB Max 0.2 DC-4GHz
0.3 40Hz- 80Hz
0.4 80Hz- 12GHz
0.5 120Hz- 180Hz
Isolation, dB Mm 80 DC-4Ghz
70 4GHz-8Ghz
60 8 0Hz - 18GHz
Introduction 1-2
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VSWR, Max 1.2:1 DC-4GHz
1.3:1 4GHz-8Ghz
1.4:1 8GHz-12Ghz
1.5:1 12GHz-18GHz
Minimum Option 01
Hardware Revision 401901-005 Rev. B
Minimum Option 01
Firmware Revision
231417-001, Rev. D
231417-002, Rev. D
User Manual 1260-60A/B
1X12 Switch Arrays Specifications
User Connector 34-Pin Connector. Body Part
#601855-034, Solder Type Pins
#601857 Number of Banks 2 Number of Switches per Bank 12, 1-wire Relay Driver Configurations
(User Configurable)
(External flyback-suppression diodes are req uir ed when switching inductive loads.)
Maximum Total VXI Current Available to Drive External Loads +24V
+12V +5V
Maximum Current per Bank 2A (Internal or External Supply) Maximum Current per Switch .5A
Source Driver, External Supply
Source Driver, VXI +5V Supply
Source Driver, VXI +12V Supply
Source Driver, VXI +24V Supply
Sink Driver, External Supply
Sink Driver, VXI +5V Supply
Sink Driver, VXI +12V Supply
Sink Driver, VXI +24V Supply
.75A (May be further limited by
mainframe capability)
1A (May be further limited by
mainframe capability)
2A (May be further limited by
mainframe capability)
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Maximum Switchable Voltage 30V, DC Only Maximum Switchable Power 30W Path Resistance
Worst Case End of Life
<1.8Ω
<2.7Ω
Introduction 1-3
General
User Manual 1260-60A/B
Power Requirements (Ipm) +5V
0.4A (2.8 A with Option 01 installed) plus current drawn by external loads on 1x12 relay banks
+12V
60mA per energized microwave relay (-60A) 130mA per energized microwave relay (­60B)
+24V
10mA per relay (energized) plus current drawn by external loads on 1x12 relay banks
Cooling Requirements Airflow 4.0 L/S at 0.5rnm of H
Weight 3.7 lbs (1.67 Kg)
4.0 lbs (1.81 Kg) Option 01 installed
O
2
Introduction 1-4
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User Manual 1260-60A/B
Chapter 2
INSTALLATION INSTRUCTION
Unpacking and Inspection
Reshipment Instructions
1. Before unpacking the switching module, check the exter ior
of the shipping carton f o r any signs of damage. All irregularities should be noted on the shipping bill.
2. Remove the instrument from its carton, preserving the
factory packaging as much as possible.
3. Inspect the switching module for any defect or damag e.
Notify the carrier immediately if any damage is apparent.
4. Have a qualified person check the instrument f or safety
before use.
1. Use the original packing if it is necessary to return the
switching module to Racal Instruments for calibration or servicing. The original shipping car t on and the instrument's plastic foam will provide the necessary support for safe reshipment.
2. If the original packing is unavailable, wrap the switching
module in plastic sheeting and use plastic spray foam to surround and protect the instrument.
Option 01 Installation
Module Installation
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3. Reship in either the original or a new, sturdy shipping
carton.
Installation of the Option 01 into the 1260-60A,B is described in the Installation section of the 1260- Ser ies VXI Switching Cards Manual.
Installation of the 1260-60A,B Switching Module into a VXI mainframe, including t he set ting of DIP switches, is described in the Installation section of the 1260 Ser ies VX I Switching Cards Manual. The ID byte DIP switches should be set as follows:
Installation Instructions 2-1
User Manual 1260-60A/B
1260-60 (A or B) 5=ON 6=ON
Note that incorrect setting of the ID byte DIP switches will cause an incorrect module ID to be reported to the user in response to a PDATAOUT command. All other module functionality is unaffected by the setting of the ID byte switches.
Relay Bank Configuration
Sink/Source Configuration
If two banks of DC relays are to be used, various internal jumpers must be installed. Examples of four possible configurations are shown in Figures 4-3 t hr ough 4-6. The card is shipped from the factor y without any jumpers inst alled.
To access the jumpers, remove the right side cover from the module. The jumpers are located on t he large PCB Assembly. There are two banks of relays. Each bank is configured independently, and the two configurations do not have to matc h. The banks are designated Bank A and Bank B.
A sink driver connects its output to g r ound to energize a load; a source connects its output to B+ to energ ize a load. Eight push­on jumpers are to be installed as shown below:
Bank A Source Driver:W5 Bank A Sink Driver: W6 Bank B Source Driver:W11 Bank B Sink Driver: W12
Power - Bank A
Power - Bank B
Installation Instructions 2-2
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If an external supply is to be used, the jumpers at locat ions W3 and W4 are to be removed. If the VXI +5 V supply is to be used, eight jumpers are to be installed at locat ion W3 (1-2, 3-4, 5-6, etc.). If the VX I +12 V supply is to be used, three jumpers are to be installed at location W 4 ( 1-2, 3-4, and 5-6). If the VXI +24 V supply is to be used, the three jumpers are to be inst alled at location W4 (11- 12, 13- 14, 15-16).
If an external supply is to be used, the jumpers at locat ions W8 and W9 are to be removed. If the VXI +5 V supply is to be used, eight jumpers are to be installed at locat ion W8 (1-2, 3-4, 5-6, etc.). If the VX I +12 V supply is to be used, three jumpers are to be installed at location W 9 ( 1-2, 3-4, and 5-6). If the VXI +24 V supply is to be used, three jumpers are to be installed at locat ion W9 (11-12, 13-14, 15-16).
User Manual 1260-60A/B
The right cover can now be reinstalled on the module.
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Installation Instructions 2-3
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User Manual 1260-60A/B
Installation Instructions 2-4
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User Manual 1260-60A/B
Chapter 3
MODULE SPECIFIC SYNTAX
1260-60A/B Syntax
The Module Specific Syntax for the 1260-6A,B module is as follows:
<mod addr>.<bank no><relay no> where <mod addr> is the address of the 1260-60A,B.
NOTE
The <mod addr> used here is NOT the VXIbus defined logical address of the 1260 Series Master. I t is peculiar to the 1260 Series and describes the switching module in rel at ion to the 1260 Master. This address corresponds to the binary value of the switch setting of SW1 on the switching module PCB.
<bank no> is a reference to the bank of the relay to be switched. It is a single digit number.
The <bank no> refers to t he following relay banks:
0 1x12BankA 1 1x12BankB 2 1x2 Relays S1, S2, S3
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<relay no> refers to the relay to be operated. This is a two-digit number. For Bank A and Bank B, t his value must be between 00 and 11. For relay S1 it is 00, for S2-01, and for S3-02. Note the leading 0 for relays 00 throug h 09 is r e quired.
Refer to Figures 4-1, 4-2, and Table 4-1 for banks, relay numbers, and connector pins for the 1260- 60A,B module.
If more than one connection is to be made or br oken on the 1260-60A,B with contiguous relays, the following format is supported:
<mod addr>.<bank no><relay no>-<bank no><relay no> Multiple groups of relays can be specified on a single com m and
Module Specific Syntax 3-1
User Manual 1260-60A/B
line by separating the path designators by commas. Com mand lines terminate at the end of t he line.
Commands
OPEN
CLOSE
The Module Specific Syntax for the 1260-60A,B is required for use in the OPEN and CLOSE commands. It will also appear in data output by the 1260 Series Master in response to the PDATAOUT command.
For OPEN, the syntax is: OPEN <mod addr>.<bank no><relay no>-<bank no><relay no> Example: OPEN 3.000,004-011,100-111,201,203
For CLOSE, the syntax is: CLOSE <mod addr>.<bank no><relay no>-<bank no><relay no> CLOSE 3.000,004-011,100-111,201,203
PDATAOUT
The PDATAOUT command causes the specified module to transmit the CLOSED state of the relays in the 1260-60A,B module. The syntax used is:
PDATAOUT <mod addr>[;<mod addr>][;<mod addr>]....
The response to the PDATAOUT command for the 1260-60A,B is as follows:
<header> <mod addr>. <bank no><group no>[,...] <bank no><group
no>[,...] <mod addr>.END where <header> is as follows: 1260-60A,B: <mod addr>. 1260-60A,B Triple SPDT
MICROWAVE SWITCHING MODULE Note the actual <header> sent is determined by the setting of the
ID Byte DIP switches on the module.
Module Specific Syntax 3-2
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User Manual 1260-60A/B
PSETUP
The PSETUP command causes the specified m odule to transmit its sequence mode. The supported seq uence m odes ar e I MM (Immediate), BBM (Break- Before-Make), and MBB (Make­Before-Break). The syntax used is:
PSETUP <mod addr>[;<mod addr>][;<mod addr>]....
The response to the PSETUP command for the 1260-60A,B is as follows:
<header> <mod addr>.<seq mode> <mod addr>.END where <seq mode> is IMM, BBM, or MBB, and where <header> is as follows: 1260-60A,B: <mod addr>. 1260-60A,B Triple SPDT
MICROWAVE SWITCHING MODULE Note the actual <header> sent is determined by the setting of the
ID Byte DIP switches on the module.
SETUP
Standard Features
The SETUP command affects only the DC relays in Banks A and B. These relays may be programmed as Break-Before-Make, Make-Before-Break, or I m mediate. The microwave relays (S 1 through S3) are always implemented as Break- Before-Make (BBM).
The 1260-60A,B supports most standard 1260 features. These include Confidence Mode, Equate/Exclude/Scan Lists commands, and the STORE/RECALL commands.
WARNING
The state of the RF relays should NOT be changed when a signal is present. The relays should be "cold-switched" onl y. The recommended procedure for ensuring that an OPEN or CLOSE command has been completed is as follows:
1. Enable the confidence mode for the relays. This is done by
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Module Specific Syntax 3-3
User Manual 1260-60A/B
sending the command:
CNF ON
2. Each time a relay is opened or closed, ensure the operation is complete using the following procedure:
a. Send t he OPEN or CLOSE command, e.g.:
OPEN 3.200
b. Send the YERR command to read back the error
YERR
c. Read the error result. The error result should be:
error 000.00
Module Specific Syntax 3-4
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User Manual 1260-60A/B
Chapter 4
CONNECTOR PIN CONFIGURATION
RF Relays
Relay Banks
Figure 4-1 shows the location of the three RE switches on the front panel of the 1260-60A,B module.
Figure 4-2 shows the pin locations for the 34-pin Relay Bank connector, 31. Table 4-1 lists the 31 pin signals. Connector 31 is Racal Instruments Part Number 601856- 034. The mating connectors are Racal Instruments Part Num ber 601855-034 for the connector body, and 601857 for the pins.
Each of the two relay banks can be independently configured as a sink or a source driver. Either the VX I mainframe or an external supply can be selected.
WARNING
The user must use caution when wi ring to the module to prevent damage to the relay banks.
The 1260-60A,B contains some internal prot ection circuitry. The internal current sourcing and handling capabilit ies of the module and the mainframe must not be exceeded. Properly interface external loads, especially if they are inductive. If an external supply is used, the external B+ and B- lines MUST be connected to the External B+ and the External Ground pins on 31. flyback­clamping suppression diodes MUST be connected across any inductive loads. Figures 4-3 through 4-6 show correct m ethods interfacing to the 1260-60A,B relay banks.
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Connector Pin Configuration 4-1
User Manual 1260-60A/B
Connector Pin Configuration 4-2
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Figure 4-1, 1260-60A/B Front Panel
User Manual 1260-60A/B
Table 4-1, 1260-60A,B Pin Assignments
Bank A Bank B Pin Function Pin Function A,C External B+ B,D External B+ HH,JJ,KK External Ground HH,JJ,KK External Ground LL,MM,NN External Ground LL,MM,NN External Ground W Contact 0 BB Contact 0 F Contact 1 P Contact 1 V Contact 2 N Contact 2 M Contact 3 H Contact 3 U Contact 4 R Contact 4 z Contact S x Contact 5 DD Contact 6 CC Contact 6 FF Contact 7 AA Contact 7 Y Contact 8 EE Contact 8 L Contact 9 T Contact 9 S Contact 10 J Contact 10 K Contact 11 E Contact 11
AB
CD
EF
H
MN
ST
WX
AA
EE FF
KK
J
KL
PR
U
YZ
CC
HH JJ
MM NN
V
BB
DD
LL
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Figure 4-2, Relay Bank Pin Configuration
Connector Pin Configuration 4-3
User Manual 1260-60A/B
EXTERNAL B+
EXTERNAL GROUND
EXTERNAL RELAY
+5V +12V
212 3
CONTACT 0 CONTACT 1 CONTACT 3 CONTACT 3 CONTACT 4 CONTACT 5 CONTACT 6
212
212
K1 K2 K3 K4 K5 K6 K7
+24V
212
Figure 4-3, Internal Supply Sink Driver Example
EXTERNAL SUPPLY
B+
B-
EXTERNAL RELAY
EXTERNAL B+
212 3
EXTERNAL GROUND
Figure 4-3, External Supply Sink Driver Example
+5V +12V
212
CONTACT 0 CONTACT 1 CONTACT 3 CONTACT 3 CONTACT 4 CONTACT 5 CONTACT 6
+24V
212
K1 K2 K3 K4 K5 K6 K7
212
Connector Pin Configuration 4-4
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EXTERNAL B+
EXTERNAL GROUND
EXTERNAL SUPPLY
B+
B-
+24V
212
EXTERNAL RELAY
+5V +12V
212 3
CONTACT 0 CONTACT 1 CONTACT 3 CONTACT 3 CONTACT 4 CONTACT 5 CONTACT 6
212
212
K1 K2 K3 K4 K5 K6 K7
Figure 4-3, Internal Supply Source Driver Example
+5V +12V
212
212
+24V
212
EXTERNAL B+
212 3
EXTERNAL GROUND
EXTERNAL RELAY
Figure 4-3, External Supply Source Driver Example
K1 K2 K3 K4 K5 K6 K7
CONTACT 0 CONTACT 1 CONTACT 3 CONTACT 3 CONTACT 4 CONTACT 5 CONTACT 6
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Connector Pin Configuration 4-5
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Connector Pin Configuration 4-6
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Chapter 5
THEORY OF OPERATION
PCB Assemblies
The 1260-60A,B consists of two PCB assemblies. The small one is used only to mount connector 31 to the front panel.
The main logic PCB assembly contains DC relay banks, 1260 Local Bus interface circuitry, and drivers for both the relay bank and the RF relays. The VXI interface is described in the Theory of Operation section of t he 1260 Series VXI Switching Cards Manual. The relay driver circuitry is contained in monolithic IC driver chips. The relay banks are shown in Figures 4-3 through 4-6. Not shown in these figures are inter nal clam p diodes. These diodes will clamp minor inductance effects, such as those caused by wiring; but they are not intended to replace suppression diodes across the solenoid coils of external relays, or other inductive loads. Referring to the schematic diagram, the diodes between the contact lines and ground clamp switch-to-­open transients when the bank is used as a source driver. The diodes between the contact lines and the External A+, B+ clamp switch-to-open transients when the bank is used as a sink driver.
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Theory of Operation 5-1
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User Manual 1260-60A/B 5-2
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407157-001, -002, Final Assembly, 1260-60A,B...............................................................6-3
405068, PCB Assembly, Connector Interface ...................................................................6-5
435068, Schematic, Connector Interface ..........................................................................6-6
407159, PCB Assembly, 1260-60A,B................................................................................6-7
435056, Schematic, 1260-64/60/15...................................................................................6-8
Chapter 6
DRAWINGS
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Drawings 6-1
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Drawings 6-2
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Drawings 6-3
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Drawings 6-4
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Drawings 6-5
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Drawings 6-6
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Drawings 6-7
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Drawings 6-8
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Drawings 6-9
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Drawings 6-10
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Drawings 6-11
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Drawings 6-12
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Drawings 6-13
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Drawings 6-14
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Drawings 6-15
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Drawings 6-16
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Drawings 6-17
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Drawings 6-18
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Drawings 6-19
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Drawings 6-20
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Drawings 6-21
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Drawings 6-22
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407157-001, Final Assembly, 1260-60A............................................................................6-3
407157-002, Final Assembly, 1260-60B............................................................................6-4
407158, Ship Kit, 1260-60A/B...........................................................................................6-5
405068, PCB Assembly, Connector Interface ...................................................................6-5
407159, PCB Assembly, 1260-60A,B................................................................................6-6
List of Suppliers.................................................................................................................6-8
Chapter 7
PARTS LIST
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Parts List 7-1
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Parts List 7-4
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Parts List 7-6
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Chapter 8
OPTIONAL HARNESS ASSEMBLIES
The following harness assembly is used to connect Racal Instrum ent s Model 1260-60 to Fr eedom Series Test Receiver Interface.
Each harness documentation consists of an assembly drawing, par t s list , and wire list.
407293, Virginia Panel, Inc. Series VP90 Interface Harness.............................................8-3
For more information on Racal Instruments complete line of Test Receiver Interface Solut ions, contact your Sales Representative.
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Optional Harness Assemblies 8-1
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Optional Harness Assemblies 8-2
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Optional Harness Assemblies 8-4
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Optional Harness Assemblies 8-6
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Optional Harness Assemblies 8-8
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Optional Harness Assemblies 8-9
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Optional Harness Assemblies 8-10
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Chapter 9
PRODUCT SUPPORT
Product Support
Reshipment Instructions
Racal Instruments has a complete Service and Parts Depart ment. If you need technical assistance or should it be necessary to return your product for repair or calibration, call 1-800-722-3262. If parts are req uired to repair the product at your facility, call 1-949-859-8999 and ask for the Par ts Department.
When sending your inst r ument in for repair, complete the form in the back of this manual.
For worldwide support and the office closes to your facilit y, refer to the Support Offices section on the following page.
Use the original packing material when returning the 1260-60A or 1260-60B to Racal Instruments for calibration or servicing. The original shipping crate and associated packaging material will provide the necessary protection for safe reshipment .
If the original packing material is unavailable, contact Racal Instruments Customer Service for information.
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Product Support 9-1
User Manual 1260-60A/B
Support Offices
Racal Instruments, Inc.
4 Goodyear St., Irvine, CA 92618-2002 Tel: (800) RACAL-ATE, ( 8 00) 722- 2528, (949) 859-8999; FAX: (949) 859-7139
Racal Instruments, Ltd.
480 Bath Road, Slough, Berkshire, SL1 6BE, United Kingdom Tel: +44 (0) 1628 604455; FAX: +44 (0) 1628 662017
Racal Systems Electronique S.A.
18 Avenue Dutartre, 78150 LeChesnay, France Tel: +33 (1) 3923 2222; FAX: +33 (1) 3923 2225
Racal Systems Elettronica s.r.l.
Strada 2-Palazzo C4, 20090 Milanofiori Assago, Milan, Italy Tel: +39 (0)2 5750 1796; FAX +39 (0)2 5750 1828
Racal Elektronik System GmbH.
Technologiepark Bergisch G ladbach, Friedrich-Ebert-Strasse, D-51429 Bergisch Gladbach, Germany Tel.: +49 2204 8442 00; FAX: +49 2204 8442 19
Racal Australia Pty. Ltd.
3 Powells Road, Brookvale, NSW 2100, Australia Tel: +612 9936 7000, FAX: +612 9936 7036
Racal Electronics Pte. Ltd.
26 Ayer Rajah Crescent, 04-06/07 Ayer Rajah Indust r ial Est a t e, Singapore 0513. Tel: +65 7792200, FAX: +65 7785400
Racal Instruments, Ltd.
Unit 5, 25F., Mega Trade Center, No 1, Mei Wan Road, Tsuen Wan, Hong Kong, PRC Tel: +852 2405 5500, FAX: +852 2416 4335
Product Support 9-2
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