Racal Instruments 1260 VXI User manual

1260 VXI
SWITCHING CARD
1260-16
POWER SWITCHING
MODULE
PUBLICATION NO. 980673-023
RACAL INSTRUMENTS
Racal Instruments, Inc.
4 Goodyear St., Irvine, CA 92618-2002
Tel: [phone], FAX: [phone]
Racal Instruments, Ltd.
480 Bath Road, Slough, Berkshire, SL1 6BE, United Kingdom
Tel: [phone]; FAX: [phone]
Racal Systems Electronique S.A.
18 Avenue Dutartre, 78150 LeChesnay, France
Tel: [phone]; FAX: [phone]
Racal Systems Elettronica s.r.l.
Strada 2-Palazzo C4, 20090 Milanofiori Assago, Milan, Italy
Tel: [phone]; FAX [phone]
Racal Elektronik System GmbH.
Frankenforster Strasse 21, 51427 Bergisch Gladbach, Germany
Tel:[phone]; FAX: [phone]
Racal Australia Pty. Ltd.
3 Powells Road, Brookvale, NSW 2100, Australia
Tel: [phone], FAX: [phone]
Racal Electronics Pte. Ltd.
26 Ayer Rajah Crescent, 04-06/07 Ayer Rajah Industrial Estate, Singapore 0513.
Tel: [phone], FAX: [phone]
Racal Instruments, Ltd.
Unit 5, 25F., Mega Trade Center, No 1, Mei Wan Road, Tsuen Wan, Hong Kong, PRC
Tel: [phone], FAX: [phone]
http://www.racalinst.com
PUBLICATION DATE: June 27,1998
Copyright 1997 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.

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 agreement, 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: [email protected]
Telephone: [phone] (USA)
[phone] (UK)
[phone] (Hong Kong)
Fax: [phone] (USA)
[phone] (UK)
[phone] (Hong Kong)
RETURN of PRODUCT
Authorization is required from Racal Instruments before you send us your product for service or calibration. Call
your nearest Racal Instruments support facility. A list is located on the last page of this manual. If you are
unsure where to call, contact Racal Instruments, Inc. Customer Support Department in Irvine, 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:
[email protected].
PROPRIETARY NOTICE
This document and the technical data herein disclosed, are proprietary to Racal Instruments, and shall not,
without express written permission of Racal Instruments, be used, in whole or in part to solicit quotations from a
competitive source or used for manufacture by anyone other than Racal Instruments. The 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 incorporation into technical specifications and other documents which
specify procurement of products from Racal Instruments.

FOR YOUR SAFETY
Before undertaking any troubleshooting, maintenance or exploratory procedure, read carefully the
WARNINGS and CAUTION notices.
This equipment contains voltage hazardous to human life and safety, and is capable of inflicting
personal injury.
If this instrument is to be powered from the AC line (mains) through an autotransformer, ensure the
common connector is connected to the neutral (earth 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/two-
prong adapter. This will defeat the protective feature of the third conductor in the power cord.
Maintenance and calibration procedures sometimes call for operation of the unit with power applied
and protective covers removed. Read the procedures and heed warnings to avoid “live” circuit
points.
Before operating this instrument:
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 ground.
If the instrument:
-fails to operate satisfactorily
-shows visible damage
-has been stored under unfavorable conditions
-has sustained stress
Do not operate until performance is checked by qualified personnel.

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Amendment Page 6/98 1
NOTE FOR SYSTEMS WITH 1260-OPT 01T
The “Module-Specific Syntax” section of this manual shows the command syntax for 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 the commands that may be used with the
1260-01T 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 that 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, 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 that are available for the 1260-01T.

Control Information for the 1260-16
The following information describes the control-register-to-relay-channel mapping for a 1260-16 Relay Module.
This information may be used to control a 1260-16 when using a 1260-01T in the register-based mode of
operation.
Each relay on this module is controlled by setting or clearing a single bit within a Control Register. Control
Registers on the module 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 table below shows the mapping from logical channels to control bits. The logical channels are used when
operating the relay module in message-based mode. The control bits within the Control 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. This is shown in Table 2-2 of the 1260-01T manual. 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
000
101
202
303
404
505
606
707
810
911
10 1 2
11 1 3
12 1 4
13 1 5
14 1 6
15 1 7
16 2 0
17 2 1
18 2 2
19 2 3
20 2 4
21 2 5
22 2 6
23 2 7
24 3 0
25 3 1
26 3 2
27 3 3
28 3 4
29 3 5
30 3 6
31 3 7
32 4 0
33 4 1
34 4 2
35 4 3
36 4 4
37 4 5
38 4 6
39 4 7

User Manual 1260-16
i
Table Of Contents
Chapter 1
MODULE SPECIFICATION.......................................................................................................... 1-1
Module Specification................................................................................................................. 1-1
Specifications............................................................................................................................ 1-2
Ordering Information.............................................................................................................. 1-3
Safety.................................................................................................................................... 1-3
Product Support..................................................................................................................... 1-3
Pin Configuration................................................................................................................... 1-3
Chapter 2
INSTALLATION INSTRUCTIONS ................................................................................................ 2-1
Unpacking and Inspection......................................................................................................... 2-1
Reshipment Instructions............................................................................................................ 2-1
Option 01 Installation ................................................................................................................ 2-2
Module Installation .................................................................................................................... 2-2
Chapter 3
MODULE SPECIFIC SYNTAX...................................................................................................... 3-1
1260-16 Module Specific Syntax............................................................................................... 3-1
Syntax ................................................................................................................................... 3-1
CLOSE and OPEN Command ........................................................................................... 3-1
PSETUP Command........................................................................................................... 3-2
PDATAOUT Command...................................................................................................... 3-2
Chapter 4
MODULE CONFIGURATION ....................................................................................................... 4-1
General..................................................................................................................................... 4-1
Connector Pin Configuration.................................................................................................. 4-2

User Manual 1260-16
ii
Chapter 5
DRAWINGS ..................................................................................................................................5-1
Chapter 6
PARTS LIST..................................................................................................................................6-1
Chapter 7
OPTIONAL HARNESS ASSEMBLIES...........................................................................................7-1
Chapter 8
Product Support.........................................................................................................................8-1
Reshipment Instructions ............................................................................................................8-1

User Manual 1260-16
iii
List Of Figures
Figure 1-1, 1260-16...................................................................................................................... 1-1
Figure 1-2, 1260-16 Pin Configuration.......................................................................................... 1-4
Figure 4-1, 1260-16 Relay Diagram.............................................................................................. 4-1
Figure 4-2, 1260-16 J200-J202 Pin Configuration ........................................................................ 4-3
Figure 4-3, 1260-16 Channel........................................................................................................ 4-4
Figure 4-4, 1260-16 Components Per Channel ........................................................................... 4-5
Figure 4-5, 1260-16 Jumper Locations......................................................................................... 4-7
List Of Tables
Table 4-1, 1260-16 "COM, NO and NC" Assignments.................................................................. 4-2
Table 4-1, 1260-16 "COM, NO and NC" Assignments (continued) ............................................... 4-2

User Manual 1260-16
iv
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User Manual 1260-16
Module Specification 1-1
Chapter 1
MODULE SPECIFICATION
Module
Specification The 1260-16 Power Switching module provides 40 independent
channels of SPDT switching. Each channel functions
independently with all paths accessible through the front panel
connectors. Every channel features mounting holes on the printed
circuit board to allow for the addition of one series and two shunt
elements. This permits components, such as fuses and arc
suppressers (for contact protection), or resistors and capacitors
(for filter circuits) to be installed. The circuit board also provides
mounting holes for jumpers to allow up to eight common channels
to be multiplexed. The module permits switching currents of up to
5 amps at 30 volts DC or 250 volts RMS per channel.
Figure 1-1, 1260-16

User Manual 1260-16
Module Specifications 1-2
Specifications Switch Configuration 40 SPDT Relays
User Connector Positronics SMPL 4 FOTO LB
Maximum Switchable Voltage 125 V DC, 250 VAC RMS
Maximum Switchable Current
Per Channel 5 A DC or AC RMS
Maximum Switchable Power
Per Channel 150 W or 1250 VA
Maximum Switchable Power
Per Module 1500 W or 12500 VA
Path Resistance < 200 milliohms
Capacitance Per Independent Channel
Open Channel < 100 pF
Bandwidth, 50ΩTermination > 30 MHz
Isolation, 50ΩTermination 30 dB to 100 kHz
20 dB to 1 MHz
15 dB to 10 MHz
Crosstalk, 50ΩTermination < -40 dB to 100 kHz
< -35 dB to 1 MHz
< -15 dB to 10 MHz
Switching Time 10 milliseconds
Cooling Requirements
Airflow 1.0 liter/sec
Backpressure 0.05 mm of H2O
Cooling Requirements (With Option 01S/T)
Airflow 2.0 liters/sec
Backpressure 0.2 mm of H2O
Power Requirements (I
pm
) +5 V w/o Option 01 = 400 mA
+5 V with Option 01 = 2.5A
+24 V = 10 mA per relay
Weight 1.26 kg (2.77 lbs) without
Option 01
1.41 kg (3.11 lbs) with Option
01

User Manual 1260-16
Module Specification 1-3
Minimum Firmware Revision
Option 01 22.1
Ordering
Information
Module Number Description Part Number
1260-16 40-Channel SPDT 407348
Switch, 5 Amp
Safety Refer to the "FOR YOUR SAFETY" page preceding the Table of
Contents. Follow all NOTES, CAUTIONS and WARNINGS to
ensure personal safety and prevent damage to the instrument.
Product Support Authorization is required from Racal Instruments before you send
us your product for service or calibration. Call your nearest Racal
Instruments support facility. A list is located on the last page of
this manual. If you are unsure where to call, contact Racal
Instruments, Inc. Customer Support Department in Irvine,
California, USA at 1-800-722-3262 for 1-714-859-8999 or via fax
at 1-714-859-7309. We can be reached at:
[email protected].
Pin Configuration The following diagram examines the pin configuration.

User Manual 1260-16
Module Specifications 1-4
Figure 1-2, 1260-16 Pin Configuration

User Manual 1260-16
Installation Instructions 2-1
Chapter 2
INSTALLATION INSTRUCTIONS
Unpacking and
Inspection 1. Before unpacking the switching module, check the exterior of
the shipping carton for any signs of damage. All irregularities
should be noted on the shipping bill.
2. Remove the module from its carton, preserving the factory
packaging as much as possible.
3. Inspect the module for any defect or damage. Immediately
notify the carrier if any damage is apparent.
4. Have a qualified person check the instrument for safety before
use.
CAUTION
Proper ESD handling procedures must always be
used when packing, unpacking or installing any 1260
Series cards. Failure to do so may cause damage to
the unit.
Reshipment
Instructions 1. Use the original packaging when returning the switching
module to Racal Instruments for calibration or servicing. The
original shipping carton and the module's foam will provide the
necessary support for safe reshipment.
2. If the original packaging is unavailable, wrap the module in
ESD protective sheeting and use sufficient cushioning material
(non-static generating) to surround and protect the module.
3. Reship in either the original or a new shipping carton.

User Manual 1260-16
Installation Instructions 2-2
Option 01
Installation Installation of the Option 01 into the 1260-16 is described in the
Installation section of the 1260 Series VXI Switching Cards Manual
(RII P/N 980673-999).
Module
Installation Installation of the 1260-16 Switching Module into a VXIbus
mainframe, including the setting of DIP switches, is described in
the Installation section of the 1260 Series VXI Switching Cards
Manual (RII P/N 980673-999). The ID byte DIP switches, SW1-5
and SW1-6, should be set to OFF.

User Manual 1260-16
Module Specific Syntax 3-1
Chapter 3
MODULE SPECIFIC SYNTAX
1260-16 Module
Specific Syntax The module specific syntax for the 1260-16 is required in the use
of the OPEN and CLOSE commands. It will also appear in the
data output by the Master in response to the PDATAOUT and
PSETUP commands.
Syntax The Module Specific Syntax for the 1260-16 module is as follows:
<module address>.<channel>
where <module address> is the switch card address.
<channel> is the channel number to be switched; the range
of values for <channel> is 00 to 39.
CLOSE and OPEN
Command Example:
For switch card address 9; channel 2
CLOSE 9.02
OPEN 9.02
Note that channels remain closed until opened by an OPEN
command, RESET command, VXI hand or soft reset, or power-off.
NOTE
The <module address> used here is not the VXIbus
defined logical address of the 1260 Master. It is
particular to the 1260 Series, and describes the
switching module in relation to the Master. This
address corresponds to the binary value of the switch
setting of SW1 on the module PCB.

User Manual 1260-16
Module Specific Syntax 3-2
PSETUP Command The PSETUP command causes the specified module setup to be
displayed as a response. The syntax used is:
PSETUP <module address>[;<module address>][;<module
address>]......
where <module address> is the address.
The responses to the PSETUP command for the 1260-16 Power
Switching Module are as follows:
<module address>.1260-16 40 CHANNEL SPDT 5 AMP
RELAY MODULE
<module address>.BBM
<module address>.END
The response to the PSETUP command begins with a header on
the first line. The header describes the model number. The next
line designates the setup mode for scanning, which, by default, is
Break-Before-Make (BBM). The last line containing the "END"
characters denotes no more information to report.
PDATAOUT
Command The PDATAOUT command causes the specified module to
transmit the state of the CLOSED relays (within the switching
module) to the 1260 Controller. The syntax used is:
PDATAOUT <module address>[.<module address>][;<module
address>]......
The responses to the PDATAOUT command are as follows:
<module address>.1260-16 40 CHANNEL SPDT 5 AMP
RELAY MODULE
<module address>.<channel>[,<channel>][,<channel>]......
<module address>.END
The response to the PDATAOUT command consists of a header
on the first line, as with the PSETUP response. The next line
details the channels currently closed on the module, and is blank
when no channels are closed. Again, the last line is denoted by
the "END" string of characters.

User Manual 1260-16
Module Configuration 4-1
Chapter 4
MODULE CONFIGURATION
General The 1260-16 Power Switching module provides 40 independent
channels of SPDT switching. Each channel functions
independently, with all paths accessible through the front panel
connectors. Every channel features mounting holes on the printed
circuit board to allow for the addition of one series and two shunt
elements. This permits components, such as fuses and arc
suppressers (for contact protection), or resistors and capacitors
(for filter circuits) to be installed. The circuit board also provides
mounting holes for jumpers to allow up to eight common channels
to be multiplexed. This can save external wiring when several
channels are switched to the common channel. The module
permits switching currents of up to 5 amps at 30 volts DC or 250
volts RMS per channel.
Caution
Open unit at an ESD static safe work station.
A total of 150 pins are accessible through the front panel
connectors, 18 of which are not used. Each channel is assigned 3
pins: COM, NO and NC, as shown in Figure 4-1.
Figure 4-1, 1260-16 Relay Diagram
The corresponding pin assignments of the 3 pins for each channel
are shown in Table 4-1.

User Manual 1260-16
Module Configuration 4-2
Connector Pin
Configuration
Refer to Figure 4-2 for pin configurations of the front panel
connectors J200 to J202. J200 to J202 are Racal Instruments
Part Number 601856-050. The mating connectors are Racal
Instruments Part Number 601855-050, and mating pins are Racal
Instruments Part Number 601857.
Table 4-1, 1260-16 "COM, NO and NC" Assignments
CHANNEL NO. COM NO NC
0J200-a J200-c J200-Y
1J200-b J200-d J200-Z
2J200-U J200-W J200-S
3J200-V J200-X J200-T
4J200-M J200-P J200-K
5J200-N J200-R J200-L
6J200-E J200-H J200-C
7J200-F J200-J J200-D
8J201-E J201-H J201-C
9J201-F J201-J J201-D
10 J200-BB J200-DD J200-z
11 J200-CC J200-EE J200-AA
12 J200-v J200-x J200-t
13 J200-w J200-y J200-u
14 J200-n J200-r J200-k
15 J200-p J200-s J200-m
16 J201-r J201-t J201-n
17 J201-s J201-u J201-p
18 J201-h J201-k J201-e
19 J201-j J201-m J201-f
20 J201-a J201-c J201-Y
21 J201-b J201-d J201-Z
22 J201-U J201-W J201-S
23 J201-V J201-X J201-T
24 J202-U J202-W J202-S
25 J202-V J202-X J202-T
26 J202-M J202-P J202-K
27 J202-N J202-R J202-L
28 J202-E J202-H J202-C
29 J202-F J202-J J202-D
30 J201-BB J201-DD J201-z
31 J201-CC J201-EE J201-AA
32 J202-BB J202-DD J202-z
33 J202-CC J202-EE J202-AA
34 J202-v J202-x J202-t
35 J202-w J202-y J202-u
36 J202-n J202-r J202-k
37 J202-p J202-s J202-m
38 J202-e J202-h J202-c
39 J202-f J202-j J202-d
Table 4-1, 1260-16 "COM, NO and NC" Assignments (continued)