Racal Instruments 1260 User manual

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1260 VXI
SWITCHING CARD
1260-18
HIGH DENSITY BASIC
SWITCH
PUBLICATION NO. 980673-040
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 28, 1999
Copyright 1999 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.

This page was left intentionally blank.

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 1260-18
The following information describes the control-register-to-relay-channel mapping for a 1260-18 Relay Module.
This information may be used to control a 1260-18 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
40 5 0
41 5 1

Channel Control Register Control Bit
42 5 2
43 5 3
44 5 4
45 5 5
46 5 6
47 5 7
48 6 0
49 6 1
50 6 2
51 6 3
52 6 4
53 6 5
54 6 6
55 6 7
56 7 0
57 7 1
58 7 2
59 7 3
60 7 4
61 7 5
62 7 6
63 7 7
64 8 0
65 8 1
66 8 2
67 8 3
68 8 4
69 8 5
70 8 6
71 8 7
72 9 0
73 9 1
74 9 2
75 9 3
76 9 4
77 9 5
78 9 6
79 9 7
80 10 0
81 10 1
82 10 2
83 10 3
84 10 4
85 10 5
86 10 6
87 10 7
88 11 0
89 11 1
90 11 2
91 11 3
92 11 4
93 11 5
94 11 6
95 11 7
96 12 0
97 12 1
98 12 2
99 12 3
100 12 4
101 12 5
102 12 6
103 12 7
104 13 0
105 13 1
106 13 2

Channel Control Register Control Bit
107 13 3
108 13 4
109 13 5
110 13 6
111 13 7
112 14 0
113 14 1
114 14 2
115 14 3
116 14 4
117 14 5
118 14 6
119 14 7
120 15 0
121 15 1
122 15 2
123 15 3
124 15 4
125 15 5
126 15 6
127 15 7
128 16 0
129 16 1
130 16 2
131 16 3
132 16 4
133 16 5
134 16 6
135 16 7
136 17 0
137 17 1
138 17 2
139 17 3
140 17 4
141 17 5
142 17 6
143 17 7
144 18 0
145 18 1
146 18 2
147 18 3
148 18 4
149 18 5
150 18 6
151 18 7
152* 19 0
153* 19 1
154* 19 2
155* 19 3
156* 19 4
157* 19 5
158* 19 6
159* 19 7
*These control bits exist, but the relays are not normally populated on the module.

User Manual 1260-18
i
Table of Contents
Chapter 1
MODULE SPECIFICATION..........................................................................................................1-1
Module Specification................................................................................................................. 1-1
Specifications............................................................................................................................1-2
Ordering Information................................................................................................................. 1-3
Safety........................................................................................................................................1-4
Product Support........................................................................................................................ 1-4
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 OPERATION ................................................................................................................3-1
Module Configuration................................................................................................................ 3-1
Front Panel Connectors......................................................................................................... 3-1
Mating Connectors.............................................................................................................3-1
1260-18 Module Specific Syntax............................................................................................ 3-2
1260-18 Relay Descriptors................................................................................................. 3-2
1260-18 INCL Command ...................................................................................................3-4
CLOSE Command .............................................................................................................3-6
OPEN Command ...............................................................................................................3-7
EXCL Command................................................................................................................ 3-7
PDATAOUT and PSETUP Module Identification................................................................3-8
PDATAOUT Command......................................................................................................3-9
PSETUP Command......................................................................................................... 3-10

User Manual 1260-18
ii
Chapter 4
DRAWINGS ................................................................................................................................. 4-1
Chapter 5
PARTS LIST................................................................................................................................. 5-1
Chapter 6
OPTIONAL HARNESS ASSEMBLIES.......................................................................................... 6-1
Chapter 7
PRODUCT SUPPORT ................................................................................................................. 7-1
Product Support........................................................................................................................ 7-1
Reshipment Instructions ........................................................................................................... 7-1
Support Offices......................................................................................................................... 7-2

User Manual 1260-18
iii
List Of Figures
Figure 1-1, 1260-18 High Density Basic Switch............................................................................ 1-1
Figure 3-1, Module Configuration Block Diagram ....................................................................... 3-11
Figure 3-2, 1260-18 Pin Connections, Front View....................................................................... 3-12
List of Tables
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping........................................ 3-13
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-14
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-15
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-16
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-17
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-18
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-19
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-20
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-21
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-22
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-23
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-24
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-25
Table 3-1. 1260-18 Channel Number/Connection Pin/Cable Mapping (Continued)..................... 3-26

User Manual 1260-18
iv
This page was left intentionally blank.

User Manual 1260-18
Module Specification 1-1
Chapter 1
MODULE SPECIFICATION
Module
Specification The 1260-18 high density basic switch is a 152 channel single-wire
device capable of being configured in many ways. For example, it
can be configured as 152 SPST switches, or 76 SPDT switches, or
50 SP3T switches, etc. It can also be configured as any
combination of switches. For example, it could have 10 SP8T's, 5
SP6T's, 10 SP2T's and 22 SPST's.
Figure 1-1, 1260-18 High Density Basic Switch

User Manual 1260-18
Module Specification 1-2
Specifications Maximum Switch Power 125VA, 60W
Maximum Switch Voltage 250VAC, 220VDC
Maximum Switch Current 2A AC, 2A DC
Bandwidth (50Ω) > 50MHz
Insertion Loss (50Ω) < 3dB @ 50MHz
< 2dB to 10MHz
< 1dB to 1MHz
Crosstalk (50Ω) < -60dB to 100kHz
< -50dB to 1MHz
< -40dB at 10MHz
Isolation (50Ω) > 70dB to 100kHz
> 60dB to 1 MHz
> 50dB at 10 MHz
Path Resistance < 0.75Ω
Thermal EMF < 20µV
Impedance
Input-Chassis > 2000MΩ
Output to Chassis > 2000MΩ
Characteristic Impedance 50ΩNominal
Capacitance
Input to Chassis < 5pF
Output to Chassis < 5pF
Temperature
Operating 0oC to +55oC
Non-Operating -40oC to +71oC
Relative Humidity 95 +/-5% RH Non-Condensing
<30oC75+/-5 % RH > 30oC
45+/-5 % RH > 40oC
AltitudeOperating 10,000 ft
Non-Operating 15,000 ft
Vibration 0.013" double amplitude, 5-55Hz
Shock, functional 30g, 11 msec, ½ sine wave

User Manual 1260-18
Module Specification 1-3
Bench Handling 4 inch drop
Cooling Requirement
Without Option 01 installed
Airflow 1.0 liters/sec
Backpressure 0.05mm H20
With Option 01 installed
Airflow 2.0 liters/sec
Backpressure 0.2mm H20
Power Requirement
Without Option 01 installed
+5V Static Current, Ipm 0.4A
+5V Dynamic Current, Idm 0.075A
With Option 01 installed
+5V Static Current, Ipm 2.5A
+5V Dynamic Current, Idm 0.225A
+24V Static Current, Ipm 6mA per energized relay
+24V Dynamic Current, Idm 0A
MTBF >55,000 Hours (per MIL-HBK-217, ground benign, +30°C)
WeightWithout Option 01 installed 3.2lb (1.45kg)
With Option 01 installed 3.5lb (1.60kg)
Minimum Option 01 Firmware Revision 29.1 (T)
Ordering
Information Listed below are part numbers for both the 1260-18 Switch Module
and available mating connector accessories (see also Chapter 3).
Each switch card uses 2 mating connectors.
Item Description Part #
1260-18 Switch Module 152 Channel SPST, 1 Amp 407493
160-Pin Mating Connector 160-Pin Conn. Kit w/backshell and pins 407407
Cable Assy, 6ft, sleeved 160-Pin Cable Assy, 6ft, 24GA 407408
Cable Assy, 12ft, sleeved 160-Pin Cable Assy, 12ft, 24GA 407409
Additional Manual 980673-040

User Manual 1260-18
Module Specification 1-4
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 Racal Instruments has a complete Service and Parts Department.
If you need technical assistance or should it be necessary to return
your product for servicing, call 1-800-722-3262 or 1-949-859-8999
and ask for Customer Support. You may also contact Customer
Support via E-Mail at:
[email protected]
If parts are required to repair the product at your facility, call 1-
800-722-3262 or 714-859-8999 and ask for the Parts Department.
When sending your instrument in for repair, complete the form in
the back of this manual and enclose it with the instrument.

User Manual 1260-18
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 instrument from its carton, preserving the factory
packaging as much as possible.
3. Inspect the switching 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 packing material when returning the
switching module to Racal Instruments for calibration or
servicing. The original shipping carton and the instrument's
plastic foam will provide the necessary support for safe
reshipment.
2. If the original packing material is unavailable, wrap the
switching module in ESD Shielding and use plastic spray
foam to surround and protect the instrument.
3. Reship in either the original or a new shipping carton.

User Manual 1260-18
Installation Instructions 2-2
Option 01
Installation Installation of the Option 01 to the 1260-18 is described in the
Installation section of the 1260 Series VXI Switching Cards
Manual, under the Option 01 installation section..
Module
Installation Installation of the 1260-18 Switching Module into a VXI mainframe,
including the setting of switches SW1-1 through SW1-4, SW2 and
SW3, is described in the Installation section of the 1260 Series
VXI Switching Cards Manual. Configuration of switches SW1-5
and SW1-6 must be configured in the OFF state.

User Manual 1260-18
Module Specific Syntax 3-1
Chapter 3
MODULE OPERATION
Module
Configuration The 1260-18 is a 152 channel single wire module consisting of 152
individual SPST relay switches. These individual relays allow the
1260-18 module to be configured via software in any configuration
from 152 - SPST’s to 1 - 152PST or any combination thereof (by
use of include command) without the use of hardware jumpers.
This is the same as being automatically configurable as a 1-wire,
2-wire, ... n-wire switch.
Reference should be made to Figure 3-1, 1260-18 Module
Configuration Block Diagram
Front Panel
Connectors
The 1260-18 front panel connectors are labeled J200 and J201.
The connector type is 5 x 32 (160-pin) DIN 41 612 male. Figure 3-
2shows the pin numbering. Signal ground pins are provided for
terminating shields and to allow the use of coaxial cable when
using higher frequency signals (i.e., above 10MHz). The mapping
of channel numbers to connector pins and the available mating
connector cable is given in Table 3-1.
Mating Connectors Mating connectors are available for the 1260-18 module. Racal
Instruments also offers the following accessories for mating
connectors (see ordering information for part numbers):
•160-Pin Connector Kit w/ backshell and pins P/N 407407
•160-Pin Cable Assy, 6ft, 24GA P/N 407408
•160-Pin Cable Assy, 12ft, 24GA P/N 407409
The 160-Pin Connector kit consists of a connector housing,
customized backshell and 170 crimp pins. The backshell design
has been optimized for system integration. The connector kit has
been designed for 22 to 26 gauge cable. The crimp pin will lock or
‘click’ into the connector housing only when installed correctly. The
assembler should ensure that the crimp pin is locked by tugging