Agilent Technologies Switch L4445A User Manual

Agilent L4445A  
Microwave Switch/Attenuator Driver  
Data Sheet  
• LXI compliance includes  
built-in Ethernet connectivity  
• Fully-featured graphical  
Web interface  
• Control of most popular  
microwave switches and  
attenuators  
• Expandable with 34945EXT  
and attenuators are supported  
through the distribution boards.  
The distribution boards enable  
fast and easy connection to the  
microwave devices.  
Microwave switch/attenuator  
driver offers support of most  
common microwave switches  
with distribution boards for  
• Distribution boards allow  
for easy wiring  
• Switch read-back capabilities  
easy configuration  
• External power option  
The Agilent L4445A is a LXI  
Class C compliant instrument  
that controls external switches  
and attenuators. With its small  
size and Ethernet connectivity,  
the switch/attenuator driver  
can be placed wherever your  
application needs it.  
for simultaneous switching  
Using this LXI instrument, you’ll  
get all the benefits of an Ethernet  
connection, instrument Web  
server, standard software drivers  
and more. The LXI standard is  
supported by multiple vendors,  
enabling lower cost of test with  
accelerated test integration and  
development.  
• Software drivers for  
most common programming  
environments  
The Agilent L4445A provides  
digital outputs to control  
switches, attenuators, and  
other devices that are typically  
used to route signals in a high  
frequency system. Many of the  
most popular microwave switches  
Agilent Technologies  
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The optional GPIB interface  
has many years of proven  
reliability and can be used  
for easy integration into  
existing applications.  
The L4445A ships with the  
Agilent E2094 I/O Libraries  
Suite making it easy for you to  
configure and integrate instru-  
ments into your system — even  
if your system includes instru-  
ments from multiple vendors.  
Fully-featured graphical Web  
interface makes it easy to set-up  
and troubleshoot your tests from  
anywhere in the world  
Figure 1. The Web interface makes it easy to set up, troubleshoot and maintain  
your test remotely  
TM  
Additionally, since the Web  
server is built into the instru-  
ment, you can access it on any  
operating system that supports  
the Web browser without  
having to install any special  
software. Password protection  
and LAN lockout are also  
provided to limit access for  
additional security.  
IVI and LabVIEW software  
drivers that provide compati-  
bility with the most popular  
development environments:  
The built-in Web browser  
interface provides remote  
access and control of the  
instrument via a Java-enabled  
browser such as Internet  
Explorer. Using the Web  
interface, you can set up,  
troubleshoot, and maintain  
your instrument from remote  
locations.  
• Agilent T&M Toolkit for  
Microsoft Visual Studio®.NET  
and Agilent VEE Pro  
• National Instruments  
LabVIEW, LabWindows/CVI,  
TestStand, and Switch  
Manager  
• View and modify  
instrument setup  
Software for most popular  
programming environments  
Full support for standard pro-  
gramming environments  
• Microsoft C/C++® and  
Visual Basic®  
• Configure switch channels  
and switch pairs  
ensures compatibility and effi-  
ciency. You can use direct I/O  
with the software you already  
have and know, or use standard  
• Open or close switches  
• Send, receive and view  
SCPI commands  
• Define and execute  
switch sequences  
• View error queue  
• Get status reports on  
relay cycle counts, firmware  
revisions, and more  
3
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High-performance switching wherever your application needs it  
Y1150A-Y1155A distribution  
boards ordered separately  
9-pin cable  
Power  
button  
Status LEDs  
34945EXT  
extender holds  
4 distribution  
boards  
User supplied switches and cables  
4
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Product Specifications  
Specifications and Characteristics  
34945EXT switch drive  
64 channels, low side drive mode  
64 channels, TTL drive mode  
Driver off voltage (max)  
Driver off leakage current  
Driver on current (max)  
Driver on voltage (max)  
30 V  
500 uA  
600 mA  
0.5 V @ 600 mA  
Hi output voltage  
Lo output voltage  
Lo input current  
3 V @ Iout = 2 mA  
0.4 V @ Iin = 20 mA  
20 mA  
34945EXT position indicator sense inputs  
Channels  
64  
Lo input voltage (max)  
Hi input voltage (min)  
Input resistance  
0.8 V  
2.5 V  
>100 k@ Vin 5 V  
>20 k@ Vin > 5 V  
30 V  
Maximum input voltage  
34945EXT switch drive power supply (34945EXT powered by 34945A)  
Voltage  
Current  
24 V nominal  
(external power supply  
required for switches  
needing different voltages)  
100 mA continuous +  
200 mA (15 ms pulse,  
25% duty cycle)  
34945EXT external power connection  
LED indicator (Current mode divers)  
Voltage range  
Current limit  
4.75 V to 30 V  
2 A  
Channels  
64  
Supply voltage  
LED drive current  
5 V nominal  
5 mA nominal  
(prog 1-20 mA)  
0.8 V  
Driver compliance voltage  
Maximum 8 34945Ext’s per L4445A  
5
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Product Specifications (continued)  
Memory  
States  
5 instrument states with user label in non-volatile memory  
General specifications  
Power supply  
Universal 100 V to 240 V 10%  
50 Hz to 60 Hz 10% automatically sensed  
15 VA  
Power line frequency  
Power consumption  
Operating Environment  
Full accuracy for 0°C to 55°C  
Full accuracy to 80% R.H. at 40 °C  
Storage environment  
-40°C to 70°C  
Dimensions (H x W x L)  
40.9 x 212.3 x 379.3 mm  
1.61 x 8.36 x 14.93 in  
34945EXT dimensions  
38.1 x 114.3 x 284.5 mm  
1.5 x 4.5 x 11.2 in  
with distribution boards installed  
Weight  
3.6 kg, 8.0 lbs  
Safety conforms to  
EMC conforms to  
Warranty  
CSA, UL/IEC/EN 61010-1  
IEC/EN 61326-1, CISPR 11  
1 year  
6
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Product Specifications (continued)  
Software  
Agilent connectivity  
software included  
Agilent I/O Libraries Suite 14 or greater (E2094N)  
Minimum system requirements  
PC hardware  
Intel Pentium 100 MHz, 64 Mbyte RAM, 210 Mbyte disk space  
Display 800x600, 256 colors, CD-ROM drive  
Operating system1  
Windows 98 SE/NT/2000/XP  
®
Computer interfaces  
Standard LAN 10BaseT/100BaseTx  
Optional IEEE 488.2 GPIB  
Software driver support for programming languages  
Software drivers  
IVI-C and IVI-COM for Windows NT®/2000/XP  
LabVIEW  
Compatible with programming tools and environments  
Agilent  
VEE Pro  
T&M Toolkit  
(reqs Visual Studio.NET)  
National Instruments  
TestStand  
Measurement Studio  
LabWindows/CVI  
LabVIEW  
Switch Executive  
Visual Studio.NET®  
C/C++  
Microsoft  
Visual Basic 6®  
1 Load I/O Libraries Version M for Windows NT support or version 14.0 for Windows 98 SE support  
7
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Here is the final recommended  
configuration:  
We recommend that the switch  
be ordered with options for  
24 V coils, position indicators,  
and socket connectors. Since  
24 V latching relays are speci-  
fied, there is no need for an  
external power supply. The  
L4445A instrument can provide  
power for a single 34945EXT.  
Easy-to-build ribbon cables  
can be built to interface each  
of the switches to the Y1150A  
and Y1152A distribution boards.  
See the Application note:  
Ordering information  
Example configuration:  
(qty 2) 87206B DC-20 GHz  
SP6T Switches  
A test system is being built  
that requires the following  
Microwave Switching:  
(qty 8) N1810UL DC-20 GHz  
SPDT Switches  
(qty 2) Agilent 87206B  
SP6T Switches  
(qty 1) L4445A  
Switch/Attenuator Driver  
(when ordering the L4445A,  
the 34945EXT is automatically  
added for controlling switches)  
(qty 8) Agilent N1810UL  
SPDT Switches  
Select the quantity of distribu-  
tion boards for the required  
switches using the ordering  
info below:  
(qty 2) Y1152A  
Distribution Boards  
Configuring an RF/ Microwave  
Switch System (5989-2272EN)  
for additional configuration  
details.  
(qty1) Y1150A  
Distribution Board  
Qty 2 Y1152A  
Distribution boards  
to control qty 2  
87206B switches.  
Either build own cables using  
off-the-shelf parts, or order  
qty 1 Y1159A 16-to-16 pin  
connect kit (supplies for 2  
cables) and qty 2 Y1157A  
9-to-10 pin cable kit  
Qty 1 Y1150A  
Distribution board  
to control qty 8  
(supplies for 4 cables).  
N1810UL switches.  
Notice that each Y1152A can  
also drive two N181x switches.  
Therefore if you only needed  
to drive 4 N1810 switches,  
then you could have controlled  
those switches via the Y1152A  
distribution boards already  
selected.  
8
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L4445A Accessories  
Cable kits for connecting  
Ordering information (Continued)  
Distribution boards are required  
for control of external switches.  
One 34945EXT external driver  
required for each 64 coils –  
holds 4 distribution boards  
per 34945EXT extender  
switches to distribution boards:  
L4445A Microwave Switch/  
Attenuator driver  
Includes User’s guide on CD,  
test report, power cord, and  
Quick Start package  
Y1157A  
9-to-10 pin cable kit for  
Y1150A, Y1152A, Y1154A -  
supplies to build 4 cables  
Y1158A  
Y1150A  
Option -GPIB  
Adds GPIB interface  
10-to-10/10-to-14 pin cable kit  
for Y1153A, Y1154A -  
supplies to build 2 cables  
34945EXT distribution board  
for 8 N181x SPDT switches  
Option 0B0  
Y1151A  
Deletes printed manual set,  
full documentation included  
on CD ROM  
Y1159A  
34945EXT distribution board  
for two 87104x/106x multiport  
or 87406B matrix switches  
16-to-16 pin cable kit for  
Y1150A/51A/52A/53A/54A/55A-  
supplies to build 2 cables  
Option ABA  
Y1152A  
English printed manual set  
34945EXT distribution board  
for one 87204x/206x or 87606B  
switch and two N181x switches  
Other accessories  
Y1160A  
Rack mount kit for  
L4400 series instruments-  
racks 2 instruments side-by-side  
with sliding tray  
Y1153A  
34945EXT distribution board  
for two 84904/5/6/7/8 or  
8494/5/6 step attenuators  
For additional information  
please visit:  
http://www.agilent.com/find/L4445A  
Y1154A  
34945EXT distribution board  
for two 87222 transfer switches  
and six N181x SPDT switches  
Y1155A  
34945A distribution board  
w/ generic screw terminals  
for driving 16 switch coils  
9
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Revised: May 7, 2007  
T&M Toolkit 2.0 with  
Test Automation  
5989-1439EN  
Agilent E2094N  
I/O Libraries Suite 14  
Product specifications and descriptions  
in this document subject to change  
without notice.  
5989-2272EN  
Configuring an  
RF/Microwave Switch System  
© Agilent Technologies, Inc. 2007  
Printed in USA, May 17, 2007  
5989-4828EN  
Agilent Technologies  
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