Dow-Key Microwave 5105 User manual

5105 Microwave Switch System
Operation Manual
THE RF/MICROWAVE SWITCHING TECHNOLOGY SOLUTION COMPANY

Copyright Dow-Key Microwave Corporation 2005, All rights reserved.
Information in this publication supersedes that in all previously published material.
Specifications and price change privileges reserved.
Printed in the U.S.A.
Dow-Key is a registered trademark of Dow-Key Microwave Corp.
Document Number: 49101-071 Rev. 2

i
WARRANTY
Dow-Key Microwave Corporation warrants this product to be free from defects in
material and workmanship for a period of 1 year from date of shipment. This warranty
does not apply to defects resulting from product tampering or modification without Dow-
Key’s express written consent. This warranty also does not apply to software, non-
rechargeable batteries, power supplies, or problems arising from normal wear or failure
to follow instructions.
To exercise this warranty, contact Dow-Key Microwave headquarters in Ventura,
California. You will be given prompt assistance and return instructions. Send the
product, transportation prepaid, to the Dow-Key headquarters. Repairs will be made
and the product returned within the quoted period of time, transportation prepaid.
Repaired or replaced products are warranted for the balance of the original warranty
period, or at least 90 days.
NEITHER DOW-KEY MICROWAVE CORPORATION NOR ANY OF ITS EMPLOYEES
SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIEDENTAL OR
CONSEQUENTIAL DAMAGES ARISISNG OUT OF THE USE OF ITS INSTRUMENTS
AND SOFTWARE EVEN IF DOW-KEY MICROWAVE CORPORATION HAS BEEN
ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES. SUCH
EXCLUDED DAMAGES SHALL INCLUDE, BUT ARE NOT LIMITED TO: COSTS OF
REMOVAL AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF INJURY
TO ANY PERSON, OR DAMAGE TO PROPERTY.

ii
Manual Revision History
The revision history shown below lists of all revisions and addendums created for this
manual. The revision levelincreases numerically as the manual undergoes subsequent
updates. Addendums are released between revisions and contain important change
information that the user should incorporate immediately into the manual. When a new
revision is created, all addendum associated with the previous revision of the manual
are incorporated into the new revision of the manual. Each new revision includes a
revised copy of this history page.
Revision 1 (Document Number 49101-071)…………………………. June 2005
Revision 2……………………………………………………………. January 2006
•Update style of manual only

iii
Table of Contents
1General Information...........................................................................................................1
1.1 Introduction................................................................................................................1
1.2 Specifications............................................................................................................1
1.3 Safety Precautions ...................................................................................................2
1.4 Inspection....................................................................................................................2
1.5 Maintenance...............................................................................................................2
1.6 Repacking for shipment..........................................................................................2
2System Layout....................................................................................................................3
2.1 Front Panel Layout...................................................................................................3
2.2 Rear Panel Layout.....................................................................................................3
2.3 Schematic Layout......................................................................................................4
2.4 Ethernet ERNI Pin Out Layout...............................................................................5
3Connections........................................................................................................................6
3.1 Power Connections..................................................................................................6
3.1.1 Line Voltage ..........................................................................................................6
3.1.2 Line Power Connection.......................................................................................6
3.1.3 Line Fuse Replacement ......................................................................................6
3.2 GPIB Control Connection.......................................................................................8
4Configuring the Matrix......................................................................................................9
4.1 Configuring the Matrix.............................................................................................9
4.2 MAC Address.............................................................................................................9
4.3 Ethernet Connections..............................................................................................9
4.4 Testing the Ethernet Communication ...............................................................10
4.5 Communication Problems....................................................................................10
5Manual (LOCAL) Operation...........................................................................................11
5.1 Front Panel Controls..............................................................................................11
5.2 Power On...................................................................................................................11
5.3 Manual Operation through Front Panel............................................................12
5.4 Setting RF Path through the Front Panel.........................................................12
5.5 Front Panel Controls, First Set of Menus.........................................................13
5.5.1 Set LCD Contrast (1) .........................................................................................13
5.5.2 Clear Errors Command (2)...............................................................................13
5.5.3 Clear Positions Command (3)..........................................................................14
5.5.4 GPIB Address (4) ...............................................................................................14
5.5.5 More Options (8).................................................................................................15
5.6 Front Panel Controls, Second Set of Menus...................................................15
5.6.1 IP Address Command (1).................................................................................15
5.6.2 TCP Number Command (2)..............................................................................16
5.6.3 Factory Setup (3)................................................................................................16
5.6.3 Last menu (4)......................................................................................................16
6Remote Operation............................................................................................................17
6.1 Introduction to SCPI...............................................................................................17
6.2 Command Syntax Structure.................................................................................17
6.3 Command Separators............................................................................................18
6.4 Common Commands.............................................................................................18
6.4.1 *IDN?....................................................................................................................18
6.4.2 *OPC?..................................................................................................................19

iv
Table of Contents
6.4.3 *RST.....................................................................................................................19
6.4.4 *WAI......................................................................................................................19
6.5 System Commands................................................................................................20
6.5.1 SYST:ERR? ........................................................................................................20
6.6 Module Command Set ...........................................................................................22
6.6.1 [ROUTe]:MODULE<x>,<y>,<z> ......................................................................22
6.6.2 Setting module to position x,y,z.......................................................................22
6.6.3 ROUTe:CLOSURES?........................................................................................23
Appendix A ................................................................................................................................24
List of Figures
Figure 2-1 Front Panel Layout ..................................................................................................3
Figure 2-2Rear Panel................................................................................................................4
Figure 2-3 Schematic .................................................................................................................4
Figure 2-4 Erni 973101 Connector –Rear View....................................................................5
Figure 3-1 Power Entry Module ................................................................................................7
Figure 5-1 Start-up display......................................................................................................11
Figure 5-2 Main menu display.................................................................................................11
Figure 5-3 Module # 4 selected ..............................................................................................12
Figure 5-4 Module # 4, channel #2 selected.........................................................................12
Figure 5-5 Main Screen showing module 4, channel 2 output 3 selected.......................12
Figure 5-6 First Menu Commands..........................................................................................13
Figure 5-7 Contrast command display...................................................................................13
Figure 5-8 Clear errors display...............................................................................................14
Figure 5-9 Main menu display showing no errors................................................................14
Figure 5-10 Clear command display......................................................................................14
Figure 5-11 GPIB address display.........................................................................................14
Figure 5-12 Second menu commands...................................................................................15
Figure 5-13 IP address display...............................................................................................15
Figure 5-14 TCP port number display....................................................................................16
Figure 5-15 Factory setup display..........................................................................................16
List of Tables
Table 3-1 Line Fuse....................................................................................................................7
Table 3-2 GPIB Pin Assignments.............................................................................................8

1
1General Information
1.1 Introduction
The Dow-Key Microwave Model 5105 is a Physical Ethernet Switch to switch
10/100base-T with the option to physically switch 1 Gbps Ethernet. The matrix
is an expandable design that allows for up to 8 modules on the rear panel that
can easily be inserted or removed by the customer.Each module contains 2
channels with each channel having 1 input to 4 outputs. Depending on the part
number determines the number of modules installed. For example a 5105-2
includes 2 modules, 5105-7 includes 7 modules. See Appendix A for all
available configurations for the Model 5105.
1.2 Specifications
Configuration: Up to 8 modules with 2 channels each
Rear Panel Connector:ERmetZD Male Con. Angle 4-10 (973101)
Impedance: 100 Ohms ±5 Ohms
Frequency Range:1 GHz
Return Loss (dB): 1 –20 MHz (ƒ) =15
20 –100 MHz (ƒ) =15 –10log10 (ƒ/20)
Near End Cross Talk (dB): 1 –100 MHz (ƒ) =27.1–16.8log10 (ƒ/100)
Contact Resistance (?): 0.1? max per switch
0.2? max per trace between input and output
Switching Speed: 50ms
Operating Temp: 0 to 50°C
Switch Type: Failsafe to Output 1
Line Voltage: 120-240 VAC, 50-60 Hz
Remote Control Interfaces: EHTERNET with RJ-45 Connector
GPIB with 24 position IEEE-488 Connector
Weight: 25 lbs max. (20 lbs nominal)
Dimensions: 5-1/4” H x 19” W x 20” D

2
General Information
1.3 Safety Precautions
Safety precautions should be observed before using this product and any
associated instrumentation. This product is intended for use by qualified
personnel who recognize the safety precautions required to avoid possible
injury.
1.4 Inspection
The Model 5105 was carefully inspected, both electrically and mechanically
before shipment. After unpacking all items from the shipping carton, check for
any obvious signs of physical damage that may have occurred during transit.
Report any damage to the shipping agent immediately. Save the original
packing carton for possible future reshipment. The following items are included
with every Model5105 order.
•Model 5105 Switch System
•Model 5105 Operation Manual, Document Number 49101-071
•Power Cord, Part Number 40203-005
1.5 Maintenance
The Model 5105 requires no periodic maintenance. Should any problems arise,
contact Dow-Key Microwave immediately for necessary repairs. This system is
not field repairable.
1.6 Repacking for shipment
Should it become necessary to return the Model 5105 for repair, carefully pack
the unit in its original packing carton or the equivalent, and follow these
instructions:
•Call the Repair Department at 1-805-650-0260 for a Return Material
Authorization (RMA) number.
•Advise as to the warranty status of the Model5105.
•Write ATTENTION REPAIR DEPARTMENT and the RMA number on the
shipping label.

3
2System Layout
2.1 Front Panel Layout
Figure 2-1 shows the general layout of the front panel of the Model 5105 which
includes:
•4 x 40 LCD Display
•16 Button Keypad
Figure 2-1 Front Panel Layout
KEYPAD DISPLAY
2.2 Rear Panel Layout
Figure 2-2 shows the general layout of the rear panel of the Model5105 which
includes:
•Up to Eight 5107 Modules
•Power Entry Module with built in Fuse
•Ethernet: RJ-45 Connector
•GPIB Control: IEEE-488 Interface Connector

4
System Layout
Figure 2-2Rear Panel
Power Entry Module
Line Fuse Module Number
2.3 Schematic Layout
Figure 2-3Schematic
SHOWN IN FAILSAFE POSITION

5
System Layout
2.4 Ethernet ERNI Pin Out Layout
Figure 2-4Erni 973101 Connector –Rear View
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6
3Connections
3.1 Power Connections
3.1.1 Line Voltage –The Model 5105 operates from a line voltage in the range of
110V to 240V at a frequency of 50 or 60Hz. Line voltage selection is automatic.
CAUTION: Operating the unit on an incorrect line voltage may cause
damage, possibly voiding the warranty.
3.1.2 Line Power Connection –Perform the following steps to connect the Model
5105 to line power:
1. Connect the female end of the supplied power cord to a grounded AC
receptacle on the rear panel.
2. Connect the other end of the supplied power cord to a grounded AC
outlet.
WARNING: The power cord supplied with the Model 5105 contains a
separate ground for use with grounded outlets. Failure to use a grounded
outlet may result in personal injury or death due to electric shock.
3.1.3 Line Fuse Replacement –A rear panel fuse protects the power line input of
the Model 5105. If the line fuse needs replacement, perform the steps below:
WARNING: Disconnect the line cord from the unit before changing the
line fuse.
1. The fuse is located in a holder in the power module unit above the AC
receptacle (figure 3-1). At top is a small tab, use a small bladed
screwdriver to release the fuse holder.
2. Slide the fuse holder out to gain access to the fuse carrier and fuse.
3. Remove the carrier with the blown fuse, and replace with the correct
type listed in Table 3-1.
CAUTION: For continued protection against fire or unit damage, replace
the fuse only with the type and rating listed.
4. Install the fuse carrier in the fuse holder, then insert the fuse holder
back in the power entry module.

7
Connections
Figure 3-1Power Entry Module
Insert small bladed screwdriver
to release the fuse.
Table 3-1Line Fuse
Line
Voltage Fuse Rating Manufacturer Manufacturer Part No.
110-240V 1.5A, Fast Acting, 250V, ¼” x 1-1/4” Littelfuse 312015

8
Connections
3.2 GPIB Control Connection
The Model 5105 comes equipped with a 24-pin connector which mates with any
GPIB control interface cable with metric mating screws. The GPIB has 16
signal lines and 8 ground return or shield drain lines. All GPIB devices share
the same 24 bus lines. The 16 signal lines fall into three groups:
•Eight data lines
•Five interface management lines
•Three handshake lines
Signal pin assignments are listed for reference purposes in Table 3-2.
Table 3-2GPIB Pin Assignments
Pin # Designation Type
1DI01 Data
2DI02 Data
3DI03 Data
4DI04 Data
5EOI Management
6DAV Handshake
7NRFD Handshake
8NDAC Handshake
9IFC Management
10 SRQ Management
11 ATN Management
12 SHIELD Ground
13 DI05 Data
14 DI06 Data
15 DI07 Data
16 DI08 Data
17 REN Management
18 GND (DAV) Ground
19 GND (NRFD) Ground
20 GND (NDAC) Ground
21 GND (IFC) Ground
22 GND (SRQ) Ground
23 GND (ATN) Ground
24 SIGNAL GROUND Ground

9
4Configuring the Matrix
4.1 Configuring the Matrix
Before you configure your matrix, you will need to contact your network
administrator to obtain the following information:
•IP address for the matrix
•TCP port number
Each device on your network must have a unique address so that all devices
can communicate simultaneously over the same network. These unique
addresses are called IP addresses, and are assigned by your network
administrator. An IP address is a set of four decimal number separated by
periods, example 169.254.111.111.
To set the IP address from the front panel press [MENU], then press [8] for
more options, then [1] for IP ADDRESS. Enter the IP address given by your
network administrator. Use the [ENTER] key for the period between each
number.
CAUTION: It is important that no two devices are assigned the same IP
address. Both devices may fail to communicate on the network.
To set the TCP port from the front panel press [MENU], then press [8] for more
options then [2] for TCP PORT NUMBER. Enter the port number assigned by
your network administrator.
4.2 MAC Address
Your matrix has a unique built-in MAC address associated with the Ethernet
card inside the matrix. The MAC address is a 48-bit number assigned at the
factory. You don’t need to know the MAC address to configure your matrix.
4.3 Ethernet Connections
To connect your Matrix to a LAN hub, the use of a “straight-through” cable is
required. To connect to a single computer and avoid using a LAN hub, a
special “cross-over” cable or adapter that acts like a LAN hub must be used. If
you try to connect to a single computer using a “straight-through” cable, it will
not work.

10
Configuring the Matrix
4.4 Testing the Ethernet Communication
You should now test the communication between your computer and your
matrix. The ping utility is typically used to test this communication.
Enter the following at the command prompt of a DOS window on your
computer.
Ping <IP address>
<IP address> is the number that was assigned by your network administrator
and was entered into your matrix in “Configuring the Matrix”.
If there is a valid working connection, you should see a response similar to this:
C:\>ping 169.254.111.111
Pinging 169.254.111.111 with 32 bytes of data:
Reply from 169.254.111.111: bytes=32 time=5ms TTL=64
Reply from 169.254.111.111: bytes=32 time=2ms TTL=64
Reply from 169.254.111.111: bytes=32 time=2ms TTL=64
Reply from 169.254.111.111: bytes=32 time=3ms TTL=64
Ping statistics for 169.254.111.111
Packets: Sent=4, Received=4, Lost=0 (0% loss)
Approximate round trip times in milli-seconds:
Minimum=2ms, Maximum=5ms, Average=3ms
4.5 Communication Problems
Your Matrix interface does not need or include any proprietary driver software.
It was designed to operate with common network utilities and drivers. If the
Matrix fails to communicate, contact your network administrator for additional
assistance. If your network administrator is unable to locate the problem,
please contact Dow-Key Microwave Corporation at 1-805-650-2325.

11
5Manual (LOCAL) Operation
5.1 Front Panel Controls
The Model 5105 comes with both a 4x40 LCD display and 16 button keypad per
Figure 5-1. Up on start up of the unit the display will show the manufacturers
name, type of matrix, firmware revision and serial no.
Figure 5-1Start-up display
5.2 Power On
Position the rocker switch on the rear panel of the Model 5105 to the on position
(Figure 2-2). The LCD will illuminate with a yellow background and the display
will show the main menu. Upon power up all positions shall be in the failsafe
positionand the unit will be in ‘LOCAL’ mode as shown in Figure5-2.
Figure 5-2Main menu display
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12
Manual (LOCAL) Operation
5.3 Manual Operation through Front Panel
Manual mode of operation for the Model 5105 is facilitated by using the front
panel keypad and LCD display. Make sure that the operation in the lower right
corner is set to ‘LOCAL’. Press [MODE] key to switch between ‘LOCAL’ and
‘REMOTE’.
5.4 Setting RF Path through the Front Panel
To set a desired RF path using the front panel use the following procedure.
Lets say you want to set module 4 to channel 2 and output 3. First select your
module number. Depending on the model your choices are 1 thru 8. In our
case we will select module 4. Using the front keypad press [4] and then
[ENTER]. The display will appear like Figure 5-3.
Figure 5-3Module # 4 selected
Now you will enter the desired channel number. In our case we will select
channel 2. Press [2] from the front keypad and then [ENTER]. The display will
appear like Figure5-4.
Figure 5-4Module # 4, channel #2 selected
Now you will enter the desired output number. In our case we will select output
3. Press [3] from the front keypad and then [ENTER]. The display will appear
like Figure 5-5.
Figure 5-5 Main Screen showing module 4, channel 2 output 3 selected
Manual (LOCAL) Operation

13
You have just completed connecting an RF path to Module 4, Channel 2 and
Output 3. To change another path, follow the same procedure. Refer to Rear
Panel Figure 2-2 and Schematic Figure 2-3in setting the correct Module #,
Channel # and Output #.
5.5 Front Panel Controls, First Set of Menus
Press [MENU] to display the first set of menus for the front panel controls.
Figure 5-6First Menu Commands
5.5.1 Set LCD Contrast (1)
Changes contrast of the LCD display. Press [1] then use the [ß] key to
decrease contrast value and [à] key to increase the contrast value. The higher
the value (up to 50) the dimmer the display becomes, the lower the value (down
to 0) the brighter the display becomes.
Figure 5-7Contrast command display
5.5.2 Clear Errors Command (2)
Clears the last error reported on the front panel display. Press [2] then
[ENTER] to clear the last error. Press [MENU] to return to the main display.
The main menu display should come back with “no error” as shown in figure 5-
9.

14
Manual (LOCAL) Operation
Figure 5-8Clear errors display
Figure 5-9Main menu display showing no errors
5.5.3 Clear Positions Command (3)
Clears or opens all switch paths in the system. Press [3] then [ENTER] to clear
all positions. Press [MENU] to take you back to the main display.
Figure 5-10 Clear command display
5.5.4 GPIB Address (4)
Sets the device address on the GPIB. Factory default is set to 9. Set the new
address (0-31) then press [Enter].
Figure 5-11 GPIB address display