464K PRELIMINARY 3-STAGE SOLID STATE SWITCH SYSTEMS 464K SALIENT FEATURES SYSTEM OPERATION 464K DESCRIPTION

Transcription

1 3-STAGE SOLID STATE SWITCH SYSTEMS PRELIMINARY SALIENT FEATURES SYSTEM OPERATION 3-stage non-blocking solid state switch matrix High density: 65,536 equivalent crosspoints in one mainframe Built-in self tests with diagnostics to verify the integrity of the switch system and user setup Remote control via Ethernet or RS-232 Non-volatile storage of switch configurations Signal switching of 0 Vpk for each signal path Frequency range: DC to 200 khz Modular construction using plug-in cards for ease of repair Differential input Single-ended output with ground sense Monitoring of power supply, fans and internal temperatures PRECISIONFILTERS,INC 3-Stage Solid State Switch System EDIT QUIT EDIT MODE TEST SAVE SET COPY PAGE 464k Precision Programmable Patch SELECT SEL * # 2 3 DEL ENT POWER REMOTE LL0 SETUP/ LOCAL STANDBY DESCRIPTION The is a 3-stage non-blocking solid state switching system which can provide the equivalent of a rectangular coordinate switch with 65,536 crosspoints while using only 24,064 crosspoints. It uses 63% less crosspoints than a rectangular coordinate switch, providing significant economy for large switching systems. The is a robust switching system that provides a uni-directional signal path from input to output. The uses its test subsystem to verify the system integrity. A Go/No-Go test checks the integrity of the current setup. Running the FAT (Factory Acceptance Test) exhaustively tests all possible switch settings and reports which plug-in modules are defective. The System can be controlled from the front panel, or remotely using command line control or by running an application program interface (API) on the host computer. Standard Switch Configurations 28x28 28x60 28x92 28x224 28x256 60x28 60x60 60x92 60x224 60x256 92x28 92x60 92x92 92x224 92x x28 224x60 224x92 224x x x28 256x60 256x92 256x x256 Figure Switching System Switch settings can be entered using the front panel or remote interface. Settings can be verified by scrolling through the setup on the front panel. A built-in go/no-go self test will verify that the unit has made the expected connections. Diagnostics can isolate problems down to the component level. All tests can be run unattended to minimize downtime. Setting Up Your Programmable Patch Although the is a 3-stage switching system, the operator should consider the system as a familiar coordinate matrix and tabulate the inputs that are to be connected to each output; the firmware will handle the 3-stage switching. A switch setup can be constructed easily by listing inputs and outputs and identifying the desired crosspoints. It s easy to enter the crosspoints into memory. With the list, select the output and enter the inlet. Step to the next output and enter the inlet. You can quickly enter the crosspoints for a large matrix. Setups can be uploaded and downloaded in text format through the remote interface so you can do your programming off-line and download to your switch system.

2 The front panel menu and controls provide a convenient way to set up the switch system. There s computer control available, of course, via the remote interface. Unlimitedsetupscanbestoredinthehostcomputer. IN OUT SET # 64 R 32 0 #: indicates that there is one matrix in the mainframe. In systems with two, three or four matrices, there is a status line displayed for each matrix. The # key in the numeric keypad is used to select the active matrix. The key sequence #2ENT, for example, selects matrix 2 as the active matrix. The active matrix is indicated by the arrow brackets. IN OUT: displays the inlet that is connected to the addressed output. In the menu above, inlet 64 is connected to output 32. Connections are entered at the numeric keypad using the R key. The key sequence 6 R 32 ENT, for example, connects inlet 6 to output 32. To review switch settings, step through the outputs by pressing the + and keys in the numeric keypad, and note the displayed inlet connections. Or display a specificoutputwithther key. For example, R 24 ENT displays the connection for output 24. SET: indicates which of five setups is selected as the active set for the matrix. Four setups, Set through Set 4, are stored locally in non-volatile memory. A fifth setup, Set 0, is automatically selected as the default configuration at power-up. Set 0 is reset at power-off, so the system always powers up with all switches open. The SET keyisusedtoselect theactiveset.forexample, the key sequence SET 3 ENT selectssetup3asthe active set. Another feature of sets is that setups can be copied. The COPY keyisusedtocopyastoredsetupinto theactiveset. Remote Operation Programming the switch system from a host computer is as easy as operating it at the front panel. System setups programmed at the front panel can be up-loaded to the host computer and stored. A stored setup can be down-loaded from the host computer, eliminating programming effort altogether. Remote commands are in plain English and are similar to the front panel menu. This command sequence defines two switch closures for Set ofmatrix. Page 2 Command Description #; Select matrix as the active matrix. SET:; Select Set for configuration. 0R0; Reset (open) all switches in Set. 6R; Connect inlet 6 to output. 2R2; Connect inlet 2 to output 2. Verifying Setups You can read and verify from the front panel that the switch settings are in memory. Or you can call for status via the host computer. Command Description #?; Report the active matrix. SET:?; Report the active setup (i.e., 0,, 2, 3 or 4).?R; Report the inlet connection for output.?r2; Report the inlet connection for output 2. SYSTEM HEALTH AND MAINTENANCE The System uses the built-in Test Subsystem to verify the integrity of the switch system and can be run unattended with automated reporting. Low level tones are injected into the signal path and the signal is measured at the inputs and outputs with high impedance synchronous detector/ ADC. The test system diagnostic reports those plug-in modules which are not functioning properly so that the faulty plug-in module can be replaced with a spare and the test rerun to verify system integrity. Two types of tests are available. The FAT (Factory Acceptance Test) does an exhaustive test of all switch settings. The second type of test is a Go/No-Go Test which tests the integrity of the current set-up. SWITCH SYSTEM SPECIFICATIONS Input Characteristics Common Mode V: Maximum Input: Input Z: CMRR: Transfer Characteristics 9 V max 0 Vpk 50 k differential 25% 74 db Noise: 25 V rms in 00 khz BW Linearity: 0.0% at 7 Vrm and 4 khz Frequency Re-sponse: DC to 00 khz ±0. db 00kHztoMHz> 3 db Gain: 0 db ±0.025 db at 4 khz Switch Crosstalk: 80 db, maximum, DC to 00 khz 60 db, maximum, 00 khz to MHz Contact Life: 0x0 6 operations

3 3-STAGE SWITCHING SYSTEM SWITCH SYSTEM SPECIFICATIONS (Cont.) Output Characteristics Output Type: Single-ended with ground sense Maximum Output: 0 Vpk at ma pk Output Z: 50 Output Offset: 5 mv max with Input shorted On the block diagram below, a non-blocking, 3-stage switching system is depicted with 8 input cards ( I through I8), 8 output cards (O through O8), and 8 interstage switch modules (R through R8). The backplane provides the interconnections between the input, output, and interstage cards. In this case, each input card, -I-MP2-(2)6X3, and each output card, -O-MP2-(2)3X6, has 2 multipin connectors for I/O and 2 multipin connectors for bussing signals. The connector in this example is a 50-pin D connector which can handle 6 differential signals. The 3-stage switch matrix can provide an equivalent rectangular switch matrix with 65,536 crosspoints while using only 24,064 crosspoints. This economy as well as one-third the capacitive loading is the main advantage of 3-stage switching systems. Input Stage Inter Stage Output Stage 6 I I 8 R 6 X 6 O 3 X 6 6 J9-0 6 I2 6 X Input Cards -I-MP2- (2)6X3 8 Interstage Cards -INTER- (4)6X6 8 Outlet Cards -O-MP2-(2)3X6 Backplane Bussing Backplane Bussing Backplane Display Control Key Pad Power RS-232 0/00 base T Figure 2 Elements of a Switch System (256x256) J8-0 6 X 3 O J8-02 (2 of 4 matrices per card shown) O2 3 X 6 6 J X 6 J-0 6 I5 I8 6 X 3 8 R8 6 X 6 O5 O8 3 X 6 6 J6-0 J-02 6 I6 6 X 3 6 X 6 O6 3 X 6 6 J6-02 Figure 3 Block Diagram of a 3-Stage Non-Blocking Switch System Page 3

4 0/00 BaseT RS232 Programming Test Monitor MAINFRAME A single mainframe may be partitioned into multiple smaller switch configurations. Several mainframes may be interconnected to construct a larger switch architecture. The variety of configurations is immense. The begins with a mainframe that houses a backplane. Up to eight input cards, eight output cards and eight interstage switch modules are interconnected by the backplane. Also interconnected are the control module, front panel, test subsystem and power. The mainframe for a switching system can be assembled in numerous ways. The completed mainframe is designated -R??, where the 2-digit suffix is a unique mainframe ID number. The system consists of a basic mainframe (-R0) with backplane, one to sixteen input and output connector cards, eight interstage switch modules, a front panel, control module with test subsystem and plug-in power supply. Basic Mainframe The basic mainframe is an enclosure without power supply, rear panel or backplane. The mainframe is 9 inches wide, 5.75 inches high, and 5 inches deep and is designed to fit in a standard RETMA rack. I/O CONNECTOR CARD Input and output connections are made on plug-in connector cards. Each I/O card also includes a test switch and a monitor switch which is used with the Test Subsystem to determine the system s integrity. The input and output cards provide bussing connectors for ing the inputs or outputs of multiple mainframes. This feature provides the ability to together inputs of multiple mainframes to form larger switch systems than can be accommodated in a single frame. Multipin Input Connector Cards -I-MP2-(2)6X3 Multipin Output Connector Cards -O-MP2-(2)3X6 The input card provides 32 differential inputs distributed to two 50-pin D connectors with two 50-pin bussing connectors. The output card provides 32 buffered outputs with ground sense distributed to two 50-pin D connectors with two 50-pin bussing connectors. Power Supply Thestandardplug-inpowersupplyletsyouoperateat20 to 240 VAC and frequency may range from 47 to 66 Hz. Page 4 Figure 4 Basic Mainframe, Rear View

5 INTERSTAGE SWITCH MODULES Each interstage switch module is a solid state switch matrix. Up to eight interstage switch modules can be plugged into the backplane. -INTER-(4)6X6 CONTROL MODULE This interstage card provides four 6x6 matrices The control module provides programming commands to the I/O and Interstage modules. When an operator requests an input to be connected to an output the controller calculates the optimal path through the switch and selects the proper cross points. The control module operates the front panel display, reads input keys and processes commands from the remote interface(s). The module mounts in a dedicated card slot on the backplane. Themodulecontainsfirmwaredesignedtomatchthe specific switch configuration it is controlling. On reset the controller will query every slot on the backplane to identify each board. If the board types do not match the expected configuration an error will be reported which requires user intervention. The controller also uses the test subsystem for system verification tests. The tests can be run either as an exhaustive factory acceptance test (FAT) or the current setup can be tested as a Go/No-Go test. The control module also provides remote interfaces. 0/00 baset Ethernet and RS232C are available as standard features. IP and port configurations are done through a front panel menu sequence. The IP assignment is static. RS232C is also configured through the front panel. Standard baud rates are available from 2400 to 57.6 Kbaud. TEST SUBSYSTEM The system provides a comprehensive factory acceptance test (FAT). FAT0 Test The FAT0 first level test functionally tests each board installed in the chassis. Using built-in test and monitor bussesoneachboard,testsignalsareinjectedontoeach board level signal path. The monitor bus detects the test signal through the switch chip. The test subsystem uses a synchronous phase detector to measure the monitored signal. The FAT0 test checks each path through an individual card, then checks for cross-talk on all other channels of the same card. Finally the test breaks the test connection to verify that the switch can be opened. This test is run without external connections. FAT Test The FAT second-level factory test checks all connections between the input and interstage cards, then checks all connections between the interstage and output cards. All backplane connections between boards are tested. This test can be run with external user connections. Go/No-Go Test The Go/No-Go routine tests a user setup for correct gain measurement. A test signal is injected at the input card and measured as a reference level. The signal is then propagated through the first signal path of a user setup. The resulting gain is then calculated. The process is repeated for each programmed path of the user setup. The control module also monitors the status of the power supply, cooling fans and internal temperature. If a failure is detected an audible warning is activated. Page 5

6 BUILDING A STANDARD SYSTEM It is a simple procedure to identify the system components for a standard system. Step. Select the switch type based on your application using the table below for guidance. Table Switch Selection by Application Latching Relay - 426K Solid State - Up to 00 VDC and VAC, 0 Vpk Switching, 5 ma pk >300 ma DC to MHz DC to 250 khz Up to 26,244 equivalent Up to 65,536 equivalent crosspoints per frame crosspoints per frame For latching relay systems, refer to the Precision 426K Switch brochure. Step 2. Select the matrix size. Refer to the Switch System Configuration Guide in Table 3 on the following page for the standard switch matrix configurations. Pick the nearest acceptable matrix size. If practical, include any future expansion that is anticipated. The configuration guide identifies the required input cards, output cards and blank panels for each standard switch configuration. Step 3. Refer to the list of standard equipment required for each system in Table 2. Table 2 Standard System Component Requirements Qty. Model Description -R0 Basic Mainframe -C5-S?T Controller with 0/00 BaseT, RS-232 and Test Interface 8 -INTER-(4)-6X6 Interstage Card U5 Rack Mount -GUI-WIN Graphical User Interface -TEST Test Subsystem with Cables -TEST-WIN FAT Software Example Lets make selections based on this hypothetical case:. High-density, solid state switch system 2. size: 224 inputs, 60 outputs Going to the Switch System Configuration Guide in Table3wefindthelinefor224inputsand60outputs. And the chart indicates that we need the following hardware. a. Input cards 7 ea. -I-MP2-(2)6X3 input cards to be installed in card slots J2 through J8 b. Output cards 5 ea. -O-MP2-(2)3X6 output cards to be installed in card slots J9 through J3 c. Blank panels ea. blank panels to be installed in empty output card slots J4-J5 2 ea. RP- blank panels to be installed in the empty inputcardslotjandemptyoutputcardslotj6 d. Standard system components listed in Table 2 include: ea. -R0 basic mainframe ea. -C5-S?T controller 8 ea. -INTER-(4)-6X6 interstage cards ea. U5 rack slide mount kit ea. -GUI-WIN graphical user interface ea. -TEST test subsystem with cables ea. -TEST-WIN FAT software Page 6

7 Table 3 Switch System Configuration Guide Switch Size Input Cards Output Cards Blank Panels Inputs Outputs Qty. Model Slots Qty. Model Slots Qty. Model Slots I-MP2-(2)6X3 J5-J8 4 -O-MP2-(2)3X6 J9-J2 2 J-J4, J3-J I-MP2-(2)6X3 J4-J8 4 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J3-J8 4 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J2-J8 4 -O-MP2-(2)3X6 J9-J2 RP- RP- J3-J6 J-J2 J3 J3-J6 J-J2 J3-J6 J I-MP2-(2)6X3 J-J8 4 -O-MP2-(2)3X6 J9-J2 J3-J I-MP2-(2)6X3 J5-J8 5 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J4-J8 5 -O-MP2-(2)3X6 J9-J3 2 2 RP- RP- J-J4 J4-J5 J6 J-J2, J4-J5 J3, J I-MP2-(2)6X3 J3-J8 5 -O-MP2-(2)3X6 J9-J3 2 J-J2, J5-J I-MP2-(2)6X3 J2-J8 5 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J-J8 5 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J5-J8 6 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J4-J8 6 -O-MP2-(2)3X6 J9-J4 2 RP- RP- RP- J4-J5 J, J6 J4-J5 J6 J-J4 J5-J6 J-J2, J5-J6 J I-MP2-(2)6X3 J3-J8 6 -O-MP2-(2)3X6 J9-J4 2 J-J2 J5-J I-MP2-(2)6X3 J2-J8 6 -O-MP2-(2)3X6 J9-J4 RP- J5-J6 J I-MP2-(2)6X3 J-J8 6 -O-MP2-(2)3X6 J9-J4 J5-J I-MP2-(2)6X3 J5-J8 7 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J4-J8 7 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J3-J8 7 -O-MP2-(2)3X6 J9-J5 RP- RP- RP- J-J4 J6 J-J2 J3, J I-MP2-(2)6X3 J2-J8 7 -O-MP2-(2)3X6 J9-J5 2 RP- J, J I-MP2-(2)6X3 J-J8 7 -O-MP2-(2)3X6 J9-J5 RP- J I-MP2-(2)6X3 J5-J8 8 -O-MP2-(2)3X6 J9-J6 J-J I-MP2-(2)6X3 J4-J8 8 -O-MP2-(2)3X6 J9-J I-MP2-(2)6X3 J3-J8 8 -O-MP2-(2)3X6 J9-J6 J-J I-MP2-(2)6X3 J2-J8 8 -O-MP2-(2)3X6 J9-J6 RP- J I-MP2-(2)6X3 J-J8 8 -O-MP2-(2)3X6 J9-J6 RP- J-J2 J6 J-J2 J3 Page 7

8 BUSSING FRAMES TO FORM A LARGER SWITCH SYSTEM The size of a switch system need not be limited by the capacity of a single mainframe. Larger switch systems are obtained by bussing mainframes. To expand the number of inputs, use the connections and cables to bus outputs. Inputs To expand the number of outputs, use the connections and cables to bus inputs. Inputs Switch System Switch System Figure 5 Mainframe Output Bussing Outputs Outputs Table 4 Two-Frame Switch Configuration Guide Switch Size Mainframes Cables Inputs Outputs Qty. Configuration Qty. Model 320 (60 x 2) x 28 8 CB-MP2PP (92 x 2) x 28 8 CB-MP2PP (224 x 2) x 28 8 CB-MP2PP-6 52 (256 x 2) x 28 8 CB-MP2PP (60 x 2) x 60 0 CB-MP2PP (92 x 2) x 60 0 CB-MP2PP (224 x 2) x 60 0 CB-MP2PP-6 52 (256 x 2) x 60 0 CB-MP2PP (60 x 2) x 92 2 CB-MP2PP (92 x 2) x 92 2 CB-MP2PP (224 x 2) x 92 2 CB-MP2PP-6 52 (256 x 2) x 92 2 CB-MP2PP (60 x 2) x CB-MP2PP (92 x 2) x CB-MP2PP (224 x 2) x CB-MP2PP-6 52 (256 x 2) x CB-MP2PP (60 x 2) x CB-MP2PP (92 x 2) x CB-MP2PP (224 x 2) x CB-MP2PP-6 52 (256 x 2) CB-MP2PP-6 Figure 6 Mainframe Input Bussing Bussing Two Frames Table 4 provides details regarding the frames required and cables necessary to two systems together for a larger switching system. 52 Inputs Outputs -256 Table 5 lists the system components required for a system implemented with two system mainframes. Table 5 Two-Frame System Component Requirements Qty. Model Description 2 -R0 Basic Mainframe 2 -C5-S?T Controller with 0/00 BaseT, RS-232 and Test Interface 6 -INTER-(4)-6X6 Interstage Card 2 U5 Rack Mount -GUI-WIN Graphical User Interface -TEST Test Subsystem with Cables -TEST-WIN FAT Software Figure 7 Mainframes Bussed to Form a 52 x 256 Switch Using Output Bussing Page 8

9 Bussing Four Frames Input and output bussing can be used to create programmable patches of other sizes. 52 Inputs Outputs -256 Table 7 lists the system components required for a system implemented with four system mainframes. Table 7 Four-Frame System Component Requirements Qty. Model Description 4 -R0 Basic Mainframe 4 -C5-S?T Controller with 0/00 BaseT, RS-232 and Test Interface 32 -INTER-(4)-6X6 Interstage Card 4 U5 Rack Mount -GUI-WIN Graphical User Interface -TEST Test Subsystem with Cables -TEST-WIN FAT Software Figure 8 Mainframes Bussed to Form 52 x 52 Switch Using Input and Output Bussing Table 6 provides details regarding the frames required and cables necessary to four systems together for a larger switching system. Table 6 Four-Frame Switch Configuration Guide Switch Size Mainframes Cables Inputs Outputs Qty. Configuration Qty. Model 320 (60 x 2) 320 (60 x 2) 4 60 x CB-MP2PP (92 x 2) 320 (60 x 2) 4 92 x CB-MP2PP (224 x 2) 320 (60 x 2) x CB-MP2PP-6 52 (256 x 2) 320 (60 x 2) x CB-MP2PP (60 x 2) 384 (92 x 2) 4 60 x CB-MP2PP (92 x 2) 384 (92 x 2) 4 92 x CB-MP2PP (224 x 2) 384 (92 x 2) x CB-MP2PP-6 52 (256 x 2) 384 (92 x 2) x CB-MP2PP (60 x 2) 448 (224 x 2) 4 60 x CB-MP2PP (92 x 2) 448 (224 x 2) 4 92 x CB-MP2PP (224 x 2) 448 (224 x 2) x CB-MP2PP-6 52 (256 x 2) 448 (224 x 2) x CB-MP2PP (60 x 2) 52 (256 x 2) 4 60 x CB-MP2PP (92 x 2) 52 (256 x 2) 4 92 x CB-MP2PP (224 x 2) 52 (256 x 2) x CB-MP2PP-6 52 (256 x 2) 52 (256 x 2) 4 64 CB-MP2PP-6 Page 9

10 MATING CONNECTORS AND CABLES CONN-I/O-50D CB-MP2PP-6 Mating connector (includes crimp pins and strain relief gauge) Cable, MP2 Male to MP2 Male, 6 ft. length ENVIRONMENTAL REQUIREMENTS Operating Temp: Storage Temp: Relative Humidity: 0 o Cto40 o C 20 o Cto70 o C Less than 80%, non-condensing PHYSICAL CHARACTERISTICS Dimensions Mainframe : 9 x 5.75 x 5 inches (WHD) Weight Mainframe (PS, BP, FP): Switch Card: I/O Conn Card: 50 lbs..5 lbs..5 lbs. P8393 Rev P4