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Racal Instruments 1258 Скачать руководство пользователя страница 19

1258 User Manual

Racal Instruments

©

2005

Functional Description 3-1

Chapter 3

FUNCTIONAL DESCRIPTION

General

The 1258 uses an embedded controller with operational software
to control a set of switching cards. The software receives
commands through the front panel manual keypad or the remote
interfaces. Matrix routing is controlled through a digital link to the
switching cards. A simplified functional block diagram of the
instrument is shown in Figure 3-1.

POWER

SUPPLY

SWITCHING CARD 1

SWITCHING CARD 2

SWITCHING CARD 3

SWITCHING CARD 4

16

16

16

16

16

16

16

16

ALPHA-

NUMERIC

KEYPAD

GRAPHICAL

DISPLAY

AC

POWER

SERIAL

INPUTS

OUT

P

UT

S

GPIB

10-BASE-T

RS-232

EMBEDDED

CONTROLLER

(PC104)

GPIB

(PC104)

DIGITAL

I/O

(PC104)

ETHERNET

(PC104)

Figure 3-1. Functional Block Diagram

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Содержание 1258

Страница 1: ...H21 7PF United Kingdom Tel 44 0 1202 872800 Fax 44 0 1202 870810 Via Milazzo 25 20092 Cinisello B Milan Italy Tel 39 0 2 6123 901 Fax 39 0 2 6129 3606 Racal Instruments Group Limited Technologie Park...

Страница 2: ...ent or misuse of any product or part The warranty also does not apply to fuses software non rechargeable batteries damage from battery leakage or problems arising from normal wear such as mechanical r...

Страница 3: ...ce purposes or for purposes of engineering evaluation and incorporation into technical specifications and other documents which specify procurement of products from Racal Instruments DISCLAIMER Buyer...

Страница 4: ...ion 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...

Страница 5: ......

Страница 6: ...This page was left intentionally blank...

Страница 7: ...1 Unpacking Inspection and Handling 2 1 Reshipment Instructions 2 2 Mounting 2 2 Chapter 3 3 1 FUNCTIONAL DESCRIPTION 3 1 General 3 1 Front Panel User Interface 3 2 Switching System Controller 3 2 Co...

Страница 8: ...e Configuration 4 9 Commands and Queries 4 9 Disconnect commands OPEN 4 11 Connect commands CLOSE 4 11 Connection queries CLOSE 4 12 Perform connection disconnection commands UPDATE 4 13 Keypad Lock a...

Страница 9: ...iii Appendix A A 1 CONNECTORS A 2 Appendix B B 1 DEFINITIONS B 1...

Страница 10: ...1 7 2Vp p Source 1 5 Figure 1 8 Step Response for 2Vp p 1 5 Figure 3 1 Functional Block Diagram 3 1 Figure 3 2 Front Panel 3 2 Figure 3 3 Rear Panel option 407900 001 shown 3 3 Figure 3 4 Rear Panel...

Страница 11: ...of operation The solid state non blocking switching logic offers maximum signal isolation and low noise The switching system architecture allows customizable rear panel signal connections Figure 1 1 M...

Страница 12: ...h 16 5 W 19 5 D 3 5 H Rear Mounted Connectors variations with SMA and multi contact DSUBs available GPIB IEEE 488 2 Ethernet 10BaseT RS 232 or Manual front panel Control Field Upgradeable Firmware thr...

Страница 13: ...tput f 5MHz 200 mV p p RL 50 75 dB Crosstalk adj Ch f 5MHz 200 mV p p RL 50 60 dB Off Isolation Input Output f 10 MHz RL 100 one channel 90 dB Output Characteristics Output Offset Voltage Worst case a...

Страница 14: ...70 75 80 85 90 1 10 100 1000 Figure 1 3 Adjacent Input Channel Crosstalk vs Frequency CROSSTALK dB FREQUENCY MHz VIN 200mVp p RL 50 Channels 33 48 Channels 49 64 Channels 17 32 Channels 1 16 40 45 50...

Страница 15: ...tem Specification 1 5 OFF ISOLATION dB FREQUENCY MHz RL 50 Vin 2Vp p Vin 200mVp p 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 1 10 100 1000 Figure 1 6 Off Isolation Input Output Figure 1 7 2Vp...

Страница 16: ...for rack mounting and a handle at each end The unit fits in a standard EIA 2U rack space Applicable Documents Standard Commands for Programmable Instruments Volume 1 Syntax and Style ANSI IEEE Std 488...

Страница 17: ...on preserving the factory packaging as much as possible 2 Inspect the instrument for any defects or damage Immediately notify the carrier if any damage is apparent 3 Have a qualified person check the...

Страница 18: ...ent 2 If the original packing material is unavailable wrap the in an ESD Shielding bag and use plastic spray foam to surround and protect the instrument 3 Reship in either the original or a new shippi...

Страница 19: ...the remote interfaces Matrix routing is controlled through a digital link to the switching cards A simplified functional block diagram of the instrument is shown in Figure 3 1 POWER SUPPLY SWITCHING C...

Страница 20: ...e alphanumeric keypad through an on board serial interface The switching cards are controlled internally using a digital I O Communication Interfaces The GPIB Ethernet and RS 232 interfaces allow remo...

Страница 21: ...8 receptacles are housed in ITT Cannon P N DCM8W8SA197 receptacle housings Figures 3 3 and 3 4 shows the I O configuration for option 407900 001 and 407900 014 Many other variations are possible I1 I9...

Страница 22: ...I57 I56 I64 1 2 3 4 5 6 7 8 9 10 11 13 12 14 15 16 O01 O09 O08 O16 1 2 3 4 5 6 7 8 9 10 11 13 12 14 15 16 100 MHz 64 Inputs x 16 Outputs Assy 11028200 1014 Serial No 1000 115 230VAC 47 63 Hz 100W max...

Страница 23: ...lly saved if the unit is powered off To save the matrix configuration and operating modes during power off conditions use either the Current or Last Configuration PowerUp mode see PowerUp Configuratio...

Страница 24: ...nd modes run self test perform diagnostic functions and obtain help information Figure 4 2 shows the general hierarchy of the command structure Some variations may exist depending on the version of th...

Страница 25: ...ack Cancel A Error Log B Configure C Test Diagnostics D Back A Run SelfTest B Diag Mode C System Reset D Back A GPIB B Ethernet C RS232 D Back A Scroll Up B Scroll Down C D Back A Control Interface B...

Страница 26: ...matrix The smartkeys allow the display to be scrolled through all available inputs and outputs The color of the dot indicates the status of the route Open Open no connection Yellow Route on Connect li...

Страница 27: ...ottom of the screen Routes on the Disconnect list are shown surrounded by parentheses The matrix is not physically changed until the UPDATE ROUTES key is pressed This allows a list of connected or dis...

Страница 28: ...thernet cable must be connected before power is applied to the 1258 IEEE 488 GPIB Configuration To communicate with the 1258 using GPIB it is necessary to configure all settings The Primary Address ca...

Страница 29: ...ation The default mode will startup with factory settings Current configuration mode will startup with all settings as they were when the enter button was pressed while invoking Current Configuration...

Страница 30: ...panel keypad Color The color scheme of the display can be controlled from the SYSTEM CONFIGURE MISC COLOR menu There are three color schemes available This feature can only be controlled through the...

Страница 31: ...r instructions on configuring the GPIB Ethernet and RS 232 interfaces Once configured the 1258 accepts standard ASCII character strings for control and status requests The 1258 uses a SCPI type comman...

Страница 32: ...e CONFigure POWErup return current power up mode IDN returns manufacture model version and matrix size information RST reset the system and run self test TST return results of self test ESR return err...

Страница 33: ...OPEN 15 47 place connection input 15 to output 47 on the disconnect list ROUTE OPEN ALL place all connections on the disconnect list Connect commands CLOSE The CLOSE command specifies routes to be con...

Страница 34: ...CLOSe output_channel query Syntax ROUTe CLOSe STATe returns a comma delimited list of the current matrix connections ROUTe CLOSe output_channel returns input channel number that the specified output c...

Страница 35: ...rst followed by all connections Syntax UPDAte Examples UPDATE performs all connects and disconnects present on their respective list Keypad Lock and Unlock Commands LOCK and UNLOck The LOCK command is...

Страница 36: ...tches open and default operational modes 1 Current configuration 2 Last configuration at time power was removed CONFigure POWErup return current power up mode Examples CONFigure DIAGnostic 1 enable di...

Страница 37: ...258 1 1 64 64 System Reset Command RST The RST command resets the instrument to the power on state All pending operations are aborted connect and disconnect lists are cleared self test is performed th...

Страница 38: ...ccur Code dec Description 0 No error successful 81 RS 232 Timeout 82 Invalid argument 83 Unrecognized command Syntax ERR returns error code value of last error returns 0 if no error exist ERR DESC ret...

Страница 39: ...creen power on the 1258 and wait for the initial power on confirmation beep After the first beep press and hold down the 3 key on the keypad until an additional beep or beeps is heard Shortly the spec...

Страница 40: ...1258 User Manual Operating Instructions 4 18 Racal Instruments 2005 This page left intentionally blank...

Страница 41: ...he Parts Department When sending your instrument in for repair complete the form in the back of this manual For worldwide support and the office closes to your facility refer to the Support Offices se...

Страница 42: ...249 Tel 210 699 6799 Fax 210 699 8857 Europe European Headquarters and Service Center 18 Avenue Dutartre 78150 LeChesnay France Tel 33 0 1 39 23 22 22 Fax 33 0 1 39 23 22 25 29 31 Cobham Road Wimborne...

Страница 43: ...Zip Postal Code Country Technical Contact Phone Number Purchasing Contact Phone Number 1 Describe in detail the problem and symptoms you are having Please include all set up details such as input outp...

Страница 44: ...1258 User Manual Product Support 5 4 Racal Instruments 2005 This page was left intentionally blank...

Страница 45: ...29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Rear Panel Input Connectors 17 18 19 20 21 22 23 24...

Страница 46: ...1258 User Manual Appendix A 2 Racal Instruments 2005 CHASSIS 1 TXD 2 RXD 3 RTS 4 CTS 5 DSR 6 GND 7 DCD 8 9 10 11 12 13 14 15 16 17 18 19 20 DTR 21 22 RI 23 24 25 RS 232 Connector...

Страница 47: ...output signals Measured in decibels dB below the nominal signal level Expressed as dB at a specified load impedance and at a specific frequency or frequency range Full Fan out The ability to connect...

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