background image

F D C 3 3 0 2   U s e r   M a n u a l

28

A P P E N D I X   D

29

F D C 3 3 0 2   U s e r   M a n u a l

S P E C I F I C A T I O N S

SSB Phase Noise @ 10 MHz and +13 dBm output level*:

   

At 1 Hz   

< -135 dBc/Hz

   

At 10 Hz 

< -145 dBc/Hz

   

At 100 Hz 

< -153 dBc/Hz

   

At 1 kHz 

< -160 dBc/Hz

   

At 10 kHz 

< -163 dBc/Hz

   

* See chart below for typical additive phase noise performance.

External Alarm Input/Disable Inputs (A or B):

Normal State:  TTL low.  

Alarm State:  TTL high or high Z (internal 10kΩ pull-up).

Connectors:  Rear-panel female BNCs labeled “Disable In”.

Alarm Output: 

Open-collector, 40 VDC Max, 100 mA Max Saturation Current.

High Impedance when any fault condition exists.

Connector:  Rear-panel female BNC labeled “Alarm Out”.

Front-Panel System Status Indicators:

Signal Input LEDs:  Red/Green/Yellow LEDs indicate signal presence, selection status of each Signal 

Input and, if configured, Disable Input (external alarm input) status.

Signal Output LEDs:  Red/Green/Yellow LEDs indicate signal presence status on each output.

Power LEDs:  Red/Green LEDs indicate power supply status of each power input.

Alarm LED:  Red/Green/Yellow LED indicates a serious fault condition.

Maintenance Port:

See 

RS-232 Serial I/O Port Signal Definitions

 in 

Chapter 3

 for more information.

RS-232 serial I/O on rear panel DB9M jack for secure, local terminal access.

User-Selectable Parameters:  9600 to 57600 baud, 

   

 

 

7 or 8 data bits, 

   

 

 

odd, even or no parity, 

   

 

 

1 or 2 stop bits

-180

-170

-160

-150

-140

-130

-120

-110

-100

1

10

100

1000

10000

10

5

EndRun Technologies FDC3302 Distribution Chassis

Typical Phase Noise -- 10 MHz @ +13 dBm

Measured

Curve Fit

Specification

Ph

as

e

N

oi

se

L(

f),

dB

c/

H

z

Fourier Frequency, Hz

Curve Fit Results

White PM

(rad^2): -165.37 dBc/Hz

Flicker PM

(rad^2/Hz): -144.43 dBc/Hz @ 1Hz

Summary of Contents for FDC3302

Page 1: ...Smarter Timing Solutions FDC3302 Frequency Distribution Chassis User Manual USM3302 0000 000 Revision 9 January 2018...

Page 2: ......

Page 3: ...refinement of the technologies required to fulfill the demanding needs of the time and frequency community The instruments produced by EndRun Technologies have been selected as the timing reference fo...

Page 4: ...ipping charges to send product to EndRun Technologies and EndRun Technologies shall pay shipping charges to return product to Buyer However if returned product proves to be operating normally not defe...

Page 5: ...k for a customer service agent It is important to contact us first as many prob lems may be resolved with a phone call Please have the serial number of the unit and the nature of the problem available...

Page 6: ...F D C 3 3 0 2 U s e r M a n u a l...

Page 7: ...e Introduction 1 Main Features 1 Overview 1 Performance Reliability and Reasonable Cost 1 Flexibility 1 Easy Installation 1 Free FLASH Upgrades 2 Theory of Operation 2 Overview 2 Chapter Two Basic Ins...

Page 8: ...pwrstat 12 reset 13 respmode 13 return 13 selectedin 14 settings 14 siginstat 14 sigoutstat 14 status 14 switchmode 15 upload 15 ver 15 RS 232 Serial I O Port Signal Definitions 16 Appendix A LED Indi...

Page 9: ...nd Descriptions 22 netconfig 22 netmac 23 netpass 23 netprotocol 23 netreset 24 netsnmp 24 netsnmpro 24 netsnmprw 24 Upgrading Firmware 25 What You Need To Perform the Upgrade 25 Performing the Upgrad...

Page 10: ...F D C 3 3 0 2 U s e r M a n u a l...

Page 11: ...vailability signal distribution systems for top tier commercial and military applications may be efficiently implemented The unit will accept a TTL or open collector alarm output signal from the upstr...

Page 12: ...etected and monitored by the alarm logic and CPU In addition single or dual TTL level disable inputs are monitored to allow switching based on the alarm output from the upstream signal source This ext...

Page 13: ...3 F D C 3 3 0 2 U s e r M a n u a l...

Page 14: ...F D C 3 3 0 2 U s e r M a n u a l 4 C H A P T E R O N E...

Page 15: ...t Checking and Identifying the Hardware Unpack and check all the items using the shipment packing list Contact the factory if anything is missing or damaged The FDC3302 shipment typically contains FDC...

Page 16: ...exists Use the alarmstat or alarmlist commands for more information see Chapter 3 Control and Status Commands RS 232 Connector This DB 9M connector provides the RS 232 serial I O interface to the FDC...

Page 17: ...use harmful interference in which case the user will be required to correct the interference at his own expense Mount the FDC3302 Using standard 19 rack mounting hardware mount the unit in the desired...

Page 18: ...sing coaxial cables connect your analog signal s to the Input A and or Input B on the FDC3302 The factory default for the FDC3302 switchmode setting is for Input A to be the primary and Input B to be...

Page 19: ...es serial port baud rate data bits parity and stop bits pwrstat Prints the current status of the power supplies A 1 means the power supply is operational A 0 means it is not reset This command will ca...

Page 20: ...ponding alarm is active A 0 means it is OK An x means the optional component is not installed in this particular unit Group 1 6 characters Group 2 10 characters Group 3 4 characters Signal Input A abs...

Page 21: ...serted and there is no good signal present on the other signal input For example Example 1 If disablemode y n off and switchmode a then there is no secondary reference input and the chassis cannot swi...

Page 22: ...displayed port This command sets the serial port parameters of baud rate data bits parity and stop bits If you change these parameters they will be saved in non volatile memory Syntax is port b d p s...

Page 23: ...eries by including the command name Query respmode Chassis response terse or Query respmode Chassis response respmode verbose Factory default setting terse return After the chassis has switched from t...

Page 24: ...t A and the second character is for Signal Input B A 0 means a signal is not pres ent and a 1 means a signal is present Query siginstat Chassis response 10 Signal Input A is present Signal Input B is...

Page 25: ...ther remain on the primary signal input or will switch it off depending on the disablemode setting Typing switchmode with no parameter will display the current switchmode setting If you change this se...

Page 26: ...to connect the distribution chassis to another computer a null modem adapter must be used The serial cable provided with the shipment is wired as a null modem adapter and can be used to con nect the d...

Page 27: ...OLOR MEANING Green The signal input is selected as the current input Red The signal input should be present but it is not See switch mode to determine whether a signal input should be present or not F...

Page 28: ...ut LEDs COLOR MEANING Green The output is present Red The output is absent shorted or the output driver has failed Alarm LED COLOR MEANING Green No alarm condition exists Red An alarm condition exists...

Page 29: ...loading using protocols XMODEM 128 with CRC or XMODEM 1K with CRC These are very common file transfer protocols and should be supported by virtually any terminal program CAUTION You may perform the up...

Page 30: ...he distribution chassis If it is you have successfully upgraded the firmware Problems with the Upgrade Should you have difficulties with the upload due to a corrupt file power failure during upload or...

Page 31: ...the standard telnet port 23 After entering the password use the help command to get started To get help on a particular command type help fol lowed by the command For example Query help Chassis respo...

Page 32: ...nds are assumed to be terminated with a carriage return Line feeds are ignored All responses from the FDC3302 are terminated with a carriage return and a line feed Detailed Command Descriptions netcon...

Page 33: ...address of the ethernet network port Query netmac Chassis response netmac 0 20 4a 94 32 ae netpass This command sets the password for accessing the network port via Telnet or SSH The password must be...

Page 34: ...e community string must be at least 8 and less than 32 characters Characters must be alphanumeric or the underscore _ Entering con trol C will quit without changing the community string There is no qu...

Page 35: ...virtually any terminal program Less common is a terminal program capable of connecting using Telnet A recommended program for the Windows platform is ZOC available from Emtec http www emtec com Perfor...

Page 36: ...in intact On boot up it will check to see if a valid application program is in the FLASH memory If there is not it will immediately go into the waiting for download mode sending the C character every...

Page 37: ...panel female BNCs labeled Signal In Distribution Outputs 1 through 10 Impedance 50 SWR 1 8 100 kHz 1 2 1 MHz 1 3 10 MHz 1 8 30 MHz Unity Gain 0 dB 2 dB Harmonics 40 dBc 13 dBm and 100 kHz F 20 MHz 35...

Page 38: ...ection status of each Signal Input and if configured Disable Input external alarm input status Signal Output LEDs Red Green Yellow LEDs indicate signal presence status on each output Power LEDs Red Gr...

Page 39: ...VDC 38 72 VDC 1 5A maximum 125 VDC 70 160 VDC 0 75A maximum 3 position terminal block on rear panel DC IN SAFETY GROUND DC IN Floating power input Either or can be connected to earth ground Size Chass...

Page 40: ...F D C 3 3 0 2 U s e r M a n u a l 30 A P P E N D I X D EndRun EndRun EndRun EndRun FDC3302 DIMENSIONS AC POWER...

Page 41: ...31 F D C 3 3 0 2 U s e r M a n u a l S P E C I F I C AT I O N S...

Page 42: ...F D C 3 3 0 2 U s e r M a n u a l 32 A P P E N D I X D...

Page 43: ...Changes for Customer Requirements From time to time EndRun Technologies will customize the standard FDC3302 Frequency Distribu tion Chassis for special customer requirements If your unit has been mod...

Page 44: ...F D C 3 3 0 2 U s e r M a n u a l 34 S P E C I A L M O D I F I C AT I O N S...

Page 45: ......

Page 46: ...2270 Northpoint Parkway Santa Rosa CA 95407 TEL 1 877 749 3878 FAX 707 573 8619 www endruntechnologies com Smarter Timing Solutions...

Reviews: