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24 Nov. 2020 | DST/AE/022

CURTISSWRIGHTDS.COM 

SSR/CHS/001

TABLE 5

PTP Synchronization specification

PARAMETER

MIN.

TYP.

MAX.

UNITS

CONDITION/DETAILS

Time accuracy

Measured over the full temperature range with temperature 
changing at up to 1°C per minute.

mean error

–

10

40

ns

Mean of PPS errors calculated over ±60 seconds from any 
reading.

instantaneous error

–

20

250

ns

After synchronization is achieved, with no loss of connection 
to Grandmaster.

Time to synchronize

Measured from a power-up of the test chassis, using a 
Meinberg M600 IEEE 1588 Grandmaster, supplying PTPv1 
messages to the SSR/CHS/001 via OnTime T208 switch, 
configured in IEEE 1588 transparent mode.

1 μs

–

50

–

s

250 ns

–

75

–

s

TABLE 6

PTP grandmaster

PARAMETER

MIN.

TYP.

MAX.

UNITS

CONDITION/DETAILS

Grandmaster accuracy

digital IRIG

-2

–

2

μs

GPS

-2

–

2

μs

Error relative to precise reference clock, GPS signal from 
antenna which has a clear view of the sky.

PTP address

IP address

–

224.0.0.

129, 

224.0.0.

107

–

–

PTP, UDP port numbers are 319 and 320. PTPv2 in P2P 
mode uses additional IP address (224.0.0.107) for delay 
measurement.

PTP sync interval

1588v1

–

2

–

s

Sync interval when operating as a PTPv1 Grandmaster, or 
when connected to an external PTPv1 Grandmaster.

1588v2

–

1

–

s

Sync interval when operating as a PTPv2 Grandmaster, or 
when connected to an external PTPv2 Grandmaster.

TABLE 7

Differential ended audio inputs

PARAMETER

MIN.

TYP.

MAX.

UNITS

CONDITION/DETAILS

Inputs

–

–

2

–

Sampling rate

VOICE[1:0]

–

64

–

ksps

Summary of Contents for SSR/CHS/001

Page 1: ...ing and video compression Built in inputs include audio and IRIG B GPS A rear panel Ethernet port is provided for setup and real time monitoring Control is via a START STOP switch and an EVENT button via external start stop and event inputs through the I O connector or SNMP commands through the Ethernet link Data is stored on a removable CompactFlash memory card currently with capacities of up to ...

Page 2: ...ding power consumption in the SSR CHS 001 on page 18 Mass Design metric is kilograms fully populated without CompactFlash card 1 91 kg Typical module weight of 75g fully populated without CompactFlash card 4 2 lb fully populated with CompactFlash card 1 94 kg fully populated with CompactFlash card 4 27 lb Environmental ratings See Environmental Qualification Handbook for Network Switch and Recorde...

Page 3: ...0 80 31 70 153 00 163 00 4 00 9 50 9 50 14 00 28 50 28 50 14 00 127 00 146 00 159 00 85 00 9 way connector 10 way micro miniature connector 19 way micro miniature connector 6 way bayonnet power connector GPS Antenna Connector Ground Mounting Bolt Drill Tap to suit 10 24 UNC Torque Max 5Nm Lbfin LED 2 OFF Mounting Bracket 6 OFF 1 4 Turn Dzus Fastener 6 OFF Nylon Battery Mount ...

Page 4: ...At full load Physical connector Bayonet connector placement Not removable TABLE 4 Onboard GPS receiver PARAMETER MIN TYP MAX UNITS CONDITION DETAILS Inputs 1 Time accuracy 1 μs Position accuracy 2D fix 2 5 22 m Circular Error Probable 3D fix 2 5 22 m Spherical Error Probable 3D fix 2 m With Satellite Based Augmentation Systems Satellite acquisition time reacquisition 3 5 5 s warm power up 40 s col...

Page 5: ...nfigured in IEEE 1588 transparent mode 1 μs 50 s 250 ns 75 s TABLE 6 PTP grandmaster PARAMETER MIN TYP MAX UNITS CONDITION DETAILS Grandmaster accuracy digital IRIG 2 2 μs GPS 2 2 μs Error relative to precise reference clock GPS signal from antenna which has a clear view of the sky PTP address IP address 224 0 0 129 224 0 0 107 PTP UDP port numbers are 319 and 320 PTPv2 in P2P mode uses additional...

Page 6: ...Micro miniature circular connector placement Not removable TABLE 9 RS 485 inputs PARAMETER MIN TYP MAX UNITS CONDITION DETAILS Inputs 1 Signalling rate DIGITAL_TIME_IN 100 bps Operating as IRIG B input the following time codes are supported IRIG B 000 001 002 003 Input voltage operating range 0 5 25 V logic 0 0 0 7 V logic 1 2 5 25 V overvoltage protection 0 3 6 V Voltage in excess of these values...

Page 7: ...s are recorded START_STOP 0 5 Hz EVENT 0 5 Hz Event is triggered when signal changes from logic 1 to logic 0 or from logic 0 to logic 1 EVENT 0 5 Hz Input voltage operating range 7 12 V Do not exceed operating range logic 0 0 2 V VIN VIN logic 1 0 2 V VIN VIN overvoltage protection 27 27 V Voltages outside of this range can damage input ESD protection 15 15 kV Human Body Model Input resistance bet...

Page 8: ...ts 1 Signaling rate REC_STATUS 1 Hz Recorder status high indicates an error condition Mirrors the Error LED Output voltage logic 0 0 44 V Sinking 24 mA logic 1 3 76 V Sourcing 24 mA short circuit current 50 mA short circuit duration s To GND Output resistance 121 Ω TABLE 14 Brightness control inputs PARAMETER MIN TYP MAX UNITS CONDITION DETAILS Inputs 1 Input voltage BRIGHT DIM 10 0 10 V DC level ...

Page 9: ...ority Allow Secondary Input True False True If Primary Input is GPS IRIG B then allow IRIG B GPS to act as secondary time source when pri mary is unavailable Settings PTP Settings relating to PTP synchronization and time conversions PTP Protocol PTPv2 Delay Req PTPv1 PTPv2 Delay Req Determines supported IEEE 1588 protocol PTP where PTPv1 corresponds to IEEE 1588 2004 and PTPv2 corresponds to IEEE ...

Page 10: ...rding stops when the disk is full If Wrap Around is enabled the oldest file is deleted and recording continues Recorder Control Method Local Network External Local Selects whether the recorder is controlled from its Local front panel via SNMP over the Network or by External I O lines Memory Utilization Threshold 0 to 10000000 12800 Sets the number of megabytes of remaining disc space at which the ...

Page 11: ...D Settings Event Settings Defines event packets or periodic status event pack ets Event Destination IP Address 0 0 0 0 to 255 255 255 255 127 0 0 1 Destination IP address for event packets Event Destination Port 0 to 65535 1234 Destination UDP Port Number for event packets Event Stream Id 0 to 2147483647 1000 Stream ID for event packets If the packet format is IENA only the least significant 16 bi...

Page 12: ... the fixed data to be transmitted in the fixed word parameter Channels GPS In GPS Input The GPS input Settings Ethernet Ethernet bi directional The standard Ethernet interface Settings PPSOut TTL Output Pulse per second Audio In 1 0 Audio Input Two audio input channels on the device Settings Packetizer Packetizer Format iNET X IENA iNET X Hybrid iNET X Selects the packetizer header format for all ...

Page 13: ...eserved for future use R 12 7 Hours BCD Hours 0 to 23 R 6 0 Minutes BCD Minutes 0 to 59 TimeLo Seconds and centiseconds at the start of the acquisition cycle Second BCD 16 R 31 16 R 15 Reserved R 14 8 Seconds Seconds 0 to 59 R 7 0 Centiseconds Centiseconds 0 to 99 TimeMicro Microseconds at the start of the acquisition cycle Second BCD 16 R 15 0 R 15 0 Microseconds Microseconds 0 to 9999 StatusTime...

Page 14: ...d Reserved for future use R 4 Module Reset Watchdog timeout A 1 here indicates that the module s microprocessor has failed and has been reset by the internal watchdog timer R 3 2 Reserved Reserved for future use R 1 Time Source Lost Missed more than five con secutive PTP packets R 0 Out Of Sync On the last update the measured time error relative to the time master was greater than the value specif...

Page 15: ...i fied range R 10 NorthSouth When 0 the latitude read is in the northern hemisphere when 1 the latitude read is in the southern hemisphere R 9 East West When 0 the longitude read is east of the Greenwich Meridian When 1 the longitude read is west of the Greenwich Meridian R 8 Reserved R 7 4 SattellitesInView Number of satellites in view R 3 0 SatellitesInUse Number of satellites used to calculate ...

Page 16: ... per hour Unitless BCD 16 R 15 0 R 15 0 VelocityInKph KM 0 to 9999 VelocityInKn Velocity in nautical miles per hour Unitless BCD 16 R 15 0 R 15 0 VelocityInKn KN 0 to 9999 Heading True course over ground BitVector BitVector 32 R 31 0 HeadingHi Degrees of true course over ground BitVector BitVector 16 R 31 16 R 31 28 Reserved R 27 16 Degrees Degrees 0 to 359 HeadingLo Decimal degrees of true course...

Page 17: ...busses are asynchronous and there may be times when the traffic rate is low MIL STD 1553 packets are only generated when there is a full payload of data or a timeout occurs making the recording of MIL STD 1553 traffic very efficient File format The SSR CHS 001 constantly generates the data to be recorded as Ethernet packets When the START STOP switch is in the start position these packets are stor...

Page 18: ... 70 Mbps the display shows 175 since this is greater than 100 some incoming data would be lost if recording was to be started NOTE This calculation is based purely on the data rate and assumes that the packet size is sufficiently large to achieve 40 Mbps logging speed Figure 6 Display showing percentage of nominal logging speed If an error prevents the SSR CHS 001 from recording for example if no ...

Page 19: ... SNMP variables that can be used to configure the SSR CHS 001 TABLE 15 Variable descriptions VARIABLE DESCRIPTION READ ONLY RO READ AND WRITE R W ipSetVar 0 Combined MAC address IP address and IP mask RO R W iso org dod internet private enterprises acra triggers recorde rTriggers triggerRemoteEvent 0 Event increment variable writing 1 to this variable increments the event number reading from this ...

Page 20: ...uld be mapped to 0 brightness 5V mapped to 100 brightness The front panel status LEDs dim in conjunction with the LCD display brightness When setting screen brightness ensure it is adequate for the status LEDs to be seen KAD ADC 005 family of modules The SSR CHS 001 does not support programming of modules in the KAD ADC 005 family for example the KAD ADC 006 KAD ADC 009 KAD CDC 001 and KAD LDC 001...

Page 21: ...ot connect 10 DNC Do not connect 1 Connect the supplied NET CON 017 cable to this interface For details of the mating connector that connects to this interface see the Related products table in the Network cables data sheet The mating connector is used for custom cable assembly PIN NAME SEE SPECIFICATIONS TABLE COMMENT 1 PWR Electrical specifications 2 PWR Electrical specifications 3 CHASSIS Chass...

Page 22: ...ect 11 START_STOP RS 422 inputs Starts recording when logic 1 Stops when logic 0 12 START_STOP RS 422 inputs Starts recording when logic 1 Stops when logic 0 13 EVENT RS 422 inputs Event is triggered on the transition from logic 0 to logic 1 or logic 1 to logic 0 14 EVENT RS 422 inputs Event is triggered on the transition from logic 0 to logic 1 or logic 1 to logic 0 15 REC_STATUS BTTL outputs Rec...

Page 23: ... user visibility of recorder status via 2 x user placed parameters in Ethernet packet Recommended for new programs SSR CHS 001 C Display of current data rate as a percentage of the recorder capability Error LED does not light in standalone mode Ethernet Multicast Filter support Not recommended for new programs SSR CHS 001 B First release Not recommended for new programs SOFTWARE DETAILS DAS Studio...

Page 24: ...arks are the property of their respective owners SSR CHS 001 This document was reviewed on 03 11 2020 and does not contain technical data TEC NOT 051 Ethernet frames Wireshark and FAT32 TEC NOT 058 Overview of SNMP and using third party SNMP tools TEC NOT 067 IENA and iNET X packet payload formats TEC NOT 072 Time and leap seconds DOCUMENT DETAILS ...

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