Curtiss-Wright SSR/CHS/001/B User manual

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Multi-role Recorders
User Guide

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TABLE OF CONTENTS
WELCOME ............................................................................................................. 1
About this Multi-role Recorders User Guide ............................................................................ 1
Unpacking and checking the contents ..................................................................................... 1
Registering for technical updates ............................................................................................ 2
Getting help and support ......................................................................................................... 2
HARDWARE INSTALLATION ...................................................................................... 3
ESD considerations ................................................................................................................. 3
Multi-role recorder connectors ................................................................................................. 4
Connecting the 6-way power interface to a power supply..................................................... 4
Connecting the 10-way Ethernet interface to a PC ............................................................... 4
Connecting the 19-way interface........................................................................................... 5
Connecting the voice interface.............................................................................................. 5
Connecting GPS ................................................................................................................... 5
Installing user-modules ............................................................................................................ 5
Installing/removing memory media .......................................................................................... 6
Installing/removing a CF card ............................................................................................... 6
Installing/removing a SATA SSD .......................................................................................... 7
Multi-role recorder grounds ...................................................................................................... 8
GND ...................................................................................................................................... 8
CHASSIS .............................................................................................................................. 8
POWER(-) ............................................................................................................................. 8
Grounding a multi-role recorder ............................................................................................ 8
Replacing the RTC battery ...................................................................................................... 9
Installing a multi-role recorder in an aircraft ........................................................................... 10
OPERATING A MULTI-ROLE RECORDER .................................................................. 11
Software overview ................................................................................................................. 11
DAS Studio 3....................................................................................................................... 11
Third party SNMP tools ....................................................................................................... 12
Wireshark ............................................................................................................................ 13

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Multi-role recorder front panel features .................................................................................. 13
START/STOP switch........................................................................................................... 13
EVENT button ..................................................................................................................... 13
Alphanumeric display .......................................................................................................... 13
Status LEDs ........................................................................................................................ 14
Navigating display settings .................................................................................................... 15
Viewing current configuration.............................................................................................. 16
Preparing memory media ...................................................................................................... 18
Formatting memory media using a multi-role recorder ....................................................... 18
Formatting a SATA SSD using the SSRFormat utility......................................................... 18
Using media space effectively............................................................................................. 19
Recording data ...................................................................................................................... 19
Controlling data recording ................................................................................................... 19
Recording data with wraparound ........................................................................................ 20
Recording events ................................................................................................................ 21
About time sources ............................................................................................................. 21
Estimated remaining time.................................................................................................... 21
Using SNMP .......................................................................................................................... 22
Configuring the IP address.................................................................................................. 22
Setting wraparound mode................................................................................................... 22
Monitoring operation ........................................................................................................... 22
External control of the screen brightness............................................................................ 22
Transmitting and recording data ............................................................................................ 22
File formats and management ............................................................................................... 24
Formatting files.................................................................................................................... 24
Opening and closing of files................................................................................................ 24
Efficient space management............................................................................................... 25
Filenames............................................................................................................................ 25
Viewing recorded files on a PC .............................................................................................. 26
Processing and extracting iNET-X data from recorded PCAP files..................................... 27

1
Chapter 1
WELCOME
Congratulations on purchasing a multi-role recorder from Curtiss-Wright! Multi-role recorders are rugged recorders
with integrated data acquisition to cater for diverse application requirements. Based completely on open standards,
these network native recorders allow immediate access to your data. The wide range of plug-in interface modules
can also be used in Acra KAM-500 DAUs.
NOTE: DAS Studio 3 setup software is included free of charge with the multi-role recorder purchase.
In this Multi-role Recorders User Guide, we use an SSR/CHS/001/B multi-role recorder as the example for
drawings and procedures. Where a drawing or procedure differs from the SSR/CHS/001/B, refer to the
respective multi-role recorder data sheet.
About this Multi-role Recorders User Guide
The Multi-role Recorders User Guide is intended for engineers who need to install and configure a multi-role
recorder.
Unpacking and checking the contents
Remove all contents from the package and confirm that the following items are included:
MULTI-ROLE RECORDER NET/CON/017 CABLE
CON/PSU/007 CONNECTOR HANDLING PRECAUTIONS DOCUMENT
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Inspect all contents for any visible signs of damage that may have occurred during transit. If damaged, contact
Curtiss-Wright support ([e-mail]). Keep the packing material in case you need to return
the product or ship it to another location.
WARNING: Always ensure that proper ElectroStatic Discharge (ESD) precautions are in place before handling or
storing Curtiss Wright equipment. See “ESD considerations” on page 3.
Registering for technical updates
Curtiss Wright issues a monthly bulletin, which provides updates on software versions and documentation
changes. To register for this bulletin, contact Curtiss Wright support ([e-mail]).
Getting help and support
Visit www.cwc-ae.com for further information about the company’s products and for resources such as FAQ,
technical notes and tutorials.
Please provide details of any hardware or software problems you have to Curtiss-Wright support (acra-
[email protected]).
DAS STUDIO 3 SOFTWARE CD USER DOCUMENTATION CD

3
Chapter 2
HARDWARE INSTALLATION
This chapter describes the connecting of devices to a multi-role recorder, establishing ground, and installing a
multi-role recorder in an aircraft.
NOTE: In this Multi-role Recorders User Guide, we use an SSR/CHS/001/B multi-role recorder as the example for
drawings and procedures. Where a drawing or procedure differs from the SSR/CHS/001/B, refer to the
respective multi-role recorder data sheet.
The following topics are discussed:
•“ESD considerations” on page 3
•“Multi-role recorder connectors” on page 4
•“Installing user-modules” on page 5
•“Installing/removing memory media” on page 6
•“Multi-role recorder grounds” on page 8
•“Replacing the RTC battery” on page 9
•“Installing a multi-role recorder in an aircraft” on page 10
ESD considerations
Read this section before removing items from their antistatic package.
WARNING: Always ensure that proper ESD precautions are in place before handling or storing Curtiss-Wright
equipment.
•When antistatic equipment is not available, touch some
metal frame to discharge static from your body before
removing items from their antistatic bag.
•In a laboratory environment, use antistatic mats and
wrist straps.

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Multi-role recorder connectors
This section describes connecting typical devices to a multi-role recorder. The following figure shows the
connectors on an SSR/CHS/001/B multi-role recorder.
Figure 1: SSR/CHS/001/B interfaces
NOTE: We recommend that Category 5 (or better) UTP Ethernet cables as specified in Ethernet cabling standard
(TIA/EIA-568-B.2-2001) are used for 100BaseTX and 1000BaseT connections.
WARNING: The use of third party mating connectors may result in damage to the mating connector and to the con-
nector on the multi-role recorder. Such damage would incur out of warranty repair costs.
Connecting the 6-way power interface to a power supply
Use the supplied CON/PSU/007 to connect the power interface to a 28V DC power supply.
1. Assemble the CON/PSU/007 connector.
See the CON/PSU/007 data sheet.
2. Connect the CON/PSU/007 to the 6-way power interface on the multi-role recorder.
3. Connect the other end to the aircraft DC power supply.
Connecting the 10-way Ethernet interface to a PC
Use the supplied NET/CON/017 cable to connect the multi-role recorder to a PC.
1. Using the NET/CON/017, connect the CON/MMO/001/F10A cable end to the 10-way Ethernet connector on
the multi-role recorder.
2. Connect the RJ45 cable end to a network interface card on a PC.
1
2
3
4
19-way (Mighty Mouse)
connector
10-way (Mighty Mouse)
Ethernet connector
Ground mounting
bolt
GPS
Voice connector
6-way power
connector

CHAPTER 2: HARDWARE INSTALLATION 5
Connecting the 19-way interface
The following input signals through the 19-way interface are supported:
•START/STOP: this signal starts and stops a recording.
•EVENT: this signal increments the event counter and generates an event packet that is recorded in a Packet
CAPture (PCAP) file, in sequence with the incoming Ethernet frames. This feature is used for marking key
events and maneuvers during the recording process.
•Digital IRIG-B time source in: this is used in systems where there is no IEEE 1588 Precision Time Protocol
(PTP) synchronization over the network or GPS antenna. Time input is required to timestamp each Ethernet
frame that is recorded in a PCAP file. Where there is no PTP, GPS antenna, or IRIG-B time source, the multi-
role recorder uses its local clock to timestamp the recorded Ethernet frames. For more information, see “About
time sources” on page 21.
NOTE: On first-generation multi-role recorders the voice signal is taken through the 19-way I/O connector. On the
SSR/CHS/001/B (and all subsequent multi-role recorders) the audio connector is a separate voice connec-
tor (see “Connecting the voice interface” on page 5). Some I/O signals are available only on specific multi-
role recorders; refer to the respective data sheet for more information.
To connect to an external source, assemble a cable that supports RS-422. To assemble and connect this cable, do
the following:
1. Assemble the CON/MMO/001/F19A connector.
See the CON/MMO/001/F19A data sheet.
2. For first-generation multi-role recorders, connect the audio source to the voice interface within the
CON/MMO/001/F19A connector.
3. Connect the CON/MMO/001/F19A to the 19-way I/O connector on the multi-role recorder.
4. Connect the other end of the cable to the external source.
Connecting the voice interface
On first-generation multi-role recorders the voice signal is taken through the 19-way I/O connector. On the
SSR/CHS/001/B (and all subsequent multi-role recorders) the audio connector is a separate voice connector.
A cable is not supplied for this voice signal.
1. Connect one end of the cable to the audio source.
2. Connect the other end to the voice connector.
Connecting GPS
Use an ACC/GPS/001/05M cable (not supplied) to connect the multi-role recorder to a GPS antenna. Refer to the
respective data sheet for the recommended antenna.
1. Connect the SMA male side of the ACC/GPS/001/05M to the GPS connector on the multi-role recorder.
2. Connect the other end to the GPS antenna.
Installing user-modules
Multi-role recorders have up to four user-slots, allowing for a range of plug-in modules to be installed.
When handling and installing modules, be sure to observe all precautions and instructions in the
Handling precautions document that ships with your order.

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Installing/removing memory media
It is not required to disconnect power when inserting or removing media.
WARNING: Never force a CompactFlash™ card (CF card) or SATA Solid-State Drive (SSD) into the multi-role
recorder; forcing media into multi-role recorders can damage the media and the multi-role recorder pins.
When no media is inserted, the ERROR LED is on.
When removing media, ensure the LOGGING LED is not on in order to prevent data loss.
Installing/removing a CF card
To prevent incorrect insertion, the media and housing are keyed.
1. To open the media door, turn the captive thumbscrew counter-clockwise.
2. CF cards are not designed to be fully inserted within the housing. Push the CF card firmly until it stops and the
eject button protrudes as shown here.
3. Close the door and then tighten the thumbscrew.
4. To remove the CF card, open the media door.
5. Push the eject button and then remove the CF card.
Eject button

CHAPTER 2: HARDWARE INSTALLATION 7
Installing/removing a SATA SSD
To prevent incorrect insertion, the media and housing are keyed.
1. To open the media door, push and turn the handle counter-clockwise.
2. Insert the SATA SSD firmly until it is flush with the housing.
3. Close the door, then push and turn the handle clockwise.
4. To remove a SATA SSD, open the media door, then firmly pull on the media handle to remove it.
Do not push here; doing so prevents
the media handle from turning easily
Do not push here; doing so prevents
the media handle from turning easily

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Multi-role recorder grounds
The multi-role recorder has the following three grounds:
•GND: internal electrical ground
•CHASSIS: mechanical ground
•POWER(-): 28V return
NOTE: All three grounds are isolated from one another inside the multi-role recorder.
GND
GND is the zero volt line that all internal signal conditioning modules use. All input and output signals on the multi-
role recorder are referenced to this potential. The GND point is also available on the multi-role recorder Power
Supply Unit (PSU) connectors.
CHASSIS
Each multi-role recorder has a mechanical ground available using the ground mounting bolt (see Figure 1 on
page 4). Mechanical grounding is also available using the CHASSIS pin on the multi-role recorder I/O connector
(where available). This pin is connected to the multi-role recorder chassis.
POWER(-)
POWER(-) is the return line for the 28V multi-role recorder power supply.
NOTE: The POWER(-) pin is not connected to the CHASSIS line or GND line within the multi-role recorder.
Grounding a multi-role recorder
Each ground must be connected to the main star point on the aircraft or vehicle using a low impedance connection.
Hence the GND pins on a multi-role recorder PSU connector, the CHASSIS pin on the PSU connector (if available)
and the POWER (-) pin on the PSU connector must be connected directly to the star point. It is acceptable to use
the ground mounting bolt on the PSU instead of the CHASSIS pin. A common cable must not be used to take more
than one of these signals to the star point.
NOTE: To prevent interference between different grounding connections, when more than one multi-role recorder
is used, each multi-role recorder must be connected to the star point using individual cables. Shared cables
must not be used. See examples of grounding configurations in the following two figures.
Figure 2: Multi-role recorder grounding
GND
CHASSIS
POW ER(-)
Star point
Multi-role recorder
Power

CHAPTER 2: HARDWARE INSTALLATION 9
Figure 3: Grounding for multiple multi-role recorders
Replacing the RTC battery
Some multi-role recorders have a Real-Time Clock (RTC), which keeps time when the multi-role recorder is not
connected to a power source. The RTC is powered by a BR2330A battery, which has a lifetime of four years.
When handling the new battery, wear insulating gloves so as not to short the battery terminals. Shorting the battery
terminals reduces the lifetime of the battery. If you do not have insulating gloves, then only handle the battery at the
sides.
To replace the RTC battery, refer to the following:
1. Remove the four M2 Allen screws from the battery holder and then remove the holder.
2. Loosen the M2 Allen screw on the battery latch and then rotate the latch to open it.
GND
CHASSIS
POWER(-)
Star Point
POWER(-)
CHASSIS
GND
PowerMulti-role recorder Power Multi-role recorder

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3. Flip the battery holder on its side to remove the battery.
4. Insert the new battery and then close the battery latch.
5. Apply nut-locking solution to the screw and tighten to torque 0.4 Nm.
6. Insert the battery holder into the multi-role recorder.
7. Apply nut-locking solution to the four screws and tighten to torque 0.6 Nm.
Installing a multi-role recorder in an aircraft
When installing a multi-role recorder in an aircraft or other location, ensure there is room to connect and disconnect
cables and also to insert and remove recording media.
As shown in the following figure, the multi-role recorder can be secured to a surface using mounting brackets or
mounted in a Dzus rail with the front Dzus screws.
Figure 4: Installing an SSR/CHS/001/B
NOTE: For the bend radius measurement of NET/CON/00X cables, see the Network cables data sheet.
For the bend radius measurement of cables connecting to any installed modules, see the Cables data
sheet.
Mounting brackets
Mounting screws
for Dzus rail
127
31.7
50.8
50
29.7
143
Include cable bend
radius and door-opening
radius in calculations for
space required

11
Chapter 3
OPERATING A MULTI-ROLE RECORDER
This chapter provides an overview of the functionality, configuration, and operation of a multi-role recorder.
NOTE: In this Multi-role Recorders User Guide, we use an SSR/CHS/001/B multi-role recorder as the example for
drawings and procedures. Where a drawing or procedure differs from the SSR/CHS/001/B, refer to the
respective multi-role recorder data sheet.
The following topics are discussed:
•“Software overview” on page 11
•“Multi-role recorder front panel features” on page 13
•“Navigating display settings” on page 15
•“Preparing memory media” on page 18
•“Recording data” on page 19
•“Using SNMP” on page 22
•“Transmitting and recording data” on page 22
•“File formats and management” on page 24
•“Viewing recorded files on a PC” on page 26
For additional information not covered in the Multi-role Recorders User Guide, such as specifications and pinout
definitions, refer to the respective multi-role recorder data sheet. For more information on PCAP, see
TEC/NOT/051 - Ethernet frames, Wireshark® and FAT32.
Software overview
Software which you can use with a multi-role recorder includes both Curtiss Wright software and third party
software.
DAS Studio 3
You can use Curtiss Wright’s DAS Studio 3 to discover, configure, program, and manage multi-role recorders. The
software allows you to change settings using SNMP (Simple Network Management Protocol). For more
information on using the software, see the software Help.
The following figure shows the main screen of the DAS Studio 3 Graphical User Interface (GUI). The Navigator
pane shows an example configuration for an SSR/CHS/001/B with the following plug-in user-modules: an analog
KAD/ADC/126; an ARINC-429 bus monitor KAD/ABM/102; a PCM bus monitor KAD/PBM/104; and a MIL-STD-
1553 bus monitor KAD/MBM/101. The settings for each input to be recorded are configured in the Editor pane.

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Figure 5: DAS Studio 3 main screen
Multi-role recorders support a range of configurable plug-in user-modules. From these configuration settings, DAS
Studio 3 determines the optimal packetization properties required for recording and transmitting the data. Both the
plug-in user-module settings and the packet formats are stored in the XidML metadata generated by DAS Studio 3.
For more information, see TEC/NOT/067 - IENA and iNET-X packet payload formats.
In addition to the plug-in user-modules, the multi-role recorders contain the following built-in standard I/O modules:
•Time source: required to accurately time tag data acquired from the plug-in user-modules.
•GPS
•Digital IRIG-B input
•IEEE 1588 Precision Time Protocol version 1 (PTPv1) Grandmaster
•CVSD audio encoder: this has a default audio encoding bit-rate of 64kbps to provide good quality audio.
NOTE: The packetization of CVSD audio data is described in TEC/NOT/067 - IENA and iNET-X packet payload
formats.
Third party SNMP tools
SNMP is a standard network protocol that can be used to discover, manage, interrogate, query, and configure
SNMP-enabled devices such as a multi-role recorder. Multi-role recorders support SNMPv2c.
SNMP uses an extensible and customizable Management Information Base (MIB) to describe the variables that
may be accessed in the FTI device including the structure, interpretation and read/write attributes of the supported
variables. The MIB contains global variables common to all networked FTI devices.
Navigator Editor

CHAPTER 3: OPERATING A MULTI-ROLE RECORDER 13
For more information on using third party SNMP tools, see TEC/NOT/058 - Overview of SNMP and using third
party SNMP tools. For more information on SNMP settings used with a multi-role recorder, see “Using SNMP” on
page 22. For a copy of the MIB text file, contact Curtiss-Wright support ([email protected]).
Wireshark
Data recorded using a multi-role recorder is stored in PCAP format. You can view the PCAP files using a network
protocol analyzer such as Wireshark. Wireshark accepts PCAP files and dissects the various protocol layers of the
packet including the MAC, IP, and UDP layers. This allows you to easily browse the recorded packets in the file.
Multi-role recorder front panel features
As shown in the following figure, multi-role recorders have a START/STOP switch, an EVENT button, an
alphanumeric display, and two status LEDs on their front panel.
Figure 6: SSR/CHS/001/B front panel
START/STOP switch
The START/STOP switch is used to start and stop recording. The START/STOP switch is a locked position switch
and must be pulled to toggle.
EVENT button
While recording is in progress, pressing the EVENT button increases the event counter and inserts an event
packet into the current recording stream. These event packets become bookmarks in the post-processing phase.
When an error message is displayed, press the EVENT button to clear the error message. The EVENT button is
also used to navigate the display menus when there is no media inserted.
Alphanumeric display
During recording, the alphanumeric display indicates the memory and recording status of the device, including:
time1, status, event counter, and the estimated remaining capacity on the memory media. For more information,
see “Navigating display settings” on page 15.
NOTE: For details of the display settings that can be configured on a multi-role recorder, refer to the respective
data sheet. For more information on using SNMP to make configuration changes for the display settings,
see TEC/NOT/058 - Overview of SNMP and using third party SNMP tools and the MIB text file. For a copy
of the MIB text file, contact Curtiss-Wright support ([e-mail]).
1. Note that the time display of all network recorders is UTC time.
ERROR LED
Display
LOGGING LED
Media door
START/STOP
switch
EVENT
button
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Status LEDs
The LOGGING LED lights green when recording is taking place.
When the ERROR LED lights yellow, recording is not possible. The ERROR LED lights yellow under the following
conditions:
•The memory media is not inserted.
•The memory media is not recognized or not mounted.
•The memory media is being formatted.
•The memory media is full and wraparound is disabled.
•The Ethernet network is not connected. (Does not apply to an SSR/CHS/001/C.)
NOTE: Even though the recorder is still recording packets on the backplane when the Ethernet input is discon-
nected, it is regarded as an error condition. As an error condition, it is reported via the Error LED and
the REC_STATUS output signal on the I/O connector.
NOTE: Multi-role recorders do not have a power on/off switch. Once power is connected, the multi-role recorder is
always on. If the display is not on, confirm power is connected.
If you connect power and the START/STOP switch is in the START position, the recorder attempts to begin
recording. For this reason, we recommend you ensure the START/STOP switch is in the STOP position
when you connect power.

CHAPTER 3: OPERATING A MULTI-ROLE RECORDER 15
Navigating display settings
When the multi-role recorder has power connected, press the EVENT button and START/STOP switch to navigate
the displays. The following figure illustrates various displays found using the EVENT button and START/STOP
switch.
Figure 7: Navigating displays
Ready to record
Connect power
Invalid c ard inserted or
power-up with invalid media
Valid empty media inserted or
power-up with valid media
Press EVENT
Press EVENT 3 seconds
Disk full
Press EVENT 3 seconds
Valid, full car d inser ted or
power-up with full media
Press EVENT
Remove media
Remove
media
Press EVENT 3 seconds
(STOP position)
Invalid media:
10 seconds elapsed OR
EVENT released
STOP position
while pressing the EVENT
then START then STOP position
within 10 seconds
STOP
START
Valid used media inserted
after media removed
Remove
media
Press EVENT Valid, not full media:
10 seconds elapsed OR
EVENT released
Valid, full media:
10 seconds elapsed OR EVNENT released
Remove media
No Ethernet link or
Half duplex link detected Press EVENT or
Full duplex Ethernet link detected
in the last 5 seconds
Dec 10
Dec 10
Dec 10
SSR/CHS/001/B
ACRA CONTROL
May/28 13:46:49
Insert Disk
Mount Failed
Remove Disk
May/28 13:46:53
Not Empty, Use?
May/28 13:46:50
Format?
May/28 13:46:57
Formatting 22%
May/28 13:46:55
N000 Stopped
May/28 13:46:58
N000 Hours 2
May/28 14:26:58
N001 Mins 85
May/28 15:46:58
Full
Ethernet Error
N000 Stopped
ERROR LED
LOGGING LED
EVENT counter
Buttons:
START: Switch in the START position
STOP: Switch in the STOP position
EVENT
Format media
View configuration

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NOTE: The display settings shown in Figure 7 on page 15 and Figure 9 on page 17 apply to both SATA-based and
CF card-based multi-role recorders.
When an SSR/CHS/001/C is installed but is not recording data, the data rate seen by the recorder is shown on the
bottom right of the display as a percentage of the 40 Mbps nominal logging speed (see the following figure). For
example, if the recorder is receiving 30 Mbps, including data from modules and data from Ethernet, the display
shows 75%. If the module is receiving 70 Mbps, the display shows 175%; since this is greater than 100%, some
incoming data would be lost if recording was to be started.
Figure 8: Display showing percentage of nominal logging speed on SSR/CHS/001/C
Viewing current configuration
To see the current configuration of the multi-role recorder, remove the media and then press the EVENT button. To
scroll through the settings, use the EVENT button. Example screens shown in the following figure will vary by
configuration.