Brainstorm Electronics DXD-16 User manual

DXD-16
Universal Clock
Operations manual
Version 2.0
June 2020
All materials herein © Brainstorm Electronics, Inc.
Brainstorm Electronics reserves the right to change or modify the contents of this manual at any time.
Brainstorm Electronics, Inc.
www.brainstormtime.com

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DXD-16 User Manual (rev 2.00)
1. Introduction!6...............................................................................................................................
2. Installation!7................................................................................................................................
2.1 UNPACKING!7.................................................................................................
2.2 INSTALLING THE DXD-16!7...............................................................................
3. Quick Start!7...............................................................................................................................
4. I/O’s Description and Cable Requirements!8.................................................................................
4.1 AC POWER!8....................................................................................................
4.2 ANTENNA (OPTION)!8....................................................................................
4.3 GPIO / TC OUT / 1PPS I/O / RS-232!8.............................................................
4.4 HD/SDI (option)!8............................................................................................
4.5 ETHERNET PORTS!8..........................................................................................
4.6 REFERENCE INPUTS & TERMINATION SWITCHES!8..........................................
4.7 UNIVERSAL OUTPUTS!8....................................................................................
4.8 DC POWER!8...................................................................................................
5. Front Panel Display & LED’s!9.......................................................................................................
5.1 FRONT PANEL DISPLAY!9..................................................................................
5.2 FRONT PANEL LED’S!9.....................................................................................
6. Display!10...................................................................................................................................
6.1 Main Rotation!10............................................................................................................
6.1.1 MAIN ROTATION PAGES LAYOUT!10.............................................................
6.1.2 MAIN ROTATION PAGES!10..........................................................................
6.2 Status Mode!11..............................................................................................................
6.2.1 STATUS INFORMATION PAGES LAYOUT!11....................................................
6.2.2 STATUS INFORMATION PAGES!11.................................................................
6.3 Set Up Mode!12.............................................................................................................
6.3.1 MENU LEVELS!12...........................................................................................
6.3.2 NAVIGATION!12...........................................................................................
6.3.3 ENTER KEY!12...............................................................................................
6.3.4 STATUS VALUES!12........................................................................................
6.3.5 MENU GROUPS!13.......................................................................................
7. Menus Description!14...................................................................................................................
7.1 R e f e r e n c e !14...................................................................................................................
7.1.1 R E F E R E N C E ( M E N U 1.1 ) !14............................................................................
7.1.2 SYNC PARAMETERS (MENU 1.2)!15...............................................................
7. 2 B N C I n p u t s !15................................................................................................................
7.2.1 BNC INPUT A SET UP (MENU 2.1)!15.............................................................
7.2.2 BNC INPUT B SET UP (MENU 2.2)!15.............................................................
7.3 BNC Outputs!15.............................................................................................................
Table of Content

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7.3.1 BNC OUTPUTS 1-4 (MENU 3.1)!15.................................................................
7.3.2 BNC OUTPUTS 5-8 (MENU 3.2)!16.................................................................
7.3.3 BNC OUTPUTS 9&10 MENU (3.3)!16.............................................................
7.3.4 BNC OUTPUTS 11&12 (MENU 3.4)!16............................................................
7.3.5 BNC OUTPUTS 13&14 (MENU 3.5)!16............................................................
7.3.6 BNC OUTPUTS 15&16 (MENU 3.6)!16............................................................
7.3.7 AUDIO BASE RATE A (MENU 3.7)!16.............................................................
7.3.8 AUDIO BASE RATE B (MENU 3.8)!16..............................................................
7.3.9 MUTE ON UNLOCK (MENU 3.9)!16...............................................................
7.4 Network!17....................................................................................................................
7. 4 .1 N E T 1 ( M E N U 4 .1 ) !17....................................................................................
7.4.2 NET 2 (MENU 4.2)!17....................................................................................
7.4.3 NET 3 (MENU 4.3)!17....................................................................................
7.4.4 NET 4 (MENU 4.4)!17....................................................................................
7.5 PTP!18............................................................................................................................
7.5.1 PORTS MODES (MENU 5.1)!18......................................................................
7.5.2 GRANDMASTER [GROUP] (MENU 5.2)!18.....................................................
7.5.3 PORT 1 (MENU 5.3)!18.................................................................................
7.5.3.1 Port 1 Controls (Menu 5.3.1)!18..............................................................
7.5.3.2 Port 1 Timing (Menu 5.3.2)!19................................................................
7.5.3.3 Port 1 Independent Master (Menu 5.3.3 )!19...........................................
7.5.4 PORT 2 (MENU 5.4)!19.................................................................................
7.5.5 PORT 3 (MENU 5.5)!19.................................................................................
7.5.6 PORT 4 (MENU 5.6)!19.................................................................................
7.6 GPS!19..........................................................................................................................
7.7 Time!20..........................................................................................................................
7.7.1 TIME STANDARDS (MENU 7.1)!20..................................................................
7.7.2 REAL TIME CLOCK (MENU 7.2)!2 0..................................................................
7.7.3 TIME & DATE DISPLAY (MENU 7.3)!21.............................................................
7.7.4 LEAP SECONDS (MENU 7.4)!21......................................................................
7.8 Time Code!21.................................................................................................................
7.9 GPIO!21.........................................................................................................................
7.9.1 GPIO INPUTS (MENU 9.1)!21.........................................................................
7.9.2 GPIO OUTPUTS (MENU 9.2)!21.....................................................................
7.10 Presets!22.....................................................................................................................
7.11 Utility!22.......................................................................................................................
7.11.1 BRIGHTNESS (MENU 11.1)!22.......................................................................
7.11. 2 F RO N T PA N E L LO C KO U T ( M E N U 11. 2 ) !2 2....................................................
7.11.3 CLEAR MEMORY (MENU 11.3)!2 2.................................................................
7.11. 4 R E B O OT ( M E N U 11. 4 ) !2 2.............................................................................
7.11.5 FEATURE KEYS (MENU 11.5)!22....................................................................

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DXD-16 User Manual (rev 2.00)
8. RTC (Real Time Clock)!22.............................................................................................................
9. Lock Status!23.............................................................................................................................
10. PTP Port States!24......................................................................................................................
11. PTP Set Ups!24...........................................................................................................................
11.1 B O U N DA R Y C LO C K !2 4...................................................................................
11.2 4-MASTER PORTS ON A SINGLE DOMAIN WITH GPS REFERENCE!25............
11.3 4-MASTER PORTS ON SEPARATE DOMAINS WITH GPS REFERENCE!25..........
11.4 HYBRID SYNC GENERATOR ACCEPTING MULTIPLE REFERENCES!26................
11.5 PTP PRIMARY AND SECONDARY NETWORKS!26............................................
11.6 DISTRIBUTED PTP VS. INDIVIDUAL GRANDMASTERS WITH GNSS!27...............
12. Input rate: Learn vs. Set!27.........................................................................................................
12.1 BNC INPUT SET UP MENU!27..........................................................................
12.2 ABOUT USING THE ‘SET’ MODE FOR THE REFERENCE SOURCE!28................
13.3 OFF SPEED REFERENCE!28.............................................................................
13. Source Reference Failover!28......................................................................................................
13.1 REFERENCE FAILURE WITH AN ALTERNATE REFERENCE!28.............................
13.2 REFERENCE FAILURE WITH NO ALTERNATE REFERENCE!29............................
13.3 SYNC PARAMETERS (MENU 1.2)!29...............................................................
14. Firmware Updates!29.................................................................................................................
14.1 FIRMWARE LOADER PAGE!29.........................................................................
14.2 PROGRAMMING SEQUENCE!30....................................................................
14.3 FIRMWARE FILE NAMING CONVENTION!30..................................................
14.4 UPLOADER!30................................................................................................
15. Remote Control!30.....................................................................................................................
16. GPIO / LTC connector (DB-25)!31................................................................................................
16.1 GPIO!31.........................................................................................................
16.2 1PPS/GPO!31.................................................................................................
16.3 LTC!31............................................................................................................
17. Non-Volatile Storage!31..............................................................................................................
18. Power!31...................................................................................................................................
18.1 POWER FAILURE W/ DUAL POWER SOURCES!31............................................
19. PTP (Precision Time Protocol)!32..................................................................................................
19.1 TIME AND PHASE!32......................................................................................
19.2 WHAT IS PTP?!32............................................................................................
19.3 A/V OVER IP APPLICATIONS!32.....................................................................
19.4 PTP DESCRIPTION!32......................................................................................
19.5 SELECTING A GRANDMASTER!33..................................................................
19.6 SYNCHRONIZATION!33.................................................................................

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19.7 DELAY MEASUREMENT MECHANISM!34........................................................
19.8 TYPES OF CLOCKS!34.....................................................................................
19.9 PTP DOMAINS!34...........................................................................................
19.10 PTP PROFILES!34...........................................................................................
19.11 EPOCH!35.....................................................................................................
20. Notes on PTP (Precision Time Protocol)!35...................................................................................
21. Appendix!36..............................................................................................................................
21.1 APPENDIX A: VIDEO INPUT FORMATS!36.......................................................
21.2 APPENDIX B: AUDIO BASE RATES!36..............................................................
21.3 APPENDIX C: PULLED RATES!36......................................................................
21.4 APPENDIX D: MULTIPLIER RATES!37.................................................................
21.5 APPENDIX E: DB-25 PINOUT & GPIO CIRCUITRY!37.........................................
21.6 APPENDIX G: FACTORY PRESETS!39................................................................

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DXD-16 User Manual (rev 2.00)
1. Introduction
The DXD-16 Universal Clock is designed to be the central source of time in a modern A/V installation. It combines PTP, GPS
and legacy sync signals such as Word Clock, AES and Video Sync, making it truly universal by keeping the traditional audio/
video equipment and IP networks in perfect sync.
The DXD-16 has the capability of being a PTP slave or a PTP Grandmaster.
•As a PTP slave, the DXD-16 can generate legacy sync so that the legacy equipment locks to the network.
•As a PTP master, the DXD-16 can lock to external sync sources such as WC, AES or video sync so that the network
locks to the legacy equipment.
•It can also act as a stand-alone master, locked to its internal oscillator (or optionally to GPS) providing sync to the
network via the PTP ports and the legacy equipment via the Universal Outputs, simultaneously..
-On the PTP side, 4 independent Ethernet ports are included. Each port can be either a PTP Grandmaster, a PTP slave or part
of boundary clock.
-The precision multi-format reference generator provides up to 6 different legacy clocks simultaneously. The 16 universal
outputs can be configured for any of the generated signals, giving the DXD-16 great flexibility.
-The DXD-16 has a battery backed-up internal Real Time Clock ‘RTC’ that can generate TIME information when the selected
reference does not have it, such as WC, AES or Video Sync.
-An optional GPS receiver can be installed in the DXD-16 providing an extremely accurate timing source and enabling
multiple DXD units in remote locations to be locked and in phase with one another. Additionally, with the DXD/GPS option,
the DXD-16 locked to GPS has a higher priority for PTP Grandmaster status.
IEEE-1588
ETHERNET (port 1)
PTP
DB25
TIME CODE (option)
TC 1
TC 2
INT
OCXO
ANT
GPS
ETHERNET (x4)
UNIVERSAL OUTPUTS
SYNC
POSITION
(TIME SOURCES)
INT
TCXO
RATE
(REFERENCE SOURCES)
SYNC
TIME
SELECT
REFERENCE
SELECT
ETHERNET (x4)
15
16
1
2
3
4
BNC OUT 1- 4
BNC OUT 5 - 8
BNC OUT 9&10
BNC OUT 11&12
BNC OUT 13&14
BNC OUT 15&16
9
10
11
12
13
14
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
BNC IN B
WC
AES
VID
10MHz
BNC IN A
WC
AES
VID
10MHz
NTP
INTERNAL
TIME OF DAY
CLOCK
&
REFERENCE
FRAME
GENERATOR
SYNC TC1
TC2
DXD-16 DIAGRAM
5
6
7
8
• WC
• AES
• VID
• 10 MHz
• 1PPS
• WC
• AES
• VID
• 10 MHz
• 1PPS
• WC
• AES
• VID
• 10 MHz
• 1PPS
• WC
• AES
• VID
• 10 MHz
• 1PPS
• WC
• AES
• VID
• 10 MHz
• 1PPS
• WC
• AES
• VID
• 10 MHz
• 1PPS
IEEE-1588
ETHERNET (port 2)
IEEE-1588
ETHERNET (port 3)
IEEE-1588
ETHERNET (port 4)
INT
RTC
ETHERNET (x4)
PTP (BMCA)
ANT
GPS
BNC / SDI
Time Code
PTP (BMCA)
Rate & Position Rate Only Position Only

DXD-16 User Manual (rev 2.00)
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2. Installation
2.1 UNPACKING
When unpacking your DXD-16 the following items should be in the shipping carton:
•DXD-16 unit
•IEC power cable
•Registration card
2.2 INSTALLING THE DXD-16
The DXD-16 is designed to be mounted in a standard 19” rack. It requires 1U in height. Usual precautions should be respected
when wiring the DXD-16: use high quality cables with good shield to guarantee a good signal transmission. Keep your cables
as short as possible. The type of cables required are specified in chapter 4.
To preserve the integrity of the transmission line, it is recommended that you do not ‘mult’ a single output to multiple devices as
it can degrade signal quality.
The BNC reference input needs to be properly terminated. If the DXD-16 is the last device in the chain, turn on the 75Ω
termination switch on the rear panel. If you are looping through using a ‘T’ connector (again, not recommended), turn off the
termination switch and make sure there is a 75Ωtermination at the end of the chain.
3. Quick Start
You should read this manual to familiarize yourself with the DXD-16 features. The following simple steps are only provided to
get you started right away.
Connect the supplied IEC power cable to the AC input connector (Power A) and plug it into a wall outlet. The DXD-16 will turn
on automatically when power is connected. Power up takes approximately 50 seconds. After about 10 seconds, the display
will light up showing the different steps and a progress bar.
Out of the box, the DXD-16 is set to generate NTSC video sync, referenced to its internal crystal. This signal is sent to all 16
outputs. The 4 PTP ports are in the DISABLED mode. DHCP is activated on each port so IP addresses will be provided
automatically.
To make changes, press the [SET UP] button and navigate to the required menu using the [UP] and [DOWN] buttons then
pressing the [NAV ▶] key.
•To change the reference, go to menu 1.
•To change the outputs, go to menu 3.
•To change the IP addresses, go to menu 4.
•To change the PTP ports settings go to menu 5.
Once you are in the right menu:
•use the [NAV ▶] key to navigate to the right field;
•use the [UP] and [DOWN] keys to change the value;
•press the [ENTER] key to save the changes.
For more details on menu navigation, go to 6.3. For details on the different menus, go to chapter 7.

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DXD-16 User Manual (rev 2.00)
4. I/O’s Description and Cable Requirements
4.1 AC POWER
Universal power input, accepts 100 to 240 VAC.
Connector: IEC inlet - Fuse: 5A 125VAC 5X20MM
☛Use an IEC power cable and connect to an 100/240 AC wall outlet.
4.2 ANTENNA (OPTION)
This port is used to connect a GNSS antenna to the optional DXD/GPS receiver.
Connector: SMA jack
☛Use 50Ωcoaxial cable to connect the GNSS antenna as specified in the DXD/GPS instructions manual.
4.3 GPIO / TC OUT / 1PPS I/O / RS-232
The 25pin connector is used for GPIO’s, balanced TC outputs and 1 PPS output as well as future developments (reserved pins).
Connector: DB-25 female receptacle
☛Use a custom DB-25 cable per the pin out described in appendix E
4.4 HD/SDI (option)
Connectors: BNC IN + BNC Loop Through
☛Use standard 75ΩBNC coaxial cables (see DXD/SDI manual).
4.5 ETHERNET PORTS
4 independent Gb Ethernet ports used to connect the DXD-16 to a network for PTP sync or to control the unit remotely and
upload firmware from any computer on the network. Remote control and firmware update is from port #4 only.
Connectors: RJ45 jack
☛Use a standard cat5 or cat6 Ethernet cable with RJ45 plugs.
4.6 REFERENCE INPUTS & TERMINATION SWITCHES
The 2 BNC inputs accept WC, AES, Video Sync and 10MHz based on the user selection (INPUTS Menus - see Appendix A for
a list of supported HD & SD video formats). 10MHz is a sine wave typically 1/2 v, coming from a GPS receiver, a rubidium
clock or other types of generators.
Connectors: BNC
☛Use standard 75ΩBNC coaxial cables.
Each input has a 75Ωtermination switch. Under normal conditions, it should be on. However, if a ‘T’ BNC is used to ‘daisy-
chain’ the reference to another unit (not recommended), termination should be off on the DXD-16. The last unit in the chain,
and only that unit, should have its termination on.
4.7 UNIVERSAL OUTPUTS
BNC outs 1-16 can output Word Clock, AES, 10MHz (1v pk-pk sine wave), HD Video Sync, or SD Video Sync, based on the
user selection (BNC OUTPUTS menus).
Connector: BNC
☛Use standard 75ΩBNC coaxial cables.
4.8 DC POWER
In addition to AC, the DXD-16 can also be powered by a 12VDC @ 48W source. Acceptable range is 11VDC to 17VDC.
For redundancy, the DC source can be connected together with the AC source.
To order a DC power supply (p/n PS-9), contact your dealer.
Connector: 4 pin circular connector
☛Insert the 4 pin plug into the rear panel jack and secure by screwing the ring. Plug the supply into the wall using the
standard IEC cable supplied.

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5. Front Panel Display & LED’s
5.1 FRONT PANEL DISPLAY
The DXD-16 front panel has a large full color display giving access to all the unit’s parameters and settings.
In the normal operating mode, information is presented on the display in multiple pages referred to as the ‘Main
Rotation’ (see chapter 6).
In addition to the normal operating mode, two additional modes exist that affect the display:
•SET UP Mode
•STATUS Mode
These two specialized modes are activated by pressing the corresponding button to the right of the navigation buttons. An LED
lights up for each of these modes indicating activation.
In the STATUS mode, the displays shows additional status information organized on multiple pages, much like the Main
Rotation pages (see chapter 6).
The SET UP mode is used to set the unit’s parameters as described in 6.3.
Note that SET UP and STATUS modes are mutually exclusive. It means that, if you press the STATUS button while in the SET UP
mode, you will exit the SET UP mode and enter the STATUS mode, and vice-versa.
5.2 FRONT PANEL LED’S
There are 12 status LED’s to the right of the display insert area:
•IN A:! !a signal is present at the Input A connector;..................................
•TERM OFF A:! !the rear panel termination switch is off (see 4.6);......................
•IN B:! !a signal is present at the Input B connector;..................................
•TERM OFF B:! !the rear panel termination switch is off (see 4.6);......................
•GNSS/GPS:! !a signal is present at the antenna input (optional).......................
•HD/SDI:! !a signal is present at the SDI input (optional).............................
•NETWORK 1:! !port 1 of the DXD-16 is connected to a network.....................
•NETWORK 2:! !port 2 of the DXD-16 is connected to a network.....................
•NETWORK 3:! !port 3 of the DXD-16 is connected to a network.....................
•NETWORK 4:! !port 4 of the DXD-16 is connected to a network.....................
•POWER A:! !AC Mains is connected to the Power A connector..........................
•POWER B:! !12VDC power is connected to the Power B connector..........................
Note that, if one of the power LED’s is flashing, it indicates that power was present at that connector but
then disappeared, possibly due to a faulty power supply, and the other power source took over (see
chapter 18 for more information).

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DXD-16 User Manual (rev 2.00)
6. Display
6.1 Main Rotation
In the standard operating mode, with neither the Status mode nor the Set Up mode activated, information is presented on the
display in multiple pages referred to as the ‘Main Rotation’.
To rotate through the different pages, press the [◀BACK] or [NAV ▶] key.
6.1.1 MAIN ROTATION PAGES LAYOUT
Pages in the main rotation all have a similar structure, made up of several lines arranged in 3 different sections:!
•HEADER (top line):
Contains the page title. It has a blue background and white letters + left and right navigations arrows.
•BODY:
Contains the page data. If required, a scroll bar appears on the left. Pressing the [UP] or [DOWN] buttons displays
additional content.
•FOOTER (bottom 2 lines):
-Reference: source and errors or special conditions (see chapters 12 & 13).
-Lock status. See chapter 9. The background color changes to reflect the lock condition: green, orange or red.
6.1.2 MAIN ROTATION PAGES
• OUTPUTS
This page indicates the rate, format and signal type of each of the 6 BNC output groups. For audio rates, if VSO is
engaged, it is also indicated.
•PTP PORTS
This page shows the setting and the state of each of the 4 PTP ports in
colors for easy identification. The setting will appear as white letters on
grey background: (Off , Master/Slave group , Independent Master).
Then the display will indicate the state of the ports as they change in bold
letters with the following colors:
-SLAVE!black letters!yellow background
-GRANDMASTER!black letters!bright green background
-Indep. MASTER!white letters!blue background
-MASTER!white letters!green background
-Passive!white letters!dark grey background
PTP Grandmaster state is always determined by the BMCA. This applies to Master and Independent Master as well.
‘Master’ and ‘Slave’ are for ports in a Boundary Clock; ‘Independent Master’ is for ports set as such in menu 5.1.
For details on these states, see Ch. 10, PTP Ports States.
PageTitle
Page data
(w/ scrollbar
when required)
Reference Info
Lock Status Bar
HEADER
BODY
FOOTER

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Page 11
• TIME & DATE
This page displays up to two different times & dates as set in menu 7.3.
The names of the DXD times selected in menu 7.3 appear in the left
column while the name of the standards selected in menu 7.1 appear in
the right column.
If ‘NO DISPLAY’ was set in menu 7.3 for the Lower Display, this page will
only show 1 time & date.
• REFERENCE SOURCES
This page shows the currently selected sources for Main and Alternate Reference. Also indicated are the rates and
formats of the reference signals. When PTP MODE is the selected Reference, the display indicates if GPS has been
selected as “LOCAL REF WHEN GM”.
6.2 Status Mode
Additional information pages are available in the Status Mode. To enter the Status Mode, press the [STATUS] button. When in
Status mode, the Status LED is on.
6.2.1 STATUS INFORMATION PAGES LAYOUT
Status pages are formatted similarly to the Main Rotation pages, with a green header but no footer. Up to 10 lines of
information can be displayed on the screen at a time. A green scroll bar will appear on the left of the screen for pages with
more than 10 lines.
To change page, use the [◀BACK] and [NAV ▶] keys; to scroll, use the [UP] and [DOWN] keys.
6.2.2 STATUS INFORMATION PAGES
• UNIT INFORMATION
This page shows the following information:
•Model
•Serial Number
•Version:
•Software
•Logic
•Webpage
•Network 1-4:
•DHCP Mode
•IP Address
•Mac Address
• TIMES
The TIMES status page has multiple running counters showing the different DXD times available:
-System Time: Main DXD TOD clock
-RT Clock: continuously running internal back-up clock
-Grandmaster: time from the external PTP Grandmaster
-GPS (optional): GPS Time from the DXD/GPS receiver
The TIMES status page also includes additional times such as GPS or Time Code when the options are installed.
• PTP
The PTP status page gives more detailed information than the Main Rotation display. This page is not available in version
2.0. Please check on upcoming revisions.
Additional status pages are also available for options such as GPS or Time Code.

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DXD-16 User Manual (rev 2.00)
6.3 Set Up Mode
In Set Up mode, all parameters are accessible and can be changed by the user via the front panel.
To enter the Set Up mode, press the [SET UP] button. The Set Up LED lights up. To exit the Set Up mode, press the [SET UP] key
again and confirm that the Set Up LED is off.
6.3.1 MENU LEVELS
The Set Up mode has different levels. Typically, levels 1 & 2 are SELECT levels, made up of lists of menus organized in logical
groups. The number of SELECT levels varies from 1 to 3 depending on the menu. For example, menu 8 (Presets) only has 1
SELECT level and menu 4 (Networks) has 3. The last level is the SET level, where parameters are set and saved.
!SELECT LEVEL 1!!SELECT LEVEL 2! ! SET LEVEL
6.3.2 NAVIGATION
The navigation keys have different functions depending on the level.
• SELECT LEVELS (1, 2 or 3)
•Use the [UP] and [DOWN] buttons to select a menu from the list. The current selection is highlighted (black letters,
white background). Pressing the [down] button passed the lowest item on the list rotates back to the top of the list.
•Press the [NAV ▶] button to navigate to the next level.
•Press the [◀BACK] button to go back to the previous level.
• SET LEVEL
•Use the [NAV ▶] button to navigate to the next field. The currently selected field is highlighted (yellow letters on black
background). Pressing the [NAV ▶] button passed the last field on the page rotates back to the first one.
•Use the [UP] or [DOWN] buttons to change the value of the selected field.
•Use the [◀BACK] button to go back to the previous Level and exit the current one.
6.3.3 ENTER KEY
After modifying a value, a red border around the edited field appears. To save this new value, press the [ENTER] key. After the
[ENTER] key is pressed, the red border disappears, indicating the modification has been saved.
If the cursor is moved to another field without pressing the [ENTER] key first, the red border remains indicating a change was
made but not saved yet.
To exit the Set Up mode without making any change, press the [SET UP] key without pressing the [ENTER] key. Note that exiting
the SET Level by pressing the [◀BACK] key without pressing the [ENTER] key first also causes unsaved changes to be lost.
6.3.4 STATUS VALUES
In the SET level, the line at the bottom of the display (light blue background) indicates status values. Status values are the
values actually obtained, based on a menu selection.

DXD-16 User Manual (rev 2.00)
Page 13
6.3.5 MENU GROUPS
In the current firmware revision, menus are organized in 9 separate groups:
•1. REFERENCE & SYNC
•1.1 Reference
•1.2 Sync Parameters
•2. BNC INPUTS
•2.1 BNC Input A Set Up
•2.2 BNC Input B Set Up
•3. BNC OUTPUTS
•3.1 BNC Outputs 1-4
•3.2 BNC Outputs 5-8
•3.3 BNC Outputs 9&10
•3.4 BNC Outputs 11&12
•3.5 BNC Outputs 13&14
•3.6 BNC Outputs 15&16
•3.7 Audio Base Rate A
•3.8 Audio Base Rate B
•3.9 Mute On Unlock
•4. NETWORK
•4.1 Net 1
•4.2 Net 2
•4.3 Net 3
•4.4 Net 4
•5. PTP
•5.1 Port Modes
•5.2 Boundary Clock
•5.3 Port 1 (Controls, Timing, Independent Master)
•5.4 Port 2 (Controls, Timing, Independent Master)
•5.5 Port 3 (Controls, Timing, Independent Master)
•5.6 Port 4 (Controls, Timing, Independent Master)
•6. GPS
•6.1 Satellites Selections
•6.2 Advanced GPS Settings
•7. T I M E
•7.1 Time Standards
•7.2 Real Time Clock
•7.3 Time & Date Display
•7.4 Leap Seconds
•8. TIME CODE
•9. GPIO
•10. PRESETS
•11. U T I L I T Y
•11.1 Brightness
•11.2 Front Panel Lockout
•11.3 Clear Memory
•11. 4 R e b o o t
•11. 5 F e a t u r e Ke y s
For detailed description of all the parameters and settings in each of these menus, go to chapter 7.

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7. M e n u s D e s c r i p t i o n
7.1 Re f e r e n c e
7.1.1 R E F E R E N C E ( M E N U 1.1 )
Menu 1.1 lets you select one of the following sources to be used as the DXD-16’s reference:
!- Internal
- BNC Input A
- BNC Input B
- PTP Mode
- GPS (available only with the optional GPS/GNSS receiver - see DXD/GPS users manual for information)
•INTERNAL is the DXD-16 oscillator (TCXO); if the OCXO option is installed, INTERNAL automatically uses the OCXO
oscillator and the display indicates ‘Internal/OCXO’.
•BNC INPUTS A and B are defined in menus 2.1 and 2.2
•PTP Mode is a little different. It is required for the DXD-16 to be a PTP slave, i.e. ‘referenced’ to a PTP Grandmaster.
However, selecting PTP Mode means that the DXD-16 ports set to ‘Master/Slave Group’ will participate in the PTP
Grandmaster selection and will either be a PTP Slave or the Grandmaster based on the outcome of the BMCA (see 19.5).
Explanatory text has been added to the REFERENCE select menu when PTP Mode is activated.
If none of the ports have been set to ‘Master/Slave Group’ (menu 5.1) the DXD will lock to its internal crystal and a warning
message with a link to menu 5.1 will appear inviting you to change the mode of at least one port. If ‘No’ is chosen, a confirmation
warning appears. With no port enabled, the LOCK bar at the bottom of the Main Rotation display will indicate NO PORT.
Depending on which reference was selected, additional fields will appear below the SOURCE field:
•SIGNAL and RATE: when selecting Input A or Input B, these status field indicate the signal type and the rate of the
selected reference, as defined in menus 2.1 and 2.2.
•ALTERNATE REFERENCE: when BNC INPUT A has been selected as the reference, this field allows you to select BNC
INPUT B as an alternate source to be used as a fail-safe back up. Note that, to guarantee a smooth transition, both
sources must have the same format and rate. For more on Alternate Reference, see chapter 13.
Note that, if there is no alternate reference, the DXD-16 will always revert to INTERNAL if the reference disappears.
•LOCAL REF WHEN GM: in PTP Mode, if the optional DXD/GPS receiver has been installed, this fields enables the
GPS to be set as the reference for when the DXD is selected as the PTP Grandmaster, giving the DXD a better chance
at being selected by the algorithm.
There are no additional fields when the reference source is ‘INTERNAL’ or ‘GPS’.
PTP REFERENCE
WARNING
No Master/Slave Ports
Would you like to set the
PORT MODE now?
Press UP for Yes
Press DOWN for No

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7.1.2 SYNC PARAMETERS (MENU 1.2)
Sync Parameters control the way the DXD syncs (jump or slew) when there is an offset between its internal TOD clock (system
time) and the selected reference, for example after a drop out.
•JUMP THRESHOLD: When the difference between the internal TOD and the reference is above the Jump Threshold,
the DXD will not attempt a smooth transition (slew) but will instead jump to the new time.
Value can be adjusted from 30 ms to 1 sec, or set to ‘Never’.
7. 2 B N C I n p u t s
7.2.1 BNC INPUT A SET UP (MENU 2.1)
The 2 BNC Universal inputs can accept WC, AES (AES-3id unbalanced), 10 MHz and video sync (HD & SD - see Appendix A
for a list of supported video inputs).
Menu 2.1 lets you select the type of input connected to BNC INPUT A and its rate.
•SIGNAL: WC, AES, 10 MHz or Video Sync
•LEARN/SET: LEARN is the default value. With LEARN, the DXD-16 determines the incoming rate; with SET, the user
determines the incoming rate. For more information on LEARN vs. SET, go to Chapter 13.
•RATE: If LEARN is selected, the rate field is Status only (pale Blue) and cannot be changed. If SET is selected, the user
can select a rate from a list, based on the type of Signal selected.
NOTE: If the wrong kind of signal is selected, an error message will appear on the display saying: ‘REF ERROR’.
7.2.2 BNC INPUT B SET UP (MENU 2.2)
Menu 2.2 is identical to menu 2.1 for BNC Input B except for the following.
If BNC INPUT B is set up differently than BNC INPUT A, a warning message appears on the bottom line: ‘ALT REF
INCOMPATIBLE’.
As mentioned above, to switch smoothly between 2 different sources in the event of a reference failure, these must be identical
(see chapter 13 for more information on Alternate Reference).
7. 3 B N C O u t p u t s
The DXD-16 generates 6 different reference signals simultaneously, each of them sent to a different group of BNC outputs, as
described below. Each of these universal output groups can output WC, AES, Video Sync or 10MHz.
7.3.1 BNC OUTPUTS 1-4 (MENU 3.1)
Menu 3.1 defines BNC outputs 1-4
•SIGNAL : this field defines the type of signal generated (WC, AES, 10 MHz or Video Sync).
Based on the signal selected, additional fields appear to define more parameters:
•Audio (WC or AES)
-BASE & MULT: Base Rates A or B as defined in menus 3.7 or 3.8 followed by a multiplier (x1, x2, x4, x8)
-ACTUAL: The actual rate will be indicated in this field.
•Video Sync (SD & HD)
-RATE: select a video rate from a list (see appendix A).
•10MHz
-no additional field.

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7.3.2 BNC OUTPUTS 5-8 (MENU 3.2)
Menu 3.2 is identical to menu 3.1 for BNC outputs 5-8.
7.3.3 BNC OUTPUTS 9&10 MENU (3.3)
Menu 3.3 is identical to menu 3.1 for BNC outputs 9&10.
7.3.4 BNC OUTPUTS 11&12 (MENU 3.4)
Menu 3.4 is identical to menu 3.1 for BNC outputs 11&12.
7.3.5 BNC OUTPUTS 13&14 (MENU 3.5)
Menu 3.5 is identical to menu 3.1 for BNC outputs 13&14.
7.3.6 BNC OUTPUTS 15&16 (MENU 3.6)
Menu 3.6 is identical to menu 3.1 for BNC outputs 15&16.
7.3.7 AUDIO BASE RATE A (MENU 3.7)
For audio outputs (Word Clock or AES), two different base rates are available, labeled Audio Base Rate A & B. Menu 3.7
defines Audio Base Rate A.
•SET/AUTO: SET is the default value; AUTO is a special function, available only when the input reference is an audio signal.
With AUTO, the DXD-16 automatically determines the incoming rate and uses that as the base rate. The advantage is that, if
the rate of the input reference changes, so does the generated output, automatically.
•RATE: If SET was selected, a rate can be selected form a list that includes 32K, 44.1K and 48K + all the pull coefficients (see
appendix B). If AUTO was selected, the measured rate of the reference is displayed here (status only).
Note that, with AUTO selected, if the rate of the input reference is a multiple of one of the basic rates, 96K for example, the
basic rate will be used instead, 48K in this example.
•VSO/CENTS: VSO stands for Variable Speed Oscillator and was a way to vary the speed of old analog tape machines.
This function, when activated, allows you to vary the rate of the audio outputs, and thus the pitch. As this function is mainly
used for musical applications, the speed adjustment is measured in cents (semi tone/100). The VSO range is +/- 200 cents,
i.e. 2 whole tones (+12.2562% to -10.9101%).
NOTES: When adjusting the VSO cents value in the menu, the changes take effect immediately. There is no need to
press [ENTER] for every speed change.
When VSO is on, the letters ‘VSO’ appear on the display next to the rate in the OUTPUTS main rotation page.
7.3.8 AUDIO BASE RATE B (MENU 3.8)
Menu 3.8 is identical to menu 3.7 for Audio Base Rate B.
7.3.9 MUTE ON UNLOCK (MENU 3.9)
To guarantee that the BNCs do not output any signal before the DXD achieves lock, which could cause issues with the
receiving equipment, menu 3.9 lets you mute the outputs while unlocked.
On = mute - Default value is off.
Each of the 6 output groups can be set independently: 1-4 / 5-8 / 9&10 / 11&12 / 13&14 / 15&16.

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7.4 Network
The Network menu has 4 identical and separate sub-menus, one for each of the DXD-16 ports.
7. 4 .1 N E T 1 ( M E N U 4 .1 )
• 7.4.1.1 NET 1 IP ADDRESS (MENU 4.1.1)
Menu 4.1.1 includes fields for DHCP, IP Address, Subnet Mask and Gateway.
DHCP stands for Dynamic Host Configuration Protocol. When on, the DHCP server automatically assigns the IP
address. The values in the 3 other fields are in blue, indicating status.
When DHCP is off, parameters must be entered manually in the next 3 fields. They are expressed in dot-decimal
notation made up of 4 numbers ranging from 0 to 255, separated by dots.
The bottom line on the display (blue background) indicates the current IP address.
Note that, when changing the DHCP mode, a reboot will be required and a message will indicate so in the display.
7.4.2 NET 2 (MENU 4.2)
• 8.4.2.1 NET 2 IP ADDRESS (MENU 4.2.1)
Menu 4.2.1 is identical to menu 4.1.1 for Net 2.
7.4.3 NET 3 (MENU 4.3)
• 8.4.3.1 NET 3 IP ADDRESS (MENU 4.3.1)
Menu 4.3.1 is identical to menu 4.1.1 for Net 3.
7.4.4 NET 4 (MENU 4.4)
• 7.4.4.1 NET 4 IP ADDRESS (MENU 4.4.1)
Menu 4.4.1 is identical to menu 4.1.1 for Net 4.

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7.5 PTP
This chapter describes the PTP menu settings. For general information on PTP, go to chapter 19.
7.5.1 PORTS MODES (MENU 5.1)
Each of the 4 DXD-16 ports can be set as:
-Master/Slave group
-Independent Master
-Disabled
-The ‘Master/Slave group’ setting is typically used to set the DXD-16 as a boundary clock where one port would be slave to
an external grandmaster and the others masters to what is ’downstream’, i.e. what is connected to that port (see first
diagram in chapter 11). This master/slave set-up could change as the BMCA determines which is the grandmaster. Like a
Boundary Clock, ports on a Group are all on the same domain.
Unlike a Boundary Clock, a Group does not require one of the ports to be a slave. If a reference other than PTP is selected
in menu 1.1, a message at the bottom of menu 5.1 will indicate “Master-only while Reference not PTP” and all ports in the
group will be Master-only. If the BMCA elects another unit as the PTP Grandmaster, this port becomes PASSIVE.
Note that, per IEEE 1588, if multiple ports of a boundary clock communicate to the same communication path (i.e. “see”
each other), the boundary clock shall place all of the involved ports in the PASSIVE state, except the port with the lowest
portNumber. This rule applies to the group setting.
-Ports set to ‘Independent Master’ can only be PTP Masters, not slaves, and are not part of the group. They are all on
separate PTP domains. If the BMCA elects another unit as the PTP Grandmaster for that domain, this port becomes PASSIVE.
-Ports set to ‘Disabled’ are in the PASSIVE mode.
To view the state of the PTP ports, go to the PTP Ports page of the main rotation display (see 6.1.2).
7.5.2 GRANDMASTER [GROUP] (MENU 5.2)
This menu lets you set the following fields for the ports set to ‘Master/Slave group’.
• Domain:!0 to 127; default = 0
• Priority 1:!0 to 255; default = 128
• Priority 2:!0 to 255; default = 128
Priorities are used in the BMCA to select the grandmaster - lower values have a higher priority.
7.5.3 PORT 1 (MENU 5.3)
Menu 5.3 has 3 sub-menus for setting different parameters related to port 1:
7.5.3.1 Port 1 Controls (Menu 5.3.1)
-Profile: Several profiles are supported by the DXD-16:
-PTP - Default PTP profile
-AES 67
-ST2059
-AVB - upcoming revision
-Profile Port Timing Action:
Among other things, IEEE1588 profiles define the range and default values of all configurable attributes.
This is very useful as selecting a specific profile on several networks would set all the parameters to the
default values and allow for a quick set up. However, if multiple profiles are selected in a Boundary Clock
using profile default values could become troublesome. In the case of the Announce Interval for example,
these values need to be uniform throughout a domain for the BMCA to function properly but AES67 and
ST2059 have different default values.
This field gives you the option to set the timing values to the profile default values.

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-Delay Mechanism: E2E / P2P / Disabled
Two delay modes are available: End-to-End and Peer-to-Peer.
In End-to-End mode, the sync, follow up, delay request and delay response messages go through the
network all the way between the master and slave.
In Peer-to-Peer mode, the Pdelay request and Pdelay response messages are local to each link in the
network. Each device determines the local link and device delays. The sync message from the master then
collects the corrections as it propagates from the master to slave.
End-to-End mode is useful in PTP networks using not-PTP-aware devices. By contrast, Peer-to-Peer mode
requires all of the devices to be PTP-aware.
7.5.3.2 Port 1 Timing (Menu 5.3.2)
-Announce Interval: 1/8sec - 16sec (log -3 to 4)
Sets the rate at which the master will send Announce messages.
Per IEEE 1588 this value should be uniform throughout a domain.
-Announce Receipt Timeout: 2 to 10 announce intervals
Sets the number of Announce messages that can be missed before it is assumed the master is no longer present
and the process of selecting a new one begins. Per IEEE 1588 this value should be uniform throughout a domain.
-Sync Interval: 1/128sec - 2sec (log -7 to 1)
Sets the rate at which the master will send Sync messages
-Min Delay Req Interval: 1 to 32 the number of Sync Interval
Sets the minimum time interval between 2 adjacent Delay Requests. This field shows a quantity of sync
intervals: “n sync intervals”, where n = 1,2,4,8,16,32 (when n=1 it will say “1 sync interval”). This change
does *not* apply to the peer-to-peer “MIN PDELAY REQ INTERVAL”.
7.5.3.3 Port 1 Independent Master (Menu 5.3.3 )
This menus only appears if the port has been set to ‘Independent Master’ in the Ports Mode menu (menu 5.1) It is
identical to menu 5.2 and let you set the following fields:
• Domain:!0 to 127; default = 101 port1/ 102 port 2/ 103 port 3/ 104 port 4
• Priority 1:!0 to 255; default = 128
• Priority 2:!0 to 255; default = 128
Priorities are used in the BMCA to select the grandmaster - lower values have a higher priority.
7.5.4 PORT 2 (MENU 5.4)
Menu 5.4 is identical to Menu 4.3 and its 3 sub-menus for port 2.
7.5.5 PORT 3 (MENU 5.5)
Menu 5.5 is identical to Menu 4.3 and its 3 sub-menus for port 3.
7.5.6 PORT 4 (MENU 5.6)
Menu 5.6 is identical to Menu 4.3 and its 3 sub-menus for port 4.
7.6 GPS
The GPS group of menus is only available if the DXD/GPS receiver is installed. If not a message will appear:
The DXD/GPS is a small board that installs easily inside the DXD. For menu details, please refer to the DXD/GPS manual.
DXD/GPS NOT INSTALLED
The GPS Receiver is required for these menus.
To purchase please contact your Brainstorm dealer.

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7.7 Time
7.7.1 TIME STANDARDS (MENU 7.1)
Four different time standards are available as well as local time:
•TAI: International Atomic Time, an atomic coordinated time that has been measuring time continuously since 1955 with
no leap seconds. It is used as a base by other standards such as UTC.
•UTC: Coordinated Universal Time is the time zone ‘0’ from which all other time zones are calculated. It is based on
TAI and since 1972 has had leap seconds every year or so, depending on the earth’s rotation.
•GPS: Global Positioning System time is used by the atomic clocks in the GPS satellites. It is continuous time (no leap
seconds) measured from the GPS time zero point of midnight January 5, 1980. It is 19 seconds behind TAI.
•Loran: Long Range Navigation time based on atomic clocks. Like GPS, it is continuous time with no leap seconds
measured from the time zero point of midnight January 1st, 1958.
•Local: Local time is based on UTC and can have adjustments for time zone and Daylight Saving (menu 7.1).
Menu 7.1 lets you pick which of these standards or local time will be used to display the following DXD times:
•System Time, the main Time Of Day clock at the heart of the DXD
•RTC, Real Time Clock, a constantly running, battery-backed-up clock inside the DXD
•Grandmaster, time received on the Ethernet port from the PTP Grandmaster
•GPS, time received from the GPS receiver (optional)
To avoid confusion, it is recommended to use one standard for all DXD times. The default value is TAI. But some users may
prefer to use Local Time instead while others may even prefer different standards for different times.
Be aware that, even though the time source may give Time Of Day, it may not correspond to the time indicated on a wall clock
as it would depend on the standard used or even on the accuracy and settings of the source time.
There are 2 other Local Time parameters in menu 7.1:
•Time Zone: can be adjusted in hours and minutes with a positive or
negative value, relative to UTC (or GMT)
•Daylight Saving: can be adjusted in hours and minutes (typically 1 hr).
DST can only be set manually.
At the bottom of this page a ‘hint’ message appears for setting the time zone
properly: NY -5, Tokyo +9.
7. 7. 2 R E A L T I M E C LO C K ( M E N U 7. 2 )
Menu 7.2 lets you set several parameters of the RTC (Real Time Clock), the DXD internal back up clock described in chapter 11.
•Set Time: YYYY/MM/DD and HH:MM:SS: These fields let you enter manually a date and a time that will become
the current date and time of the RTC when the [ENTER] key is pressed.
•System Time Jam From RT Clock: With ‘Press ENTER to Jam’ selected, the Main TOD Clock (System Time) will
Jam from the internal RTC Time when the [ENTER] key is pressed.
Note that depending on the offset between the 2 clocks, this action will most certainly create a certain amount of
‘sync shock’ as all the outputs are locked to the System Time.
•Auto Update RT Clock: When this function is turned on, the RTC is automatically updated with the date & time
information from GPS. This update occurs within a second of when the feature is turned on, then every 1.2 hr. Options
are “From GPS” or “Off”.
This field does not appear if the DXD/GPS card is not installed.
At the bottom of this page the RTC Time is displayed along with the Time Standard set up in menu 7.1