DCD-24 User Manual (rev 1.00)
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DCD-24 User Manual (rev 1.00)
Table of contents
1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. I/O’S DESCRIPTION AND CABLE REQUIREMENTS
. . . . . . . . . . . . . . . . . . . 3
4. QUICK START
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5. FRONT PANEL DISPLAY & LED’S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6. NAVIGATION KEYS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7. MENU NAVIGATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
8. MENUS DESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output WC Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Outputs 9-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
9. NON-VOLATILE STORAGE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
10. LOCK STATUS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
11. DEFINING THE REFERENCE RATE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
12. SOURCE REFERENCE FAILURE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
13. ETHERNET
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Ethernet IP Settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Main HTML Page
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
14. FIRMWARE UPDATE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Firmware Update Page
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Complete vs. software
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Programming Sequence
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Programming Errors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Loader
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
15. APPENDIX
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Video Input Formats
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Pulled Rates
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Multiplier Rates
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Word Clock phase alignment to Video
. . . . . . . . . . . . . . . . . . . . . . . . 16
Factory Default Settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2. Installation
2.1. UNPACKING
When unpacking the DCD-24 the following items should be in the shipping
carton:
• DCD-24 unit
• Universal Power Supply (12VDC @ 16w)
• IEC power cable
• Owner’s Manual & Registration card
2.2. INSTALLING THE DCD-24
The DCD-24 is designed to be mounted in a standard 19” rack. It requires
1U in height. Ideally, it should be located near your AD/DA and in the same
rack.
Usual precautions should be respected when wiring the DCD-24: use high
quality cables with good shield to guarantee a good signal transmission.
Keep your cables as short as possible.
Devices connected to the DCD-24’s WC outputs need to be terminated. If no
termination is provided on the device, use a BNC-T with a 75Ω termination. If
multiple devices are connected to a single DCD-24 WC output, only the last
device in the chain should be terminated. However, to preserve the integrity
of the transmission line, it is recommended that you do not daisy-chain word
clock outputs as it can significantly degrade signal quality.
3. I/O’s Description and Cable Requirements
3.1 POWER
The DCD-24 requires 12VDC @ 18W. Acceptable range is 12VDC +/-15%.
The external supply provided with the
DCD-24
accepts 100 to 240 VAC input
at 50 - 60 Hz so it is suitable for use anywhere in the world.
Optionally, a second power supply can be connected to Power Input B for
redundancy. To order a second power supply contact your dealer.
☛
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.
1. Introduction
Congratulations on purchasing the DCD-24 Word Clock Distributor. The DCD-24 is
designed to distribute and generate extremely low-jitter Word Clock.
The DCD-24 can generate any standard rate, up to 192KHz, with any of the pull
coefficients. It can also generate non standard rates using the VSO.
The DCD-24 can be used as a stand-alone master clock generator or genlocked to
an external reference. As with the DCD-8, the generated frequency does not need
to be a multiple of the reference frequency. For example, the DCD-24 can generate
44.1KHz referenced to a 96KHz source.