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DCD-24 User Manual (rev 1.00)

Page 15

Page 14

DCD-24 User Manual (rev 1.00)

15. Appendix

15.1 VIDEO INPUT FORMATS

The following table lists all the video formats recognized by the DCD-24 as reference:

 

525i/29.97 NTSC

 

625i/25 PAL

 720p/50

 720p/59.94

 720p/60

 

1080i/25

 

1080i/25  295M

 

1080i/29.97

 

1080i/30

 1080sF/23.976

 1080sF/24

 1080sF/25

 1080sF/29.97

 1080sF/30

 1080p/23.976

 1080p/24

 1080p/25

 1080p/29.97

 1080p/30

 1080p/50

 

1080p/50   295M

 1080p/59.94

 1080p/60 

Not supported are the low frame rate 720p formats.

15.2. PULLED RATES
Here is a list of the standard and pulled rates generated by the DCD-24.

-4.096%

(25 to 23.976 f/s)

42,294

84,587

169,175

-4.0%

(25 to 24 f/s)

42,336

84,672

169,344

-0.1%

(30 to 29.97 f/s)

44,056

88,112

176,224

BASE RATE

44,100

88,200

176,400

+0.1%

(29.97 to 30 f/s)

44,144

88,288

176,576

+4.166%

(24 to 25 f/s)

45,938

91,875

183,750

+4.2709%

(23.976 to 25 f/s)

45,983

91,967

183,934

-4.096%

(25 to 23.976 f/s)

46,034

92,068

184,136

-4.0%

(25 to 24 f/s)

46,080

92,160

184,320

-0.1%

(30 to 29.97 f/s)

47,952

95,904

191,808

BASE RATE

48,000

96,000

192,000

+0.1%

(29.97 to 30 f/s)

48,048

96,096

192,192

+4.166%

(24 to 25 f/s)

50,000

100,000

200,000

+4.2709%

(23.976 to 25 f/s)

50,050

100,100

200,200

15.3. MULTIPLIER/DIVIDER RATES

Through WC outputs 9-12, the DCD-24 can apply a multiplier or a divider to the 

selected base frequency. Here is a list of the available rates. An ‘X’ indicates this 

choice is not available.

FSx2

FSx4

FS/2

FS/4

192.0 KHz

X

X

96.0KHz

48.0KHz

176.4 KHz

X

X

88.2KHz

44.1KHz

96.0 KHz

192.0KHz

X

48.0KHz

X

88.2 KHz

176.4KHz

X

44.1KHz

X

48.0 KHz

96.0KHz

192.0KHz

X

X

44.1 KHz

88.2KHz

176.4KHz

X

X

32.0 KHz

64.0KHz

128.0KHz

X

X

B. Programming Error 

If an error occurs during the programming step, the 

consequences will depend on the type of update:
- SOFTWARE UPDATE: The Application Software is probably corrupted but the 

Loader is intact and can be used to restore the DCD-24 (see 14.5).
- COMPLETE UPDATE: A Programming error during a ‘complete’ update is most 

likely not recoverable via Ethernet and your DCD-24 will need to be returned to 

the factory for a full restore of its flash memory.

IMPORTANT

:

IF A PROGRAMMING ERROR OCCURED DURING A ‘COMPLETE’ 

UPDATE AND THE UNIT IS STILL ON, TRY RUNNING THE PROGRAM-

MING SEQUENCE AGAIN AS DESCRIBED IN 14.2, WITHOUT CYCLING 

POWER.
IF POWER IS TURNED OFF, THE UNIT WILL MOST LIKELY NEED TO BE 

RETURNED TO THE FACTORY.

14.5 LOADER
The Loader is a fall-back web page that allows you to restore your DCD-24 in case 

of programming failure. This page is located in a different area of the Flash Memo

-

ry (see LOADER SOFTWARE on the Flash Memory map above, 14.2).

To enter the LOADER mode:

Hold down the [

down

] and [

setup

] keys while powering up and until “DCD-24” 

appears on the display (you don’t have to hold down the power key itself -- a single 

hit is sufficient).
The unit will next display “Loader” instead of the usual software version number.  

From Loader mode the IP addresses and DHCP mode can be adjusted in the usual 

way. Then, simply point your browser to the IP address of your DCD-24.
The LOADER page is similar to the regular Upload page described above, without 

active status updates.

To restore your unit, use the BROWSE button to locate the firmware file on your 

hard disk (.upld) and click UPLOAD. The normal programming sequence described 

in 14.3 will follow. Either “software” or “complete” files can be uploaded this way.

Summary of Contents for DCD-24

Page 1: ...rm Electronics Inc Brainstorm Electronics reserves the right to change or modify the contents of this manual at any time Credits Concept AID Brainstorm Electronics Software Gerry Lester Manual Bernard...

Page 2: ...ted 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 75 termination If multiple devices are connected to a single DCD 24 WC output only t...

Page 3: ...standard Ethernet cat5 cable with RJ45 plugs 3 3 UNIVERSAL REFERENCE INPUT TERMINATION SWITCH Input accepts WC AES AES 3id unbalanced 10MHz and HD and SD video sync see Appendix 1 for a list of suppo...

Page 4: ...or GEN 48 048K REF 48K Ethernet The DCD 24 is connected to a network via the Ethernet port WARNINGS Ref Error When an error occurs with the reference signal this LED flashes To clear press any key Ref...

Page 5: ...lumns to the RATE column skipping the EXTERNAL REFERENCE menu we are on INTERNAL and the OUTPUT RATE MODE FOLLOW INPUT is not available with internal reference 8 Menus Description 8 1 REFERENCE Choice...

Page 6: ...licking this takes you to a separate specialized page See chapter 14 9 Non Volatile Storage The DCD 24 has non volatile memory holding all the DCD 24 settings such as rate and reference selection This...

Page 7: ...re available complete and software The DCD 24 FLASH memory is divided in several sections for the parameters settings the application software the Loader software and the FPGA image The diagram below...

Page 8: ...KHz 88 2KHz 176 4KHz X X 32 0 KHz 64 0KHz 128 0KHz X X B Programming Error If an error occurs during the programming step the consequences will depend on the type of update SOFTWARE UPDATE The Applica...

Page 9: ...ll occur between the input video refer ence point vertical sync and the output wordclock rising edge Video Input Types and Rates PAL Slow PAL 24 NTSC Slow PAL 23 976 HD 30 HD 60 HD 25 HD 50 HD 24 HD 2...

Page 10: ...NC www brainstormtime com Distributed Exclusively by plus24 8974 Kramerwood Place Los Angeles CA 90034 USA Tel 323 845 1171 Fax 323 845 1170 www plus24 net DCD 24 Word Clock Distributor Operation Manu...

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