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Doremi MB-4K - User Manual

Doremi MB-4K
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MB_4K_Manual_000234_v1_3.doc Page 1 Version 1.3
M4K.OM.000234.DRM Doremi Labs, Inc Confidential
MB-4K
User Manual
Version 1.3
The information contained herein is confidential and may not be divulged
to any person or entity or reproduced, disseminated or disclosed, in
whole or in part. By receipt of this material including any exhibits,
attachments and spreadsheets the recipient agrees that the information
contained herein shall be kept confidential and shall not, without the prior
written consent of Doremi Laboratories, be disclosed by the recipient in
any manner.

Table of Contents

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Overview

  1. Technical Specifications
  2. Video Input Formats Supported
  3. Video Output Formats Generated
  4. Power Requirements
  5. Front Panel
  6. Rear Panel Connections
  7. HD-SDI Output Connectors
  8. HD-SDI Input Connectors
  9. DVI Outputs
  10. Serial Ports
  11. Network
  12. Usage Features
  13. Operating System and User Access
  14. Connecting via Ethernet with SSH
  15. Changing the IP Address
  16. Configurations
  17. Boot Configuration Files
  18. Manual Configuration
  19. Output Modes
  20. 2K All Outputs
  21. 2K Output
  22. 3D/48fps Output
  23. Input Links
  24. MB-4K Macros
  25. Maintenance Features
  26. Updating Firmware and Software
  27. Report Generation

The Doremi MB-4K is a rack-mounted digital cinema server component designed to decompress and transmit 4K composition components from a Doremi DCP-2000 Digital Cinema Server to any 4K projector. It also handles subtitle rendering and overlay, requiring the MB-4K and DCP-2000 to be on the same network, with the DCP-2000 configured to send subtitles to the MB-4K's IP address. The unit's dimensions are 1RU.

Technical Specifications:

Video Input Formats Supported:

  • 2K progressive 4:4:4 12-bit at 24fps on Dual-Link HD-SDI
  • 2K progressive 4:2:2 10-bit at 24fps on HD-SDI link A

Video Output Formats Generated:

  • 2K progressive 4:4:4 12-bit at 24fps Dual-Link HD-SDI
  • 2K progressive 4:2:2 10-bit at 24fps single link HD-SDI on both link A and B.

Power Requirements:

  • 110VAC / 60 Hz or 220VAC / 50Hz

Front Panel:

  • Green Power LED indicating the unit is ON.
  • Power switch for turning the unit On and Off.

Rear Panel Connections:

HD-SDI Output Connectors:

  • 4B: Bottom right, Link B
  • 4A: Bottom right, Link A
  • 3B: Bottom left, Link B
  • 3A: Bottom left, Link A
  • 2B: Top right, Link B
  • 2A: Top right, Link A
  • 1B: Top left, Link B
  • 1A: Top left, Link A

HD-SDI Input Connectors:

  • IN-B: Input, Link B
  • IN-A: Input, Link A

DVI Outputs:

  • DVI 4 Out
  • DVI 3 Out
  • DVI 2 Out
  • DVI 1 Out

Serial Ports:

  • RS 232 Serial Port: Connects to the host. Settings: 38400 bauds, 8 data bits, no parity, 1 stop bit, no flow control. Requires a Null Modem serial cable for PC connection.
  • RS 422 Debug Port: Used for debug messages. Settings: 115200 bauds, 8 data bits, odd parity, 1 stop bit, no flow control. Requires an RS232 to RS422 serial cable (Doremi V1 to PC cable).

Network:

  • Ethernet port for SSH connection and FTP.

Usage Features:

Operating System and User Access:

The MB-4K Cine runs on a Linux-based operating system with predefined users:

  • root user
  • admin user (password: 1234)
  • manager user (password: password)
  • doremi user (password: doremi)

Connecting via Ethernet with SSH:

  • Connect as the admin user using ssh -l admin <IP_ADDRESS>.
  • The default IP address is 10.10.1.26.

Changing the IP Address:

  • Connect as admin via SSH or RS232 serial port (using an application like HyperTerminal).
  • Execute /doremi/sbin/adminconf.out to launch a GUI-like application for setting the IP address.

Configurations:

Boot Configuration Files:

  • Configuration files in /doremi/etc/beluga are text files that set the unit's configuration during boot. Changes take effect after a reboot.
  • To change or create a configuration file, connect via SSH or RS232 and run beluga_conf with the file name and value: /doremi/bin/beluga_conf configuration_file_name value.
  • Configuration file names are case sensitive.
  • This method is used since software version 0.1.2-8.

Manual Configuration:

  • Configurations can be set manually at any time and take effect immediately, but are lost after a reboot.
  • Most output configurations are set by manipulating bits in register 0x00.
  • To change a setting, connect via SSH or RS232 and run /doremi/sbin/beluga_app.
  • Example: Read register 0x00 (r 00), modify a bit (e.g., change bit 3 (0x08) from 0 to 1 by writing w 00 18), then read again to confirm.

Output Modes:

2K All Outputs:

  • Default: 4K image (4096x2160) split into four 2K (2048x1080) quadrants on outputs 1, 2, 3, and 4.
  • If a 2K video is input, it is up-scaled to 4K.
  • Can be configured to output only the 2K image on all outputs.
  • Configuration file: 2K_allOutput in /doremi/etc/beluga.
    • 0: for 4K output
    • 1: for 2K output on output 1 only.
  • Manual configuration bit: bit 2 (0x04) in register 0x00 (0 for 4K, 1 for 2K).

2K Output:

  • Default: 4K image (4096x2160) split into four 2K (2048x1080) quadrants.
  • Can be configured to output only the 2K image on output 1, discarding other outputs.
  • Configuration file: 2K_output in /doremi/etc/beluga.
  • Manual configuration bit: bit 3 (0x08) in register 0x00 (0 for 4K, 1 for 2K).

3D/48fps Output:

  • The MB-4K outputs a 24fps signal.
  • Automatically enters 3D/48fps mode when receiving a single link 4:2:2 10-bit YCxCz video on input A. Only input A is considered in this mode.
  • Output modes (firmware MB 0.01k and later):
    • Default: 4:2:2 10-bit YCxCz single link output at 24fps on each output A (copied to output B).
    • 4:4:4 12-bit XYZ dual link at 24fps on output A and B combined.
  • Configuration file: 3D_444_output in /doremi/etc/beluga.
    • 0: 3D 4:2:2 10-bit YCxCz outputs
    • 1: 3D 4:4:4 12-bit XYZ outputs
  • Manual configuration bit: bit 4 (0x10) of register 0x00 (1 for 4:4:4 XYZ, 0 for 4:2:2 YCxCz).
  • Note 1: Until firmware MB 0.01j (included), only 4:4:4 12-bit XYZ output mode was supported.
  • Note 2: In 2D (24fps) mode, output is always 4:4:4 12-bit XYZ dual link.
  • Note 3: To support 4K 3D or 4K 48fps output, two MB-4K units are required in parallel.
  • Starting with firmware MB 0.01k, the MB-4K auto-detects which input (A or B) is the main link (link A) of the Dual Link HD-SDI input and which is the second link (link B).
  • When receiving 3D/48fps single link 4:2:2 10-bit YCxCz video, only input A is considered.
  • This allows using the same connections for both 2D (24fps) and 3D (48fps) configurations when using two MB-4K units for 3D (48fps) playback.
  • Note: On versions up to MB 0.1j included, the main link (link A) is always input A.

MB-4K Macros:

The unit can be configured from a DCP-2000 by sending Macros during a ShowPlayList, similar to manual configuration.

  • SET_MB_ALL2K: Sets the "2K All Outputs" mode.
  • SET_MB_4K: Resets "2K All Outputs" and "2K Output" modes to 4K output.
  • SET_MB_2K: Sets the "2K Output" mode.
  • SET_3D_444: Sets the 3D 4:4:4 12-bit output mode.
  • SET_3D_422: Sets the 3D 4:2:2 10-bit output mode.
  • SET_OFFSET : Sets horizontal (x) and vertical (y) offsets for generated subtitles. This is useful in 3D setups to adjust subtitle depth.

Maintenance Features:

Updating Firmware and Software:

  • Copy the update package via FTP to the /doremi/etc/rc.once folder using the admin user (default FTP directory is /doremi).
  • Reboot the unit (via SSH or RS232 serial port). The unit will update during reboot.
  • Note 1: Initial firmware (until MB 0.01i) requires a video signal to be fed to the HD-SDI Input for updates to work. Ensure video from the DCP-2000 is fed during an update.
  • Note 2: Only perform one update at a time. If both firmware and software need updating, do one, wait for reboot, then do the second. Performing both at once may lead to improper software updates.
  • Note 3 (Downgrading): Firmware can be downgraded. Software downgrading is only safely supported within the same version branch (e.g., 0.1.1-x to another 0.1.1-x). Downgrading across different branches (e.g., 0.1.1-x to 0.1.0-x) is not supported and may cause unexpected results.

Report Generation:

  • The unit generates log files. In case of an issue, a report can be generated containing log files and current unit state information for technical support.
  • To generate a report, connect as admin via SSH or RS232 and execute /doremi/sbin/report.sh.
  • This creates a file named drmreport_yyyy-mm-dd.tgz in /doremi/tmp (e.g., drmreport_2007-08-16.tgz).
  • Send this file to technical support when contacting them.

Doremi MB-4K Specifications

General IconGeneral
BrandDoremi
ModelMB-4K
CategoryComputer Hardware
LanguageEnglish