Environmental
Cooling Requirements
Air intake/exhaust locations:

• 8 RU chassis: The Maestro 8 RU chassis ventilation system draws cooling air through openings on the left side. Warm air is exhausted through four fans located on the right side. The left and right sides must therefore be kept clear of obstructions. It is not necessary to leave open space above or below the chassis
  Note: Heat-generating equipment must not be mounted beneath the Maestro chassis
• 4 RU chassis: Air intake is on the left, exhaust on the right

Electrical
Unless specified otherwise, the following specifications apply to a single channel (i.e., one video plus associated audio channels)

Power
8 RU Maestro/Concerto chassis: Power supply – 100-240V, 50/60 Hz, 10-15A, auto-sensing
4 RU Maestro/Concerto chassis: Power supply – 100-240V, 50/60 Hz, auto-sensing
Touchscreen (GUI) PC: Antec SP-450 power supply – 115V, 9A/230V, 5A (manual voltage adjustment required). 50/60 Hz
Touchscreen (GUI) monitor: 100-240V, 0.7-0.35A, 50/60 Hz, auto-sensing

Video Standards
Interlaced scan:
1080i, 60 Hz, 16x9 HD (ATSC): SMPTE 274M-2005, ATSC Table 3 @ 1.5 Gb/s
1080i, 50 Hz, 16x9 HD SMPTE: 274M-2005 @ 1.5 Gb/s
575i, 50 Hz, 4x3 SD (PAL): BT.601-4 (normal 625/50 @ 270 Mb/s)
480i, 60 Hz, 4x3 SD (NTSC): SMPTE 125M, SMPTE 259M, ATSC Table 3, (normal 525/60 @ 270 Mb/s)
Progressive scan:
720p, 60 Hz, 16x9 HD (ATSC): SMPTE 296M-2001, ATSC Table 3 @ 1.5 Gb/s
720p, 50 Hz, 16x9 HD: SMPTE 296M-2001

Video Reference
SD operation: Analog blackburst (preferred). Must be compatible with input video standard (as listed above). Although any constant APL color test signal may be used for SD sync, the preferred reference signal is analog blackburst
HD operation: HD tri-level sync (preferred). Must be compatible with input video standard (as listed above)
Connector: One – 75Ω BNC, looping

Video Inputs
Number and type:

• 2 primary (background A/B)
• 1 DVE reveal (background C)
• 1 video for embedded breakaways or mix-overs (background D)
• 4 key cut
• 4 key fill

Connector: 75Ω BNC
Return loss: > 15 dB 270 Mb/s

Video Outputs
Number and type:

• 2 program
• 2 preview
• 2 clean feed (configurable tap points)

Keyers
Key signal inputs: 4, each with cut and fill. Keys can be inserted "upstream" (paired with the background video) or "downstream" (can persist even when background video is changed)

Video Delay
With DVE option: 1 frame plus 1 line
Without DVE option: 1 frame plus 1 line

Audio Specifications
Audio standard: AES-1992 (r1997) 1999-11-23 printing
Rear panel types: 75Ω (BNC connectors) or 110Ω (25-pin D connectors)
Dolby E: Pass-through (for NTSC, Dolby E is switched on line 10)
Audio inputs: signal type 48 kHz AES3

Internal Channel Branding Option
Still images: 4 still image or CG text sources
Maximum still image size:

• Full-screen in all Maestro video standards. Supports alpha channel
• CG Text supports 8 image or text boxes including dynamic still images and text. Each CG Text source may reference 16 still images and 4 character generator fonts. Text data is defined in ASCII text files
• Maximum CG Text display page size: Approximately 4,000 characters. Number of displayed text lines defined during configuration

Supported still image file formats: .TIF, .BMP, .JPG, .PNG, and .WMF
Animations: 2 animation sequences or text crawl sources. Length of animation sequence is determined by the area of the element being animated
Supported animation sequence file formats: .GIF and .MNG
Text crawl: Template-based display including multiple fonts, character color and transparency, and background with color and transparency
Maximum text crawl length:

• Approximately 4,000 characters
• Text crawls support still images and an animation embedded in the text crawl. Each text crawl source may reference 16 still images and a single animation sequence. Text crawl data is defined in ASCII text files

Text formatting control: Insert day/month/year, select font, font color, drop shadow on/off, drop shadow color, drop shadow size, insert still image, insert animation, underline on/off, underline color, and underline offset
Audio voiceovers: 4 audio voiceover sources
Number of audio channels: Up to 16 channels sampled at 48 kHz with 16 bits per sample
Supported audio file formats: .WAV and Broadcast .WAV