Reference Information
This section discusses the specifications, part numbers, and accessories for the
VNC 325 codec. Topics that are covered include:
• Specifications
• Part Numbers and Accessories
• Mounting the Codec
• Test Pattern

Specifications

Video

Signal type ..................................... SDI, HD-SDI, 3G-SDI digital video
Resolution ...................................... 8 or 10 bits, automatic
Data rates ...................................... 270 Mbps, 1.485 Gbps, 2.970 Gbps.
Operation standards ....................... SMPTE 259M, SMPTE 296M, SMPTE 424M
Auto data rate lock ........................ Yes

Video input and loop through — encoder

Number/signal type ........................ 1 digital component video with loop through
10 bit, 4:2:2, with auto-detection
Connectors .................................... 3 female BNC: 1 for input, 2 for loop through (1 with messaging overlay option)
Nominal level ................................. 0.8 Vp-p
Impedance ..................................... 75 ohms
Data rates ...................................... 1.5 Gbps to 3.0 Gbps
Vertical frequency ........................... 23.97 Hz to 60 Hz, depending on signal format
Resolution range ............................ 525i, 625i, 720p, 1080i, 1080p, 1080psf

Video processing — codec

Compression .................................. PURE3® Codec
Frame rate delay ............................. 35 ms (70 ms encoding/decoding end-to-end)
Bit rate ........................................... 6 Mbps to 250 Mbps
Bit and frame rate control .............. Selectable
Frame rate ...................................... Up to 60 fps @ 1080p

Video output — decoder

Number/signal type ........................ 1 digital component video
10 bit, 4:2:2, with auto-detection
NOTE: Output signal format follows the input format at the encoder.
Connectors .................................... 1 female BNC
Nominal level ................................. 0.8 Vp-p
Impedance ..................................... 75 ohms
Vertical frequency ........................... 23.97 Hz to 60 Hz, depending on signal format
VN-Matrix 325 Serial Digital Over IP CODEC • Reference Information 66