HCO-3901
3G/HD/SD/ASI Change-Over with Clean Switch and ALC

The HCO-3901 is a 3x1 3G/HD/SD/ASI change-over which support 16 channels of embedded audio and metadata. The module can perform a video and audio "Clean and Silent Switch" between sources using the CS option. In the event of a power failure, the PGM signal is protected by relays fitted on the rear module, maintaining the integrity of the selected signal at the output. Relays are fully controllable via GPI. Input selection can be performed automatically or manually. The HCO-3901 provides up to eight 3G/HD/SD SDI video outputs (depending on the rear panel in use).

  • Two primary inputs: IN 1 and IN 2 plus one secondary: IN 3
  • Four outputs: main program and three previews
  • Eight outputs (with EX rear): paired outputs for main program and each of the three previews (single outputs only for ASI)
  • Supports 3G, HD (1080i50/59.94, 720p50/59.94) and SD (525, 625) or ASI input and output
  • Electronic switching with relay backup (on rear module) maintains selected input with power loss for Primary inputs IN 1 and IN 2
  • Automatic mode using internal signal analysis with alarm parameters for IN 1 and IN 2
  • Manual change-over by local frame controller, iControl, iControl Solo or GPI (3DRP rear) for 3 inputs
  • Alarm reporting to iControl facility monitoring and control system
  • Compatible with iControl end-to-end A/V fingerprint analyzer for lip sync error detection and measurement (not available with ASI signals)
  • GPI in and out (IN 1, IN 2, IN 3, auto, bypass)
  • Optional clean switch function (video and 16 channels of audio) for IN 1 and IN 2 (not available with ASI signals)
  • Optional on-board automatic loudness control by Grass Valley (not available with ASI signals)
  • Reference input with passive loop through (3DRP rear only)
  • Two line timing window with CS option (not available with ASI signals)
  • Thumbnail and audio level meter streaming for IN 1, IN 2 and PGM OUT (not available with ASI signals)
  • Loudness compliant to EBU R128-2014, ATSC A/85:2013 (FCC CALM compliant) and ARIB TR-B32 (ITU-R BS.1770-3)
VIDEO INPUTS (3)
  • Signal:  
    • SD: SMPTE ST 259-C (270 Mb/s)
    • HD: SMPTE ST 292 (1.485, 1.485/1.001 Gb/s)
    • 3G: SMPTE ST 425 (2.970, 2.970/1.001 Gb/s)
    • DVB-ASI: EN 50083-9
  • Supported formats:
    • SD: SMPTE ST 125: 480i59.94
    • SD: EBU: 576i50
    • HD: SMPTE ST 274: 1080i59.94, 1080i50
    • HD: SMPTE ST 296: 720p59.94, 720p50
    • 3G: SMPTE ST 425 level A (mapping 1): 1080p59.94, 1080p50
  • Cable length1
    • 350m (1,148 ft.) Belden 8281 at 270 Mb/s
    • 130m (426 ft.) Belden 1694A at 1.485 Gb/s
    • 90m (295 ft.) Belden 1694A at 2.970 Gb/s
  • Return loss:
    • >10 dB up to 1.5 GHz (IN 1, IN 2)2
    • >8 dB up to 3 GHz (IN 1, IN 2)2
    • >15 dB up to 1.5 GHz (IN 3)
    • >10 dB up to 3 GHz (IN 3)
VIDEO OUTPUT (4-8)
  • Signal:
    • SMPTE ST 259-C (270 Mb/s)
    • SMPTE ST 292 (1.485, 1.485/1.001 Gb/s)
    • 3G: SMPTE ST 425 (2.970, 2.970/1.001 Gb/s)
    • DVB-ASI: EN 50083-9
  • Supported formats:
    • SD: 480i59.94, 576i50
    • HD: SMPTE ST 274: 1080i59.94, 1080i50
    • HD: SMPTE ST 296: 720p59.94, 720p50
    • 3G: SMPTE ST 425 level A (mapping 1): 1080p59.94, 1080p50
  • Return loss3:
    • >15 dB up to 270 MHz (PGM out)
    • >12 dB up to 1.5 GHz (PGM out)
    • >7 dB up to 3 GHz (PGM out)
    • >15 dB up to 270 MHz (PVW out)
    • >15 dB up to 1.5 GHz (PVW out)
    • >10 dB up to 3 GHz (PVW out)
  • Jitter:
    • SD/HD <0.2 UI (alignment jitter)
    • 3G <0.3 UI (alignment jitter)
REFERENCE INPUT (1)
  • Signal:
    • SMPTE ST 170/SMPTE ST 318/ITU 624-4/BUT 470-6 or composite sync
    • SMPTE ST 274/SMPTE ST 296 tri-level sync
  • Return loss: >35 dB up to 5.75 MHz
GPI (10)
  • Connector: HD-15, opto-isolated, common ground
  • GPI IN (5): Contact closure to ground
  • GPI OUT (5): Contact closure to ground
  • External pull up Voltage: 3.3V to 24V max
  • External GPI power: 5V nominal
VIDEO PROCESSING PERFORMANCE
  • Signal path: 10 bits
  • Latency: 0.4 ns without CS option and ALC option
  • Maximum of 2 lines with CS or ALC option
AUDIO PROCESSING PERFORMANCE
  • Quantization: 20-24 bits
  • Sampling: 48 kHz, synchronous
  • Number of channels: 16, 4 groups
  • Audio latency:
    • 0.4 ns without CS option and without ALC option
    • Add 1 ms if CS option is enabled
    • Add 1 ms if ALC option is enabled
ELECTRICAL
  • Power: 10W

 

  • Note 1: Cable length and return loss specifications will be reduced when using the output protected by the bypass relay, refer to the manual for more details.
  • Note 2: Input protected by relay.
  • Note 3: PGM output protected by relay.
Densité 3 frame Description
HCO-3901 3G/HD/SD change-over with optional clean switch and ALC
HCO-3901-3SRP-R Single rear connector with bypass relay
HCO-3901-3DRP-R Double rear connector panel with bypass relay
HCO-3901-3DRP-R-EX Double rear connector panel with bypass relays and paired outputs
 
Options (software) Description  (Note that all of the following options are not functional with ASI signals)
HCO-3901-OPT-CS Clean switch option
HCO-3901-OPT-ALC-2 2-channel on-board ALC option
HCO-3901-OPT-ALC-6 6-channel on-board ALC option
HCO-3901-OPT-ALC-8 8-channel on-board ALC option
HCO-3901-OPT-ALC-16 16-channel on-board ALC option
 
Options (hardware) Description
NSH15M HD-15 to terminal block adapter

HCO-3901: 3G/HD/SD/ASI Change-Over with Clean Switch and ALC Datasheet

The HCO-3901 from Grass Valley, a Belden Brand, is a 3x1 3G/HD/SD/ASI change-over which support 16 channels of embedded audio and metadata. The module can perform a video and audio "Clean and Silent Switch" between sources using the CS option (not available with ASI signals). In the event of a power failure, the PGM signal is protected by relays fitted on the rear module, maintaining the integrity of the selected signal at the output. Relays are fully controllable via GPI. With the addition of the HCO-3901-3DRP-R-EX rear panel, the HCO now supports paired outputs for 3G/HD/SD SDI (single outputs only for ASI).

Posted Oct 31 2016 (GVB-1-0384H-EN-DS) File Size: 813.4 KB

Read more »

See more related documents
Sales: USA +1 530 265 1000 / Canada +1 514 333 1772 / LATAM +1 305 213 8503 / EMEA +44 (0)118 952 3400 / Asia +852 2955 3260 / Customer Support
Copyright © 2017 Grass Valley Canada. All rights reserved. Legal Terms Privacy Careers About Us Contact Press View All Products