Elpro VideoLabs: equipaggiamento Audio-Video. Il miglior Scaler, Extender, Convertitore per professionisti e dilettanti

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DH1700 is an HD-SDI digital video signal Distributor with cable loss automatic compensation and reclocking on the outputs.

It is composed of 1 input and 6 outputs, and it is compatible with the HD-SDI format.

Toward the plug-in center is located a 12 contacts connector on which a DOP107 optional board may be engaged.

The DOP107 optional board, to be used only when it’s present in the input is a 270 Mbit/sec SD-SDI signal, executes the conversion of the input signal to a phase correlated PAL signal on the output.

The DH1700 mounts in its inside an original “watching net” which monitors all the most important nodes in the circuitry and fires the ALARM leds in case of anomaly.

Technical Specifications

Technical Specifications DH1700
Input type AC coupled
Standards Reclocking mode:
SMPTE 259 M A, C (143 Mbps, 270 Mbps)
SMPTE 292 M (1483 Mbps, 1485 Mbps)
DVB-ASI at 270 Mbps
Reclocking bypass:
SMPTE 259 M B, D (177 Mbps, 360 Mbps)
SMPTE 344 M (540 Mbps)
Input ret. loss >20 dB at 270 Mhz,
>25 dB at 500 MHz
>15 dB at 1.5 GHz
Outputs ret loss >11 dB at 270 Mhz,
>13 dB at 500 MHz
>15 dB at 1.5 GHz
Outputs amplitude 800 mVpp
Outputs rise/fall time
< 0.25 UI at 1485 Mbps (100 KHz Alignment jitter)
Automatic equalization with SDI check field at 270 Mbps
(Test with SPG422 and WVR7100 Tektronix):
220 m RG59DS RAI old type – grey
290 m Intercond dig, – class.
RAI 04.2.20454 – violet
with SDI check field at 1485 Mbps:
(Test with TG700 and WVR7100 Tekt.):
>200 m RG11DS RAI type – green
150 m Seis RAI type HDTV – yellow
120 m Intercond dig, – class.
RAI 04.2.20454 – violet
90 m RG59 DS RAI old type – grey
DOP107 PAL out ret. Loss 21 dB at 5 MHz
Mains input +40 VDC MAX.
Power consumption 5 VA
Size (WxDxH) 350x124x24 mm
Weight 0.3 Kg
CE Mark

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  • Automatic recognization of serial data rate from 143 Mpbs to 1485 Mbps
  • Automatic slew rate of the output signal based on the kind of signal (SD or HD)
  • Reclocking function for signals at 143 Mpbs, 270 Mbps, 1483 Mbps and 1485 Mbps
  • Reclocking mode bypass for signals at 177 Mbps, 360 Mbps and 540 Mbps
  • Reclocking / bypass mode automatic selection according to input signal
  • Return loss accurate control on the input and output
  • PAL output optional board in case of SD-SDI input signals

Brochure / leaflet for DH1700:


User Manual for Elpro Broadcast DH1700 (Italian)

High Resolution Images

Download here the available Hi-Res images of DH1700.


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