The ILC274 utilizes Time Division Multiplexing (TDM) to combine four independent 270Mb/s video signals into one optical channel.

The ILC274M and ILC274D provide a space efficient and cost-effective method of transporting up to four 270Mb/s digital video services over a single optical wavelength.  Services can be any combination of 270Mb/s video signals including SDI, SDTI, and DVB-ASI. Optical regeneration or repeating is accomplished using the ILC274D which includes drop and continue capabilities, ILC103AILC300, or any other system capable of repeating a 1.485Gb/s signal. Using 1310nm, 1550nm, CWDM, or DWDM Small Form-Factor Pluggable (SFP) optics the ILC274 enables transport of up to 160 270Mb/s circuits over a single fiber.


Operating temperature
0 to 50°C
Ambient storage temperature
-40 to 80°C
Relative humidity
10 to 95% (non-condensing)
Power dissipation
<7 Watts


0.8” x 5” x 10.8”  (1 slot in InfinityLink chassis)

Optical Interface

Electrical Interface

270Mb/s signal formats
– SD-SDI (SMPTE 259M-C, ITU 656)
– Others 270Mb/s services (+100 ppm)
Signal polarity
Non Inverting
Input (4) BNC 75 Ohm (ILC274M)
Output (4) BNC 75 Ohm (ILC274D)
Monitor mini 75 Ohm SMB
Return loss
>15 dB, 5-270 MHz

Regulatory Conformance

CSA 60950, EN60950, EN55022, FCC Part 15 (Class A), CISPR 22

Single slot card set

Transport four 270Mb/s video circuits on a single optical wavelength

  • Support any combination of:
    • SD-SDI (SMPTE 259M-C, ITU 656)
    • SDTI (SMPTE 305M)
    • DVB-ASI
    • Other 270Mb/s services
  • Use with ILC170 for composite analog transport
  • Full reclocking removes jitter from SDI

Industry-standard 1.485Mb/s output

Space efficient

  • Utilizes one slot in the InfinityLink chassis 
  • Transports up to 16 video circuits per rack unit

Externally accessible SFP transceiver optics

  • Optical budget to 33dB
  • WDM (1310nm, 1550nm)
  • CWDM ITU G.694.2 (Channels 27-61)
  • DWDM ITU G.694.1 (Channels 21-60)

Multiple monitoring options

  • Switch sellectable front panel monitor of individual channels (mini 75 Ohm SMB)
  • Front and rear panel status LEDs
    • Loss of video (individual channels)
    • Loss of optical input
    • Laser (SFP) fail

Remote management via InfinityLink Manager

  • No external software required
  • HTTP or SNMPv2
  • Monitor, Configure, Upgrade firmware

Quick Start Guide
Quick Start Guide