270Mb/s Digital Video 4-to-1 TDM Multiplexer with
Optical Transmitter/Receiver/Repeater [DLC274]
Simplifying Video Transport
DigiLink Video Transport System
FEATURES
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 DLC170 for composite analog
transport
• Full reclocking removes jitter from SDI
Industry-standard 1.485Mb/s output
Space efficient
• Utilizes one slot in the DigiLink chassis
• Transports up to 16 video circuits
per rack unit
The DLC274 utilizes Time Division Multiplexing (TDM) to combine four
independent 270Mb/s video signals into one optical channel.
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)
The DLC274M and DLC274D 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 DLC274D which
includes drop and continue capabilities, DLC103, DLC300, or any other system capable
of repeating a 1.485Gb/s signal. Using industry standard 1310nm, 1550nm, CWDM, or
DWDM Small Form-Factor Pluggable (SFP) optics the DLC274 enables
transport of up to 160 270Mb/s circuits over a single fiber.
Multiple monitoring options
• Switch selectable front panel monitor
of individual channels (mini 75ohm SMB)
• Front and rear panel status LEDs
• Loss of video (individual channels)
• Loss of optical input
• Laser (SFP) fail
Remote management via DigiLink Manager
• No external software required
• HTTP or SNMPv2
• Monitor
• Configure
• Upgrade firmware
DLC274D 4 Channel 270Mb/s Digital Video DeMultiplexer and Repeater
BNC A
BNC B
DLC274M 4 Channel 270Mb/s Digital Video Multiplexer
BNC C
BNC D
BNC A
Internal
BNC B
Internal
BNC C
Internal
BNC D
Input
Select
DLC274M
Input
Select
Input
Select
TDM
De-Mux
Internal B
Internal C
Internal D
SFP
TDM
Mux
1.485G
Internal
Monitor
Select
Front Mini-SMB
Repeater
Input
Select
Monitor
Select
22
Internal A
SFP
Front Mini-SMB