DT4230N
Digital Transceiver with Dual RF Inputs
for NC4000 Fiber Node Platforms
(5-50 MHz pass band) |
Aurora Networks’ DT4230N Digital Transceiver is a component of Aurora's
Integrated Digital Transport System that digitizes two discrete legacy 5–50 MHz RF return
path signals from separate inputs. The module's optical transmit/receive ports are
implemented with optional plug-in transceivers for ultimate flexibility and affordability.
Conforming to the Small Form Factor Pluggable (SFP) Multisource Agreement, these state-of-the-art
transceivers are available in a variety of transmit/receive wavelengths, including dedicated
1310nm (for 10 and 40 km links), 1550nm (for links up to 40 km), and CWDM ITU grid (for links
up to 40 km), all operating at data rates of 2.125 Gbps. Longer spans are supported by using
Aurora’s DX4515 Digital Transponder.
These dual channel/dual segment (or ''2-fer'') digital return transceivers allow
twice the amount of information to be transmitted over the same fiber cable. Ideally suited
for use in hybrid fiber/coax (HFC) and fiber deep architectures, Aurora’s ''2-fer'' digital
return path products (including node-hosted transceivers and headend dual channel receivers)
support cost-effective growth in high-speed data and telephony penetrations by putting twice
as much data onto the same fiber through two discrete return channels of upstream data from
the optical node. Each channel is received independently by a dual channel receiver and routed
through discrete RF return outputs. This operation provides fiber availability for additional
return path bandwidth and rack space for additional return path receivers. Aurora’s digital
return products enable existing optical nodes to be fully segmented, with each RF input port
treated as a discrete network, maximizing the available bandwidth per user, while at the same
time conserving the cable operators’ investment in the fiber network.
The DT4230N is designed as a plug-in module for Aurora Networks’ NC4000 series
Optical Nodes. Aurora Networks supplies DT4230N transceivers either with the NC4000 as a fully
configured and tested node or as modules for existing customers of the NC4000 desiring to
implement digital return and/or upgrade to Ethernet transport capability.
Features
• Dual RF inputs to digitize 5–50 MHz legacy RF return
• Highly flexible, easily configurable support for transmission at 1310nm,
1550nm, or 1 of 10 CWDM wavelengths
• Remote status monitoring and management
• Hot plug in/out
• Single mode optical converter implemented with optional SFP
transceivers
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