Cisco Prisma IP DS3 TDM Line Card Pkt Trans for Legacy Private Line Services Data Sheet
Description
Rapid growth in the fiber optics transport industry has created
a situation where the demand for optical fiber bandwidth is
growing faster than new fiber can be installed. One way to
respond to this increased demand is to use wavelength
division multiplexing (WDM) to enable multiple optical layer
signals to share one physical fiber. Two popular formats are
to incorporate CWDM (coarse wavelength division
multiplexing) or DWDM (dense wavelength division
multiplexing) technologies to greatly increase the data carrying
capacity of a single optical fiber.
The Prisma IP
a situation where the demand for optical fiber bandwidth is
growing faster than new fiber can be installed. One way to
respond to this increased demand is to use wavelength
division multiplexing (WDM) to enable multiple optical layer
signals to share one physical fiber. Two popular formats are
to incorporate CWDM (coarse wavelength division
multiplexing) or DWDM (dense wavelength division
multiplexing) technologies to greatly increase the data carrying
capacity of a single optical fiber.
The Prisma IP
™
Resilient Packet Transport (RPT) Ring I/O
card is the main optical transceiver interface between the
Prisma IP chassis and the optical transport network. Each
RPT Ring I/O card contains a laser for transmitting the packet
data to an adjacent node and an optical receiver
(photodetector) for receiving the packet data from the adjacent
node. Two of these Ring I/O cards are required in each
Prisma IP M-Series or C-Series chassis for the implementation of a RPT Ring.
The Prisma IP RPT Ring I/O cards are available with wavelength-selected lasers and high-sensitivity optical
receivers specifically designed for CWDM or DWDM applications. The CWDM RPT Ring I/O card will permit the
carriage of 8 wavelengths per fiber, and the DWDM RPT I/O card will permit the carriage of 48 wavelengths per
fiber, increasing the available bandwidth from 2.5 Gbps to as much as 120 Gbps per fiber.
Prisma IP chassis and the optical transport network. Each
RPT Ring I/O card contains a laser for transmitting the packet
data to an adjacent node and an optical receiver
(photodetector) for receiving the packet data from the adjacent
node. Two of these Ring I/O cards are required in each
Prisma IP M-Series or C-Series chassis for the implementation of a RPT Ring.
The Prisma IP RPT Ring I/O cards are available with wavelength-selected lasers and high-sensitivity optical
receivers specifically designed for CWDM or DWDM applications. The CWDM RPT Ring I/O card will permit the
carriage of 8 wavelengths per fiber, and the DWDM RPT I/O card will permit the carriage of 48 wavelengths per
fiber, increasing the available bandwidth from 2.5 Gbps to as much as 120 Gbps per fiber.
Features
• CWDM versions utilize inexpensive uncooled lasers and optical multiplexing devices
• DWDM versions compatible with ITU 100 GHz DWDM channel spacing
• Port Status LEDs to monitor laser performance and optical receive performance
• Laser maximum dispersion limits of 80 km, 100 km, or 170 km
Applications
• CWDM versions are for cost-effective, multi-wavelength metro applications (<80 km)
• DWDM versions are for high-density wavelength division multiplexing (24-48 per fiber)
• DWDM versions are also useful for traversing very long distances between nodes (100-170 km)
CWDM
RPT I/O
Card
ITU DWDM
RPT I/O
Card
Prisma IP
™
Wavelength-Selected RPT Ring Interface Cards for ITU
DWDM and CWDM Optical Networks
Digital Transport