A-8
October, 1998
GRF 400/1600 Getting Started - 1.4 Update 2
GRF Specifications
Media card specifications
ATM OC-3c specifications
The ATM OC-3c media card has the following characteristics:
Table A-8. ATM OC-3c media card specifications
Element
Value
Interfaces per card
Two bi-directional interfaces
- single mode card
- multimode card
Media transfer rate
155 Mbps
Processors
40-MHz transmit processor, 40-MHz receive processor
Data buffers
4 MB on receive side, 4 MB on transmit side
Route table support
150K entries, with hardware-assisted route table lookup
SDH (STM-1)
Complies with Synchronous Digital Hierarchy standards
Max transmission unit
9180 bytes
Cables
Single-mode cables: 9/125 micron optical fibre
Multi-mode cables: 62.5/125micron optical fibre
Connectors
Duplex SC transceivers
Connector requirements
Must meet JIS C 5973 standards
LASER components
Class 1, 1310 nm LASER diodes
Optical input
Single-mode: 32.5 dBm minimum, 8 dBm maximum
Multi-mode: 32.5 dBm minimum, 14 dBm maximum
Optical output (avg.)
Single-mode: 14 dBm minimum, 8 dBm maximum
Multi-mode: 19 dBm minimum, 14 dBm maximum
Optical wavelength
Single-mode: 1,261 nm min, 1,310 nm typical, 1,360 nm max
Multi-mode: 1,270 nm min, 1,310 nm typical, 1,380 nm max
Spectral width
Single-mode: 7.7 nm maximum
Multi-mode: 120 nm typical, 200 nm maximum