 |
Flexible dual-channel,
high-rate STM-64/16/4/1 add/drop multiplexer (ADM) in
a 3.5-inch chassis |
|
Demutliplexes from
four (4) to sixteen (16) independent SDH/PDH signal streams
(SDH rates up to STM-64) |
|
Demultiplexing to
E1 via the SDH C-12 and C-4 container levels |
|
User-selectable remapping
of E1s prior to multiplexing to STM-1 via the SDH C-12
container |
|
User-selectable cross-connect
of STM-1c(s) prior to multiplexing to STM-N |
|
Future C2C stream
extraction capability for output over Gigabit Ethernet
outputs |
|
Signal processing
chain includes O/E-E/0, SDH descrambling, demultiplexing,
and multiplexing functions |
|
Onboard snapshot capability
of all inputs and at selected SDH container payload stages |
|
 |
|
Field upgrade of demultiplexing
capabilities via user-downloadable FPGAs |
|
100 Base-T
Ethernet control interface and graphical control
screens |
|
Front panel
status displays |
|
Each Model
557A is factory configured with four input/outputs
modules. There are two types of modules to choose
from:
 |
Single
STM-64 input/output |
|
Quad STM-16/4/1
input/output |
|
|
Secondary
electrical inputs/outputs
|
Eight
Gigabit Ethernet, RJ-45 outputs (future
capability) |
|
|
|
