Alcatel 1660SM Technical Handbook page 185

Up to 4 client signals can be independently handled among the following types (for details and
restriction refer to paragraph 3.10 on page 293) :
•
Fast Ethernet
•
FDDI (125Mbps)
•
ESCON (200Mbps)
•
Digital Video (270Mbps)
•
Fiber Channel (1.0625Gbps)
•
FICON (1.0625Gbps)
•
Gigabit Ethernet (1.25Gbps)
•
SERVICE unit
The unit provides the following functionality:
– Auxiliary channels
– Engineering Order Wire (EOW)
– 2 MHz Input/Output
•
CONGI unit
The unit provides the following functionality:
– Power Supply
– QB3 Interface
– Housekeeping and remote alarm
– Q2/RQ2 interface
•
Access Cards
They provides the physical interface for the different types of signals
•
Protection Card
The unit allows the EPS protection for 34/45Mbit/s and 155 Mbit/s electrical unit.
•
BOOSTER
To improve the span length of STM–N interfaces for single channel application, the Optical
booster unit can be used. This unit can be plug–in in the access area. Three integrated boosters
are available, according to the relevant gain values: 10dbm, 15dBm and 17dBm.
•
OPTICAL PREAMPLIFIER
This unit can be plug–in in the access area. It is used in conjunction with the optical booster to
improve the span length of STM–16 interfaces for single channel application.
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