Alcatel 1660SM Technical Handbook page 250

1 ) ISA–PR Port card
The ISA–PR Port Card supports up to four STM–4 interfaces and it works in conjunction with one or
two Access cards plugged into the correspondent access slots, as depicted in next Figure 124. and
Figure 125. Each ISA–PR port card requires two chassis slots.
The ISA–PR may be plugged into any PORT slot in the 1660SM, apart from the slots dedicated to
Controller and Switch cards. Multiple ISA–PR sub–systems may be installed in a single 1660SM
system.
The STM–4 pluggable module, which can be plugged, independently into each port on the ISA–PR
PORT card and provides a range of options for the physical interfaces; they are named Small
Formfactor Pluggable (SFP) Transceivers and they can be considered as independent items
hardware, in fact they have an own Remote Inventory.
At the moment the type of Small Form–Factor Pluggable Transceivers provided is:
STM–4 Short Haul optical interface (approx 2kms) – SS–4.1
2 ) 16FEA–PR Access card: Sixteen (16) 10/100 Fast Ethernet interfaces are supported.
The 16FEA–PR board supports sixteen 10/100 TX (copper RJ45) Ethernet interfaces on this access
card which work in conjunction with the ISA–PR Port card plugged into the correspondent port slot,
by adding a second 16FEA–PR card up to thirty two 10/100 interfaces may be supported per ISA–PR
sub–system.
The 16FEA–PR may be plugged into any Access slot in the 1660SM, apart from slots dedicated to
common cards; e.g. Congi.
3 ) 2GBA–PR Access card: Two (2) GBE interfaces are supported (via SFP optical modules)
The 2GBA–PR board supports two 1000 SX/LX/ZX Ethernet interfaces on this access card which
work in conjunction with the ISA–PR Port card plugged into the correspondent port slot, by adding
a second 2GBA–PR card up to four GbE interfaces may be support per ISA–PR sub–system.
The 2GBA–PR may be plugged into any Access slot in the 1660SM, apart from slots dedicated to
common cards.
The GbE interfaces are Provided via a pluggable module, which can be plugged, independently into
each port on the 2GBA–PR access card and provides a range of options for the physical interface;,
in fact they have an own Remote Inventory.
At the moment three types of SFP Transceivers are provided:
GbE Long Haul optical interface 1000BASE–LX, extended 10km reach
GbE Short Haul optical interface 1000BASE–SX, 500m reach
1000BASE–ZX, 80 Km reach
ISA–PR supports up to 100 milliseconds of differential delay between Virtual Concatenation timeslots.
The ISA–PR port card and Access cards (2GBA–PR and 16FEA–PR) communicate over the 1660SM
backplane using three 1.25Gb/s communication channels. The ISA–PR port card connects the virtual
Packet Ring into the SDH physical ring using external optical cabling to one or more STM–4 interface
modules installed in the 1660SM system (Note: it is possible that these connections could be to another
16xx system).
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