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ISA – PR MATRIX
1660SM can host PR matrix (generically ISA–PR board) and relevant access cards:
It provides a shared carrier–class Ethernet Packet Ring embedded, in a flexible manner over SDH
VCs (with VC–4–nv framing), either physically or logically into the SDH infrastructure.
The ISA–PR is a Layer 2 MPLS–based statistical packet switch with Ethernet and GBE interfaces
operating a Resilient Packet Ring transported over multiple STM–4 standard interfaces.
The ISA–PR port card is a RPR switch with four STM–4 interfaces providing 6.5 Gbps packet
throughput with a provisionable trunk capacity of 1.2 Gbps both in East and West directions.
On its front plate a RJ45 connector provides the connection toward the Local Craft Terminal
or the Operation System.
The following table summarizes the interfaces that can accede to the PR functions:
TYPE OF INTERFACE
Ethernet (E, FE, GE)
Two access card types are availale (also in mixed configuration):
–
16 FEA–PR – Fast ETHERNET access card
10/100 Ethernet Access card supporting sixteen (16) 10/100 Fast Ethernet interfaces.
Up to four 16FEA–PR access cards can be equipped.
–
2 GBA–PR – GigaBit Ethernet access card
GigaBit Ethernet Access card supporting two (2) GigaBit Ethernet interfaces.
•
ISA – Fast ETHERNET unit
The unit is able to provide 25 x 10/100 Mb/s Ethernet interfaces to allow LAN–to–LAN
connections.
In the main port are provided 11 connectors on the front panel of the unit. The main port can
be used in conjunction with the relevant access module (ETH–ATX) which is able to provide 14
additional 10/100 Mb/s Ethernet interfaces.
Ethernet frames are mapped over an SDH VC (VC–12, VC–3, VC–4) with a max. throughput
of 622 Mbt/s toward the backplane.
Each physical interface can independently be mapped into the relevant VC according to the
required bit rate.
N.B.
The Fast Ethernet unit 10/100 Mb/s can be also used in conjunction with the Gigabit
Ethernet Access card (GETH–AG); in this configuration the Fast Ethernet unit can
handle the following interfaces:
–
–
ED
02
CONTAINER
SDH
VC–4
MAC 802.3
two Gbit Ethernet interfaces (on the access card GETH–AG); Ethernet frames
are mapped over a single SDH VC–4.
11 Interfaces 10/100 Mb/s Ethernet interfaces (on the Main board)
NOTES
also "802.1p/q Tagged"
3AL 91669 AA AA
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