Modules : [ PSPE1S ] [ PSPX21M ] [ PSPLL ]
[back
PSP3U]
PSPE1S : Shared E1 over VLAN
This module allows multiples virtual E1 leased line creation
:
Three
configurations are available :
Point to point (see PSPE1)
Point to multipoint
Multipoint to multipoint
Point to multipoint : point to multipoint E1 interconnection with VLAN line back-up
Main E1 channels (Tetra PBX in this case) are
splitted between 4 remote sites.

Multipoint to multipoint : multipoint to multipoint virtual E1 interconnection
E1 channels are shared between all 5 sites opening virtual channels and
giving full interoperability between 5 sites.

Benefits :
- The need of physical lines is divided up to 50 %.
- Operational costs are tremendously decreased.
Technical specifications
Network Interface :
universal
Ethernet : 10
BaseT, Half-Duplex
network protocol : L2 VLAN, Tag 802.1P / 802.1Q
Link Back-up : (click
on image to zoom)
In VPN-VLAN mode ....... 
Using Quadrillium back-up service based on link monitoring
E1 User Interface :
impedance : 120ohms / RJ45
Rate : 2,048Mbit/s (plesiochronous clock +/- 50ppm / E1)
Network transfer stability : 0,1 ppm
mode : frames & unframed
point to multipoint : 4 x n x 64k
multipoint to multipoint : 5 x 5 x 64k
Management
:
PSPE1S equipments are managed by a web browser.
It is possible to manage all the
link (local and remote equipments).
Connection
is made :
- local & remotely trough an "in-band" connection on Ethernet network link