Specifications

Installation and Operation Manual Chapter 1 Introduction
MiTOP-E1/T1 Ver. 1.0 Functional Description 1-3
Figure 1-3. MiTOP-E1/T1 Dimensions
1.3 Functional Description
MiTOP-E1/T1 provides TDM connectivity across the Ethernet, MPLS or IP network.
A single bundle (group of timeslots) can be transmitted in a TDM pseudowire
(PW) to a predefined far-end bundle.
MiTOP-E1/T1 includes a single E1/T1 TDM port. Traffic is transmitted over the
network, using the CESoPSN or SAToP encapsulation method.
TDM Service Type
MiTOP-E1/T1 TDM interface operates in unframed mode, the incoming bit stream
from each channel (regardless of framing) is converted into IP over Ethernet
frames. This provides clear channel end-to-end service (unframed).
Payload Encapsulation
MiTOP-E1/T1 supports the following payload encapsulation techniques: CESoPSN
and SAToP.
CESoPSN
The CESoPSN (Circuit Emulation Service over PSN) is a structure-aware format for
framed E1/T1 services. It converts structured E1/T1 data flows into MEF, IP or
MPLS packets and vice versa with static assignment of timeslots inside a bundle
according to ITU-T Y.1413 and IETF RFC 5086. The CESoPSN packet size is a
multiple of TDM frame size.