ZL50110_08 ZARLINK [Zarlink Semiconductor Inc], ZL50110_08 Datasheet - Page 52

• Manufacturer Part Number: ZL50110_08
• Description: 128, 256, 512 and 1024 Channel CESoP Processors
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

4.3
The Broadband Digital Loop Carrier (BBDLC) application, shown in Figure 8, consists of a BBDLC connected to the
Central Office (CO) by a dedicated fiber link running Gigabit Ethernet (GE) rather than by NxT1/E1 or DS3/E3.
The ZL50110/11/12/14 is used to emulate TDM circuits over Ethernet by establishing CESoP connections between
the BBDLC and the CO. At the CO the native IP or Ethernet traffic is split from the CESoP connections at sent
towards the packet network. Multiple T1/E1 CESoP connections from several BBDLC are aggregated in the CO
using a larger ZL50110/11/12/14 variant, converted back to TDM circuits, and connected to a class 5 switch
destined towards the PSTN.
In this configuration T3/E3 services can also be provided. Using CESoP allows voice and data traffic to be
converged onto a single link.
Digital Loop Carrier
T1/E1
POTS
Broadband
Carrier
Digital
Loop
DLC
Figure 8 - Digital Loop Carrier using CESoP
Fiber Links
Dedicated
GIGE Over
GIGE Over
CESoP
Fiber
Fiber
ZL50110/11/12/14
Zarlink Semiconductor Inc.
Central
Office
52
N x T1/E1
N x GIGE
Switching Platform
IP Edge Router or
Switch (Class 5)
Central Office
Multi-Service
PSTN
IP
Data Sheet