ZL50110 ZARLINK [Zarlink Semiconductor Inc], ZL50110 Datasheet - Page 45

• Manufacturer Part Number: ZL50110
• Description: 128, 256 and 1024 Channel CESoP Processors
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

4.3
The Broadband Digital Loop Carrier (BBDLC) application, shown in Figure 7, 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 ZL50110/11/14 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 ZL50110/11/14 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
Multi-Tenant
T1/E1
POTS
Units
Broadband
Figure 6 - Metropolitan Area Network Aggregation using CESoP
Carrier
Digital
Loop
DLC
T1/E1
Links
Figure 7 - Digital Loop Carrier using CESoP
Fiber Links
Dedicated
GIGE Over
GIGE Over
CESoP
CESoP
Fiber
Fiber
Access
Metro
Zarlink Semiconductor Inc.
ZL50110/11/14
(Resilient Packet Ring or
Access Network
Metropolitan
Metro Ethernet)
Central
Office
Metro
Core
45
OC-3, DS3
Access
Metro
N x T1/E1
N x GIGE
CESoP
Switching Platform
IP Edge Router or
Switch (Class 5)
T1/E1
Links
Central Office
Multi-Service
Campus
PSTN
IP
Data Sheet