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RICi-622GE Gigabit Ethernet over 2 x STM-4/OC-12 Network Termination Unit

RICi-622GE Gigabit Ethernet over 2 x STM-4/OC-12 Network Termination Unit

RICi-622GE is a state-of-the-art network termination unit (NTU) that bridges between Gigabit Ethernet networks andSTM-4/OC-12 
networks, providing simple, efficient, and cost-effective Gigabit Ethernet connectivity over SDH/SONET
networks. The device offers a migration path for connecting future-ready IP devices to existing SDH/SONET networks at up to 1.2 
Gbps access rates.

RAD RICi-622GE complies with RAD’s unique set of EtherAccessTM features. This feature set provides services and carrier 
backhaul applications over low and high-speed SDH/SONET and PDH circuits, from fractional and full E1/T1 or E3/T3 over STM-
1/OC-3c or STM-4/OC-12 to Gigabit Ethernet.

Typical applications for the RICi-622GE include aggregating up to eight remote IP DSLAM backhauling sites (Figure 1), enterprise 
connectivity (Figure 2), and high-bandwidth private line services.

RICi-622GE is equipped with two STM-4/OC-12 ports with SFP-based optical interfaces, offering either 1.2 Gbps with link bonding 
using VCAT (G.707/Y.1322) and LCAS (G.7042), or 1+1 link protection mechanism (unidirectional MSP/APS) to increase service 
uptime. The RAD RICi-622GE has two Gigabit Ethernet ports that support Gigabit Ethernet link redundancy based on standard link 
aggregation protocol IEEE 802.3ad. The Gigabit Ethernet ports can be ordered with SFP-based optical interfaces or 
10/100/1000BaseT interfaces.

RICi-622GE FLEXIBLE TRAFFIC MAPPING
The incoming customer traffic is mapped to the Ethernet flows (EVCs) using the following per-port criteria:
• Port-based (All-in-one bundling)
• User port + CE-VID
• User port + CE-VLAN priority. Each Ethernet flow can either have a single service assigned to it or up to eight services that are 
differentiated by the CE-VLAN P-bits (EVC.CoS).

RICi-622GE ENCAPSULATION
Traffic is encapsulated with:
• Generic Framing Procedure (ITU-T G.7041, ANSI T1-105.02), framed mode
• Link Access Procedure for SDH/SONET (LAPS) protocol following draft recommendation ITU-T X.86.

RICi-622GE Gigabit Ethernet over 2 x STM-4/OC-12 Network Termination Unit
RAD RICi-622GE QUALITY OF SERVICE – QoS
Different service types require different levels of QoS to be provided end-to-end. QoS can be defined per subscriber as well
as per service. QoS has two aspects: rate limitation and traffic prioritization. 

Two policing mechanisms (upstream and
downstream) are applied per service. The policing mechanisms operate according to the dual leaky bucket mechanism (CIR+CBS, 
EIR + EBS: two rates, three colors).

For prioritizing user traffic, RICi-622GE features up to four separate queues. The queues handle traffic with different service 
demands, such as real-time traffic, premium data, or best-effort data. The preceding capabilities allow service providers to offer 
different services and traffic types over the same link.

SDH/SONET TIMING OPTIONS WITH RAD RICi-622GE
The user can define the following SDH/SONET clock sources:
• Internal
• Recovered from STM-4/OC-12 interface.

SDH/SONET RICi-622GE LINK REDUNDANCY
The unit supports a 1+1 link protection mechanism (APS), according to the ITU-T G.841 requirements (unidirectional
MSP). Additional protection is provided by the VCAT and LCAS protocols.

RICi-622GE GIGABIT ETHERNET LINK REDUNDANCY
To allow reliable and uninterrupted service, the Gigabit Ethernet ports can be set to work in 1:1 or 1+1 automatic protection 
switching mode, according to link aggregation protocol (IEEE 802.3ad).

MEF COMPLIANCE OF RAD RICi-622GE
RICi-622GE is certified by the Metro Ethernet Forum (MEF) for the following services:
MEF 9: EPL, EVPL
MEF 14: EPL, EVPL

RICi-622GE FAULT PROPAGATION
The RAD RICi-622GE features a user-configurable bidirectional fault propagation mechanism that notifies local and remote 
equipment of faulty conditions. This enables routers and switches on both ends of the link to reroute traffic.
SDH/SONET alarms can optionally propagate and cause the Gigabit Ethernet link to shut down. The Gigabit Ethernet alarms can 
also be propagated over the SDH/SONET link.

RICi-622GE MANAGEMENT
The RAD RICi-622GE can be managed with the following ports and applications:
• Out-of-band management via Fast Ethernet or RS-232 port
• Remote inband management via SDH/SONET or Gigabit Ethernet port. Remote management is performed using Telnet, Web 
browser, or an SNMP-based management system.

RICi-622GE SECURITY
RICi-622GE supports the following security protocols, providing a high level of client-server communication security.
• SNMPv3
• RADIUS authentication
• SSL for Web-based management
application
• SSH for Secure Shell communication
session.

RAD RICi-622GE data sheet

RICi-622GE Gigabit Ethernet over 2 x STM-4/OC-12 Network Termination Unit product data sheet (pdf)

Immediate price quote - Call 727-398-5252 or e-mail cs@bestdatasource.com

Don't forget to ask about  RADCare support for your RAD products.

Other RAD sections of interest:
RAD Accessories, RAD ATM products, RAD Baseband modems and last mile access, RAD Cables & Misc, RAD Digital Service Access Devices ( FCD ), RAD Fiber Optic modems and Converters, RAD IP and Ethernet Access, RAD Kilomux Data, Voice, Fax and LAN integrating Multiplexers, RAD LRS Modem rackRAD MegaplexRAD Networks Management, RAD Optimux Fiber Multiplexers, RAD Rate and Interface Converters, RAD Sharing Devices, RAD Short Range ModemsRAD T1/E1 Digital Cross Connects ( DACS ), RAD T1/E1 Digital Cross Connect (DACS) for single E1 / T1 applications, RAD TDMoIP, RAD Voice Interface Converters, RAD Voice Trunking Gateway

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Last modified: May 15, 2017