Specifications

RICi-4E1/T1, RICi-8E1/T1 Ver. 2.0 Overview 1-1
Chapter 1
Introduction
1.1 Overview
RICi-4E1/T1, RICi-8E1/T1 is a Network Termination Unit (NTU) connecting Fast
Ethernet LANs over four or eight E1 or T1 circuits. RICi-4E1/T1, RICi-8E1/T1 is part
of RAD’s RICi product family. It enables service provisioning and backhaul
applications over low- and high-speed SDH/SONET and PDH circuits, from
fractional and full E1/T1 and E3/T3 over STM-1/OC-3 and STM-4/OC-12 to
Ethernet networks.
RICi-4E1/T1, RICi-8E1/T1 can bond four or eight E1 or T1 ports together using
Multilink PPP (MLPPP), creating a large virtual pipe.
RICi-4E1/T1, RICi-8E1/T1 provides Layer-2 switching (bridge) between the
Ethernet ports and the E1/T1 port, including VLAN-unaware and VLAN-aware
bridging modes supporting VLAN based Layer-2 VPNs.
Depending on the hardware configuration, RICi-4E1/T1, RICi-8E1/T1 provides
4 x 10/100BaseT or 2 x 10/100BaseT and 2 x SFP-based 100BaseFx Fast Ethernet
ports. In the 4 x 10/100BaseT configuration, you may use one Ethernet port for
out-of-band management. In addition, RICi-4E1/T1, RICi-8E1/T1 collects data that
allows monitoring the performance and troubleshooting.
Serial data in RICi-4E1/T1 passes via the E1/T1 port and has priority over the LAN
traffic.
RICi-4E1/T1, RICi-8E1/T1 supports Telnet, Web terminal, and SNMP for inband
configuration and management, as well as an ASCII terminal for out-of-band
management.
RICi-4E1/T1, RICi-8E1/T1 ships as a compact standalone enclosure (1U, 8.5”
wide), with an optional 19” rack mounting kit.
Product Options
Uplink Options
The following uplink options are available:
• RICi-4E1 and RICi-4T1: Four E1/T1 ports
• RICi-8E1 and RICi-8T1: Eight E1/T1 ports.
The E1 ports can be balanced or unbalanced.
Ethernet Port Options
RICi-4E1/T1, RICi-8E1/T1 has four Fast Ethernet interfaces, available in one of the
following configurations: