Valiant: Multiplexers, Teleprotection, GPS PRC, TDM over IP

VCL Products > IP over TDM > Ethernet over T1

The equipment must be always installed and used in pairs, with one terminal being installed at either end of the T1 link.

Ethernet over T1 Converters (IP over TDM)

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Valiant offers its 4 x Ethernet over T1 (IP over TDM) package in a 1U High, 19-inch rack-mountable chassis. It provides four 10/100BaseT (4 RJ-45) data interfaces on the user side which may be used to transport Ethernet traffic over a T1 link. The converter provides a simple and cost effective method to convert and transport Ethernet data over a T1 link. Ethernet over T1 is an Ethernet extension device utilizing TDM telecom infrastructure (of T1, DS3, SDH or microwave links carrying T1s ). It converts the Ethernet data into T1 frame format for transmission over the existing TDM (T1) links and then re-converts the T1 back into Ethernet data the far-end terminal, to BRIDGE two Ethernet LANs over the existing T1-based telecom network. The device can effectively utilize the existing TDM network to transport Ethernet data with low investment.

Features
Application Diagrams

Features and Highlights

Supports fractional T1, T1 time-slots can be selected in increments of 64 Kbps
Bandwidth can be selected upto 1544 Kbps in steps of N*64 Kbps
Minimum transmission rate of Ethernet data over T1 is 64 Kbps
Maximum transmission rate of Ethernet data over T1 is 1.544 Mbps
4x10/100BaseT Ethernet interface in accordance with IEEE802.3
AMI and B8ZS line code (user selectable) options available
SF and ESF framing (user selectable) options available
Robbed Bit Signaling option available
Ethernet frame size 1916 bytes (max)
Supports Jumbo Frames
Accommodates up to 8192 frames with a maximum frame size of 1916 bytes
Prevents any data overflows, or loss of packets in the event of a data burst
Supports X.86, LAPS and HDLC transmission protocols
Committed information rate controller
Available with MAC address list filtration, learning, and updating functions
A large external SDRAM buffering for handling data bursts
Equipment supports two clock synchronization modes, Internal clock and Network clock (Loop-Timed clock)
Local and Remote access and monitoring with either serial RS232, USB or 10/100BaseT
Supports SNMP V2

Power supply options:

-48V DC or 110V AC power supply options available
Supports 1+1 redundant power supply inputs.

Management and Control

Serial Management Port - RS232 Interface
10/100BaseT for Remote Management over a LAN
10/100BaseT telnet over a TCP/IP Network
SNMP V2.

Indications and Alarm Monitoring

T1 Loss of signal
Presence of incoming signal at 10/100BaseT Ethernet
Loss of Ethernet packets, errored Ethernet packets, over-sized Ethernet packets and under-sized Ethernet packets log
Configuration error alarm
Clock status
-48V DC or 110V AC present
3.3V DC present.