IP over TDM
Ethernet over T1

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.

Status Monitoring

• Status of alarms on T1 Interface
• Status of the Ethernet Interfaces
• Monitoring data through put speed of the Ethernet Interfaces.

Programmable Features

• Telnet interface for remote programming and monitoring by using CLI text commands.

Applications

• 10/100BaseT Ethernet to T1 Conversion (100BaseT over a T1 Interface).