TDM over IP gateway ELF2-PP (E1 over IP)
| Features
- partial or complete transfer of the E1 stream
- support of E1 master/slave
- support of VLAN
- selection of the package size
- selection of the TOS filed, numbers of the ports for traffic prioritization
- control via the USB console or telnet
- table-top or rack-mounts
Applications
- remote multi-channel telephone terminals over Wifi
- E1 channels for PBX connection over data networks
Resources
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Description
ELF2-PP is designed to organize the E1 virtual channel via the packet data transmission networks. The device allows ground for organization of the multiservice networks (voice+data) based on the Ethernet infrastructure. This solution as compared to VoIP is, sometimes, a preferred choice allowing simplification of configuration and operation of the telecommunication channel.
Necessary operation conditions of ELF2-PP are as follows:
- availability of a separate broadband link with the Ethernet "twisted pair" interfaces
- support by the QOS hardware for the Ethernet commutation in case of simultaneous data and voice transfer
- small delay of packet transmission (no more than 30 ms "back and forth"), otherwise usage of the external echo suppressors is recommended in the E1 channel
Peculiarities of ELF2-PP are as follows:
- transparency for telephone signaling protocols
- complete recovery of initial cyclic and super cyclic structure of the E1 frame
- restoration of temporal characteristics of the G.703 signal
- delay compensation of packet transmission via the Ethernet infrastructure
- usage of UDP or Ethernet packages to encapsulate E1 data
- adjustability of the packages sizes and value of the compensating buffer
Order codes
| ELF2-PP | TDM over IP gateway: 1 Ethernet port, 1 E1 port, case
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| ELF2-PP-1U | TDM over IP gateway: 1 Ethernet port, 1 E1 port, rack mount
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| ELF2-PP2-1U | TDM over IP gateway: 2 Ethernet port, 2 E1 port, rack mount
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Accessories
BPE-60
| Power module for ELF2 (DC-DC 36..72 V)
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