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Multiplexor E1-XL/S-IP
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Features:
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Purpose
Reliable transmit framed (full or fractional) or unframed E1 stream over a packet network (IP or Ethernet) with optimization of the traffic due to voice compression and removal of repeats and idle times.
Additional opportunities
Clock recovery on basis of timetable of receiving of network packets, according to the set parameters and model of a transport network. Compression up to thirty specified voice timeslots. Transfer of network packets with redundancy and interleaving for indemnification of losses in a network. Runs as a LAN-router or transparent Ethernet bridge, with bandwidth control and QoS support.
Description
E1-XL-IP provides reliable, transparent transportation framed (full or fractional) or unframed E1 stream over an asynchronous packet network (IP or Ethernet). One of the features of the multiplexor is use of original algorithm of synchronization clock recovery by rate of network packets receiving, according to the specified parameters and model of a transport network. Restoration of frequency to within ±2,5×10-4 ppm is possible.
Also the original transport protocol with smaller volume of an overhead charge and the integrated mechanism of selective repeated transfer in view of a real instant round-trip delay is applied. In addition, optional transmission of network packets with redundancy and interleaving allows compensating even frequent losses in a transport network.
For minimization of the network traffic the device is capable to compress repetitions in data and idle times of E1 stream. Besides it, the device has an opportunity of compression of the specified timeslots (ITU-T G.726 16/24/32/40 Kbps, Lossless), VAD/CNG, DTX, "Dynamic Fibers" technology and analysis of E1-stream on timeslot/byte basis.
The delay which brings the device at processing traffic E1 depends on the selected operating mode and configurable size of a network transport unit. Packet delivery variation (PDV or packet jitter) in a basic transport network is compensated by data buffering, thus the general delay, with brings by the device accordingly increases. E1-XL-IP can provide necessary buffering for jitter indemnification up to 500 ms.
E1-XL-IP has one or two Ethernet 10/100BaseT half/full duplex interfaces with auto-negotiation. Models with two Ethernet can be works as a LAN IP-router or Ethernet bridge. QoS support includes processing VLAN-tags and TOS/Diffserv fields, bandwidth control with priorities of packets, manage TOS/Diffserv & VLAN-tags for TDM/IP packets.
Manageable by console interface RS-232/V.24 or from SSH hosts. For testing purposes built loopbacks aside E1 interface, and aside remote TDM/IP device are available. Firmware updating through Internet or from console interface is stipulated.
Discontinued products:- E1-XL/B-IP-AC ==>> new code E1-XL/S-IP/1E1-1D-AC
- E1-XL/S-IP-AC ==>> new code E1-XL/S-IP/1E1-1D-AC
Order codes:
Currently available models are listed in Prices. Please, contact technical support if you are unsure which model to choose.
| E1 Interface | |
|---|---|
| Standards | ITU-T G.703, G.704, G.706, G.732, G.823 |
| Modes | Unframed, Full or fractional framed |
| Line code | HDB3 or AMI |
| Line impedance | Balanced 120Ω |
| Receive level | Configurable, from 0 to −12dB or from −43dB (up to 2.5 km over a 0.6 mm2 twisted cupper) |
| Jitter performance | per ITU-T G.823 |
| Framing | Unframed, CRC-4 with or without MF, CAS with or without MF |
| Data rate | 2.048 Mbps from unframed mode, Nx64Kbps up to 1984 Kbps for framed mode |
| Errors detection | Code violations, CRC-CCITT checksum |
| Connector | RJ-48, female |
| TDM/IP Engine | |
| Standards | ITU-T G.711, G.726, G.823 |
| Synchronization | Internal (from internal oscillator), External (from the E1-port receiver), Recovered (by original algorithm on the basis of timetable of receiving of network packets) |
| Clock recovery accuracy | within ±2,5×10-4 ppm (±0,5×10-3 Hz) |
| Network transport protocols | UDP over IPv4, raw IPv4 packets |
| Transport packet size | Configurable |
| Packet loss compensation | Transferring with redundancy and interleaving, selective repeated transmission in view of a real current round-trip delay |
| PDV compensation | Adjustable buffering, up to 500 ms |
| In-device processing delay | It is defined by the configured operating mode and size of a transport packets, not less than 8 ms |
| Data & Voice compression | Optionally, Dynamic Fibers, VAD/CNG, DTX, voice compression ITU-T G.726 16/24/32/40 Kbps, Lossless (bypass fax/V.34/V.92) up to 30 timeslots, removal of repetitions and idle times of a E1-stream |
| Telephone signaling translation | Transparent for all types |
| Last firmware version | 20 dec 2007, DF/DTX 1.0.1 build 2141-2143 |
| Network | |
| Standards | IEEE 802.3, 802.3u, 802.1p, 802.1Q |
| Interfaces | One or two Ethernet 10/100Base-T half/full duplex interfaces with auto-negotiation |
| Connector | RJ-45 |
| Integration | With more than one network ports opportunity of work as transparent Ethernet bridge or LAN IP-router, User data bandwidth limiting |
| QoS Support | Processing VLAN-tags and TOS/Diffserv fields, Bandwidth control with priorities of packets, TOS/Diffserv & VLAN tagging for TDM/IP packets |
| Control | |
| Interfaces | SSH over Network, RS-232/V.24 DTE serial port |
| Connector | DB-9, male |
| Firmware update | over Internet from centralized repository by HTTP (like "Windows Update") |
| Diagnostic modes | Loopback modes as aside E1 port, and aside remote TDM/IP device |
| General (rack 19" formfactor) | |
| Size | 450 × 270 × 45 mm |
| Weight | 4.4 kg |
| Power | 200-240 V, 50-60 Hz |
| Consumption | Less than 250 W |
| Temperature | From 0°C to 50°С |
| Humidity | Up to 80%, non-condensing |
| General (desktop formfactor) | |
| Size | 300 × 280 × 70 mm |
| Weight | 3 kg |
| Power | 100-240 V, 50-60 Hz |
| Consumption | Less than 250 W |
| Temperature | From 0°C to 50°С |
| Humidity | Up to 80%, non-condensing |
E1-XL/S-IP. User's Manual in Russian
E1-XL/S-IP(previous models). User's Manual in Russian
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