Description
This model adopts inverse multiplexing technology that transmitting 1-4 10/100BaseTs or 10/100Base-FX Ethernet over 1~8 E1 links.
Employing Ethernet-over-PDH technique, it allows the transport of native Ethernet frames over the well-established PDH telecommunications infrastructure. This enables carriers to make use of the extensive legacy PDH and TDM equipment to provide new Ethernet-centric services.
It supports flexible configuration if 1~8E1 links, auto-detecting the number of E1 and selecting the available channels. It allows certain delay between the multi-E1 links.
The rate of one link is 1980kbps, and 7920kbps for 8 links.
Features
nRealize transparent transmission of Ethernet data over 1 to 8 E1 channels.
nProvide 4100BaseTs Ethernet (or 100Base-FX Ethernet)
nAllow 8 E1 channels up to 220ms transmission delay. When the delay exceeds allowed limit range, it can stop transmitting data automatically.
nSupports Dynamic Ethernet MAC address (4096) with local address filter function.
nHas 2 loop back functions: E1 local loop, E1 remote loop.
nE1 interface compatible with ITU-T G.703, and G.823. not supporting signal timeslot.
nCLK mode: support internal CLK mode and E1 line CLK mode. E1 line CLK realizes auto-switch over the E1 line according the signal quality.
nCompatible with ITU-T protocol: G.7041 (GFP-F) , G.7042 (VCAT, LCAS), G.7043, G.8040.
nE1 loop detecting: if any channel of E1 loop detected, it will cut off the channel. And after the loop released, the channel will be renewal.
nSupports resetting remote system from local system.
nSupport Console management .
Parameter and Specifications
E1 interface
Standard: E1 interface Compatible with G.703 standard.
Rate: 2.048Mbit/s±50ppm
Coding: HDB3
Impedance: 75Ω (unbalance)/ 120Ω (balance)
Connector: BNC (75Ω)/ RJ45 (120Ω)
Jitter Performance: According to G.742 and G.823
10/100Base-T
Rate: 10/100M, full/half duplex auto-adapt.
Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN)
MAC address table: 4096 MAC addresses.
Ethernet buffer: 64Mbits SDRAM
Physical interface: RJ45, support AUTO-MDIX (cross over and straight through auto-adapt)
10/100Base-FX
Rate: 100M, full duplex
Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN)
MAC address table: 4096 MAC addresses.
Ethernet buffer: 64Mbits SDRAM
Physical interface: FC/SC
Dimension
1U/19inch: 483(W)*140(D)*44(H)
Operating environment
Voltage: AC180V ~ 240V; DC –48V
Power Consumption: ≤5W
Working temperature: -10°C~50°C
Storage temperature: -15°C~70°C
Humidity: 95 %