Nx E1 Over IP Tdmoip Fiber Multiplexer Devices (TDMOIP)

TDMoIP device is mainly used to transmit voice signal in the IP net, have 1/2 E1 interface, 2 Ethernet local port and 1Ethernet uplink port. TDMoIP can connect TDM device and user's Ethernet seamlessly and reliably on the standard low cost wireless or wire Ethernet/IP configuration, and don't affect the voice quantity. TDMoIP is transparent to the TEM signal. Assured seamless connect to any device of physical E1 interface. Such as PBX, mobile base, SS7 signal device and voice mail system. It can be used in the communication system based on E1, such as LAN, WAN, MAN and wireless net.
Provide imitate veritable E1 channel through Ethernet, the difficult is rebuilding timing information of E1 code stream effectively. Must overcome Ethernet's disadvantage such as packet delay random, without effective timing transmit mechanism, transmit mistake code and lose packet for collision.

Characteristics:
1. Thorough IP net transmit frame, non-frame and frame franctional E1(N*64K)signal Transparently, confirm to G. 703
2. High transmit effect, low transmit delay
3. Provide 1/2E1 channel and 110/100Base-TX download interface, universal RJ45 Ethernet interface, 10M/100M auto-adapt
4. Ethernet packet length can set, sustain long packet
5. User can select IP protocol encapsulation and simplicity Ethernet envelope
6. Support VLAN
7. Point to point, point to many points connect, satisfy different application demand.
8. High efficient transmission, can up to 90% bandwidth usage efficient;
9. Support 75Ω And 120Ω Interface, don't need to set:
10.10/100M Ethernet, full/halt duplex auto-adapt, auto-mdix
11. When select net adaptation clock, can resume originality clock exactly through TDM clock resume device, clock stable\jitter and excursion small, conform to ITU-T clock jitter and excursion standard;

Parameter and index:
E1 interface
1. Standard: E1 interface conform to G703
2. Interface code speed: 2.048Mbit/s± 50ppm
3. Code model: HDB3
4. Impendence: 75Ω (unbalance)120Ω (balance)
5. Connector: BNC(75Ω Unbalance)/ RJ45(120Ω Balance)
6. Jitter tolerance: Conform to G. 742 and G. 823
10/100Base-T port
1. Rate: 10/100M, full/half duplex self adapt
2. Protocol: Support IEEE 802.3, IEEE 802.1Q(VLAN)
3. MAC address table: 1024 MAC addresses
4. Physical interface: RJ45 support AUTO-MDIX