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Converged 4E1 TDM over IP Converter | Point to Multi-point

View : 1,132
Type : E1 TDM over IP
Description :

This 4E1 TDM over IP converter is mainly used to transmit E1 signal on the IP network.


TDM over IP device is mainly used to transmit the E1 signal on the IP network. It enables operators and enterprises to seamlessly and reliably connect TDM equipment and user Ethernet on a standard low-cost wireless or wired Ethernet/IP structure without impacting quality.


TDM over IP is transparent to TDM signals, ensuring the seamless connection of any device with a physical E1 interface, such as PBX, mobile base stations, SS7 signaling equipment, and voice mail systems. This TDM over IP converter can be used in IP-based communication systems like LAN, WAN, MAN, and wireless networks.


The 4E1 TDM over IP converter has 4 E1 service ports, 2 10/100/1000M Ethernet ports, a 100/1000M adaptive SFP optical port, and a Console management interface. This product can also be flexibly combined with 4 single E1 over IP devices to realize E1 point to multi-point networking.


Converged 4 ports E1 over IP converter which supports point-to-multipoint



Anodized aluminum alloy shell, IP40 protection grade, and it can withstand the test of harsh environments;

It provides Console (CLI) and WEB management interface;

It provides 4*E1 ports, 2*10/100/1000M Ethernet ports, and 1*100/1000M adaptive Ethernet SFP optical port;

It supports multiple destination IP + port settings, realize point-to-multipoint networking, the remote end can be a single E1, and the total number of E1s does not exceed 4;

E1 interface supports 75Ω and 120Ω without requiring any settings;

The clock recovery process employs unique clock algorithm technology, ensuring stable frequency restoration with low jitter and drift. Furthermore, the jitter and drift of the recovered clock comply with the G.823/G.824 and G.8261;

It offers high transmission efficiency and low transmission latency. Ethernet packet length can be configured, and jumbo frames are supported. Additionally, the device supports VLAN settings;

It supports the E1 link packet loss indication function;

It supports local and remote E1 loopback functions, as well as local E1 enablement settings;

It offers high transmission efficiency, with up to 90% bandwidth utilization efficiency;

It supports online software and hardware upgrades for both local and remote devices via the web management;

A variety of power supply options are available: AC220V, DC-48V/DC24V, etc.


● Ethernet Interface (10/100/1000M)

Protocol: Compliant with IEEE 802.3az, IEEE 802.1Q (VLAN)

Rate: 10/100/1000M adaptive, full/half duplex fully adaptive

MAC Address Table Capacity: 4096 MAC addresses can be learned

Connector: RJ45, support Auto-MDIX


● E1 Interface

Device Interface: The device interface conforms to the G.703

Rate: 2048Kb/s±50ppm

Line Code: HDB3

Impedance: Unbalanced 75Ω/balanced 120Ω (unbalanced with coaxial interface adapter, suitable for 75-2/3 coaxial cable)

Jitter Performance: Compliant with G.742 and G.823 recommendations

Input Port Attenuation Allowed: 0~6dbm


● Fiber

Optical port: 1

Optical port rate: 1.25G bits

Optical fiber: Single fiber double fiber

Optical interface: LC (SFP)

Wavelength: 850nm/1310nm multimode; 1310nm/1550nm single mode

Transmission distance without relay: 20~120Km

Typical transmit power:

    Single mode 1310/1550nm: ≥-9dBm

    Multimode 850nm: -18dBm

    Multimode 1310nm: -25dBm

Acceptance sensitivity range:  -28dBm~- 40dBm


● Working Environment

Working temperature: -10°C ~ 60°C

Working Humidity: 5%~95 % (no condensation)

Storage temperature: -40°C ~ +85°C

MTBF: >100,000 hours


Product Model


Product Name

Converged 4E1 TDM over IP Converter

Function Description

Transmission of 4 E1 interfaces on the IP network, 1-to-multiple networking, support for Console network management, and WEB network management 

Port Description

4*E1 interface, 2*10/100/1000M Ethernet electrical ports, 1*100/1000M adaptive Ethernet SFP optical port, WEB network management interface, console interface

Power Supply

Power supply: AC180V ~ 260V; DC –48V; DC +24V

Power consumption: ≤10W


216x130x31mm(WXDXH) Desktop Size




application of converged 4 ports e1 over ip converter


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