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Modular Type TDM over IP Converter

View : 735
Type : E1/v.35/v.24 over IP
Description :

The TDM over IP (Ethernet) converter is mainly used to provide 4 service card slots on the IP network. It can be inserted into the E1 module (4 E1 interfaces).


The TDM over IP device is mainly used to provide 4 service card slots on the IP network. It can be inserted into the E1 module (4 E1 interfaces), voice module (4/8/16 FOX/FXS interface), and V.35 module (2 channels). V.35 interface), serial interface module (4-ch RS232/422/485 interface); maximum capacity can be filled in 4 slots. It enables operators and enterprises to seamlessly and reliably connect TDM devices and user Ethernet on a standard low-cost wireless or wired Ethernet/IP fabric with no impact on voice quality.


TDM over IP is transparent to TDM signals, ensuring that any device with a physical E1 interface is seamlessly connected, such as PBX, mobile base stations, SS7 signaling devices, and voice mail systems. It can be used in IP-based communication systems such as LAN, WAN, MAN, and wireless networks. It has 4 slot service cards, 2 100/1000M Ethernet ports, 1 100/1000M Ethernet optical port, and 1 console management interface.


Modular Type TDM over IP Converter Modular Type TDM over IP Converter


It provides 4 slot service card, 2*100/1000M Ethernet ports, and 1*100/1000M Ethernet SFP port;

E1 port can be 75Ω or 120Ω;

Transparent transmission of unframed/framing E1 (N*64K) signals over IP networks, in compliance with G.703

The clock recovery adopts the unique clock algorithm technology, the frequency reproduction is stable, and the jitter
and drift is small, and the jitter and drift of the recovered clock are in accordance with G.823/G.824 and

High transmission efficiency, low transmission delay; Ethernet packet length can be set, support long packets;
support VLAN setting;

Support package loss indicator function for E1 transmission line;

Local and remote E1 loop and local E1 enable function;

High-efficiency transmission, up to 90% bandwidth utility ratio;

Support WEB network management for online upgrade of local and remote device software and hardware;

Provide 4 slots plug-in modules:
 4×unFramed E1 module (75Ω) / (120Ω)
 4×Framed E1 module (75Ω) / (120Ω), any timeslots can be set
 4×FXO/FXS/EM2-4/Magnet telephone module
 8×FXO/FXS/2 line audio/Magnet telephone module
 16×FXO/FXS/2 line audio/Magnet telephone module
 2×V.35/V.24 (2.048M Fixed speed) module
 2×V.35 (N*64K N=1-32) module
 4×RS232/422/485 module


● 100/1000M Ethernet Interface

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

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

MAC address capacity: 4096 MAC addresses can be learned

Physical interface: RJ45 seat supports auto mdix


● E1 Interface

Device interface: the device interface comply with the recommendation of G.703

Speed: 2048kb / s ± 50ppm

Code type: HDB3

Impedance: unbalanced 75 Ω / balanced 120 Ω (unbalanced coaxial interface adapter can be adapted to 75-2 / 3 coaxial cable)

Jitter characteristics: meet the recommendations of g.742 and g.823

Allowable attenuation of input port: 0 ~ 6dbm;


V.35 Interface

Interface rate: 2048Kbps

Interface Standard: Compatible with V.35 Standard

Connector: DB25

Connect Mode: DCE

Clock Type: G.703 restored clock, Internal clock


FXS Phone Interface

Ring voltage: 75V

Ring frequency: 25HZ

2-line Impedance: 600 Ohm (pick up)

Return loss: 40 dB


FXO Switch Interface

Ring detect voltage: 35V

Ring detection frequency: 17HZ-60HZ

2-line Impedance: 600 Ohm (pick up)

Return loss: 40 dB


Environmental Indicators

Operating temperature: – 10 ℃ – + 60 ℃

Storage temperature: – 40 ℃ – + 85 ℃

Working humidity: 0% – 95% (no condensation)

MTBF: > 100000 hours




Function Description

Multi-service TDM over IP

Port Description

1 SFP optic port, 2 Ethernet ports, 4 slots

Power Supply

AC220V or DC-48V (Power optional), Support power backup

Product Size



2.6Kg / pc


application of Modular Type TDM over IP Converter

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