TD-E1-30*FXO-FXS-MUX provides conversion between ITU-T G.703 standard E1 and 1-30 voice; realize the long-distance extend of telephone line through E1 channel. TD-E1-30*FXO-FXS-MUX  is a high-performance, multi-type long-range Ethernet bridge. Its small size, low cost and very appropriate to the cost-sensitive bridging applications.

Product Characteristics

Realizes long-distance monitoring of local device to the remote device based on self-copyright IC;

Provides two clock types: E1 master clock, E1 line clock;

1channel Ethernet for option

Can support reverse polarity and 16k -12k for option

Realize the automatically rate set of local device to remote device

Has the function of pseudo-random code testing, convenient for opening of the circuit, and can be used as an error code instrument;

E1 supports 75Ω unbalanced and 120Ω balanced impedance at the same time;

Provides 30 voice channels, support calling indication

Voice port supports O port and S port, O port connects switch and S port connects user’ phone;


E1 Interface

Interface standard: Conforms to G.703 standard

Interface rate: 2048kbps

Code: HDB3

Interface impedance: 75Ω (unbalanced), 120Ω (balanced)

Connecter: BNC (75 Ω), RJ45 (120 Ω)

Vibration characteristic: Satisfies G.742 and G.823 standard

Clock type: internal-clock, line clock


Environment condition

Operating temperature: -25C ~+70 C

Storage temperature: -40 C ~ +80 C

Relative temperature: 95% (uncondensed)


Ring Voltage-75V

Ring Frequency-25Hz

Two line input impedance      600Ω(hanging off)

                Wastage40 db 

FXO switch port:

Ring test voltage35V

     Ring test frequency17HZ-60HZ

     Two line input impedance600Ω(hanging-off)

 Wastage40 db


Dimension (19inch rack mount)

Length: 483mm

Width: 140mm

Height: 44mm


Power supply

Working voltage range wide, good anti-disturb and Isolation, work stable

 Option I -DC-48V, range DC-36V--DC-72C option II —AC120V,

range AC90V-AC260V


Order information







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