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30-Channel FXO/FXS over E1 PCM Multiplexer

View : 2,410
Type : E1 PCM Multiplexer
Description :

This 1U 19-inch rack-mounted PCM multiplexer can provide 30 channels of telephone output.


This 1U 19-inch rack-mounted PCM multiplexer can provide 30 channels of telephone output.

This device uses all-digital circuits, ensuring reliable and stable operation, low power consumption, high integration, small size, and easy installation and maintenance.


This PCM multiplexer can monitor the alarm status of the remote end.

E1 interface complies with the G.703 recommendation and uses all-digital clock recovery and smooth phase-locked loop technology.

Voice interface supports FXO and FXS ports, as well as EM2/4 audio interfaces. FXO ports connect to PBX, while FXS ports connect to user telephones.

Supports calling number display and reverse polarity billing function.

Supports mutual dialing function between various sites.

The device can detect whether the remote device is powered off or the E1 is not working when the E1 signal is lost.

Multiple power supply options, such as AC220V, DC-48V/DC24V, etc.

 1U rack-mountable unit with independent SNMP network management.

The telephone interface comes with lightning protection, meeting the GB/T17626.5 (IEC61000-4-5) short-circuit current wave 8/20μs and open-circuit peak output voltage 6KV standards.


● E1 Interface

Standard: comply with protocol G.703;

Rate: n*64Kbps±50ppm;

Line Code: HDB3;

E1 Impedance: 75Ω (unbalance), 120Ω (balance);

Jitter Performance: In accord with protocol G.742 and G.823

Input Port Attenuation Allowed: 0~6dBm


FXS Phone Port

Ring voltage: 75V

Ring frequency: 25HZ

2-wire Impedance: 600 Ohm (off-hook)

Return loss: 40 dB


FXO Trunk Port

Ring detection voltage: 35V

Ring detection frequency: 17HZ-60HZ

2-wire Impedance: 600 Ohm (off-hook)

Return loss: 40 dB


EM 2/4 Wire

AD: 0dB

DA: 0dB

2/4-wire Impedance: 600 Ohm

Return loss: 20 dB


Working Environment

Working temperature: -10°C ~ 50°C

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

Storage temperature: -40°C ~ 80°C

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




Function Description

30*POTS (FXO/FXS/2 wire Voice) E1 Mux, 19inch 1U Type

Power Supply

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

Power consumption: ≤10W


19inch 485X138X45mm(WxDxH)


19inch  2.4KG

Application of PCM Multiplexer

application of POTS FXS/FXO over E1 PCM Multiplexer

Questions You May Ask

Q: How long is the lead time after placing an order?

A: The specific lead time will vary depending on the quantity and the product. Generally, it will be 3 to 5 days.


Q: What is the MOQ?

A: For most products we support sample order. 


Q: Can the logo be customized?

A: Yes, OEM is supported.


Q: How can I get a quote?

A: After you submit your inquiry and confirm the product specifications, we will provide you with a detailed quote as soon as possible.


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