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16Voice + 4FE + 4*RS232/422/485 over E1 PCM Multiplexer

View : 1,214
Type : E1 PCM Multiplexer
Description :

The device provides one E1 interface, 16 telephone outputs, and an optional 4-channel RS232/422/485 with 4-channel Ethernet.


The device provides one E1 interface, 16 telephone outputs, and an optional 4-channel RS232/422/485 with 4-channel Ethernet. It is designed with a fully digital circuit, which has reliable and stable operation, low power consumption, high integration, small size, and easy installation and maintenance.


16 ch voice over e1 pcm mux 16 ch voice over e1 pcm mux


The device can monitor the alarm status of the remote end.

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

Voice port supports FXO/FXS/2&4-wire EM/2&4-wire audio/magnetic telephone interfaces. The FXO port is connected to the PBX, and the FXS port is connected to the user’s telephone.

It provides four expansion interfaces that can expand 1-4 asynchronous data such as RS232/RS485/RS422/TTL, or 1-8 dry contact signals.

Ethernet interface rate is 10/100M, full/half duplex fully adaptive, and supports VLAN partitioning.

Each Ethernet ports support Auto-MDIX (cross/straight cable adaptation).

It supports caller ID display, reverse polarity charging, and fax function.

It supports mutual dialing function between different sites.

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

It provides two clock modes: E1 master clock and E1 line clock.

It provides three loopback functions: ANA (local loopback), DIG (Ethernet interface loopback to the remote end), and REM (remote Ethernet interface loopback to the local end).

It has a pseudo-random code testing function (PATT), which is convenient for line commissioning and can be used as a single E1-bit error tester.

E1 can support N*64k (N=1-32) rates, that is, the rate can be adjusted from 64K to 2048K.

Multiple power supply options are available: AC220V, DC-48V/DC24V, etc.; support dual power backup modes such as AC+DC, AC+AC, and DC+DC.

The telephone interface is equipped with lightning protection, which can withstand short-circuit current wave 10/700μs and open-circuit peak output voltage 6KV, in accordance with the GB/T17626.5 (IEC61000-4-5) standard.


● 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


● Ethernet Interface (10/100M)

Rate: 10/100 Mbps, half/full duplex auto-negotiation

Standard: Compatible with IEEE 802.3, IEEE 802.1Q (VLAN)

MAC Address Table Capacity: 4096

Connector: RJ45, support Auto-MDIX


● 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)


Model FCC-E1O16F4R4/FCC-E1S16F4R4
Function Description E1-16*Voices+4FE+4RS-232/422/485, Console, 19-inch 1U, Support 6U rackmount
Power Supply

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

Power consumption: ≤10W

Dimension 19inch 1U  483 (L)*138(W)*44(H)mm  



typical solution 1——- Ordinary voice Access

application of 16 ch voice over e1 pcm mux

typical solution 2——- Hotline Access

application of 16 ch voice over e1 pcm mux


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