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

This equipment provides E1 access,1~4 channel voice outputs, and supports the 4U rack. 1channel Ethernet (bandwidth 2M) +4*channel RS232/422/485/Dry contact. The electricity part is a digital circuit. The superiority of this product is reliable work and stability with high integration and lower energy consumption. Small size for easy installation and maintenance. Most clients of telecom operators rent E1 line for ethernet networking, while this equipment could supply more telephone lines on E1 and free calls between head office and branch.

● Based on self-copyright IC

● Can monitor the remote alarm status

● E1 interface complies with G.703 and adopts digital clock recovery and smooth phase-lock technology.

● Voice port supports FXO and FXS port, 2/4 wire audio interface, Magnet phone, FXO port docking with program-controlled switchboard, FXS port connected to the user’s telephone

● Provide 4 expansion interfaces, which can extend 1channel Ethernet (bandwidth 2M), and 1~4 channels asynchronous data, such as RS232/485/422/Manchester /Dry Contact interface.

● Ethernet interface rate is 10/100M, duplex/half duplex adaptive, supports VLAN.

● 1~4 Channel voice access, supports caller ID feature and reverse polarity billing functions

● Support various sites’ mutual number allocation function

● Can detect the end device is power-off or the E1 line is broken when they lost signal, through the LED indicates alarm

● Provide 2 clock types: E1 master clock and E1 line clock

● Have three Loop Back Mode: E1 interface Loop Back (ANA), Ethernet interface Loop Back(DIG), Command the remote Ethernet interface Loop Back(REM)

● Have PATT function, easy for opening lines, can use as an E1 bit-error tester.

● E1 can support N * 64k (N = 1-32) rate, which means the rate is adjustable from 64K-2048K.

● Multiple power mode options: AC220V, DC-48V / DC24V and so on

● Telephone interface with lightning protection, lightning reached IEC61000-4-5,Short circuit current wave 8/20μs,open-peak output voltage 6KV standards

• E1 Interface

 Interface Standard: comply with protocol G.703;
 Interface Rate:     n*64Kbps±50ppm;
 Interface Code: HDB3;

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

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

 Allowed Attenuation:     0~6dBm

• FXS Phone Interface

Ring voltage: 75V

Ring frequency: 25HZ

Two-line Impedance: 600 Ohm (pick up)

Return loss: 40 dB

• FXO Switch Interface

Ring detect voltage: 35V

Ring detection frequency:    17HZ-60HZ

Two-line Impedance: 600 Ohm (pick up)

Return loss: 40 dB

• EM 2/4 Wire Interface

AD:     0dB

DA:     0dB

Two/Four-line Impedance:      600 Ohm

Return loss:  20 dB

• Ethernet interface(10/100M)

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

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

MAC Address Capability:     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)

Typical solution 1——- Ordinary voice Access

Typical solution 2——- Hotline Access