16Voice+4FE+4*RS232 over E1 PCM Multiplexer

This equipment provides E1 access,1~16 channel voice outputs, 4 channel data (RS232/422/485), and 4*10/100M ethernet optional (bandwidth 2M), 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 proprietary integrated circuits;

● Alarm status can be monitored on the end;

● E1 interface complies with G.703, all-digital clock recovery, and smooth phase-locked technology;

● Support FXO/FXS, EM2/4 audio, Magnet Telephone Interface, FXO port docking with program-controlled switchboard, FXS port connected to the user’s telephone

● Providing four expansion interfaces, which can be extended from 1 to 4 asynchronous data, such as RS232/485/422/Manchester codes; Or 1 to 8*channel dry contact interface ;

● Ethernet interface 10M/100M, full/half duplex fully adaptive, support VLAN division;

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

● 16 line voice access, support caller ID function and reverse polarity billing functions;

● Support Telephone Number mutual function of each site;

● E1 signal can be detected as a barrier to the end device is lost or shut E1;

● Provide two kinds of clock ways: E1 master clock, E1 line clock;

● Provides three kinds of loopback: E1 local loopback (ANA), the Ethernet interface to the remote loopback (DIG), command peer Ethernet interface to the local loop (REM);

● There are pseudo-random code test functions (PATT), to facilitate the opening line, which can be when one of E1 BERT to use;

● E1 can support N * 64k (N = 1-32) rate, that rate is adjustable from 64K-2048K;

● Multiple power mode options: AC220V, DC-48V / DC24V, etc;

● 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 Line

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