30Voice over E1 PCM Mux | CAS Signaling

This device is a kind of developed transmission equipment based on our company E1 line transmission the special-use VLSI. It has an alarm function.1~30channel voice optional, 16-time slot  signaling and CAS ( channel-associated signaling) can communicate with each other. The working is reliable, stable, and low power consumption, high integration, small size, and easy for installation and maintenance.

● Based on self-copyright IC

● The machine is a single PCB design

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

● CAS 16 time slot signaling can communicate with CAS(channel associated signaling)、E1 digital trunk cards and E1 interface PBX;

● With the Console interface, can set the ABCD code by Console

● 1~30 channels voice access, support caller ID function;

● 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

● The device supports independent SNMP network management(optional)

● 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 2/4line

AD:     0dB

DA:     0dB

Two/Four-line 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)