BH3630-E1 PCM Multiplexer
can be 1 to 30 phones and a Road N * 64K Ethernet signal compositeinto a
standard 2M (E1) channels for transmission。It uses a
dedicated digital multiplexing chip and almost integrate digital logic
function, thus significantly improve product performance and reduce costs. The
device is excellent overall performance, stable and reliable, low power
consumption, high integration, small size, easy installation and maintenance.

BH3630 PCM Multiplexer Technical Parameters：

E1 Interface：
Bit Rate:2.048Mbit/s ±50ppm
Standard:ITU-T G.703、G.704、G.712
Code:HDB3
Jitter characteristics:ITU-T G.823
Impedence:75 ohm（120 ohm Optional）
Physical Connector:NEC（RJ45）

FXO/FXS：
Impedence: 600 ohm
Insertion Loss:-3±0.75dB
Frequency Characteristics:300～ 3400Hz(-0.6～+3dB)
Crosstalk attenuation:≥65dB
Physical Connector :RJ45

Ethernet
Interface ：
Standard:IEEE 802.3/802.3u，IEEE 802.1Q(VLAN)
Rate：
N*64K,Half/ Full duplex adaptive
Support cross-line direct line adaptive
Physical Connector：RJ45

RS232/V.24 Interface ：
electrical specification：CCITT V.28
transmission rate：asynchronous≤19200bps

2/4 wire Audio Interface ：
Impedence：200Ω+680Ω||0.1μF
4 wireAD
gain：14dB(adjustable）
4 wireDA
gain：-2 dB（adjustable）
4 wireAD
frequency characteristics ：-0.2 –
+0.2dB
4 wireDA
frequency characteristics：-0.2 – +0.2dB
2 wireAD
frequency characteristics：-0.2 – +0.2dB
2 wireDA
frequency characteristics：-0.2 – +0.2dB（adjustable）
Return
Loss：40dB
Balance：70dB
common
mode rejection ratio：70dB
power
supply rejection ratio：30dB
Idle
channel noise：≥65dB
Loop
Resistance：600Ω

ower：
Input:AC220V、DC-48V
Power consumption:≦30W