Skype ID:cenny.xu


  • To Talk
  • cenny.xu-Click To Talk

PCM-E08: Eight ports voice FXO/FXS E&M to E1 PCM multiplexer

8 ports FXO/FXS to E1 PCM Multiplexer

8 ports E&M over E1 PCM Multiplexer

8 voice 4 RS232 to E1 PCM Multiplexer

More details

8 FXO/FXS E&M to E1 PCM multiplexer:PCM-E08

PCM-E08 provides  conversion  between  ITU-T  G.703  standard  E1 framed interface and 10/100Mbase-T Ethernet interface, and provide 1-8 voice  through E1 channel, realizing the long-distance extend of telephone line through E1 channel. It also  provides one RS232 data channel. E1 signal can transmit through fiber optic multiplexer, connecting the two local networks into two parts of one network. It is a high-performance, multi-type long-range Ethernet bridge. Its small size, low cost and very appropriate to the cost-sensitive bridging applications, or as spaces become an extension of the LAN infrastructure, devices or above  devices.  It  can  study  the  MAC  addresses  of  the  LAN  that connected incessantly, automatically; also can transmit aim address as frames of another LAN. Be transparency to TCP/IP protocol, providing safe, seamless connectivity for different devices in the network. E1-10/100BT  interface  converters  widely  used  for  LAN  and  Wan networking,  control,  and  so  on,  and  particularly  applicable  to  the network users to the network  users with a single E1 channel data and voice access at the same time. RS232 asynchronous transmission rate is 300-115.200 kbps self-adapt.


01.Realize  long-distance  monitoring  of  local  device  to  the  remote device based on self-copyright IC
02.Provides 4 channels Ethernet connectors
03.10M/100M ,4 Ethernet nterfaces, 10M/100M, full half duplex self adapt, support VLAN
04.The  Ethernet  interface  supports  AUTO-MDIX  (cross  over  and straight through self adapt)
05.Ethernet  interfaces  support  channel  separate  function,  can  set VLAN based on TAG
06.Provide two clock types: E1 master clock, E1 line clock;
07.Provides 3 kinds of loop-return function, namely E1 self-looping at local end, Ethernet self-looping at local end, ordered to self-loop at remote end;
08.Realize the automatically rate set of local device to remote device
09.Have the function of pseudo-random code testing, convenient for opening of the circuit, and can be used as an error code instrument;
10.Ethernet supports rate of N*64k (N=1-32), which can be regulated from 64K to 1098K;
11.Supports 75Ω unbalanced and 120Ω balanced impedance at the same time;
12.Various Ethernet data indicate functions, which indicate data transmission status timely;
13.Provides8 voice channels, support calling indication;
14.Voice  connector FXO  (FXS),  FXO connect to PBX and FXS connect to phone;
15.RS232  channel can transfer asynchronous serial data with self-adaptable baud rate of 300 to 115.200


Technical Specification
E1 interface
Standard: conforms to G.703 standard.
Interface rate:N×64Kbps, N:1~32
Impedance:75Ω (unbalance), 120Ω (balance)
Connector: BNC (75Ω), RJ45 (120Ω)
Jitter Performance: according to G.742 and G.823
Clock: internal clock, line clock.


10/100Base-T port
Rate:10M/100M,full/half duplex self adapt
Protocol:support IEEE 802.3,IEEE 802.1Q(VLAN)
MAC address table: 4096 MAC addresses
Ethernet Total Memory Sizes: 64MBits SDRAM
Physical interface:RJ45, support AUTO-MDIX(cross over and straight through self adapt)

FXS Telephone Port
Ring voltage: 75V
Ring frequency:25HZ
2 line input impedance:600Ω (hanging off)
Wastage: 40db


FXO Exchange Port
Ring detecting voltage:35V
Ring detecting frequency:17HZ-60HZ
2 line input impedance: 600Ω (hanging off)

RS232 port
Rate:300-115.2Kbps auto-adaptable(Asynchronous)
Interface characteristic:Satisfies ITU-T V.24 standard


Standalone: 483(width)*138(depth)*44(height)mm


Working Condition
Input voltage:AC180V ~ 260V; DC-48V; DC+24V
Power consumption: ≤5W
Operating temperature:0°C ~ 50°C
Storing temperature:-40°C ~ +70°C
Relative humidity:95 %


Typical Application

8FXO/FXS fiber PCM multiplexer





PDH Multiplexer
SDH Multiplexer
E1 Converter
TDM over IP
PCM Multiplexer
Fiber Media Converter
Fiber Video Converter
fiber module
SFP fiber module
SFP+ fiber module
40G 100G module

PCM multiplexer
fiber Module
SFP+ fiber module
40G module
100G transceiver
fiber to ethernet converter
E3 DS3 to ethernet converter
fiber optical modem
TDM over IP
G.SHDSL modem





Rehabilitation Equipment

Ultra Low Temperature Freezer

Speed Reducer
Telecom Equipment
silicone oil