30 ports FXO/FXS over fiber PCM Multiplexer

30 ports FXO/FXS over fiber PCM Multiplexer

30*FXO/FXS over fiber PCM multiplexer

2-wire or 4-wire E&M over fiber optical multiplexer

E1 4*RS232 4*ethernet pcm equipment,voice over fiber device

  • Description
  • Inquiry

30*FXO/FXS or E&M 4*RS232 4*ethernet over fiber PCM multiplexer:PCM-F30


PCM multiplexer Product Description

PCM-F30 is a kind of point-to-point fiber transmission PCM multiplexer that developed based on special large scale integrated circuits.

It is with perfect alarm function, and has an alternative of 30 channels phones and 1~4 98M linear Ethernet ports (optional), 1~4 serial data (optional).

It can realize SNMP management on stand-alone device via built-in SNMP module (optional). The electric parts are all digital with small volume, high reliability, convenient for maintenance.



  • Based on IC of independent intellectual property rights;
  • Adopt veneer structure;
  • Can control the remote alarm status;
  • Can control the remote alarm status;
  • E1 is conformed to G.703, adopts full digital clock recovery and smooth phase lock technology;
  • Offer 2 extended ports for 1~4 asynchronous data, such as RS232/ RS485/RS422/Manchester; (optioanl)
  • Ethernet is 10M/100M,full/half duplex adaptive, support VLAN;(optioanl)
  • ETH support Auto-MDIX;
  • 1-30 channels phone, support call indication;
  • Audio ports support FXO and FXS,FXO connected with switches,FXS with users’ phone;
  • Support SNMP management; (optioanl)
  • Can distinguish the opposite device is shut down or fiber not connected well when testing lost optical signal;
  • User can become conscious of the temperature and voltage of the local device in network management stage;
  • User can also become conscious of the temperature and voltage of the remote device in SNMP managing interface, and can set the alarm threshold of the remote device’s temperature; (optioanl)
  • Power supply:AC220V、DC-48V/DC24V etc;
  • More than 2~120km no relay transmission distance;

Fiber interface

Offer one optical interface,FC、SC for option;

“TX” is for optical signal output

“RX” is for optical signal inp

Ethernet port

PCM-F30 PCM multiplexer offers 1-4 100M linear Ethernet,10/100M、full/half duplex adaptive,support VLAN,and can auto learn the MAC address from the LAN connected with it,

and transfer the destination address as the frame of another LAN. Transparent to TCP/IP,

and provide safe, seamless connection between different interfaces. Widely used to network and monitor in WAN and LAN.

4 Ethernet ports:

  • 1 2 3 4 — totally 4 10/100Base-T ports on the front panel,RJ45,support AUTO-MDIX;
  • 4 Ethernet ports can be exchangeable,or set VLAN
  • LNK: link/data indication,on denotes connection well,wink is of data flow;
  • SPD:10/100M,on is

 SNMP network management(optional)

 PCM-F30 support independent SNMP network management(SNMP on the front panel,10/100M、full/half duplex adaptive),and the manage host can manage any local device with SNMP connected with IP MAN, and support across gateway communication. Also can one device with SNMP module, the other 2~16 with SNMP cascading module realizes centralized management.

  • Standard SNMP network management protocol, fully support MIB library;
  • SNMP support V1、V2、V3,and protocol encryption;
  • The monitored device number is determined by IP resource;
  • Support IE browser to check the settings;
  • Support program upgrading by IE browser;
  • Support TELNET management;
  • Graphic management interface,consistent with real device indication;


  • Support cross gateway communication,network management host can manage serval branch devices;
  • Support the local commanding the remote;
  • Fully display the history and current alarms;

RJ45 interface and its feet sequence:


  • E1 interface

Standard:             conforms to G.703 standard.

Coding:               HDB3

Interface rate:    2.048Mbps±50ppm

Impedance:          75Ω (unbalanced)/120Ω(balanced)

Connector:           BNC (75Ω), RJ45(120Ω)

Jitter Performance: according to G.742 and G.823

Allowed attenuation:0~6dBm

  • Fiber Interface

Wavelength:                  Single mode 1310nm/1550nm

Multiple mode 850nm/1310nm

Fiber core NO.:          Double core or single core for option

Sending consumption:  -9dBm/-5dBm

Transmitting range:       0-50km/120km

Receiving sensitivity:       ≤-36dBm (BER<10-11)

Optical code:           scrambling NRZ code

Connector:           SC/FC/ST

  • 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)

Wastage:                   40db


  • Magnet call phone port


Ring detecting voltage: 90V

2 line input impedance: 600Ω(hanging off)

Wastage:            40 dB

Balance degree:       70 dB




483(W)´ 252(L)´  44(H)mm


Power supply

DC power supply:DC-48V,error range -36V~-72V;

DC power supply:DC-24V,error range -18V~-36V;

AC power supply:AC220V±20%,50HZ

Operation Condition

Operating temperature:       0°C~50°C

Storing temperature:        -40°C~+70°C

Relative humidity::         95 %

Without disturbance of erosive and solvent gas, raising dust or strong magnetic field.




PCM-30 PCM multiplexer

PCM-30 PCM multiplexer










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