30 Channel Voice over Fiber Multiplexer

This is a desk-top PCM multiplexer which provides 30 channel FXO/FXS telephone, supports 6U rack plug-in, and 6U rack equipment with SNMP network management.

● Based on self-copyright IC

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

● 1~30channelVoice access supports caller ID feature and reverses polarity billing functions

● Support various sites’ mutual number allocation function

● The transmission distance is up to 2-120Km without interruption

● The 4 U rack plug-in can be offered and support the SNMP

● telephone interface with lightning protection, lightning reached IEC61000-4-5 Short circuit current wave 8 / 20μs,the peak output voltage 6KV open standards;

• Fiber

Optical port：1 or 2

Optical Fiber： Single/Dual fiber

Fiber interface： FC/SC/ST/LC(SFP)

Wavelength：850nm/1310nm Multimode；1310nm/1550nm Single mode

Relay-free transmission distance: 20~120Km

Typical transmit power:

Single mode1310/1550nm：≥-9dB

Multimode850nm：-18dBm

Multimode1310nm: -25dBm

Receive sensitivity range：-28dBm~- 40dBm

Physical Interface: RJ45 Support Auto-MDIX

• 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: -3.5dB

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)