Telephone multiplexer

Overview

1/2/4/8/16/32/48/64 Telephone(RJ11) and 2 Physical Isolated 100M Ethernet Optical Multiplexer is a product developed by Beijing Fibridge Co., Ltd. using large-scale integrated circuits with independent intellectual property rights. It applies time-division multiplexing technology to mix and encode Ethernet signals and telephone signals for transmission over a single optical fiber. It enables the mixed transmission of 10/100M Ethernet services and voice channel services, with the transmission channel being optical. This device features a desktop design, high integration, compact size, low power consumption, reliable operation, and convenient installation and use.

feature

1. Provides 1 channel optical port(speed rate 1.25G)

2. Provides 1/2/4/8/16/32/48/64 channels telephone(Optional from Magneto and hotline)

3. Provides 2 channels physical isolated 10/100M Ethernet ports

4. External power supply

5. Single or dua fibers for options. Default is single fiber.

6. Optical transmission distance is SM20km, up to 120km

7. Desktop device.

Technical Specifications

1. Optical port

Wavelength: 1310nm (standard model) or 1550nm  

Transmission Power: ≥ -8dBm  

Receiving Sensitivity: ≤ -26dBm (BER ≤ 10⁻¹¹)  

Connector Type: FC (standard model) or SC, etc.  

Transmission Mode: Dual-fiber or Single-fiber

2. Ethernet port

Supports line speed 10Base-T/100Base-T full/half duplex auto adaptive

Compliant with IEEE802.3/IEEE802.3u standard

RJ45 port

3. Voice Channel Interface and Signaling**

Exchange Side

Off-hook Impedance: < 500Ω

On-hook Impedance: > 10KΩ

User Side

Loop Resistance: ≤ 2000Ω (including telephone)

Idle Circuit Voltage: ≤ 50V

Loop Current: 25mA

Off-hook Threshold: 8mA

Polarity Reversal Delay: < 50ms

Dialing: Pulse dialing single pulse distortion < 5ms; In-band audio dialing total distortion meets voice interface characteristics

Off-hook Delay: < 100ms

Ringing Current:

Remote (FXS) Ringing Current Generator

Frequency: 25 Hz ± 3 Hz

Amplitude: 75V ± 5Vrms

Ringing Current Delay: < 50ms

Total Output Power: ≤ 10W (per chassis)

Local (FXO) Ringing Current Detection

Amplitude Range: Minimum 38Vrms

Voice Interface

Impedance: 600Ω or three-element compound impedance

Audio Frequency Range: 300-3400 Hz

Coding Law: CCITT Recommendation G.711 A-law

4. Power consumption

Whole device power consumption: <15W

5. Working Environment

Operating Temperature: 0～45℃  

Relative Humidity: ≤95% (at 25℃)  

Specifications