16/24/32/64 channels, please seach eBay item number:195075484705

Feature:

1.      Extend PCM telephones and Network through a fiber optic cable to remote end, Support 1-64 channels of independent telephone with RJ11 port and one Fast Ethernet (10/100 Mbit/s) RJ45 port over a fiber cable.

2.      Suitable for universal singlemode fiber and multimode fiber, Long transmission distance up to 20 km(12miles) over singlemode fiber and up to 500m(0.31miles) over multimode fiber.

3.      No Delay Transmission and Support Protocol: Unlike VoIP products - the extenders transmit signals directly over Optical fiber cables, thus offering NO DELAYS, plus support for fax & legacy applications that is not supported by VoIP lines.

4.      SC connector for fiber optical port, RJ-11 connector for telephone ports and RJ-45 for Ethernet. LEDs for power supply and optical fiber link, data status indication can monitor the operating status of the system.

5.    Support Caller ID, Ring, Fax.

6.     Simple to Install, Plug and Play

RJ11 Phone port specifications:

1.Voice coding: PCM coding, 64Kbps per voice

2.Crosstalk attenuation: ≥65dB

3.Balanced noise: ≤63.7dBmop

4.Insertion loss: -3 ± 0.75dB

5.Frequency characteristics: 300 to 3400 Hz (-0.6 to +3 dB)

6.Relay port (FXO): connected to the switch

7.Two-wire AC input impedance: 200+680//0.1 Ω (three components)

8.Ringing voltage: 35 ~ 150V

9.Ringing frequency: 17~60HZ

10.Return loss: 20 db

11.User Interface (FXS): Connect to the user's telephone

12.Two-wire AC input impedance: 200+680//0.1 Ω (three components)

13.User line loop resistance: less than 1KΩ (including phone)

14.Ringing voltage peak-to-peak value: 110~150V

15.Ringing frequency: 22~28HZ

16.Feed voltage: 28V

17.Feed current: 20~50mA;

18.Return loss: 20 db

19.Bell flow: AC90 plus or minus 15V

RJ45 Ethernet specifications:

1. Rate: 10/100Mbps, full duplex, half duplex fully adaptive

2. Actual transmission bandwidth: 50Mbps per network port

3. Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN)

4. Support AUTO-MDIX (cross line straight line adaptive)

Power supply:

1. Working voltage AC100-240V, DC5V.

2. External Power supply adapter (1-8 ch),16-64ch is build in power.

Package content:

1x Telephone Transmitter

1x Telephone Receiver

1x FREE 3M SC-SC single-mode fiber patch cord.

2 x power supply adapters  

1 x Manual