Analog Phone over Fiber, Pots line over Ethernet

Description

F-4TEL RJ11 to Fiber Optic Telephone Media Converter

The F-4TEL is used to carry four phone lines over fiber optic cable. Telephone over Fiber applications offer a secure connection that is impossible to bug. The PSTN two-wire POTS telephone port can be configured either as an FXO (PBX trunk) or FXS (telephone set/fax machine/dial-up modem) device with a simple DIP switch setting. Using a pair of these devices, four independent telephone lines can be extended over a fiber link. The F-4TEL provides full support for features like caller ID. The converter can be used in service mode, allowing the connection of 2 telephone sets. The unit offers SNMP, allowing remote management and monitoring of converter status, type, version, fiber link status, RJ11 port status, and alarms. The F-4TEL is a simple and reliable solution for data carriers and service providers for Telephone over Fiber links.

Features

- Extend telephone voice transmission from 2km to 120km over fiber
- Network management via terminal, web, or SNMP
- Supports telephone voice transmission
- Supports caller ID pass-through

- The Tx (transmitter) connects to FXS (telephone set/fax machine/dial-up modem)

- The RX (receiver) connects to FXO (PBX trunk)

Drawings

Model Selection

Model Number	Description
F-4TEL (TX+ RX kit - F-4TEL-TX/RX)	4 CH Telephone FXO/FXS Singlemode Fiber Transmitter and Reciever for 20km • The Tx Transmitter) connects to FXS (telephone set/fax machine/dial-up modem) • The RX (receiver) connects to FXO (PBX trunk)
F-4TEL-Tx/RX-40	4 CH Telephone FXO/FXS Singlemode Fiber Transmitter for 40km (please call 800-521-8467 ext 1)
F-4TEL-Tx/Rx-80	4 CH Telephone FXO/FXS Singlemode Fiber Transmitter and Receiver kit for 80km (please call 800-521-8467 ext 1)
F-4TEL-Tx/Rx120	4 CH Telephone FXO/FXS Singlemode Fiber Transmitter and receiver kit for 120km (please call 800-521-8467 ext 1)

Accessories & Upgrades

Specification

*All Specifications Subject to Change Without Notice
Optical Interface:
Connector	ST/PC
Cable Length	MM 2km, SM 15/30/50/80/120km, WDM 20/40/60/80km
Wavelength	MM 1310nm, SM 1310, 1550nm, WDM 1310Tx/1550Rx, 1550Tx/1310Rx
Electrical Interface
Connector	RJ-11
FXO Mode	600 ohms, Coding : 16 bits linear, Loop Current : 10~100mA Ring Frequency : Acceptable 20 ~50Hz, Insertion Loss: 0.0 +/- 1.0dB at 1000Hz
FXS Mode	Impedance : 600 ohms, Coding : 16 bits linear, Dial: DTMF and Dial Pulse, Battery Source: 48VDC +/- 4
Ringing Waveform	Sine Wave
Ringing Frequency	20/25/30/50 Hz selectable
Ring Cadence	FXS to FXS : On / 1 sec, Off / 2 sec
FXO to FXS	Reproduces the cadence detected by FXO. Insertion Loss 0.0 +/- 1.0dB at 1000Hz REN: 4.0B (Ring Equivalence Number)
LED Indicators	Power, FX Link, Phone Act, Test
Power Requirements	DC IN 12V
Power Consumption	5 W
Temperature	0~50 deg C (Operating) 0~70 deg C (Storage)
Certifications	CE, FCC, LVD, RoHS
MTBF	125,000 h (25 deg C)
Size / Weight	WEIGHT: 1.6 lb BOX SIZE (IN): 11 x 8.75 x 2.25 in BOX SIZE (MM): 280 x 223 x 58 mm UNIT SIZE (IN): 5 x 4.25 x 1.25 in UNIT SIZE (MM): 127 x 108 x 32 mm

Question and Answers

Question:
Do I need an FXO fiber converter? Does it support fax? I have an analog phone, but I want to install it far away from me, about 8 km, and I also need fax support. I have only a single-mode dual-fiber connection. Is there no need for a dual line? Do you have 2, 4, and 8 port converters? OK, please send me a quotation for a 2 port device?

Answer:
Yes, but it works only with analog lines, not a digital phone system. OK, it will work. We need only one fiber. We use WDM multiplexing: 1310nm one way and 1550nm return, so we multiplex both directions on 1 fiber. The standard unit supports 20Km of single-mode fiber. What connectors do you have? Yes, we have 2, 4, 16, and 32 phone ports available.

Question:
Good morning, we have a central facility that needs to distribute to several buildings. I am wondering if it is possible to use a F-8TEL-TX in the central building with a F-1TEL-RX in the other buildings. This would really help us save space in the central facility. If this is not possible, do you have any suggestions? Thanks for your assistance.

Answer:

Unfortunately, that is not possible because of the multiplexing the technology they utilize. Because those units require bidirectional communication, they are sold in sets; since they are sold in sets you can not mix and match them. Since they are bidirectional units you can't use them with a correlating splitter either. So essentially you need to put a transmitter and receiver in every the location that you require them in. If you have 8 locations, you could use 8 F-1TEL-TX/RX kits or 8 F-2TEL-TX/TX kits https://thorbroadcast.com/product/1-or-2-telephone-line-over-fiber.html