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FiberPlex POTS (Plain Old Telephone Service) Fiber converter FOI-2971-S-ST

SKU: 4504 Category:

$1,551.38

Description

Overview

The FOI-2971 provides complete electrical isolation for 2-wire telephone communications. 

The units can be used in areas of high electrical noise or in and out of RF shielded enclosures. The fiber optic cable is not susceptible to interference caused by impulse noise, crosstalk, or EMI. Privacy of communications is also enhanced because the fiber optic cable does not radiate any emissions. FiberPlex recommends “R” units for high security applications because the units have added filtering and shielding for RFI suppression.

In addition, fiber optic cable offers much longer transmission distances than traditional telephone line cord wiring. Multimode optics on the units can extend the distance to 2km, while singlemode optics can further extend the distance to 20km. A typical link consists of an FOI-2971 connected to the POTS line and an FOI-4972 at the subscriber’s phone with a duplex fiber optic cable between them.

Flexible Mounting and Powering Options

The FOI-2971 is a part of the FOI line of products designed for ruggedized mil applications. They are housed in the familiar FOI shielded can enclosure. For standalone applications they can be powered by adding a PSQ-4909 AC supply or a PSQ-4920 DC power supply (not included). Optionally, up to 8 FOI units can be mounted on CMA chassis adapters and installed in an RMC-3101 or RMC-2101 rack mount chassis. The units are powered redundantly by a common back plane connection.

Additional information

Weight 5.00 lbs
Dimensions 5.00 × 5.00 × 5.00 in

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Features

Typical Applications Include:

  • Standard POTS Telephones
  • STU-III and STE Phones
  • Fax Machines
  • Modems

Specifications

ELECTRICAL SPECIFICATIONS
 

Min

Typ

Max

Power Requirement Voltage Range (V)

7

9

12

Supply Current (mA)

525

 
Audio Input Level (dBm)

5

Load Impedance (O)

600

Frequency Response (±3 dB) (Hz)

200

8k

 
Solid State Relay Load Voltage (V)

350

Load Current AC/DC (mA)

120

Load Current DC (mA)

200

On Resistance AC/DC (O)

23

35

On Resistance DC (O)

7

10

 
Environmental Storage Temperature (°C)

-40

85

OperatingTemperature (°C)

0

50

 
Interface Connector RJ-11
PHYSICAL SPECIFICATIONS – FOI-2971
 

Length

Width

Height

Weight
Case Dimensions Size 2

4.5 in (114 mm)

1.312 in (33 mm)

2.562 in (65 mm)

2 lb (0.9 kg)

OPTICAL CHARACTERISTICS – All

Fiber

Size

Max Distance

Wavelength

Output Power

RX Sens Loss Budget

Multimode

62.5 / 125 µm

2 km

820 nm

-18 dBm

-30 dBm 12 dB
Singlemode 9 /125 µm 20 km 1300 nm -15 dBm -32 dBm 17 dB

Ordering Information

Isolator for telephone (POTS), exchange side, Singlemode ST optics, Power Options Sold Separately

 

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