
Extend POTS Telephone Service Over Singlemode Fiber
The PK8S-RM POTS-to-fiber converter installation kit provides a practical solution for extending analog telephone communications over long-distance singlemode fiber. The system connects POTS telephone equipment across a fiber optic link, allowing telephone service to be extended well beyond the normal limitations of copper cabling.
The PK8S-RM is designed for singlemode duplex fiber transmission up to 20 km, using the appropriate length of fiber optic cable.
FXO and FXS POTS Connectivity
The PK8S-RM uses an FXO/FXS configuration for connecting POTS telephone equipment across the fiber link.
- FXO: Exchange/PBX side
- FXS: Subscriber/telephone side
- Function: POTS
- Fiber: Singlemode
- Fiber configuration: Duplex
The selector guide specifies one FXO and one FXS interface for the PK8S-RM.
Long-Distance Singlemode Fiber Transmission
Singlemode fiber makes the PK8S-RM suitable for longer-distance POTS communications. The model is specified for a distance capability of up to 20 km over singlemode duplex fiber when the appropriate fiber optic cable is used.
All VERSITRON units in this POTS converter family use LC optical connectors.
Rack-Mount POTS Fiber Installation
The PK8S-RM is specifically designed for rack-mount installation. The selector guide notes that -RM models indicate rack-mount versions, and rack-mount kits include a 2-slot chassis and one standalone enclosure.
For standalone installations, the corresponding PK8S model provides the same POTS, singlemode duplex, and 20 km configuration.
POTS to Fiber Applications
The PK8S-RM can be used for:
- PBX-to-remote telephone connections
- Building-to-building telephone links
- Long-distance POTS extensions
- Remote subscriber connections
- Commercial and industrial facilities
- Campus communications
- Fiber-based telephone infrastructure
Technical Specifications
| Specification | PK8S-RM |
|---|---|
| Function | POTS |
| FXO | 1 |
| FXS | 1 |
| Fiber Type | Singlemode |
| Fiber Configuration | Duplex |
| Maximum Distance | 20 km |
| Installation | Rack-Mount |
| Optical Connector | LC |
These specifications are based on the VERSITRON 8-Channel POTS 2-Wire FXO/FXS to Fiber Converter Installation Kits Selector Guide.
Why Choose the VERSITRON PK8S-RM?
The PK8S-RM combines POTS telephone connectivity, FXO/FXS interfaces, long-distance singlemode fiber transmission, and rack-mount installation in a complete fiber optic telephone solution. Its 20 km transmission capability makes it suitable for extending analog telephone service between locations over existing or newly installed singlemode fiber.
VERSITRON — Safeguarding Communications Since 1958
VERSITRON has been providing fiber optic communication solutions since 1958. Our product portfolio includes fiber optic solutions for voice, video, data, and network communications.
For assistance selecting the appropriate POTS-to-fiber converter, fiber type, or installation configuration, contact VERSITRON for technical support and application guidance.
Power Requirements
12VDC, 2.0Amp
Connector (Tip & Ring)
RJ-11, 2-Wire Twisted Pair
Installation
Rackmount (2-slot 19" rack)
Fiber Interface Connector
LC
Fiber Cable
Singlemode: 9/125 (Duplex)
Link Margin
Singlemode: 19dBm
Audio Signal
Analog, 300Hz to 3.4KHz
Idle Channel Noise
-65dBm
Single Frequency Distortion
-46dBm
2nd Harmonic Distortion
-55dBm
Talk Battery
44 to 52VDC
Loop Current
40mA max. (off hook)
Ring Signal
92V peak (max), 15 to 67Hz
Line Impedance
600Ω
Operating Temperature
0° to 50°C (32° to 122°F)
Storage Temperature
-40° to 70°C (-40° to 158°F)
Humidity
Up to 95% relative humidity (non-condensing)
Altitude
Up to 10,000 ft
Each Kit Includes:
- FXO Unit
- FXS Unit
- External Power Supplies (90-240VAC)
- 100 Meters (328 ft) of Singlemode Cable - Duplex
As a complete package, you get everything you need in a plug & play solution for your phone-to-fiber requirements and you receive a Lifetime Warranty from a trusted manufacturer since 1958! Contact us for assistance by calling (1-800-537-2296) or opening a chat. We are here to help!
Additional Installation Kits Are Available For:
- RJ11
- 600 Ohms Impedance
- LED Indicators
- SFP Module Technology
- 300Hz to 3.4KHz
-
Rackmount Options Manuals for 2-Wire Products
(See Bottom of Page)
8 Channel POTS to Fiber Rackmount Kit is used across the following Industries:
Healthcare
- Hospital telecom and server rooms
- Campus-wide emergency call systems
- Nurse station analog phone extensions
- Legacy intercom systems over fiber
- Multi-building healthcare connectivity
Government & Public Sector
- City halls and municipal buildings
- Secure departmental voice communications
- Courthouse phone infrastructure
- Public utility control centers
- Remote office voice line extensions
Military & Defense
- Base command centers
- Hardened communication shelters
- Field operation phone connectivity
- Secured analog communications in bunkers
- PBX extension to remote locations
Enterprise & Campus Networks
- Telecom rooms and server centers
- Inter-building analog voice connectivity
- Executive office redundancy links
- Paging and hotline systems
- Security checkpoint phones
Public Safety & Emergency Services
- Fire station ring-down phones
- Dispatch-to-outpost analog links
- Police building voice extensions
- Emergency call box connectivity
- Redundant analog lines at EOCs
Industrial & Utilities
- Control room analog phone access
- Substation voice communications
- Plant floor analog links
- Long-distance communications in high-EMI zones
- Hazardous location communications
Transportation & Transit
- Subway control centers
- Rail yard phone connectivity
- Maintenance depot communications
- Station intercom backhaul
- Crossing and switch station communications
Ports & Marine
- Harbor master communication centers
- Dockside voice line extensions
- Terminal control rooms
- Security checkpoint phones
- Fiber-based ship communication links
Education
- School campus interconnects
- Dormitory emergency phones
- Legacy intercom backhaul
- Campus security office analog lines
- PA systems converted to fiber transport
Banking & Financial
- Inter-branch telecom integration
- Backup lines for teller stations
- Secure vault area voice links
- Data center telephony extensions
Construction & Infrastructure
- Temporary jobsite command trailers
- Long tunnel and bridge phone systems
- Remote monitoring station communications
- Fiber-to-analog conversion at equipment centers
Smart Cities
- Roadside emergency phones
- Traffic control voice endpoints
- Utility pole analog communication boxes
- Public announcement systems
- Citywide fiber-connected safety phones
Telecom & System Integrators
- Rack-based PBX deployments
- Multi-channel voice over fiber transport
- Analog bridging in WAN environments
- Municipal telecom integrations
- Legacy-to-modern network migrations
Research & Labs
- Lab-to-lab secure voice links
- Cleanroom analog phone extensions
- Facility-wide emergency communications
- EMI-protected voice systems
Hospitality & Property Management
- Inter-building hotel phone systems
- Elevator and service area voice lines
- Parking garage emergency phones
- Maintenance office analog extensions
- PBX extension over fiber for resorts
Versitron is one of the leading 8 Channel POTS to Fiber Rackmount Kit manufacturing companies in the USA (based in Delaware). If your industry or installation location isn't listed above, feel free to reach out to us!
Buy the Best 8 Channel POTS to Fiber Rackmount Kit from VERSITRON at a Competitive Price!!
Why Choose Us
Technical Support
Life Time Warranty
NDAA / TAA Compliant
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