Product Type | Expansion Base |
Form Factor | Desktop Wall-Mountable Base Unit |
Compatibility | EnGenius DuraFon PRO System |
Included Accessories | Rubber antenna, AC power adapter |
Power Requirements | AC Adapter (6.5V DC, 0.65A) |
Mounting Options | Desktop or Wall Mountable |
Product Series | DuraFon PRO |
Model Number | DURAFON PSL-BU |
Weight | Approx. 0.74 lbs (335g) |
ENGENIUS DURAFON PRO Single Line Expansion Base Unit


Key Benefits

AI-Powered Summaries from Online Customer Reviews
Eye-Insights™ are generated by proprietary AI that analyzes real online customer reviews to highlight top pros and key product features. While we aim for accuracy, insights are provided “as-is” and individual results may vary.
- Expandable functionality enhances communication coverage for existing DuraFon PRO systems.
- TAA compliance ensures eligibility for federal and enterprise contracts.
- Includes essential accessories (antenna and adapter) for immediate deployment.
Product Overview
The ENGENIUS DURAFON PRO Single Line Base Unit (Model: DURAFON PSL-BU) is an expansion base designed to extend the range and capacity of existing DuraFon PRO systems. Packaged with a rubber antenna and AC adapter, the unit supports installation into wide-area facilities where mobility is critical. Manufactured in Taiwan and TAA compliant, it fits procurement requirements for government and enterprise operations. The device offers reliable deployment and scalable communication across large facilities, though more detailed technical specs are not available.
Specifications
Product Overview
Wireless Features
Wireless Technology | 900 MHz FHSS |
Frequencies Supported | 902–928 MHz |
Modulation Type | GFSK |
Operating Channels | 128 channels |
TX Power | High power, up to 708 mW |
Antenna Type | Detachable Rubber Duck Antenna |
Compliance & Origin
Country of Origin | Taiwan |
TAA Compliance | Yes |
Certifications | FCC Part 15, FCC Part 68 |
RoHS Compliance | Yes |
Advanced Security Features
Interference Avoidance | Frequency Hopping Spread Spectrum (FHSS) |
Encryption | 72-bit digital security code |
Security Type | Proprietary Security Protocol |
Interfaces
Telephone Interface | 1 x RJ-11 FXO Port |
Antenna Connector Type | Reverse SMA (Female) |
Expansion Capability | Supports up to 4 Base Units per system |
Maximum Handsets per Base | Up to 90 Handsets (with multiple bases) |
Data Rate | Up to 27 kbps (voice) |
Physical & Environmental
Dimensions | 5.125 x 3 x 1.125 in (130 x 76 x 29 mm) |
Operating Temperature | 32°F to 122°F (0°C to 50°C) |
Storage Temperature | -4°F to 140°F (-20°C to 60°C) |
Operating Humidity | 5% to 90% (non-condensing) |
Housing Material | ABS Plastic |
LED Indicators | Power, In-Use |
Cloud Management & Licensing
Cloud Management | |
Licensing Requirements | No licensing required |