11th Floor, Chuangbo Industrial Park, 177 Tianchen Road, High-tech Zone, Jinan City, Shandong Province, China
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As a premier manufacturer and supplier of telecommunication infrastructure, we engineer the E1 PCM Multiplexer to deliver uncompromising data and voice integration. Designed for demanding enterprise networks and industrial applications, this robust unit streamlines complex communication architectures over standard E1 lines, ensuring seamless connectivity for large-scale deployments.
Modular plug-and-play architecture for effortless expansion
Simultaneous transmission of voice, Ethernet, and RS232 data
Dual-redundant power supplies for uninterrupted operation
Comprehensive compatibility with legacy and modern telecom standards
| Category | Specification Details |
|---|---|
| E1 Interface | Line Coding: HDB3 Line Rate: 2.048 Mbps ±50 ppm Impedance: 75Ω (Unbalanced) / 120Ω (Balanced) Physical Connector: BNC (75Ω) / RJ45 (120Ω) Compliance Standards: ITU-T G.703, G.704 Jitter Performance: Meets G.704 & G.823 |
| FXS/FXO Interface | FXO Impedance: 200Ω + 680Ω || 0.1μF FXS Impedance: 200Ω + 560Ω || 0.1μF Frequency Response: 300–3400 Hz (-0.6 to +3 dB) Physical Connector: RJ45 |
| Magneto Interface | Frequency Response: 300–3400 Hz (-0.6 to +3 dB) Ring Signal: 75V (55–90V), 25Hz (20–30Hz) |
| RS232 Interface | Data Rate: 300–19,200 bps Physical Connector: RJ45 |
| Ethernet Interface | Standards: IEEE 802.3 / 802.3u Speed & Duplex: 10/100 Mbps auto-negotiation, Full/Half-duplex auto-sensing Auto-MDI/MDIX: Supported Transmission Rate: N×64 Kbps (N=1–60) Physical Connector: RJ45 |
| Voice Encoding & Signaling | Signaling: 16-slot signaling (ITU-T G.732 compliant) PCM Encoding: A-law, 64 Kbps per channel (ITU-T G.711 compliant) |
| Power Supply | Dual Input Options: -48V DC (-36V to -72V) / 220V AC (165V–265V) Power Consumption: <30W |
| Mechanical Structure | Form Factor: Rack-Mountable 19-inch, 1U height |
| Model | E1 Interface | Ethernet Interface | Telephone Interface | Other Interfaces | Power Supply & Form Factor |
|---|---|---|---|---|---|
| PCM-30B | 1 Port | None | Supports 30 Ports, FXS/FXO, Magnetic, Hotline, etc., Supports 2-wire/4-wire Audio | Supports RS232 Asynchronous Data | AC/DC/Dual Power, 19-inch 1U/19-inch 6U Card |
| PCM-8T | 1 Port | 2 Ports, Switched, Supports VLAN | Supports 8 Ports, FXS/FXO, Magnetic, Hotline, etc., Supports 2-wire/4-wire Audio | Supports RS232 Asynchronous Data | AC, Desktop/19-inch 4U Card |
| PCM-SV24 | 1 Port | 1 Port | Supports 8 Ports, FXS/FXO, Magnetic, Hotline, etc., Supports 2-wire/4-wire Audio | Supports RS232 Asynchronous Data, Supports Synchronous V.24 Data, Supports Serial Port Network Management | AC/DC/Dual Power, 19-inch 1U |
Our E1 PCM Multiplexer is engineered to overcome the most demanding telecommunication hurdles, transforming standard E1 lines into versatile, multi-service highways. By focusing on adaptability and resilience, this equipment ensures that your infrastructure is prepared for both current operational demands and future technological shifts.
Exceptional Audio Fidelity: Capable of transmitting high-quality audio signals across both 2-wire and 4-wire setups, ensuring crystal-clear communication in noisy industrial environments.
Comprehensive Caller ID Integration: Fully supports both FSK and DTMF caller ID formats, allowing seamless integration with standard and proprietary telecom systems without signal degradation.
Intelligent Fault Detection: Equipped with an intuitive array of LED indicators and dedicated local management ports, enabling technicians to visually diagnose network status instantly and expedite maintenance routines.
Versatile Interface Compatibility: Masterfully handles FXS, FXO, magnet-type phones, and hotline interfaces, making it the ultimate solution for bridging legacy hardware with modern network topologies.
Understanding the complex requirements of enterprise-grade procurement, this multiplexer has been developed with six critical operational dimensions in mind. These elements ensure that the device not only performs flawlessly upon installation but continues to deliver value throughout its extensive lifecycle.
Multi-Service Integration & Compatibility: This unit excels in comprehensive load-bearing capabilities. It transmits voice, 10/100M Ethernet, and RS232/RS485 serial data simultaneously over a single E1 line without cross-channel interference. Strict adherence to ITU-T G.703/G.704 standards guarantees absolute interoperability with mainstream telecom equipment worldwide.
Capacity & Modular Scalability: Designed with a highly flexible modular architecture, the system supports effortless scaling. Whether a project requires a single channel or a smooth expansion up to 60 voice channels, the hot-pluggable service cards allow network architects to expand capacity without overhauling the entire infrastructure, optimizing long-term capital expenditure.
System Reliability & Redundancy: Built for industrial and carrier-grade applications where downtime is catastrophic. It features a robust dual power supply mechanism (AC 220V and DC -48V) and non-volatile memory that retains all configuration settings during power outages. This ensures a 7x24 hour continuous operation matrix.
Voice Quality & Signaling Support: Delivering professional-grade, high-fidelity voice transmission, the multiplexer utilizes A-law 64Kbps PCM encoding compliant with G.711 standards. The 16-slot signaling ensures rapid call setup and teardown, meeting the strict requirements of professional dispatch and emergency response systems.
Network Management & Diagnostics: Easing the burden on engineering teams, the device offers streamlined diagnostic capabilities. The combination of local management ports and comprehensive status LEDs allows for rapid fault isolation, significantly reducing Mean Time To Repair (MTTR) and lowering overall operational costs.
Application Scenario Suitability: Field-proven in the most unforgiving environments. It is the backbone for military command networks requiring secure communication, power grid SCADA telemetry, public security traffic surveillance, and sprawling industrial campus networks demanding unified multi-service access.
Selecting the right manufacturer for critical communication infrastructure is a decision that impacts the operational integrity of your entire organization. We bring decades of specialized engineering expertise to the table, ensuring that every multiplexer rolling off our assembly line meets the highest echelons of global quality standards.
Stringent Quality Assurance: Every unit undergoes rigorous thermal, vibration, and signal integrity testing before dispatch, guaranteeing zero out-of-box failures.
Engineering Excellence: Our research and development teams focus heavily on optimizing the internal circuitry for lower heat generation and higher data throughput, extending the physical lifespan of the hardware.
Supply Chain Stability: As a direct manufacturer, we maintain deep inventory reserves of critical components, ensuring rapid fulfillment for large-scale enterprise deployments and time-sensitive infrastructure projects.
Dedicated Technical Support: We provide comprehensive architectural guidance and post-installation troubleshooting, ensuring your engineering teams have the expert backing they need for complex network integrations.
Q1: How many voice interfaces does the device support, and is it easily expandable?
The device features a highly adaptable modular design that supports a wide range of voice interfaces, including FXS, FXO, magneto, and hotline connections. Depending on the specific chassis and card configuration chosen (such as the PCM-30B or PCM-8T), it can seamlessly scale from a few ports up to 30 or more, allowing for flexible expansion as your network requirements grow.
Q2: Can the multiplexer transmit Ethernet and serial data simultaneously without signal degradation?
Absolutely. The core processor is specifically engineered to multiplex 10/100M Ethernet, RS232 serial data, and voice services concurrently over a single E1 line. Advanced time-division multiplexing ensures strict bandwidth allocation, meaning heavy data traffic will never interfere with voice clarity or serial command execution.
Q3: In the event of a sudden facility power failure, will the device lose its configuration settings?
No. We have integrated premium non-volatile memory into the motherboard. This ensures that all routing, signaling, and interface configurations are permanently saved. Upon power restoration, the multiplexer reboots and resumes normal operation instantly without requiring any manual reconfiguration.
Q4: Is this equipment fully interoperable with E1 infrastructure from other global vendors?
Yes, interoperability is a foundational design principle of this device. It strictly complies with international ITU-T G.703 and G.704 standards for E1 transmission, as well as G.711 and G.732 for voice encoding. This guarantees seamless handshakes and data exchange with legacy and modern equipment from all mainstream telecom brands.
Q5: What are the power supply specifications, and does it support redundant failover?
The multiplexer is designed with mission-critical reliability in mind, supporting both AC 220V (165V–265V) and DC -48V (-36V to -72V) inputs. It features a dual power input architecture, allowing you to connect two independent power sources simultaneously. If one source fails, the system automatically and instantaneously switches to the secondary supply with zero interruption to the data flow.
