E1 PCM Multiplexer

Product Advantage

• Modular Design for Flexible Deployment

Supports various pluggable service cards for voice, data, and Ethernet, making expansion and maintenance simple and efficient.

• Multiple Voice Interface Support

Compatible with FXS, FXO, magnet-type phones, and hotline interfaces for legacy and specialized communication needs.

• Supports Both 2-Wire and 4-Wire Audio

Capable of transmitting high-quality audio signals in professional and industrial communication environments.

• Integrated Multi-Service Transmission

Transports RS232 serial data, 10/100M Ethernet, and voice signals simultaneously over E1 lines.

• Caller ID Display

Supports both FSK and DTMF caller ID formats to integrate with standard telecom systems.

• Dual Power Supply for High Reliability

AC 220V and DC -48V options with support for dual power input to ensure uninterrupted operation.

• Comprehensive Status Indication

Equipped with LED indicators and local management ports to facilitate fault detection and network maintenance.

Technical Parameters

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

• Interface Type: BNC / RJ45

FXS/FXO Interface

Impedance:

• FXO: 200Ω + 680Ω || 0.1μF

• FXS: 200Ω + 560Ω || 0.1μF

• Frequency Response: 300–3400 Hz (-0.6 to +3 dB)

• Physical Connector: RJ45

Magneto (Magnetic Ring) 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-duplex / Half-duplex auto-sensing

• Auto-MDI/MDIX: Supports both crossover and straight-through cables

• Transmission Rate: N×64 Kbps (N=1–60)

• Physical Connector: RJ45

Voice Encoding & 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

• Rack-Mountable: 19-inch, 1U heigh

Product Uses

• Military Command & Communication Networks

Used for secure, integrated voice and data communication between field units and command centers.

• Power Grid Dispatch and Monitoring Systems

Deployed in substations and control centers to transmit voice and SCADA data reliably.

• Public Security and Traffic Surveillance

Applied in police communication networks and intelligent traffic systems for real-time voice/data transmission.

• Enterprise Private Networks and Campus Communications

Ideal for industrial parks, factories, and enterprise campuses requiring multi-service access over E1 infrastructure.

FAQ

Q1: How many voice interfaces does the device support?

A1: The device supports multiple FXS, FXO, magnet, or hotline voice interfaces depending on the card configuration. Expansion is flexible.

Q2: Can it transmit Ethernet and data simultaneously?

A2: Yes, the device can transmit Ethernet, RS232 serial data, and voice services concurrently without interference.

Q3: Will configuration settings be lost after power failure?

A3: No. All settings are stored in non-volatile memory, ensuring they are retained even during power outages.

Q4: Is it compatible with E1 equipment from other vendors?

A4: Yes, it complies with ITU-T G.703/G.704 standards and supports interoperability with most mainstream brands.

Q5: What are the power supply options? Can it support dual power input?

A5: The device supports both AC 220V and DC -48V input. Dual power modules are available to ensure redundancy and stability.

Selection Guide