The KDS-E1P08 is a specialized point-to-point E1 Transmission Equipment developed by our company, based on independently researched Ultra Large Scale Integrated Circuits.

This product provides 8 telephone channels (FXS/FXO), offering extremely flexible application configuration.

The device's core circuitry employs a full digital design, ensuring the unit operates with reliability and stability. It features high integration, low power consumption, compact size, and is easy to install and maintain.

1. Core Technology: Utilizes proprietary intellectual property (IP) high-performance integrated circuits.
2. Capacity & Services: Provides 8 voice channels, with full-channel support for Caller ID and Reverse Polarity Billing functionality.
3. Routing & Interoperability: Supports automatic routing for inter-site dialing (mutual number dialing between sites).
4. E1 Interface Standard: The E1 interface fully complies with ITU-T G.703 recommendations, featuring built-in all-digital clock recovery and smooth phase-locked loop (PLL) technology.
5. Voice Interfaces: Supports FXO and FXS interfaces; FXO interfaces connect to PBX, and FXS interfaces connect to user telephones.
6. Intelligent Alarm Detection: Able to detect whether the loss of E1 signal is due to remote equipment power-off or an E1 line fault, with LED indicators for alarm status.
7. Multiple Power Options: Offers various power supply modes, including AC220V, DC-48V, or DC+24V.
8. Power Polarity Protection: DC-48V/DC+24V power supplies feature automatic polarity detection, eliminating the need to distinguish polarity during installation.

◆ E1 Interface

Standard Compliance	Compliant with G.703 Recommendation
Rate	2048 Kb ± 50 ppm
Code Type	HDB3
Impedance	Unbalanced 75 Ω/ Balanced 120 Ω (Unbalanced interface requires coaxial adapter for 75-2/3 coaxial cable)
Jitter Characteristics	Meets G.742, G.823 Recommendations
Input Attenuation	0 dBm ～ 6dBm

◆ FXS Subscriber Interface

Ringing Voltage	75 V
Ringing Frequency	25 Hz
2-Wire Input Impedance	600Ω (Off-hook)
Return Loss	20 dB

◆ FXO Trunk Interface

Ringing Detection Voltage	35 V
Ringing Detection Frequency	17 Hz - 60 Hz
2-Wire Input Impedance	600Ω (Off-hook)
Return Loss	20 dB

◆ Electrical and Mechanical Characteristics

System Power	AC 180 V∼260 V; DC −48 V; DC +24 V
Power Consumption	≤5 W
Dimensions/Form Factor	485(L)×138(W)×45(H) mm (1U 19-inch Rack-mount)

◆ Environmental Index

Operating Temperature	−10∘C∼+60∘C
Storage Temperature	−40∘C∼+85∘C
Operating Humidity	0%∼95% (Non-condensing)
MTBF (Mean Time Between Failures)	>100,000 hours

8 port fxs/fxo pcm multiplexer

Product Categories

8-port FXS/FXO PCM Multiplexer

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