KDS-2E1P60 is a specialized point-to-point E1 Transmission Equipment developed by our company, based on independently researched Ultra Large Scale Integrated Circuits.

KDS-2E1P60 is a 1U 19-inch rack-mount unit, providing 60 telephone channels (FXS/FXO) and 2 E1 transmission interfaces, offering extremely flexible application configuration.

KDS-2E1P60's core circuitry employs a full digital design, ensuring reliable and stable operation. It features high integration, low power consumption, and is easy to install and maintain.

1. Utilizes proprietary intellectual property (IP) high-performance integrated circuits to ensure stable and reliable equipment operation.
2. 19-inch 1U height effectively saves user cabinet space.
3. 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.
4. Provides 2 E1 transmission interfaces and 60 voice channels.
5. Flexible support for multiple voice interfaces, including FXO (for interfacing with PBX/CO switches), FXS (for connecting user telephones), 2-Wire Audio interface, and Magneto interface.
6. Core Service Functionality: Full-channel support for Caller ID, Reverse Polarity Billing, and Fax functionality.
7. Supports automatic routing for inter-site dialing.
8. Power Redundancy Design: Offers multiple power supply options, including AC220V, DC-48V, and DC+24V, and supports dual power backup modes such as AC+DC, AC+AC, and DC+DC.
9. Telephone interfaces include built-in high-standard lightning protection, meeting the GB/T17626.5 (6KV) standard for effective equipment safety.
10. The unit is characterized by high reliability, low power consumption, high integration, and ease of installation and maintenance.

◆ 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

◆ E&M 2/4 Wire Audio Interface

E&M Type	TYPE V
E-Wire Max Current	22 mA; Saturation Voltage: 3 V
M-Wire Constant Current	7 mA; Min Detection Current: 5 mA
A/D Gain	0 dB
D/A Gain	0 dB
2/4 Wire Input Impedance	600Ω

◆ Magneto Telephone 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

≤20 W

Dimensions/Form Factor

485(L)×200(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

60 port fxs/fxo over e1 pcm multiplexer

Product Categories

60-port FXS/FXO over 2*E1 PCM Multiplexer

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