KDS-E1O16 is a highly integrated E1 PCM Voice Multiplexer, designed specifically to aggregate 16 telephone channels (FXS/FXO) onto a single E1 digital trunk line for transmission.
The device'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. It is available in flexible desktop and 4U rack-mount card configurations.
KDS-E1O16 is widely used by enterprises leasing E1 lines, helping customers flexibly provision multiple voice services on their existing E1 links to achieve low-cost or even free voice communication between headquarters and branch offices.
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16-port FXS/FXO PCM Multiplexer
This E1 Multiplexer (KDS-E1O16) provides 1 to 16 telephone lines (channels). It is available in desktop, 19-inch 1U, and 4U rack-mount card configurations, supporting SNMP network management. The unit is designed for reliable and stable operation, featuring low power consumption, high integration, compact size, and ease of installation and maintenance.
1. Utilizes proprietary intellectual property (IP) high-performance integrated circuits to ensure stable and reliable equipment operation.
2. The E1 interface fully complies with ITU-T G.703 recommendations and features built-in all-digital clock recovery and smooth phase-locked loop (PLL) technology.
3. Provides 16 voice channels, with full-channel support for Caller ID and Reverse Polarity Billing functions.
4. Flexible support for FXO (for interfacing with PBX/CO switches) and FXS (for connecting user telephones) interfaces, with an option for EM2/4 audio interfaces.
5. The 4U rack configuration supports SNMP Network Management functionality for centralized monitoring and configuration.
6. Supports far-end (remote) alarm status monitoring and automatic routing for inter-site dialing.
7. Equipped with intelligent fault diagnosis, capable of precisely distinguishing whether E1 signal loss is caused by far-end device shutdown or line failure (E1 link discontinuity).
8. All telephone interfaces include built-in high-standard lightning protection, meeting the GB/T17626.5 (6KV) standard for effective equipment safety.
9. Offers multiple power supply options, including AC220V, DC-48V, and DC24V, to adapt to different equipment room power environments.
◆ 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 | ≤5 W |
| Dimensions/Form Factor | 216(L)×140(W)×41(H) mm (Desktop Type) |
◆ 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 |
