Overview
The 16E1 PDH Optical Multiplexer is a highly integrated, reliable, and compact device developed on our proprietary PDH optical transmission platform. It supports point-to-point optical transmission with specialized VLSI and full SNMP NMS management capability. The device features an intuitive LCD display for real-time monitoring and offers standard 1+1 fiber backup protection to ensure uninterrupted network connection.
- Versatile Interfaces: Provides up to 16 E1 interfaces, 4 10/100M Wire-speed Ethernet interfaces (with support for VLAN switching), and 2 expansion interfaces.
- Data Expansion: The expansion ports are extremely flexible, serving as transmission channels for asynchronous data like RS232, RS485, or RS422.
- Reliable Operation: Includes full alarm functionality, low power consumption, and high integration for long-term stable deployment.
Features
Optical & Transmission Specifications
- High-Speed Transmission: Dual optical ports operating at 155Mbps, supporting long-distance transmission up to 25km, 40km, 60km, 80km, or 120km.
- 1+1 Optical Protection: Dual fiber interfaces configured as Master/Slave for Automatic Protection Switching (APS) to ensure uninterrupted service delivery.
- Advanced Laser Safety: Integrated Automatic Laser Shutdown/Reduction (ALS) function for operational safety.
Interface & Data Capabilities
- 16 E1 Transparent Transmission: Fully compliant with ITU-T G.703, G.823, and G.742 standards, using HDB3 line coding.
- Flexible Ethernet Switch: 4 10/100M Auto-Negotiation Ethernet ports supporting full/half-duplex mode and jumbo frames up to 1,916 bytes.
- VLAN & Bandwidth Control: Ethernet supports 4 distinct VLAN division modes, with bandwidth limit set in increments of 32K.
- Engineering Order-Wire (Optional): Supports a standard 2-wire telephone hotline for field maintenance communication.
Management, Diagnostics & Alarms
- Display & NMS Management: Built-in 16×2 character LCD display and internal SNMP agent for real-time local and remote network management.
- Local Console Interface: Standard RS232 Console port for out-of-band CLI configuration.
- Comprehensive Diagnostic Loopbacks: Supports 2 optical loopback modes and 4 E1 loopback modes for convenient troubleshooting.
- Customizable Alarms: Configurable major and minor alarm thresholds with visual (LCD) and audible (speaker) alerts, alongside remote status monitoring.
Power & Installation Specifications
- Flexible Power Options: Optional AC 220V, DC -48V, or DC +24V power input.
- Polarity Protection: DC -48V / DC +24V inputs feature automatic polarity detection (Polarity-Free) for safe installation.
Parameters
◆ Optical Interface
| Fiber Mode | Multi-mode / Single-mode |
| Multi-mode Distance | 5 km on 62.5/125µm fiber (attenuation ≤ 3 dB/km), Wavelength 850nm |
| Single-mode Distance | 40 km on 9/125µm fiber (attenuation ≤ 0.35 dB/km), Wavelength 1310nm / 1550nm |
| Transmit Power | -12 dBm to -5 dBm (MM) / -9 dBm to -8 dBm (SM) |
| Receiver Sensitivity | -28 dBm (MM) / -27 dBm (SM) |
| Link Budget | 16 dB to 18 dB |
◆ E1 Interface
| Standard | ITU-T G.703 compliant |
| Bit Rate | 2048 Kbps ± 50 ppm |
| Line Code | HDB3 |
| Impedance | 75 Ω Unbalanced / 120 Ω Balanced |
| Jitter Performance | Complies with G.742 and G.823 |
◆ Ethernet Interface (10/100M)
| Interface Rate | 10/100 Mbps, Half/Full Duplex Auto-Negotiation |
| Standard | Compatible with IEEE 802.3, IEEE 802.1Q (VLAN) |
| MAC Address | 4096 MAC Addresses |
| Connector | RJ45, Supports Auto-MDI/MDIX |
◆ Working Environment
| Working Temperature | -10°C ~ 50°C |
| Working Humidity | 5% ~ 95% (non-condensing) |
| Storage Temperature | -40°C ~ 80°C |
| Storage Humidity | 5% ~ 95% (non-condensing) |
Specifications
| Item | Details |
| Model Number | KDS2P-E16bF4R2 |
| Function Description | 16 E1, LCD PDH, 4 FE, with ALS function, Console and SNMP, 1+1 Optical Fiber Backup |
| Port Description | • 1+1 Optical Ports • 16 E1 Interfaces (75 Ω / 120 Ω) • 4 FE Interfaces • 1 RS232 Console Interface • 1 SNMP Ethernet Interface • 1 Engineering Order-Wire Telephone Interface |
| Power | • Power Supply: AC 180V ~ 260V / DC -48V / DC +24V • Power Consumption: ≤ 10 W |
| Dimensions | 19-inch 1U, 485 × 138 × 45 mm (W × D × H) |
| Weight | 3 kg |
Application
