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Brand Name : E-link
Model Number : LNK-PDH-E8-4G-2SFP Series
Certification : ISO9001, CE, ROHS, FCC
Place of Origin : China
MOQ : 1pcs
Price : $235-$285
Payment Terms : T/T,Western Union,MoneyGram,PayPal
Supply Ability : 1000/Month
Delivery Time : 1-3 working days
Packaging Details : HDMI Fiber Optic Accessories Standard Carton Packaging
Receiver sensitivity : -28dBm (Min)
Link budget : 16dBm
Fiber Type : 8/125um, 9/125um
Interface Code : HDB3
Jitter tolerance : In accord with protocol G.742 and G.823
Connector : RJ45, support Auto-MDIX
Model : LNK-PDH-E8-4G-2SFP Series
Product Description & Overview
This advanced PDH fiber optic multiplexer represents a breakthrough in telecommunications technology,
developed using sophisticated VLSI architecture to deliver exceptional performance and reliability. The
system provides comprehensive connectivity with eight E1 interfaces, four Gigabit Ethernet ports with
full switching capability and VLAN support, plus two flexible expansion interfaces for diverse service
requirements. Engineered for carrier-class operation, the platform features 1+1 fiber protection with
automatic redundancy switching to ensure zero service interruption in mission-critical network
environments.
The integrated expansion interfaces support versatile connectivity options including RS232/RS485/
RS422 asynchronous data transmission, voice channels, E&M audio signals, switch controls, and
additional Ethernet connectivity with dedicated 2M bandwidth allocation. An optional digital business
telephone channel enhances operational communications, while the comprehensive alarm monitoring
system provides real-time network visibility across all service interfaces. The advanced management
platform enables remote configuration and performance monitoring, significantly reducing operational
maintenance costs.
Designed with power efficiency and space optimization in mind, this compact multiplexer incorporates
high-density integration while maintaining industry-leading power consumption metrics. The robust
construction ensures stable operation across extended temperature ranges, making it ideal for 5G
mobile backhaul, enterprise network convergence, and mission-critical industrial communications.
With its extensive interface capacity and reliable fiber optic transmission, this PDH multiplexer
establishes new standards for high-capacity multi-service transport in modern telecommunications
infrastructure requiring robust E1 and Gigabit Ethernet convergence over protected fiber links.
Key Features Bullets
Proprietary Core Technology
Self-developed IC with 1.5G bandwidth optimization
High-Density Interface Capacity
8 E1 interfaces with G.703 compliance and clock recovery
Advanced Gigabit Ethernet Switching
4-port 10/100/1000M switch with VLAN and logical isolation
Flexible Service Expansion
Dual expansion slots for data/voice/E1/switch signals
Intelligent Network Management
Console interface with remote loopback control
Carrier-Grade Protection
1+1 fiber redundancy with automatic switchover
Extended Transmission Reach
2-120km fiber optic transmission capability
Universal Power Supply
Multi-voltage input with polarity-free protection
Comprehensive Alarm System
Optical signal monitoring with LED indication
Technical Specifications & Indexes
| Parameter | Specification |
| Fiber | |
| Multi-mode Fiber | |
| Fiber Type | 50/125um, 62.5/125um |
| Maximum transmission distance | 5Km @ 62.5 / 125um single mode fiber, attenuation (3dbm/km)Wave Length: 820nm |
| Transmitting power | -12dBm (Min) ~-9dBm (Max) |
| Receiver sensitivity | -28dBm (Min) |
| Link budget | 16dBm |
| Single-mode Fiber | |
| Fiber Type | 8/125um, 9/125um |
| Maximum transmission distance | 40Km |
| Transmission distance | 40Km @ 9 / 125um single mode fiber, attenuation (0.35dbm/km) |
| Wave Length | 1310nm |
| Transmitting power | -9dBm (Min) ~-8dBm (Max) |
| Receiver sensitivity | -27dBm (Min) |
| Link budget | 18dBm |
| E1 Interface | |
| Interface Standard | comply with protocol G.703 |
| Interface Rate | n*64Kbps±50ppm |
| Interface Code | HDB3 |
| E1 Impedance: | 75Ω (unbalance), 120Ω (balance) |
| Jitter tolerance | In accord with protocol G.742 and G.823 |
| Allowed Attenuation | 0~6dBm |
| Gigabit Ethernet Interface (10/100/1000M) | |
| Interface rate: | 10/100/1000 Mbps, half/full duplex auto-negotiation |
| Interface Standard: | Compatible with IEEE 802.3, IEEE 802.1Q (VLAN) |
| MAC Address Capability: | 4096 |
| Connector: | RJ45, support Auto-MDIX |
| Power | |
| Power supply | AC180V ~ 260V;DC –48V;DC +24V |
| Power consumption | ≤10W |
| Dimension | |
| Product size | 19’’ 1U |
| Working environment | |
| Working temperature | -10°C ~ 50°C |
| Working Humidity | 5%~95 % (no condensation) |
| Storage temperature | -40°C ~ 80°C |
| Storage Humidity | 5%~95 % (no condensation) |
Application Scenarios
Supporting 5G mobile backhaul network expansion projects
Enabling enterprise multi-service network convergence systems
Facilitating smart grid communication infrastructure deployment
Providing mission-critical emergency communication solutions
Supporting industrial automation control system networks

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PDH Fiber Multiplexer 8E1 4GE 1+1 Protection 120km Gigabit Images |