E-link China Technology Co.,LTD
| 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 |
| Maximum transmission distance | 25HZ |
| Ring detect voltage | 35V |
| Ring detection frequency | 40Km |
| Two-line Impedance | 600 Ohm (pick up) |
| Interface Code | HDB3 |
| Power consumption | ≤7W |
| Brand Name | E-link |
| Model Number | LNK-E1-30PCM |
| Certification | ISO9001, CE, ROHS, FCC |
| Place of Origin | China |
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Product Specification
| 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 |
| Maximum transmission distance | 25HZ | Ring detect voltage | 35V |
| Ring detection frequency | 40Km | Two-line Impedance | 600 Ohm (pick up) |
| Interface Code | HDB3 | Power consumption | ≤7W |
| Brand Name | E-link | Model Number | LNK-E1-30PCM |
| Certification | ISO9001, CE, ROHS, FCC | Place of Origin | China |
| High Light | SNMP Voice Multiplexer ，FXO FXS Voice Multiplexer ，30 Channel Voice Multiplexer | ||
Model : LNK-E1-30PCM
Product Description & Overview
This advanced PCM voice multiplexer represents a sophisticated telecommunications solution engineered
for reliable voice and data transmission over E1 infrastructure. Utilizing proprietary VLSI technology specifically
developed for E1 line transmission, this professional-grade multiplexer delivers exceptional performance in
voice communication applications. The system supports flexible configuration options with capacity for up to
30 voice channels and four serial data interfaces, providing comprehensive connectivity solutions for diverse
communication requirements.
Featuring optional integrated SNMP management module, this versatile multiplexer enables efficient network
monitoring and remote configuration capabilities. The fully digital circuit design ensures reliable and stable
operation while maintaining low power consumption and high integration levels. The compact form factor
and simplified installation make it ideal for space-constrained environments where both performance and
physical dimensions are critical considerations.
Designed for telecommunications service providers, enterprise networks, and specialized communication
systems, this robust multiplexer establishes new standards for voice transmission quality and operational
efficiency. The comprehensive alarm monitoring system and built-in diagnostic capabilities ensure quick
fault identification and resolution, while the extended temperature range compatibility guarantees reliable
performance in various environmental conditions. Perfect for legacy voice network modernization, emergency
communication systems, and industrial telephony applications, this PCM voice multiplexer delivers exceptional
value through its combination of channel capacity, reliability, and management flexibility in modern communication
infrastructure deployments.
Key Features Bullets
Proprietary Core Technology
Self-developed IC with single PCB design for enhanced reliability
High-Density Voice Capacity
30-channel voice access with caller ID and polarity billing functions
Advanced E1 Compliance
G.703 interface with digital clock recovery technology
Flexible Service Expansion
Dual auxiliary interfaces for data/switch/audio signals
Comprehensive Network Management
Independent SNMP support with cascade management capability
Universal Voice Interfaces
FXO/FXS ports and EM2/4 audio interface compatibility
Intelligent Monitoring System
Remote alarm status monitoring with LED indication
Environmental Monitoring
Temperature and voltage monitoring via network management
Multi-Voltage Power Supply
AC/DC power input options for flexible deployment
Technical Specifications & Indexes
| Parameter | Specification |
| FXS Phone Interface | |
| Ring frequency | 75V |
| Maximum transmission distance | 25HZ |
| Two-line Impedance | 600 Ohm (pick up) |
| Return loss | 40 dB |
| FXO Switch Interface | |
| Ring detect voltage | 35V |
| Ring detection frequency | 40Km |
| Transmission distance | 17HZ-60H |
| Two-line Impedance | 600 Ohm (pick up) |
| Transmitting power | -9dBm (Min) ~-8dBm (Max) |
| Return loss | 40 db |
| Link budget | 18dBm |
| E1 Interface | |
| Interface Standard | comply with protocol G.703 |
| Interface Rate | 2048Kbps±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 |
| Power | |
| Power supply | AC180V ~ 260V；DC –48V；DC +24V |
| Power consumption | ≤7W |
| Dimension | |
| Product size | 19 inch 1U 485X138X44mm(WXDXH) |
| Simple packaging | 522X198X82mm(WXDXH) |
| Piece weight | 3KG |
| 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) |
| Dimension | |
| 19 inch 1U | 483(Length)X200(Width)X44(height)mm |
Application Scenarios
Supporting enterprise multi-site telephone network interconnection
Enabling industrial park communication system deployments
Facilitating emergency communication network installations
Providing railway signal communication solutions
Supporting power grid dispatching communication systems
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2001
Total Annual:
>10000000
Employee Number:
21~200
Ecer Certification：
Verified Supplier
Established in 2001 & headquartered in Shenzhen, E-link China Technology Co., Ltd. (E-link) is a leading manufacturer of fiber optic communication and video transmission products in China. Our main products include: Fiber Media Converters Industrial Ethernet PoE switchs P... Established in 2001 & headquartered in Shenzhen, E-link China Technology Co., Ltd. (E-link) is a leading manufacturer of fiber optic communication and video transmission products in China. Our main products include: Fiber Media Converters Industrial Ethernet PoE switchs P...
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