Price	$185-$230
MOQ	1pcs
Delivery Time	1-3 working days
Brand	E-link
Place of Origin	China
Certification	ISO9001, CE, ROHS, FCC
Model Number	LNK-E1-30PCM
Packaging Details	HDMI Fiber Optic Accessories Standard Carton Packaging
Payment Terms	T/T,Western Union,MoneyGram,PayPal
Supply Ability	1000/Month

Product Details

Ring detect voltage	35V	Interface Code	HDB3
Place of Origin	China	Maximum transmission distance	25HZ
Packaging Details	HDMI Fiber Optic Accessories Standard Carton Packaging	Ring detection frequency	40Km
Model Number	LNK-E1-30PCM	Supply Ability	1000/Month
Certification	ISO9001, CE, ROHS, FCC	Brand Name	E-link
Payment Terms	T/T,Western Union,MoneyGram,PayPal	Power consumption	≤7W
Price	$185-$230	Delivery Time	1-3 working days
Minimum Order Quantity	1pcs	Two-line Impedance	600 Ohm (pick up)

PCM Voice Multiplexer 30 Channel E1 G.703 SNMP FXO FXS

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