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4E1+4ETH+30Ports Multi-Service Optical Terminal(OTS-MSG)

  • High-performance multi-service optical terminal supporting 30 FXS/FXO voice ports, 4E1 interfaces, 4 Gigabit Ethernet ports, and RS232 data over a single optical fiber. Ideal for power, transportation, security, and industrial communication systems. Flexible interface configuration, long-distance transmission up to 120km, and rack-mount design. Customization available.
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Detailed introduction

Product Overview

The OTS-MSG Multi-Service Optical Terminal integrates 30 voice channels (FXS/FXO), 4 E1 interfaces, 4 Gigabit Ethernet ports, and 1 RS232 serial port, supporting unified fiber transmission over single or dual fibers. It effectively reduces cabling costs and improves network deployment efficiency. This device is widely used in power systems, intelligent transportation, industrial control, emergency communication, military and police security, and government offices. It is especially suitable for building distributed voice and data integrated networks.


Technical Specifications

Optical InterfaceSC/FC/LC optional, mBnB coding, 1.25Gbps, 0–120km transmission, wavelengths 1310/1490/1550nm
Ethernet Ports4×RJ45, 10/100/1000Mbps auto-negotiation, IEEE 802.3ab, logical isolation, VLAN transparent
E1 Interfaces4×BNC/RJ45, 75Ω/120Ω selectable, HDB3 coding, compliant with G.703 / G.704
FXS/FXO Interfaces30×RJ45, caller ID support, 300–3400Hz frequency, impedance 200Ω+680Ω (FXO) / 200Ω+560Ω (FXS)
RS232 Port1×DB9 for serial data or device management
Power SupplyAC 100–265V or DC -36 to -72V, power consumption <25W
Physical Size19-inch 1U standard rack mount
EnvironmentalOperating temperature -10°C to +50°C, humidity ≤95% (non-condensing)

Key Features

◆Optical interface

Wavelength:    Single mode 1310nm/1550nm/1490nm, multimode 850nm/1310nm

Optical line coding: mBnB

Optical line rate: 1.25Gb/S

Optical interface:   SC/FC/LC

Transmission distance:  0--120 kilometers

◆Gigabit Ethernet port

Provides 4 Gigabit Ethernet ports

Supports 10M/100M/1000M, full/half duplex adaptive

Protocol:  Supports IEEE 802.3ab

4 Ethernet ports support logical isolation

Supports 802.1Q VLAN frame transmission

Transmission rate: 1000M, 4 Ethernet ports share 100M bandwidth

Physical interface: RJ45

◆E1 interface

Provides 4 E1 channels

Impedance 75Ω/120Ω optional, HDB3 code, in line with ITU-T G.703 recommendations

Physical interface: BNC (RJ45)

◆FXS/FXO interface

Provides 32 FXS/FXO interfaces

Supports caller ID

Impedance: 200Ω+680Ω||0.1μF (FXO), 200Ω+560Ω||0.1μF (FXS)

Frequency characteristics: 300~ 3400Hz (-0.6~+3dB)

Physical interface: RJ45

◆Mechanical structure

19-inch 1U

◆Working conditions

Power supply voltage: 100V~265V (AC)

-36V~-72V (DC)

Power consumption:   Less than 25W

Working temperature: -10°C~+50°C

Recommended Application Scenarios

  • Power Dispatch Systems: Integrate SCADA signals, E1 dispatch voice, and data transmission via fiber to improve dispatch efficiency and system anti-interference capability.

  • Railway Communication: Transmit signaling control, IP surveillance video, and voice dispatch systems to achieve unified communication across all scenarios.

  • Public Safety Emergency Command: Deploy front-end voice terminals and control signal backhaul to enable efficient remote coordination between field and command centers.

  • Industrial Automation: Connect PLCs, sensors, and voice management devices for real-time data synchronization and integrated voice control.

  • Smart City Construction: Enable unified access and data transmission for intelligent lighting, information broadcasting, and traffic voice systems.

Why Choose Us

We are a high-tech enterprise specializing in fiber optic communication solutions, offering a comprehensive product range including multi-service optical terminals, PDH fiber multiplexers, Voice over Fiber optical terminals, and industrial Ethernet fiber converters. We provide full OEM/ODM customization services, including:

  • Customizable interface counts (2/4/8/16 E1, 16/30/32/48 voice channels)

  • Optical modules and power configurations (single fiber/dual fiber, SC/FC/SFP options)

  • Power supply modes (AC220V/DC48V/wide voltage)

  • Multi-language web management systems (Chinese/English switchable)

  • Various form factors: wall mount, desktop, DIN rail, 1U/2U rack-mount




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Hot Line

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+86-531-88752665

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