Views: 0 Author: Site Editor Publish Time: 2025-07-02 Origin: Site
Against the backdrop of the rapid evolution of global digital infrastructure, communication systems are constantly moving towards integration and intelligence. In a large number of small and medium-sized network scenarios, how to achieve long-distance and stable transmission of multi-service signals such as voice, data, and E1 in a low-cost and high-reliability manner is still a core issue in communication engineering. PCM equipment (Pulse Code Modulation Multiplexer) has become an important communication infrastructure in government and enterprise private networks, rail transit, power dispatching, industrial control and other fields with its mature technical architecture, good compatibility and stable communication capabilities.
As a professional domestic manufacturer of optical communication equipment, Shandong Oriental Communication Technology Co., Ltd. relies on its own factories and independent R&D teams to launch a series of high-performance PCM multiplexing equipment, including 2E1 PCM multiplexers, 4E1 PCM optical terminals, E1+ETH hybrid access PCM equipment, telephone voice PCM systems, etc., to fully meet users' communication needs under multi-service access, multiple interface combinations, and multiple environment deployments. The products are exported to more than 30 countries and regions in Southeast Asia, the Middle East, Africa, Eastern Europe, etc., and are highly recognized and trusted by engineering companies, operators and system integrators.
PCM equipment: a key bridge for small private network communications
PCM equipment is a multiplexing device with E1 as the basic transmission link. It supports the encapsulation of multiple business types such as analog voice (FXO/FXS), RS232/RS485 serial port, Ethernet data, and unified transmission through E1 link. This technology is widely used in government agencies, public security systems, substation communications, railway signals, oil field remote monitoring and other dedicated communication networks, and is an indispensable infrastructure in traditional TDM network environments.
Compared with the full IP solution, PCM equipment has the advantages of low latency, strong real-time performance, and low sensitivity to sudden interference. It is especially suitable for scenarios with extremely high requirements for communication stability but limited network bandwidth. For example, in power substations or highway monitoring points in remote areas, the PCM system can efficiently transmit voice and control signals back to the main control center through the E1 circuit to ensure timely and accurate transmission of key instructions.
Five major technical advantages of Shandong Oriental Communication PCM equipment
Flexible combination of multiple interfaces:Supports 2~16 E1 interfaces, can be configured with up to 32 FXS/FXO voice interfaces, 4 Ethernets, 8 RS232s, etc., and can customize mixed service combinations on demand;
Industrial-grade hardware design:Supports wide temperature operation (-40℃~+85℃), anti-static, lightning-proof, and moisture-proof design, suitable for harsh environments such as outdoor, tunnel, and power;
Strong stability of synchronous clock:Adopts high-precision crystal oscillator and E1 clock extraction technology to ensure the consistency and stability of communication across the network;
Plug and play, remote configuration:Embedded management function, some models support SNMP/Web remote management, can be quickly configured and remotely diagnosed;
Low latency, high cost performance:No need for complex IP protocol configuration, high communication efficiency, low deployment and maintenance costs, suitable for budget-constrained or traditional private network transformation projects
Rich customization capabilities to meet differentiated application needs
Shandong Oriental Communication's PCM equipment supports a variety of OEM/ODM customization, including:
Interface layout customization (front/rear outlet, specific pin definition);
Power module customization (AC220V, DC48V, dual power redundancy);
Case color and installation method customization (wall-mounted, 1U rack-mounted, rail-mounted);
Management interface customization (language switching, Web brand logo, user interface customization);
Protocol compatibility customization (adaptation to old equipment protocols, private network private protocol access, etc.).
These flexible customization capabilities make PCM equipment not only applicable to traditional telecommunications systems, but also widely adaptable to the construction of communication networks in specific industries such as petroleum, electricity, public security, national defense, and transportation.
Enabling the modernization of private network communications and welcoming the "full connection" era
With the advancement of "new infrastructure construction" and the deepening of "industrial Internet", private network communications are also facing the realistic challenges of network upgrades and system integration. In the process of evolving towards IP and digitalization, PCM equipment will continue to play an important role in "terminal access", "transition solutions", "heterogeneous system bridging" and other aspects due to its stability, reliability and simple structure.
Shandong Dongfang Communication Technology Co., Ltd. will continue to deepen its PCM and TDM optical communication product fields, continuously improve product reliability, intelligence and interface adaptation capabilities, and form a complete "end-to-end communication solution" with multi-service optical terminals, PDH fiber multiplexers, voice optical terminals and other products. The company adheres to the concept of "quality first, service-oriented" to provide global customers with advanced technology, flexible deployment, economical and efficient communication products, and help customers in various industries build a stable, secure and efficient network transmission platform.