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The Global Tech PMUX-E series is a manageable PDH multiplexer that supports 1E1, 4E1, 8E1, or 16E1 channel transparent transmission alongside 4 wire-speed 10/100/1000M Ethernet channels. It uses advanced FPGA technology and modular design to deliver plug-and-play customization for diverse service requirements, with a maximum optical line bit rate of 155.52Mbps and transmission distance of up to 120 km. The device fully complies with G.703 and IEEE802.3 standards, ensuring interoperability with existing network infrastructure.
E1 interfaces support HDB3 coding and adhere to G.703, G.823, and G.742 standards, while Ethernet interfaces offer full/half duplex auto-negotiation and support IEEE802.1Q VLAN tagging for transparent transport. Optical interfaces operate at 1310nm or 1550nm wavelengths, with TX power ≥ -10dBm and RX sensitivity ≤ -35dBm, providing robust connectivity. The equipment includes sophisticated alarm functions for remote monitoring and supports E1 loopback for maintenance, with rack-mounted and desktop configurations available.
This product is designed for telecom operators, ISPs, and enterprises requiring reliable E1-to-Ethernet conversion with high availability features like 1+1 optical interface protection and automatic laser shutdown. Buyers typically confirm compatibility with their existing SDH networks, verify E1 interface impedance (75Ω or 120Ω), and check support for in-band management via E1. The desktop variant includes an RS232 management port, while the chassis version adds Ethernet management capabilities.
| E1 Channels | 1, 4, 8, or 16 (transparent transmission) |
| Ethernet Channels | 4 x 10/100/1000M (shared bandwidth) |
| Optical Line Bit Rate | 155.52Mbps |
| Max Transmission Distance | 120 km |
| Optical Interface Wavelength | 1310nm or 1550nm |
| Optical TX Power | ≥ -10dBm |
| Optical RX Sensitivity | ≤ -35dBm |
| Optical RX Range | > 27dB |
| E1 Bit Rate | 2.048Mbps |
| E1 Coding | HDB3 (complies with G.703, G.823, G.742) |
| Ethernet Connector | RJ45 (MDI/MDIX auto negotiation) |
| Operating Temperature | -10°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Power Supply | AC 220V or DC -48V |
| E1 Interface Impedance | 75Ω or 120Ω (standard for PDH networks) |
| Typical Ethernet Standard | IEEE802.3 (standard for wired Ethernet) |
Guangdong Global Telecommunication Technology Co., Ltd. is based in Guangzhou, China, with its registered address at No.75-78 Pacific Industrial Zone, Xintan Town, Zengcheng Area. The company specializes in telecommunication equipment, including PDH and SDH multiplexers, with a focus on modular and scalable solutions for network operators and enterprises.
The supplier’s profile indicates an imported tier classification with a harbor trust tier, though its response rate and average response hours are currently listed as zero. The company’s product portfolio includes manageable PDH systems like the PMUX-E series, which are designed for flexibility and compliance with international standards such as ITU-T G.703 and IEEE802.3.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Before ordering, verify the exact number of E1 and Ethernet channels required for your deployment, as the PMUX-E series supports configurations from 1E1 to 16E1. Confirm compatibility with your existing network infrastructure, particularly the optical wavelength (1310nm or 1550nm) and E1 interface impedance (75Ω or 120Ω). Check whether rack-mounted or desktop configurations align with your space and management needs.
For logistics, confirm the lead time for custom configurations, as modular designs may require additional assembly. Clarify Incoterms (e.g., FOB Guangzhou) and payment terms, as these are not specified in the listing. Ensure the supplier can provide the necessary export documentation, including certificates of origin and compliance with ITU-T standards.
Quality checks should include testing E1 transparent transmission and Ethernet throughput under full load to validate the 155.52Mbps optical line rate. Inspect the device for compliance with G.703 and IEEE802.3 standards, and verify the RX sensitivity and TX power meet the specified thresholds. Request a factory test report for optical interfaces and E1 coding to ensure adherence to the listed parameters.
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