HJ-AF3840

The HJ-AF3840 series high-capacity PDH optical terminal is a multi-service fiber optic transmission device independently developed and produced by our company. The equipment uses internationally advanced integrated circuits, programmable logic circuits, and high-speed microprocessor design to create a high-capacity PDH optical terminal. It supports 128 E1 (G.703) interfaces and is expandable for telephone, Ethernet, asynchronous data, synchronous data, and more. It is widely used in public networks of telecom, mobile, and other telecom operators, as well as in private networks of postal services, power, banking, public security, military, railways, and large enterprises and institutions.

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Commodity name: HJ-AF3840

The HJ-AF3840 series high-capacity PDH optical terminal is a multi-service fiber optic transmission device independently developed and produced by our company. The equipment uses internationally advanced integrated circuits, programmable logic circuits, and high-speed microprocessor design to create a high-capacity PDH optical terminal. It supports 128 E1 (G.703) interfaces and is expandable to telephone/Ethernet/asynchronous data/synchronous data, etc. It is widely used in public networks of telecom and mobile operators, as well as private networks in postal services, power, banking, public security, military, railways, and large enterprises and institutions.

Each interface is equipped with surge and three-level lightning protection;
The technical parameters of each interface comply with relevant international or domestic standards;
Each board supports hot-swapping functionality;
Modular design; easy to expand and maintain;
Interface impedance 75Ω (unbalanced) or 120Ω (balanced); (default is unbalanced 75Ω)
Strong anti-interference capability, stable performance, and complete functions;
Optical fiber interface: LC; single-mode/multi-mode; 0-100Km; (customized according to customer requirements);
Comprehensive network management functions, real-time monitoring of various device operating statuses (optional);
19-inch 3U aluminum profile chassis.

Interface Type	Description
E1 Interface	128, BNC (DB25 to BNC)
Ethernet Interface	1~2 (Bandwidth 100M/10M), RJ45
Optional Interface	Network Management / Switch Quantity / Intercom / Synchronous Data / Magnet / EM / Hotline, etc.