The HJ-A2001 integrated multiplexing device is a point-to-point transmission device developed based on large-scale programmable logic devices, achieving 100M line-rate Ethernet data channels, telephone, standard E1, and asynchronous data RS485/422/232 hybrid multiplexing and transmission.
The device features comprehensive alarm and monitoring functions, high integration, low power consumption, stable performance, and ease of use.
The device is widely used in public security systems, banking systems, highways, telecommunications, mobile, and Unicom communication networks.
1. Based on telecom-grade product design, the line side provides 1-2 PDH optical ports or E1 electrical ports;
2. The technical parameters of each interface comply with relevant international or domestic standards;
3. Each interface has good overcurrent, overvoltage, and lightning protection. It can automatically recover after circuit surge release through ITU-T K.20 lightning impulse, power induction test, and power contact test;
4. Optical port 1+1 dual backup access;
5. E1 electrical port 1+1 dual backup access;
6. Ethernet interface functional characteristics description:
Ethernet interface 10M/100M adaptive, straight-through and crossover cable adaptive;
7. Strong testing functions, equipped with comprehensive alarm functions and loopback test functions:
The device has comprehensive panel alarm indication functions, including optical path status, E1 interface status, call on-hook/off-hook status, Ethernet link status, remote alarm, etc. According to the loopback test function, the fault range is reduced, divided into local loopback and remote loopback functions.
Modular power supply 1+1 dual backup design: AC220V dual power supply mode;
8. Complete network management functions, real-time monitoring of various statuses during device operation;
|
Interface Type |
Description |
|
Ethernet Interface |
1 (Bandwidth 100M), RJ45 |
|
Ethernet Interface |
1 (Bandwidth 10M), RJ45 |
|
E1 Interface |
4, BNC (DB9 to BNC) for optical fiber transmission |
|
Telephone Interface |
8, DB25 |
|
Asynchronous Data Interface |
8, RJ45/Industrial Terminal (RS232/422/485) |
|
Optional Interface |
Network Management/Switching/Intercom/Synchronous Data/Magnet/EM/Hotline, etc. |

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