IDM-CH120NET PDH光端机
120NET光端机是在超大规模集成电路的基础上开发的光传输设备，实现了透传E1电路和100M线速以太网数据通道的混合复用及光传输；全双工/半双工自适应；提供完
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title: "IDM-CH120NET PDH Optical Terminal"
model: "IDM-CH120NET"
category: "PDH"
tags: [
"4E1+100M",
"PDH Optical Terminal",
"4E1+100M",
"PDH Optical Terminal Price",
"4E1+100M",
"PDH Optical Terminal Manufacturer",
"120NET Optical Terminal",
"4E1 Optical Terminal"
]
description: "The 120NET Optical Terminal is an optical transmission device developed on the basis of VLSI technology, realizing transparent transmission of E1 circuits and 100M wire-speed Ethernet data channels with hybrid multiplexing and optical transmission; full-duplex/half-duplex auto-negotiation; provides comprehensive local/remote alarm monitoring; high integration, low power consumption, stable performance, and easy to use."
cover: "/images/imports/img-0df2c17a.webp"
images: [
"/images/imports/img-0df2c17a.webp",
"/images/imports/img-49f4a9ba.webp",
"/images/imports/img-c16e17b0.webp"
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specs: {
"Transmission Distance": "20Km, optional long-distance optical modules are available for fiber transmission over longer distances."
}
keywords: "4E1+100M PDH Optical Terminal,4E1+100M PDH Optical Terminal Price,4E1+100M PDH Optical Terminal Manufacturer,120NET Optical Terminal,4E1 Optical Terminal",
slug: "idm-ch120net-pdh",
publishDate: "2026-05-12"
Overview:
The IDM-CH120NET Optical Terminal is an optical transmission device developed on the basis of VLSI (Very Large Scale Integration) technology, realizing transparent transmission of E1 circuits and 100M wire-speed Ethernet data channels with hybrid multiplexing and optical transmission; full-duplex/half-duplex auto-negotiation; provides comprehensive local/remote alarm monitoring; high integration, low power consumption, stable performance, and easy to use.
Product Features:
- Provides transparent transmission of 4/8/16 groups of E1 channels compliant with G.703 standard;
- The optical terminal provides 155Mbps optical interface transmission rate;
- Dual power supply with hot backup redundancy;
- The optical terminal supports E1 tributary loopback function for easy line testing and management;
- The optical terminal supports optional dual optical port redundancy with forced switching or automatic protection switching;
- The optical terminal provides 2 groups of shared wire-speed 100M Ethernet interfaces with VLAN partitioning capability.
Technical Specifications:
Optical Interface
Connector Type | FC (SC and others customizable) | Fiber Mode | Single-mode (multi-mode optional) |
Transmission Rate | 155Mbps | Wavelength | 1310nm/1550nm |
Transmit Power | -2～-11dBm | Receiver Sensitivity | Better than -36dBm |
Transmission Distance | 20Km, optional long-distance optical modules are available for fiber transmission over longer distances. | ||
E1 Interface
Bit Rate | 2048Kbps | Line Code | HDB3 |
Standard Protocol | ITU-T G.703 compliant | Impedance | 75Ω/120Ω |
Frame Structure | PCM30/31 | Signaling | Channel-associated signaling |
Ethernet
Connector Type | RJ-45 | Transmission Rate | 10M/100M auto-negotiation |
Standard Protocol | IEEE802.3 compliant | Operating Mode | Full/half duplex/auto-negotiation |
Power Supply and Power Consumption
Power Supply | AC220V/DC-48V | Power Consumption | ≤40W |
Environmental Conditions
Operating Temperature | 0oC～50oC | Storage Humidity | 0～95% (non-condensing) |
Product Dimensions
Width × Depth × Height | 440 × 230 × 45 (mm) |
Ordering Information
No. | Model | Description |
1 | IDM-CH120NET | 4 × E1 interfaces, 2 × 100M Ethernet interfaces |
2 | IDM-CH240NET | 8 × E1 interfaces, 2 × 100M Ethernet interfaces |
3 | IDM-CH480NET | 16 × E1 interfaces, 2 × 100M Ethernet interfaces |
Typical Application:
