IDM-CH120NET

PDH·📅UpdatedMay 12, 2026·✍️管理员

The 120NET optical multiplexer is an optical transmission device developed on the basis of VLSI technology, realizing hybrid multiplexing and optical transmission of transparent E1 circuits and 100M wire-speed Ethernet data channels; full-duplex/half-duplex auto-negotiation; providing complete

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Overview:

The IDM-CH120NET 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 multiplexing and optical transmission; full-duplex/half-duplex auto-negotiation; providing comprehensive local/remote alarm monitoring; high integration, low power consumption, stable performance, and easy operation.

Optical Terminal

Product Features:

Provides transparent transmission of 4/8/16 groups of E1 per G.703 standard;
Optical terminal provides 155Mbps optical interface transmission rate;
Dual power supply with hot backup;
Optical terminal supports E1 tributary loopback function for easy line testing and management;
Optical terminal offers optional dual optical port redundancy, supporting forced switching or automatic protection switching;
Optical terminal provides 2 groups of shared wire-speed 100M Ethernet interfaces with VLAN partitioning capability.

Technical Specifications:

Optical Interface

Connector Type	FC (SC etc. customizable)	Fiber Mode	Single-mode (multi-mode optional)
Transmission Rate	155Mbps	Wavelength	1310nm/1550nm
Optical Output Power	-2～-11dBm	Receiver Sensitivity	Better than -36dBm
Transmission Distance	20Km, optional long-distance optical module for extended fiber transmission.

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	Duplex Mode	Full/Half duplex/auto-negotiation

Power Supply and Consumption

Power Supply

AC220V/DC-48V

Power Consumption

≤40W

Environmental Conditions

Operating Temperature

0^oC～50^oC

Storage Temperature

0～95% (non-condensing)

Product Dimensions

Length×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