IDM-300ME Telephone Optical Terminal 300 Telephone Lines 2 Ethernet Ports

Name: IDM-300ME Telephone Optical Terminal 300 Telephone Lines 2 Ethernet Ports - Raytrans
Brand: Beijing Raytrans Digital Technology Co., Ltd.
SKU: IDM-300ME

📅May 12, 2026

Model：IDM-300ME|Category：Telephone Optical Terminal

The IDM-300ME multi-service optical terminal provides 2 shared wire-speed 100M Ethernet interfaces and 6 groups of transparent E1 interfaces. It also provides FXO and FXS interfaces with Caller ID functionality, supporting up to 300 subscriber lines.

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Friendly Reminder:

This high-capacity telephone optical terminal is the best alternative to copper cables. The price of one pair of 300-line telephone optical terminals is equivalent to the cost of 600 meters of 64-core cable!

Overview:

The IDM-300ME telephone optical terminal provides 2 shared wire-speed 100M Ethernet interfaces and 6 groups of transparent E1 interfaces. It also provides FXO and FXS interfaces with Caller ID functionality, supporting up to 300 subscriber lines.

The IDM-300ME offers 13 card slots, with 1+1 redundant power supplies, 10 service cards, and 1 main control card. All card slots support hot-swapping.

The IDM-300ME multiplexes narrowband and broadband services onto a 155M optical transmission channel, achieving both simplified transmission lines and cost savings. The device features a plug-in card structure design, with each service card providing 30 telephone lines. The equipment is easy to install and maintain.

IDM-300ME

Product Features:

Optical line rate of 155Mbps;

1 CMU central control and management card, 10 subscriber card slots. Each subscriber interface card can accommodate 30 channels of 64K telephone audio services, with a maximum subscriber interface capacity of 300 channels;

2 100M auto-negotiation Ethernet channel interfaces, supporting VLAN partitioning;

6 groups of transparent E1 interfaces, 4 groups in 75-ohm unbalanced mode and 2 groups in 120-ohm balanced mode, facilitating customer selection based on the environment;

The entire unit features a centralized chassis design, standard 6U chassis, compliant with telecommunications and carrier standards;

Simple installation and easy maintenance.

Technical Specifications:

Optical Interface

Interface Type	FC (SC and others customizable)	Fiber Mode	Single-mode (multi-mode optional)
Fiber Rate	155Mbps	Wavelength	850nm/1310nm/1550nm
Transmit Power	-2～-11dBm	Receiver Sensitivity	Better than -36dBm

Ethernet

Interface Type	RJ-45	Transmission Rate	100M wire-speed, 100Mbit/s
Standard Protocol	Compliant with IEEE-802.3u standard	Port Mode	10/100M auto-negotiation

E1 Interface

Bit Rate	2048Kbps	Line Code	HDB3
Standard Protocol	Supports ITU-T G.703	Impedance	75Ω/120Ω
Frame Structure	PCM30/31	Mode	Transparent

FXO/FXS Interface

Audio Range	300Hz～3400Hz	Impedance	Three-element complex impedance 200Ω+560Ω//0.1μF
Compression Rate	ITU G.711 A-law	Loop Current	25mA/channel