IDM-ENT448 Centralized Telephone Optical Multiplexer

IDM-ENT448|Telephone Optical Multiplexer·📅UpdatedMay 12, 2026·✍️管理员

IDM-ENT448 Centralized Multi-Service Optical Multiplexer, 19-inch 4U standard rack-mount chassis; IDM-ENT448 Centralized Multi-Service Optical Multiplexer provides dual -48V power supply; 10 service card slots; each service card provides 4 Ethernet ports, 4 E1 interfaces, and 8 telephone interfaces.

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Overview:

The IDM-ENT448 centralized telephone optical terminal utilizes the fiber interface, digital trunk interface, or analog subscriber interface resources equipped on the central office switch to extend voice and data services to various subscriber areas through the IDM device, serving as a substitute for remote small exchanges, enabling cross-boundary subscriber provisioning, and deferring the construction of switching offices; alternatively, it resolves the constraints of twisted pair in terms of frequency band and transmission distance within urban areas, thereby expanding the service coverage of the switching office.

Product Features:

Product Features:

Optical terminal 19-inch 4U standard plug-in card chassis;
Provides dual -48V power supply; 10 service card slots;
Each service card provides 4 Ethernet channels, 4 E1 interfaces, and 8 telephone channel interfaces;
Comprehensive function control switches and alarm indication features;

Technical Specifications:

Optical Interface

Interface Type	FC (SC etc. customizable)	Fiber Mode	Single-mode (Multi-mode optional)
Fiber Rate	155bps±50ppm	Wavelength	1310nm
Transmit Power	-2～-11dBm	Receiver Sensitivity	Better than -36dBm

E1 Interface

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

Ethernet

Interface Type	RJ-45	Transmission Rate	10/100Base-T 10M/100M
Standard Protocol	Supports IEEE802.3	Operation Mode	Full/Half duplex/Auto-negotiation

FXO/FXS Interface

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

Power Supply and Consumption

Power Supply

DC-48V or AC 220V

Total Power Consumption

40W ±10%

Environmental Conditions

Operating Temperature

0ºC～40ºC

Humidity

≤90% (non-condensing)

Product Dimensions

Length×Depth×Height