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IDM-ENT448 telephone optical terminal, 8 phones, 4 Ethernet

IDM-ENT448 Telephone Optical Multiplexer 8 Telephone Channels 4 Ethernet Ports

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

The IDM-ENT448 multi-service optical multiplexer provides a 155M optical interface, housed in a 19-inch 1U standard chassis. It offers 8 telephone channels + 4 shared 100M Ethernet ports (with VLAN partitioning) + 4 E1 transparent transmission. Power supply options include ~220V or -48V, with dual power supply as an option.

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Overview:

The IDM-ENT448 telephone optical terminal utilizes the optical 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.

IDM-ENT448

Product Features:

Adopts a 19-inch 1U standard chassis for easy installation.

Optical interface rate of 155Mbps, with FC/SC/LC optical interface options, and selectable transmission distance.

The optical terminal provides 4 channels of Ethernet service, with 4 channels of Ethernet sharing a line-rate 100Mbps, and supports VLAN partitioning.

4 channels of transparent transmission E1 service interfaces, in BNC interface form.

The optical terminal provides 8 channels of telephone service interfaces, supporting caller ID.

Comprehensive function control switches and alarm indication functions.

Technical Specifications:

Optical Interface

Interface Type

FC (SC etc. customizable)

Fiber Mode

Single-mode (multi-mode optional)

Optical Rate

155bps±50ppm

Wavelength

1310nm

Transmit Power

-2~-11dBm

Receiver Sensitivity

Better than -36dBm

E1 Interface

Line 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

Operating 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

440×230×45 (mm)

Application Example:

IDM-ENT448

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