PCM

PCM·📅UpdatedMay 12, 2026·✍️管理员

The IDM-30F series integrated service multiplexer adopts a 19-inch 1U standard chassis, with a transmission rate of 155M. It supports 4 shared line-rate 100M Ethernet channels with VLAN partitioning and 8 groups of transparent E1 channels, while allowing arbitrary configuration of more than 20 types of interfaces.

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Overview:

The IDM-30F series integrated service multiplexer adopts a 19-inch 1U standard chassis with a transmission rate of 155M. It supports 4 shared line-rate 100M Ethernet channels with VLAN partitioning and 8 groups of transparent E1 channels, while allowing flexible configuration of 20+ types of service interface cards.

The IDM-30FN2 provides 2 groups of optical interfaces, suitable for point-to-point and chain network topologies. With a single fiber optic line resource, it can provide voice and data services for 8 user nodes. Each node can be configured with 30 channels of 64K services, deployed in bus or point-to-point topology. All nodes on the entire fiber link share the line-rate 100M Ethernet interface.

Product Features:

Product Features:

Supports multiple voice, data, and video service access;
RJ45 user interface design for easy installation and maintenance;
Nyquist frequency signal system sampling;
Powerful audible and visual alarm functions;
Comprehensive monitoring functions for timely line status diagnosis;
Provides 4 groups of shared line-rate 100M Ethernet interfaces and 8 groups of transparent E1 interfaces;
Supports access of 30 channels of 64K or N×64K voice, data, and video user interfaces.

Technical Specifications:

Optical Interface

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

E1 Interface

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

Ethernet

Interface Type	RJ-45	Transmission Rate	N×2.048Kbps (N≤30)
Standard Protocol	Supports IEEE802.3u	Operating Mode	Full/Half duplex/Auto-negotiation

FXO, FXS Interface

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

EM2/4-Wire Interface

Audio Range	300Hz~3400Hz	Impedance	Balanced 600Ω
Compression Rate	ITU G.711 A-law	Return Loss	≥18dB

V.24 Interface

Transmission Rate

Asynchronous ≤9600bps; Synchronous 64Kbps

Electrical Characteristics

Compliant with CCITT V.28 protocol

V.35 Interface

Interface Type	RJ-45	Electrical Characteristics	Compliant with ITU-T V.35 recommendation
Transmission Rate	N×64Kbps (N=0~31)	Terminal Interface	Compliant with ISO2593