PCM设备 IDM-30A 综合业务复用设备

---

title: "PCM Equipment IDM-30A Integrated Service Multiplexer"
model: "PCM"
category: "PCM"
tags:

• "PCM Equipment"
• "PCM Equipment Quotation"
• "PCM Equipment Manufacturer"
• "PCM Multiplexing Equipment"
• "Integrated PCM Equipment"
• "PCM Primary Group Multiplexing Equipment"
• "Voice PCM Equipment"
• "PCM Equipment Interface Card"
• "E1 Primary Group Multiplexing Equipment"
  description: "The IDM-30A Integrated Service Multiplexer adopts a 19-inch 1U standard chassis; provides 30 user interfaces as defined by the standard; rich 64K user interfaces, allowing arbitrary configuration of more than 20 types of interface cards; can be configured with n×64K V.35/V.11 or Ethernet user interfaces;"
  cover: "/images/imports/img-c56963ff.webp"
  images:
• "/images/imports/img-c56963ff.webp"
  keywords: "PCM Equipment,PCM Equipment Quotation,PCM Equipment Manufacturer,PCM Multiplexing Equipment,Integrated PCM Equipment,PCM Primary Group Multiplexing Equipment,Voice PCM Equipment,PCM Equipment Interface Card,E1 Primary Group Multiplexing Equipment"
  slug: "pcm-idm-30a"
  publishDate: "2026-05-12"

Overview:

The IDM-30A Integrated Service Multiplexer connects user terminal equipment or user terminal equipment to the public switched telephone network via 2M transmission media. By utilizing the 2M digital trunk interfaces or analog subscriber interfaces equipped on the central office switch, the IDM equipment extends voice and data services to various subscriber areas, serving as a substitute for remote small exchanges, enabling cross-boundary number assignment, and deferring the construction of switching offices.

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IDM-30A Integrated Service Multiplexer

Product Features:

• Adopts a 19-inch 1U standard chassis;
• Provides 30 user interfaces as defined by the standard;
• Rich 64K user interfaces, allowing arbitrary configuration of more than 20 types of interface cards;
• Can be configured with n×64K V.35/V.11 or Ethernet user interfaces;
• The front panel features comprehensive function control switches and alarm indication functions;
• Equipped with concise and comprehensive network management functions, enabling real-time online monitoring of the equipment.

Technical Specifications:

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	n×64Kbps (n≤30)
Standard Protocol	Supports IEEE802.3	Operating Mode	Full/Half Duplex/Auto-negotiation

FXO, FXS Interface

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

EM2/4-Wire Interface

Audio Range	300Hz～3400Hz	Impedance	Balanced 600Ω
Compression Rate	A-law in ITU G.711	Return Loss	Not less than 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 specification

Power Supply and Consumption

Power Supply Mode

AC220V/DC-48V

Total Power Consumption

≤50W

Environmental Conditions

Operating Temperature

0ºC～40ºC

Relative Humidity

≤90% (non-condensing)

Product Dimensions

Length × Depth × Height

440×230×45(mm)

Typical Applications:

• Dedicated line access for voice, data, and video surveillance in power, public security, finance, education, and other systems
• Broadband and narrowband integrated service access for residential communities/smart buildings
• Data network extension for telecom, CNC, and Unicom networks