
PCM Equipment IDM-120P Integrated Service Cross-Connect Multiplexer
The IDM-120P Integrated Service Cross-Connect Multiplexer adopts a 19-inch 1U standard chassis, functioning as a PCM multiplexer that processes up to 4 E1 signals; it features 8 universal slots and 2 expansion slots, providing 16 channels of 64K plus 8 channels of n×64K user interfaces, with the flexibility to configure over 20 types of interface cards as required.
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Overview:
The IDM-120P Integrated Service Cross-Connect Multiplexer utilizes dedicated large-scale integrated circuits to perform PCM multiplexing of up to 4 E1 signals. It adopts a 19-inch 1U standard chassis with 8 universal slots and 2 expansion slots. It can provide 16 channels of 64K plus 8 channels of n×64K user interfaces, allowing flexible configuration of over 20 types of interface cards as needed. Additionally, PDH optical interface modules can be inserted to provide up to 4 100M Ethernet ports and 4 optical directions, thereby enabling multiplexing of broadband and narrowband services over E1 or fiber, making it a multi-service integrated platform for PCM multiplexing and Ethernet access. The 24 user interface channels provided by the IDM-120P Integrated Service Cross-Connect Multiplexer can be transmitted across 4 E1 directions. It can be flexibly combined with the IDM-240 series, IDM-120 series, IDM-30 series, and mini series to form various network topologies, including chain, star, and tree networks.


Key Features:
◆ High Stability
Utilizes dedicated large-scale integrated circuits. A single chip handles the signal processing of 4 E1 links, greatly enhancing the long-term stability of the equipment.
◆ Flexible Configuration of Multi-Function Interfaces
Built-in 4 multi-timeslot card channels. It supports the insertion of n×64K bandwidth V.35 cards and 10BASE-T cards. The multi-timeslot card channels can also be used to provide high-speed asynchronous RS232 or RS485 interfaces. The V.35 card can operate in both DTE and DCE modes, offering cost-effective multi-timeslot user interface cards such as V.35 and 10Base-T.
◆ Rich User Interfaces and Flexible Access Methods
The IDM-120P Integrated Service Cross-Connect Multiplexer features an independent user module design, offering a variety of voice and data interfaces, including 64K Co-directional, V.24/V.28 (RS232/RS485), V.35 (n×64K), 10Base-T, polarity reversal and Caller ID telephones (FXO, FXS), Magneto, 2100Hz carrier Magneto, hotline, carrier, EM 2/4-wire audio, high-fidelity audio, baseband trunk interface card, No.1 signaling card, telephone switching card, and over 30 other user interfaces. These can be flexibly changed according to user requirements. The high-capacity, highly integrated design meets diverse user needs.
◆ Two-Level Timeslot Cross-Connect Functionality
Built-in 128-timeslot cross-connect matrix. It enables data and signaling cross-connection between user-to-user, user-to-line, and line-to-line. Therefore, this unit can also serve as a timeslot cross-connect device for 4 E1 links.
◆ Multiple Clock Modes
Can be configured as master clock, external clock, line clock, or user clock. It can be set as a switch interface or user interface, compatible with both central office and remote end configurations.
◆ Flexible Networking Capability
Provides E1 line transmission and reception in four directions. It can be used in conjunction with the IDM-240 series, IDM-120 series, IDM-30 series, and IDM-mini series. Users can freely choose based on different capacity requirements and application scenarios, offering flexible, economical, and reliable networking.
◆ Supports U-interface Trunk Transmission Card.
This card utilizes 2B1Q transmission coding over twisted pair to transmit services from V.35, 10BASE-T, V.24, X.21, and 64K Co-directional cards over distances of 5 to 7 kilometers on twisted pair cables.
◆ Network Management Functionality
The IDM-120P Integrated Service Cross-Connect Multiplexer features concise and comprehensive network management capabilities. It supports device configuration, query, and fault statistics management. The network management interface is available in both RS232 and RS485 formats. When using RS485, multiple devices can be daisy-chained simultaneously, and it also provides rack alarm output.
◆ Comprehensive Monitoring and Alarm Functions
The IDM-120P Integrated Service Cross-Connect Multiplexer can issue audible alarms when the E1 status changes; front panel LEDs display specific alarm states; the device can also output rack alarm information; the network management system can monitor device status at any time.
◆ Dual Power Supply and Dual Ringing Generator Redundancy
The IDM-120P Integrated Service Cross-Connect Multiplexer is equipped with dual power supply and dual ringing generator modules. The power supply operates in half-power mode, extending its service life. Additionally, if one module fails, the equipment continues to operate normally.
Typical Applications:
- Dedicated line access for voice, data, and video surveillance in power, public security, financial, and educational systems
- Broadband and narrowband integrated service access for residential communities / intelligent buildings
- Extension of data networks for telecommunications, Netcom, and Unicom operators
For more details, please contact: 010-51668966



