IDM MUX180

PCM·📅UpdatedMay 12, 2026·✍️管理员

The IDM MUX180 Integrated Service Cross-Connect Multiplexer is a comprehensive service multiplexing platform that integrates 64K narrowband service access, PCM multiplexing, 64K timeslot cross-connection, and SDH optical transmission. The IDM MUX180 is primarily used for service access and cross-connection at the access layer of data communication networks. It features complete synchronization and timing functions, providing up to 24 E1 channels with non-blocking 64K-level cross-connection, while supporting up to 180 channels of 64K services, including telephone, magneto telephone, common battery telephone, and V.24 data services.

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I. Introduction

The IDM MUX180 is primarily used for service access and cross-connection at the access layer of data communication networks. It features complete synchronization and timing functions, providing up to 24 E1 channels with non-blocking 64K-level cross-connection, while supporting up to 180 channels of 64K services, including telephone, magneto telephone, common battery telephone, and V.24 data services.

Figure 1 Front Panel Diagram of IDM MUX180

II. Product Features

Ø Adopts 19-inch standard 3U chassis with plug-in card design; provides 17 slots for 3U user cards;

Ø Two SFP-type STM-4/1 optical interfaces, supporting SDH ring and chain topologies, with 1+1 tributary channel protection;

Ø Provides 252×252 VC-12 level non-blocking cross-connection between TDM interface services, supporting unidirectional, bidirectional, and broadcast services;

Ø Provides up to 24 E1 channels with non-blocking 64K timeslot cross-connection;

Ø Supports access of up to 180 channels of 64K timeslot services;

Ø Provides 4 groups of physically isolated EoS Ethernet, each with configurable bandwidth of N×VC12 (N=1~50); each group also provides 1 reserved extended Ethernet port; works with the 8FE card to expand the number of extended Ethernet interfaces;

Ø Provides a 5-in-1 2-wire audio card: 3U-8MVOICE; each card provides 8 channels of 2-wire audio; each 2-wire audio channel can be configured as FXO/FXS/hotline/magneto/2100Hz magneto mode;

Ø Supports insertion of radar data access card, providing 4 channels of radar data service interfaces per card, supporting synchronous and asynchronous operating modes; in synchronous mode, transmission rates support 300bps/600bps/1.2kbps/2.4kbps/4.8kbps/9.6kbps/19.2kbps/38.4kbps/57.6kbps/64kbps/115.2kbps/128kbps; in asynchronous mode, the maximum transmission rate is 38.4kbps, with automatic adaptation for rates below 38.4kbps;

Ø Clock source can be selected from line clock, external clock (2Mbit/s or 2MHz), and free-running oscillation;

Ø Provides 17 user slots, compatible with multiple service cards, supporting access of voice and data services including PDH, E1, FXO/FXS, V.24/V.28/V.35, EM2/4, hotline telephone, magneto telephone, high-fidelity audio, X.50, and 10M/100M Ethernet;

Ø Supports insertion of 3UMPCONV user optical port expansion card and WG300 signaling switching card;

Ø Standard model provides a repeaterless transmission distance of 40 kilometers; custom configurations are available for distances exceeding this range;

Ø Provides Ethernet management channels based on DCC, E1, N*64K, and TCP/IP, with SNMP simple network management protocol support;

Ø DC -48V and AC 220V power supply, with optional DC+DC, AC+AC, AC+DC dual backup power configurations;

III. Technical Specifications

Optical Interface

Interface Type	SFP	Fiber Mode	Single-mode(Multi-mode optional)
Tx/Rx Rate	155.52Mbps/155.52Mbps	Tx/Rx Wavelength	1310nm/1550nm
Output Power	-12~-6dBm	Receiver Sensitivity	Better than-32dBm
Transmission Distance	40Km, long-distance optical modules can be optionally installed for extended fiber transmission

E1 Interface

Bit Rate	2.048Mbps	Line Code	HDB3
Standard Protocol	Supports ITU-T G.703	Impedance	75Ω/120Ω
Frame Structure	PCM30/32	Signaling	Channel-Associated Signaling

Ethernet

Interface Type	RJ-45	Transmission Rate	N×VC12 (N≤50)
Standard Protocol	Supports IEEE802.3	Operating Mode	Full/Half Duplex/Auto-Negotiation

FXO, FXS Interfaces

Audio Range	300Hz~3400Hz	Compression	A-law per ITU G.711
Impedance	Three-element complex impedance 200Ω+560Ω//0.1μF	Loop Current	20mA/channel

EM2/4 Line Interface

Audio Range	300Hz~3400Hz	Impedance	Balanced600Ω
Compression Rate	ITU G.711A-law	Return Loss	≥18dB

Magnetic Ring Interface

Audio Range	300Hz~3400Hz	Impedance	Balanced600Ω
Compression Rate	ITU G.711A-law	Return Loss	≥18dB

Radar Data Interface

Operating Mode	Asynchronous Mode	Synchronous Mode
Transmission Rate	Supports a maximum transmission rate of 38.4kbps, with automatic adaptation for rates below 38.4kbps.	Supports 300bps/600bps/1.2kbps/2.4kbps/4.8kbps/9.6kbps/19.2kbps/38.4kbps/57.6kbps/64kbps/115.2kbps/128kbps.
Electrical Characteristics	Complies with CCITT V.28 protocol	Complies 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 specifications