IDM-MUX90
IDM-MUX90
155M optical interface, 19-inch standard 1U chassis, providing 4 groups of EOS 10/100M Ethernet interfaces; 3 service slots, each slot can accommodate one 8*E1 plug-in card, totaling 24 E1 channels; or 8/10-channel 64K user service cards; or 8-port Fast Ethernet switching cards, or 720P HD video input/output interface cards.
Overview
The IDM-MUX90 is a multi-service SDH access device with SDH technology at its core and STM-1 level performance, fully compliant with ITU-T standards. This device provides users with access to multiple services and SDH optical transmission, offering two 155.52Mbps optical interfaces (A and B), four 10M/100M Ethernet interfaces, multiple groups of E1 interfaces, and 64K services. It features ITU-T G.813 standard network element timing, VC-12 cross-connection, and channel protection functions. In addition, the IDM-MUX90 is used to construct point-to-point, point-to-multipoint chain and ring transmission networks. The IDM-MUX90 multi-service access platform can be widely applied in telecommunications data services, power, banking, public security, military and other sectors for public telephone network access or dedicated line information transmission.


Product Features
The chassis structure adopts a 19-inch standard 3U chassis with plug-in card design, providing 9 3U user plug-in card slots;
Integrates SDH transmission, PBX voice switching, PCM service access, and video access technologies into the device;
Provides 252×252 VC-12 level non-blocking cross-connection between TDM interface services, supporting unidirectional, bidirectional, and broadcast services;
Single card provides 64K level cross-connection capability: 512×512 64K non-blocking cross-connection, supporting unidirectional, bidirectional, and broadcast services;
Supports 2 SFP interface STM-1 optical access, capable of forming ring, chain, star and other network topologies;
Provides 4 groups of physically isolated EoS Ethernet, each group with configurable EoS 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 Ethernet interfaces;
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;
Clock source can be selected from line clock, external clock (2Mbit/s or 2MHz), and free-running oscillation;
Provides 9 user slots, accommodating various service cards, offering PDH, E1, FXO/FXS, V.24/V.28/V.35, EM2/4, hotline telephone, magneto telephone, high-fidelity audio, X.50, 10M/100M Ethernet, and video codec cards for voice and data service access;
Standard model has a non-repeater transmission distance of 40 kilometers; custom configurations are available for distances exceeding this range;
Provides Ethernet management channels based on DCC, E1, N*64K, and TCP/IP, with SNMP simple network management protocol support;
DC -48V and AC 220V power supply, with optional DC+DC, AC+AC, AC+DC dual backup power supplies;
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 |
TX Power | -12~-6dBm | RX Sensitivity | Better than-32dBm |
E1 Interface
Line Rate | 2.048Mbps | Line Code | HDB3 |
Standard Protocol | SupportsITU-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 Frequency Range | 300Hz~3400Hz | Compression Ratio | A-law per ITU G.711 |
Impedance | Three-element compound impedance200Ω+560Ω//0.1μF | Loop Current | 20mA/channel |
Co-directional 64K interface
Line Code | G.703 Standard | Line Rate | 64Kbps |
Impedance | Balanced120Ω | Fully compliant withITU G.703 Recommendation | |
EM2/4 Line Interface
Audio Range | 300Hz~3400Hz | Impedance | Balanced600Ω |
Companding Law | A-law per ITU G.711 | Return Loss | ≥18dB |
Magnetic Ring Interface
Audio Frequency Range | 300Hz~3400Hz | Impedance | Balanced600Ω |
Companding Law | A-law per ITU G.711 | Return Loss | ≥18dB |
V.24 Interface
Transmission Rate | Asynchronous≤9600bps; Synchronous64Kbps | Electrical Characteristics | Compliant withCCITT V.28Protocol |
V.35 Interface
Interface Type | RJ-45 | Electrical Characteristics | Compliant withITU-T V.35Recommendation |
Transmission Rate | n×64Kbps(n=0–31) | Terminal Interface | Compliant withISO2593Specification |
Power Supply and Power Consumption
Power Supply Mode | AC220V/DC-48V | Total Power Consumption | ≤90W |
Environmental Conditions
Operating Temperature | -20oC ~+50oC | Relative Humidity | 0~95% (non-condensing) |
Product Dimensions
Length×Depth×Height | 482×309×132(mm) |
Application Example 1

Figure 2 Star Network Application Diagram
The IDM MUX90 can form a star network with other SDH devices to provide users with telephone, data, IP, and video services.
Application Example 2

Figure 3 Ring Network Application Diagram
The IDM MUX90 can form a ring network, utilizing the 1+1 channel protection mechanism to ensure reliable communication of telephone, data, IP, and video services to users.
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