Telephone Optical Terminal Classification
Telephone Optical Terminal classification (telephone generally refers to voice services, such as program-controlled telephone, common battery telephone, magneto telephone, audio 2/4-wire telephone, etc.) 1. Classification by Structure 1.1. Desktop Telephone Optical Terminal 1.1.1. IDM-NT008, IDM-NT202B, IDM-NTD421, IDM-
Telephone Optical Terminal Classification
(Telephone generally refers to voice services, such as program-controlled telephone, common battery telephone, magneto telephone, audio 2/4-wire telephone, etc.)

1. Classification by Structure
1.1. Desktop Telephone Optical Terminal
1.1.1. IDM-NT008、IDM-NT202B、IDM-NTD421、IDM-GTD442
1.2. 19-inch 1U Telephone Optical Terminal
1.2.1. IDM-30N(IDM-30AN)(IDM-30EN)、IDM-MAP4E1 Series
1.3. 19-inch Rack-Mount Telephone Optical Terminal
1.3.1. IDM-120N、IDM-120N-GP、IDM-360ME、IDM-360GP、IDM-MUX300
2. Classification by Optical Fiber Transmission Bandwidth Technology
2.1. Optical Modem Telephone Optical Terminal (Only 1 E1 bandwidth on the optical fiber, long transmission distance)
2.1.1. IDM NT008 8-Channel Telephone Optical Terminal
2.2. PDH 100M Telephone Optical Terminal (Provides one or more physically isolated 100M Ethernet ports, as well as E1 interfaces and telephone interfaces)
2.2.1. IDM-120PN、IDM-30N、IDM-30AN、IDM-120N、IDM-360ME etc.
2.3. PDH Gigabit Telephone Optical Terminal (Provides one or more physically isolated Gigabit Ethernet ports, as well as E1 interfaces and telephone interfaces)
2.3.1. IDM-OMP3500,IDM-OMP5000
2.4. SDH Telephone Optical Terminal
2.4.1. IDM-MUX30、IDM-MUX90、IDM-MUX300
2.5. Multi-Service Telephone Optical Terminal
2.5.1. Multiple transmission paths, multiple user access types
3. Classification by Transmission Line Protection Technology
3.1. Single-Fiber Pair Telephone Optical Terminal
3.1.1. All optical terminals can use one fiber pair for transmission, either dual-fiber bidirectional or single-fiber bidirectional
3.2. Fiber and E1 Line Mutual Backup Telephone Optical Terminal
3.2.1. IDM-MAP4E1
3.3. Dual-Fiber Pair Transmission Mutual Backup Telephone Optical Terminal
3.3.1. IDM-OMP3500 Series、IDM-MUX Series、IDM-120N
3.4. Chain Network Telephone Optical Terminal
3.4.1. IDM-NTD421、IDM-GTD442 Series、IDM-OMP3500 Series
3.5. Optical Fiber Self-Healing Ring Network Telephone Optical Terminal
3.5.1. IDM-NTD421、IDM-GTD442 Series、IDM-MUX Series
3.6. IP Access Telephone Optical Terminal
3.6.1. IDM Voice365-8 Telephone Optical Terminal
4. Classification by Central Office Access Mode
4.1. Point-to-Point Telephone Optical Terminal
4.2. Point-to-Multipoint Telephone Optical Terminal
4.3. Telephone Optical Terminal Interconnecting with Different Manufacturers via DXC Timeslot Cross-Connect Equipment
4.3.1. IDM-30N、IDM-MAP4E1 (Telephone signaling bits can be configured via network management)
4.4. Telephone Optical Terminal Using NO.7 Signaling and PRI Signaling for Central Office Line Provisioning
4.4.1. IDM-G3CP-Mserver
4.5. Equipment with Telephone Dispatch Functionality at the Central Office End
4.5.1. M3000、M9000 Converged Dispatch Switch can directly connect to remote IDM-NTD421 and IDM-GTD442
4.5.2. IDM-G3CP Converged Dispatch Switch can interoperate with remote IDM-OMP3500、IDM-MUX Series optical terminals, etc.
5. Classification by Transmission Mode
5.1. TDM Transmission Mode
5.1.1. PDH Transmission Telephone Optical Terminal
· IDM OMP 4E1Telephone Optical Terminal
5.1.2. SDH Transmission Telephone Optical Terminal
· IDM TP16 SDH Telephone Optical Terminal、IDM MUX30/60/180 SDHTelephone Optical Terminal
5.1.3. E1 Multiplexer, PCM Multiplexing Equipment
· IDM MAP4E1 PCM Multiplexing Equipment
5.1.4. DXC Large-Capacity Full-Timeslot Non-Blocking Cross-Connect Equipment
· IDM G3CP
5.2. IoT Protocol IP Packet Transmission Mode
5.2.1. TDM over IP Pseudo-Wire Transmission Equipment, Reverse Bridge
· IDM TOP 2E1/4E1/8E1 Pseudo-Wire Emulator
5.2.2. IP Fiber Optic Ethernet Telephone Optical Terminal
· IDM OptVoice365-8 Network Telephone Optical Terminal
· IDM OptHiFi86 High-Fidelity Broadcast/Intercom Equipment
5.2.3. IP Network Telephone Multiplexing Equipment
· IDM Voice365-4 Network Telephone Multiplexing Equipment
5.2.4. IP Network Intercom Communication Equipment
· IDM Voice365 Desktop Intercom Terminal
5.2.5. POE HIFI86 High-Fidelity Broadcast/Intercom Equipment
5.2.6. Telephone Intercom, Broadcast/Intercom Alarm Processing and Dispatch APP
5.2.7. Digital Audio Processing Matrix
· Voice Conference System (Digital Voice Activity Detection VAD, Digital Audio Superposition, AGC Digital Audio Automatic Gain Control System)
· Digital Audio Processor, Voice Phase-Shift Output, Voice Frequency-Band Split Output, Voice Frequency-Band Volume Adjustment, Stereo Channel Separation
· Digital Mixing Console: Multi-Channel Volume Control, Output Enable Control, Multi-Channel Superposition Output, Automatic Howling Suppression
5.3. SIP Protocol IP Packet Transmission Mode
5.3.1. IDM G3server Large-Capacity Analog Gateway (Radio Port, Broadcast Port, Magneto Port, etc.)
5.3.2. IDM RG2000 Four-Channel Analog Gateway (Radio, Magneto, Broadcast)
5.3.3. IDM RG4000 Eight-Channel Audio Routing Dual SIP Server Registration High-Reliability Integrated Radio Gateway
6. Classification by Industry Application
6.1. Military Field Telephone Optical Terminal
6.1.1. IDM-MTP155 Integrated Access
6.2. Public Security Four-Level Network Telephone Optical Terminal
6.2.1. SDH Technology
6.2.2. Ultra-Broadband PDH Transmission Technology
6.3. Armed Police Telephone Optical Terminal
6.3.1. Broadband Fiber Self-Healing Ring Network Protection Multi Physically Isolated Ethernet Optical Terminal
6.4. Elevator Five-Party Intercom Telephone Optical Terminal
6.5. Explosion-Proof Telephone Optical Terminal
6.5.1. SDH Self-Healing Ring Network Telephone Optical Terminal
6.5.2. Broadband Fiber Self-Healing Ring Network Telephone Optical Terminal,IDM-GTD442FB
6.6. Fire Protection Intercom Optical Terminal
6.7. Airport Navigation Equipment Dual SDH Ring Network Redundant Signal Source High-Reliability Automatic Switching Equipment
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