1. 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-Mounted Telephone Optical Terminal

1.3.1. IDM-120N, IDM-120N-GP, IDM-360ME, IDM-360GP, IDM-MUX300

2. By Fiber Transmission Bandwidth Technology

2.1. Optical Cat Telephone Optical Terminal (Only 1 E1 bandwidth on 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, E1 interface, and telephone interfaces)

2.2.1. IDM-120PN, IDM-30N, IDM-30AN, IDM-120N, IDM-360ME, etc.

2.3. PDH 1G Telephone Optical Terminal (Provides one or more physically isolated 1G Ethernet ports, E1 interface, 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, various user access types

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3. By Transmission Line Protection Technology

3.1. Single Fiber Group Telephone Optical Terminal

3.1.1. All optical terminals can use a single fiber group 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 Group 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. Self-healing Fiber 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. By Central Office Access Method

4.1. Point-to-Point Telephone Optical Terminal

4.2. Point-to-Multipoint Telephone Optical Terminal

4.3. Telephone Optical Terminal Interoperable with Different Manufacturers via DXC Timeslot Cross-connect Equipment

4.3.1. IDM-30N, IDM-MAP4E1 (Telephone signaling bits configurable via network management)

4.4. Telephone Optical Terminal Using NO.7 Signaling and PRI Signaling for Central Office Number Allocation

4.4.1. IDM-G3CP-Mserver

4.5. Central-end Devices with Telephone Dispatch Functionality

4.5.1. M3000, M9000 Integrated Dispatch Switch can directly connect to remote IDM-NTD421 and IDM-GTD442

4.5.2. IDM-G3CP Integrated Dispatch Switch can interoperate with remote IDM-OMP3500, IDM-MUX Series optical terminals, etc.

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5. By Transmission Method

5.1. TDM Transmission Method

5.1.1. PDH Transmission Telephone Optical Terminal

· IDM OMP 4E1 Telephone Optical Terminal

5.1.2. SDH Transmission Telephone Optical Terminal

· IDM TP16 SDH Telephone Optical Terminal, IDM MUX30/60/180 SDH Telephone Optical Terminal

5.1.3. E1 Multiplexer, PCM Multiplexing Equipment

· IDM MAP4E1 PCM Multiplexing Equipment

5.1.4. DXC High-capacity Full Timeslot Non-blocking Cross-connect Equipment

· IDM G3CP

5.2. IP Packet Transmission via IoT Protocol

5.2.1. TDM over IP Pseudo-line Transmission Equipment, Reverse Bridge

· IDM TOP 2E1/4E1/8E1 Pseudo-line Emulator

5.2.2. IP Fiber Ethernet Telephone Optical Terminal

· IDM OptVoice365-8 Network Telephone Optical Terminal

· IDM OptHiFi86 High-fidelity Broadcasting Intercom Device

5.2.3. IP Network Telephone Multiplexing Equipment

· IDM Voice365-4 Network Telephone Multiplexing Equipment

5.2.4. IP Network Intercom Communication Device

· IDM Voice365 Desktop Intercom Terminal

5.2.5. POE HIFI86 High-fidelity Broadcasting Intercom Device

5.2.6. Telephone Intercom, Broadcasting Intercom Alarm Handling Dispatch APP

5.2.7. Digital Audio Processing Matrix

· Voice Conference System (Digital Voice Activity Detection VAD, Digital Audio Overlay, AGC Digital Audio Automatic Gain Control System)

· Digital Audio Processor: Voice Phase Shifting Output, Voice Band Segmentation Output, Band-specific Volume Adjustment, Stereo Channel Separation

· Digital Mixing Console: Multi-channel Volume Control, Output Enable Control, Multi-channel Overlay Output, Automatic Howling Suppression

5.3. SIP Protocol IP Packet Transmission Method

5.3.1. IDM G3server High-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

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6. 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

· IDM-MUX Series

6.2.2. Ultra-wideband PDH Transmission Technology

· IDM-OMP3500

6.3. Armed Police Telephone Optical Terminal

6.3.1. Broadband Fiber Self-healing Ring Network Protection with Multiple Physically Isolated Ethernet Ports

· IDM-GTD442

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. Firefighting Intercom Optical Terminal

6.7. Airport Navigation Equipment Dual-SDH Ring Network Redundant Signal Source High-reliability Automatic Switching Equipment