Key facts
- Brand
- AISAI
- Model
- AMT-4E
- Category
- Other device
- Industry
- Electronics
- Documents
- 3
- Languages
- ZH · JA
- Last added
- 2011-09-24
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AMT AMT-4E PDH Optical Manual
This manual describes the AMT‑4E PDH optical system, covering its hardware architecture, electrical and optical interfaces, power requirements, and configuration options. It includes detailed wiring diagrams, connector pin‑outs, and specifications such as data rates and signal formats.
The document also explains maintenance procedures, safety precautions, and the network management subsystem (NMS) functions, providing guidance for both field technicians and system integrators. This manual is written in Chinese.
AISAI AMT-4E specifications
| Data rate | 2.048 Mbit/s |
|---|---|
| Optical channel capacity | 4 × 2048 kbit/s |
| AC mains voltage | 220 V AC |
Source: AMT AMT-4E PDH Optical Manual
All AISAI AMT-4E documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the data transmission rate of the AMT‑4E PDH?
The system transmits at 2.048 Mbit/s using HDB3 or NRZ encoding.
How many optical channels does the unit provide?
The unit provides four optical channels, each capable of 2048 kbit/s.
What do the front‑panel indicator lights mean?
The front panel has seven LEDs: PWR indicates power, E1LOS shows an E1 loss alarm, E1SYL signals E1 signal loss, CPLCS indicates optical signal loss, CPSYL signals optical signal loss, and the remaining lights indicate other status conditions.
How should I troubleshoot when the E1LOS light is on?
Check the E1 input cable for continuity, verify that the E1 port is properly connected and balanced, and ensure there are no faults in the coaxial cable or connector.
What voltage does the AMT-4E-B require for operation?
The modem operates from an AC input of 180 V to 240 V and needs DC supplies of 4.8 V and 24 V.
What are the LED indicators on the AMT-4E-B and what do they indicate?
LEDs such as PWR, LINK, WTD, WRD, LTD, LRD, OPLOS, OPSYL, PTOK, and TEST show power status, link activity, WAN/LAN status, and test functions.