If the Red and Yellow LEDs are both on, check if the AC input has dropped below 85V. The module will automatically restart once the voltage exceeds 90V.
When you open the ZXD 3000 package (2021 production batch), verify the contents:
“Regular calibration and clean power are the two most important factors for years of trouble-free service from your ZXD 3000.”
Official product documents and software updates can be checked directly on the ZTE Support Portal installation step from this manual? zxd 3000 user manual 2021
-40°C to +75°C (Output power derates above 55°C) Storage Temperature: -40°C to +85°C Relative Humidity: 5% to 95% (non-condensing) Mechanical Installation and Hot-Swapping
Gently insert the ZXD3000 module into the designated slot until the rear connector securely engages with the subrack backplane.
The is a high-performance, high-efficiency switching rectifier module designed for modern communication systems . As of 2021, this module remains a critical component in various ZTE DC power supply systems (e.g., ZXDU68 W201, ZXDU68 B301), responsible for converting AC mains to reliable DC power (53.5V, 3000W). If the Red and Yellow LEDs are both
Check if another rectifier on the bus bar is generating excessively high voltage. Remove the faulty module and cycle the AC input breaker to clear the latching OVP circuit.
According to the ZXD3000 (V5.5) User Manual , the front panel includes several critical monitoring tools:
Ensure the AC distribution panel feeding the rectifier rack is switched off before performing structural rack wiring. -40°C to +75°C (Output power derates above 55°C)
SSR control: B3 (+) to SSR input (+), B4 (-) to SSR input (-) Relay (resistive load max 3A): B1 (COM) → heater contactor coil, B2 (NO) → line supply.
The ZXD 3000 user manual 2021 can be downloaded from the manufacturer's website or other online sources. To download the manual, follow these steps:
If the yellow or red LED is illuminated, the table below will help diagnose the issue.
The top line of the LCD now shows real-time: Temp: 38C | RPM: 1450 | Job: IDLE