Technical specifications

PRWH DC Power Board (for ZXA10 OLT)

Product Model: PRWH

Product Type: -48V DC Power Interface Board / Power Supply Module

Compatible Platforms: ZXA10 C300, C350, C320 OLT Chassis

 

 

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1. Product Overview

The PRWH is a high-efficiency, carrier-grade DC power interface board designed for ZXA10 C300/C350/C320 OLT chassis. It provides stable -48V/-60V DC power input, power distribution, filtering, protection, and real-time monitoring for all service boards, control modules, and system components. Featuring a compact design, hot-swappable capability, and 1+1 power redundancy, it ensures reliable and uninterrupted power for FTTH, FTTB, and enterprise optical access networks.

 

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2. Key Specifications

Electrical Parameters

• Input Voltage: -48V DC ~ -60V DC (telecom standard)
• Max Input Current: 40A (high-power capacity)
• Power Consumption (Self): 5W (low standby power)
• Input Interface: Standard DC power terminal (support for battery backup)
• Battery Interface: Integrated BAT+/BAT- terminals for external storage battery connection
• Temperature Sensor Interface: For battery temperature compensation (default 25°C without sensor)

Physical & Mechanical

• Dimensions (H × W × D): 197.75 × 25 × 225 mm
• Weight: 0.36 kg (ultra-lightweight)
• Mounting: Horizontal installation in OLT chassis slots
  • C300/C350: Slots 11/12
  • C320: Slots 0/1
• Cooling: Forced air cooling (chassis fan)
• Hot-Swappable: Yes (online replacement without service interruption)

Interfaces & Indicators

• PWR: Main DC power input interface
• COM/TST1: Debug/test RJ45 interface
• TST2: Reserved test interface
• LED Indicators:
  • RUN (Green): Slow blink (normal operation); Solid (self-test OK); Off (power off/fault)
  • ALM (Red): On (hardware fault); Slow blink (wrong slot/abnormality)

Protection Features

• Over-Voltage Protection (OVP)
• Under-Voltage Protection (UVP)
• Power Input Interruption Alarm & Protection
• Over-Current & Short-Circuit Protection
• Surge/Lightning Protection
• Reverse Polarity Protection

System Features

• Redundancy Mode: 1+1 power redundancy (dual PRWH boards)
• Load Balance: Automatic load sharing when dual inputs are equal
• Power Monitoring: Real-time voltage, current, power consumption detection
• Alarm Functions: Input abnormality, fault, and temperature alarms
• Control Interfaces: 2 × RJ45 reserved for management/test

Environmental Specifications

• Operating Temperature: -40°C ~ +65°C
• Storage Temperature: -40°C ~ +85°C
• Humidity: 5% ~ 95% (non-condensing)
• Altitude: Up to 4,000 m

 

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3. Core Features

• High Power Density: 40A max current for high-capacity OLT deployments.
• Carrier-Grade Reliability: Full electrical protections, redundant design, and industrial-grade components.
• Smart Power Management: Real-time monitoring, alarm, and battery temperature compensation.
• Flexible Deployment: Compatible with ZXA10 C300/C350/C320 chassis.
• Easy Maintenance: Hot-swappable design for zero-downtime replacement.
• Compact & Lightweight: Space-saving horizontal installation, minimal chassis footprint.
• Low Power Loss: Only 5W self-consumption, high energy efficiency.

 

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4. Typical Applications

• ZXA10 C300/C350/C320 OLT main power supply
• Central office (CO) fiber-optic access equipment
• FTTH/FTTB triple-play service networks
• Enterprise/campus high-density optical networks
• Carrier-grade redundant DC power systems
• Battery-backed telecom power environments