Expansion

The Interceptor Carrier Board supports expansion via two FFC (Flat Flexible Cable) connectors for adding Interceptor PoE Boards.

PoE Expansion Overview

What You’ll Need

• Interceptor PoE Board(s)
• 40-pin FFC cable(s) (included with PoE board)
• VOITA 48Vdc Power Converter
• ATX PSU with adequate 12V capacity

Installing PoE Boards

Step 1: Prepare the FFC Connectors

1. Locate J9 (and J10 for dual configuration) on the carrier board
2. Pull the brown locking clips outward gently - they should pivot open

Step 2: Connect the FFC Cable

1. Hold the FFC cable with the blue reinforcement tape facing up (toward the clips)
2. Insert the cable contacts into the connector
3. Push the locking clips inward to secure the cable
4. Verify the cable is seated evenly - no contacts should be visible

Step 3: Install Power Converter

The PoE boards require 48V DC power, which is generated from your ATX PSU’s 12V rail using the VOITA boost converter.

1. Connect the VOITA 48Vdc Power Converter to the ATX PSU’s CPU connector (4+4 pin)
2. Route the 48V output cable to the PoE board’s terminal block (J1 on PoE board)
3. Secure all connections

VOITA Converter Specifications:

• Input: 12V DC (from ATX PSU)
• Output: 48V DC (for PoE)
• Ensure adequate 12V current capacity on your PSU

Step 4: Verify Connections

Before powering on:

• FFC cables are fully seated and locked
• Power converter is connected to PSU and PoE board
• No cables are pinched or stressed

Port Numbering

When connected, PoE ports are numbered as follows:

Power Budget

Each PoE+ port can deliver up to 30W per IEEE 802.3at. Plan your power budget:

Software Configuration

After physical installation, the PoE ports are managed via software:

• OS Requirement: exaviz OS image dated 2025-05-01 or newer
• Control Interface: /proc/pse
• Driver: ip808ar

See PoE Control for detailed software commands.

Troubleshooting

PoE board not detected

1. Check FFC cable is properly seated
2. Verify 48V power is connected
3. Check OS version supports PoE (2025-05-01 or newer)

Intermittent port failures

1. Reseat FFC cables
2. Check for loose terminal block connections
3. Verify PSU 12V rail is stable under load

Power delivery issues

1. Check total power budget
2. Verify VOITA converter output voltage
3. Try different ports to isolate faulty hardware

Next Steps

• Interceptor PoE Board Documentation
• PoE Control Commands
• Software Downloads

Last modified December 30, 2025