1 CAN high
CAN bus A (for future use)
2 CAN cable shield
3 CAN low
4 CAN high
CAN bus B (for future use) 5 CAN cable shield
6 CAN low
SD card External memory
4.5.2 PCM3.1 Ethernet connections
Ethernet port number
Position Recommended default connections
1 Top of rack, back port Previous controller in the DEIF network*
2 Top of rack, front port Next controller in the DEIF network
3 Front of rack, on the module faceplate Service PC
4 Bottom of rack, front port Display unit*
5 Bottom of rack, back port
• DEIF network
• SCADA
• AMS
• Modbus TCP/IP
INSTALLATION INSTRUCTIONS 4189340909I UK Page 41 of 144