Figure 1. Main components inside CAB100A, PDT101 model with serial port server and 24 V DC power supply 1 Mounting clamp for DL4000 data logger 2 DL4000 data logger 3 PDT101 transmitters (4 pcs) 4 Cover plate 5 24 V DC fuses T2.5A, 5 × 20 mm (2 pcs) 6 100 – 240 V AC mains input and grounding point (under cover plate) 7 Circuit breaker and power supply module 8 Grounding terminal block 9 Serial port server 10 Mounting clamp for serial port server Figure 2. Main components inside CAB100A, PDT101 model with vNet PoE 1 PDT101 transmitters (4 pcs) 2 vNet PoE data logger interface 3 DL4000 data logger 4 Protective label. Remove before installation. 5 Grounding terminal block Figure 3. Main components inside CAB100B, mixed model with PDT101s, analog input channels, and safety barriers 1 Cable duct for intrinsically safe connections 2 Safety barriers (8 pcs) 3 Terminal block for analog input channels 4 Holders for tubing (3 pcs) 5 PDT101 transmitters (4 pcs) 6 DL4000 data loggers (6 pcs) 7 Serial port servers (2 pcs) 8 Ethernet switch 9 24 V DC power block 10 24 V DC fuses T2.5A, 5 × 20 mm (2 pcs) 11 Cover plate 12 Circuit breaker and power supply module 13 100 – 240 V AC mains input (under cover plate) 14 Cable strain relief 15 Grounding terminal block 16 Partition plate separating intrinsically safe and non-intrinsically safe connections