HP HPE G2 Series User Manual page 111

Switched, and Metered & Switched Power Distribution Units are designed to collect a maximum of eight
environmental sensor measurements per PDU. For example, the Environmental 3-temperature + 1-humidity
sensor (P9T02A) collects four sensor measurements. See the table for the number of sensor measurements
collected from each environmental sensor.
All HPE G2 Series Metered, Switched, and Metered & Switched Power Distribution Units have two physical
sensor ports, and each PDU can collect a total of eight sensor measurements (or readings). For example, if a
PDU has an Open/Close door sensor (P9T03A) and an Environmental 3-temperature + 1-humidity sensor
(P9T02A) connected, both physical sensor ports are used with a total of five sensor measurements recorded.
Up to six physical sensors can be supported per PDU with the addition of the optional sensor port hub
(P9T07A).
Figure 6: Sensor Ports for vertical PDU
Connecting and configuring optional hardware 111