HP Performance-Optimized Datacenter, 6 m (20 ft) User Guide

Control and power panels 22
Item Component Description
1 ASSD smoke detection system
Contains controls and indicators for the smoke detection
system
2 EPO relays Contains controls for the EPO function
3 Transducer and circuit breakers Contains signal transducers and protection circuit breakers
4 ECS system ECS controller for the fan speed controller and indicator
5 Power monitoring
6 Current transducers
7 Redundant fan relays Redundant fan relays
8 Fan speed relays Speed control relays for the fan control
9 Bus selector relays Change over relays for the control power
10 Back up batteries Backup batteries for the security system