Edwards 4-CPU — Central Processing Module for the EST4 life safety platform.The 4-CPU pulls data from the local rail modules in real time and is the node's link for network communication, event logging, audio control and central-station reporting. EST4 networks have no master: each node is a peer, self-configuring over IPv6, and the pluggable SFP controllers let one card serve copper, CAT5 or fiber. 211 mA at 24 Vdc 20,000 event history plus 10,000-event History Freeze Two SFP slots for hot-swappable network controllers One USB Type A host port, one USB Type B device port Up to 19 additional local rail modules per node Mounts in the first two rail spaces of the upper 3-CHAS7 chassis 32 to 120°F (0 to 49°C), 0 to 93% RH noncondensing UL, ULC, FM, CSFM certified; 0.95 lb This is an EST4 module and will not serve an EST3 panel — the EST3 processor is the 3-CPU3, a different card. SFP network controllers, the 4-COMREL relay module and the 4-AUDTELS audio/telephone riser are ordered separately. DocumentsEST4 4-CPU Central Processing Unit — Data Sheet (PDF) FAQWhich system is the 4-CPU for?The EST4 life safety platform. Each 4-CPU controls one node and up to 19 additional local rail modules, and nodes network as peers with no master.What network media does it support?Two SFP slots accept network controllers for twisted pair, CAT5, single-mode or multimode fiber, in any combination.How much event history does it keep?A 20,000 event history, plus a 10,000 event History Freeze for locked events kept for investigation.What options plug into it?The 4-COMREL common relay module (Form C, 30 Vdc at 1 A), the 4-AUDTELS audio and telephone riser module and an optional USB hub with RS-232 port.
