GE T1000 Technical Manual page 22

GE Reason Switches
22

IEEE 1588v2 compliant (Precision Time Protocol – PTP) at all ports (except on
S2020);

PTP operation as Transparent Clock (TC, P2P or E2E delay mechanism
calculation) or Boundary Clock (BC);

USB 2.0 communication port for local configuration;

Dry-contact relay for external signalization failsafe alarm.
Chapter 1 – Introduction
REASON SWITCHES-TM-EN-3