CHAPTER 2: PRODUCT DESCRIPTION PRODUCT DESCRIPTION
B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-3
2
Figure 2-1: Single-line diagram
Table 2-2: Other device functions
Function Function
Contact inputs (up to 120 per IED) Modbus communications
Contact outputs (up to 72 per IED) Modbus user map
Control pushbuttons Non-volatile latches
CyberSentry™ security Oscillography
Digital elements (48 per IED) Setting groups (6)
Direct inputs and outputs (256) Time synchronization over IRIG-B or IEEE 1588
DNP 3.0 or IEC 60870-5-104 communications Time synchronization over SNTP
Dynamic bus replica User definable displays
End fault protection User-programmable fault reports
Event recorder User-programmable LEDs
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