Electro-Voice 250 Communication Wiring, Using the Nexus External Displays, Nexus Time-of-Use

Chapter 5: Communication Wiring
5.1: Communication Overview	. . 5-1
5.2: RS-232 Connection-Nexus Meter to a Computer	. . 5-5
5.3: RS-485 Wiring Fundamentals (with RT Explanation)	. . 5-5
5.4: RS-485 Connection- Nexus Meter to a Computer or PLC	. . 5-8
5.5: RJ-11 (Telephone Line) Connection- Nexus with Internal Modem Option to PC	. . 5-8
5.6: RJ-45 Connection- Nexus with Internal Network Option to multiple PC’s . . .	. . 5-8
5.7: RS-485 Connection- Nexus to an RS-485 Master (Unicom or Modem Manager)	. . 5-9
5.7.1: Using the Unicom 2500	. . 5-9
5.8: RS-485 Connectiion- Nexus Meter to P40N, P41N, P43N External Display . .	. 5-11
5.9: RS-485 Connectiion- Nexus Meter to P60N External Display	. 5-12
5.10: Communication Ports on the Nexus I/O Modules	. 5-13
5.11: RS-485 Connection—Nexus Meter to Nexus I/O Modules	. 5-14
5.12: Steps to Determine Power Needed	. 5-15
5.13: I/O Modules’ Factory Settings and VA Ratings	. 5-15
5.14: Linking Multiple Nexus Devices in Series	. 5-16
5.15: Networking Groups of Nexus Meters	. 5-17
5.16: Remote Communication Overview	. 5-18
5.17: Remote Communication- RS-232	. 5-21
5.18: Remote Communication- RS-485	. 5-21
5.19: Programming Modems for Remote Communication	. 5-22
5.20: Selected Modem Strings	. 5-23
5.21: High Speed Inputs Connection	. 5-23
5.22: Five Modes of Time Synchronization	. 5-24
5.23: IRIG-B Connections	. 5-25
Chapter 6: Using the Nexus External Displays
6.1: Overview	. . 6-1
6.2: Nexus P40N, P41N, P43N LED External Display	. . 6-1
6.2.1: Connect Multiple Displays	. . 6-2
6.2.2: Nexus P40N Modes	. . 6-2
6.3: Dynamic Readings Mode	. . 6-3
6.4: Navigational Map of Dynamic Readings Mode	. . 6-5
6.5: Nexus Information Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.6: Navigational Map of Nexus Information Mode	. . 6-7
6.7: Display Features Mode	. . 6-8
6.8: Navigational Map of Display Features Mode	. . 6-9
6.9: Nexus P60N Touch Screen External Display	. 6-10
6.10: Navigational Map for P60N Touch Screen External Display	. 6-18
Chapter 7: Transformer Loss Compensation
7.1: Introduction	. . 7-1
7.2: Nexus 1250/1252 Transformer Loss Compensation	. . 7-3
7.2.1: Loss Compensation in Three Element Installations	. . 7-4
7.2.1.1: Three Element Loss Compensation Worksheet	. . 7-5
Chapter 8: Nexus Time-of-Use
8.1: Introduction	. . 8-1
8.2: The Nexus TOU Calendar	. . 8-1

Electro Industries/GaugeTech Doc # E107706 V1.25 vi