General Description
Copyright © 2007-2018 Eaton Corporation. All Rights Reserved.
IPN 997-00012-03 B2 Issue B2 July 2018
5
Connections
The following diagram shows the connections between the SC300, the I/O board, the other dc
power system components and external devices, for the IOBGP-00. Other I/O board options have
additional digital inputs, outputs, and an extra LVD.
1.
SC300 system controller
2.
I/O board (IOBGP-00/01 shown)
3.
Voltage feed module
4.
USB communications
5.
Ethernet communications
6.
RS-232 / RS-485 communications
7.
Digital relay outputs to external devices and/or
alarm indication system
8.
Digital inputs from external voltage-free
switches or relay contacts
9.
Connection to additional I/O board(s) and/or
SiteSure-3G I/O module(s)
10. Connection to dc common bus
11. Connection to dc live bus
12. Communications to rectifiers
13. DC power system digital inputs (Load Fuse
Fail, Battery Fuse Fail, AC Distribution Fan Fail,
AC Distribution MOV Fail)
14. Connections for battery mid-points / quarter
points (4)
15. Connection for temperature sensors (2)
16. Connection for current sensors (3)
17. Connection for LVD contactor and auxiliary
switch
18. Connection for LVD contactor and auxiliary
switch
19. Bus voltage sense and LVD power connections
20. I/O and system controller power and RXP
comms connections
For connector pin-outs see details on page 138. For input and output specifications see details on
page 129.