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Intelligent System Controller
EOL
Termination
Required
Single Reader
Interface Module
0 1
2 3
4 5
6 7
8 9
*
#
EOL Termination
32 Downstream
Devices
Total
Downstream Communications
• Four 2-wire ports
• Two 4-wire ports
• Combination 2 and 4 wire ports
RS-485
Multi-drop
2 or 4 wire
Dual Reader
Interface Module
0 1
2 3
0 1
4 5
2 3
6 7
4 5
8 9
6 7
*
#
8 9
*
#
Hardware Installation Guide
EOL
Input/Output
Termination
Control
Module(s)
Required
revision 7 —
277
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