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89000004-101
KI 300 Installation Manual
Rev 1
Page 4-4
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Figure 4-4 Sub-D Back-Shell
All electrical connections are made on the single rear mounted 9 pin Sub-D. Connections indicated as
Reserved - Do Not Connect (DNC) should not be connected in the installation. Power and ground are
applied to pins 5 and 9 respectively.
Table 4-1: KI 300 Electrical Pin Out
PIN #
FUNCTION
TYPE
NOTES
1
Serial 1 RX
Input
Serial Bus
–
KA 310
2
Serial 1 TX
Output
Serial Bus
–
KA 310
3
Serial 0 RX
Input
Reserved
–
DNC
4
Serial 0 TX
Output
Reserved
–
DNC
5
Power +
Power
Main Power Input
6
Select
Input
Reserved
–
DNC
7
V Battery
Output
Reserved
–
DNC
8
Serial Ground
Signal
Serial Bus - Ground
9
Power Return-
Ground
Main Power Ground
Figure 4-5 Wiring Diagram
