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Chapter 1. General Information
1.5.4 Connecting the I/O Port
The connector furthest from the hinge of the top compartment cover (see Figure 5 on page 13) is an I/O port. This port serves a dual role:
•
Serial port pins - these are used strictly for factory service diagnostics.
•
Sync & Alarm pins - these signals are accessible to the user via a special optional cable.
To use this connector you must order the optional USM Go cable, which is available as P/N 022-510-032. The pin designations for
connecting the open end of this cable are listed in Table 1 below:
16
Table 1: I/O Connector Pin Assignments
Pin #
Color
1
Brown
2
Red
3
Orange
4
Yellow
5
Green
6
Blue
7
Purple
Signal
+5V
SAP
Alarm
RS232 CTS
RS232 TX
RS232 RX
GND
USM Go Operator's Manual
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