ST950S Plus+ Installation and Commissioning Manual
Table 11. Connector Functions and Types (continued)
Description
Connector
8
Modem Power / Ancillary I/O (Top)
RS232 Modem Connection (Bottom)
Double stacked 10
way IDC
Refer to Table 3
for pinout
9
Battery Backup module connector
6 way Molex Mi
ni-Fit Jr.
10
Power Supply Connector (24VDC PSU)
12 way Molex Mi
ni-Fit Jr.
11
Serial Phase bus (
not used for Plus
+
)
10 way IDC
12
Parallel Phase Bus (
not used for Plus
+
)
34 way IDC
13
Front USB Host Port
USB Type A
14
USB Handset Port
USB Type B
15
RS232 Handset Port
25 way D type –
Female
16
Parallel Manual Panel Port
34 way IDC
3.9.2. Processor Status LEDs
3.9.2.1. Overview
The LEDs located on the front of the CPU Card and immediately behind the handset port are used to
convey controller operational states and other information to the user.
3.9.2.2. Front of CPU Card
The nine LEDs on the front of the CPU Card as shown below (viewed from the front).
Figure 18. ST950CPU Card Diagnostic LEDS
The function of each LED is described below;
WD – Watchdog (red)
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