DETAILED CASE AND MODULE DESCRIPTION
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8-10
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version: B.1
Table 8-4 CPU III Indicators, Controls, and Connectors
Item
Name
Function
Displays
4-character display
Used with the SEL and NAV push buttons
to provide a maintainer interface.
Controls
2-Push Button
Select/Navigate
Select (SEL) button steps through each
menu
The Navigate (NAV) button steps through
each submenu of the selected menu.
Indicators
16 LEDs (red)
See Figure 8-5
Connectors
RS-232 (DTE)
Serial Port (DB-9)
RS-232 (DTE) is used to interface the CPU
III Communication Processor externally to
other modules in the GCP chassis to
program the modules
LAPTOP Ethernet
(RJ-45)
RJ-45 Ethernet port used to interface the
CPU Vital Communication Processor with a
laptop / personal computer. Provides
access to external communication
configuration files via the Web User
Interface (Web UI)