Service Manual
6.2.13 GPS (Reserved)
The system can obtain precise clock signal and related GPS data from the GPS module. The baseband
board connects with the GPS module via J108 and J109. J109 provides GPS module with 5V power
supply. The GPS module provides precise 19.2MHz clock source to exciter board through XS2. See the
following figure:
BASEBAND
J109
GPIO63˄E18˅
UART3.RX˄K19˅
˄TX OMAP U102˅
J108
5V
GPS-LOCK
TX
GPS
XP3
XS2
XP4
EXCITER
19.2MHz
Figure 6-
20 GPS Module Connection Block Diagram
The GPS module adopt
s RS-232 port (baud rate: 9600BPS; 8 data bits; 1 stop bit; no parity check).
Definitions of GPS module are shown in table below:
Pin No. Name Description
1 GPS-LOCKED GPS RX status
2NC
3NC
4NC
5NC
6NC
7NC
8NC
9 1PPS GPS pulse output
10 NC
Table 6-3 GPS Module Definitions
20
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