Model 5601MSC
Model 5601MSC Master SPG/Master Clock System
Page - 60
Revision 2.2
INSTALLATION
3.1.5. Serial Port Connection
The COM connector is a 9-pin female 'D' connector for RS-232 serial communications. This port is
configured for a ‘straight through’ RS-232 connection to a PC COM port and can be used for uploading
firmware to the unit. Table 3-3 shows the pinout of the serial port in its default RS-232 DCE
configuration. See section 5.2 for information on upgrading the firmware in the unit.
Pin #
Name
Description
1
2
TxD
RS-232 Transmit Output
3
RxD
RS-232 Receive Input
4
5
Signal Gnd
RS-232 Signal Ground
6
7
RTS
RS-232 RTS Input
8
CTS
RS-232 CTS Output
9
Table 3-3: COM Port Pin Definitions
3.1.6. GPS Connection
A 9-pin female 'D' connector for connecting the optional GPS receiver (GP option). Table 3-4 shows the
pinout of the port. See section 3.5 for information about mounting and connecting the GPS receiver.
Pin #
Name
Description
1
GND
Chassis ground
2
Tx-
Transmit A (Tx-) Output
3
Rx+
Receive B (Rx+) Input
4
PPS+
1 PPS + Input
5
+VDC
+ 12 Volts DC out to supply GPS receiver
6
PPS-
1 PPS - Input
7
Tx+
Transmit B (Tx+) Output
8
Rx-
Receive A (Rx-) Input
9
GND
Chassis ground
Table 3-4: GPS Serial Port Pin Definitions
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Содержание 5601MSC
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