Hardware Overview
LD900 Installation and Oper ations M anual
16
2.3.2.1
Serial Ports
The LD900 has three serial ports: COM1, COM2 and COM3, accessible via 9 pin D-Type connectors and a 15-
pin D-Type AUX serial port. Refer to the
section for more details.
Port
RS-232
RS-422
Galvanically
Isolated
Flow
Control
COM1
Yes
Yes
Yes
No
COM2
Yes
Yes
Yes
No
COM3
Yes
Yes
Yes
No
2.3.2.2
1PPS Output
LD900 and LD900M models are capable of outputting of
(one pulse per second) signal, synced to
GPS time, which can be used by external equipment for accurate time synchronisation. The PPS
voltage with no load is 8V.
2.3.2.3
Ethernet
The LD900 has two RJ45 sockets that support Ethernet (10Base-T/100Base-TX) for configuration and interfacing
to vessel and survey systems. Both Ethernet ports support IPv4 Internet layer and TCP/IP transport.
LAN1 of the LD900 is used for data communications and is shipped with a factory default IP address of
192.168.2.91. Connecting systems should be configured to use the same IP subnet. If the LD900 needs to be
conf igured to join an existing TCP/IP network, the required steps can be found in section
.
LAN2 of the LD900 is available for connecting to Quantum and is shipped with a f actory default IP address of
192.168.2.92.
2.3.2.4
Wi-Fi
The LD900 has a Wireless Access Point that is disabled by default but can be enabled via the front panel. This is
intended for use with potential future developments.
2.3.2.5
USB Port
The USB 2.0 port is used for
.
2.3.2.6
Power
The systems power input is required to be 12 to 24V when connecting to a DC power source and 110-240 Volts
when using the approved AC/DC power supply as provided by VERIPOS:
