Japan Radio Co. JAX-9B, Instruction Manual, Page: 93 / 118

Chapter 6 Connection of GPS Receiver
79
6. Chapter 6 Connection of GPS Receiver
JAX-9B can correct the internal clock automatically by receiving the time data outputted from a GPS
receiver. Connecting a GPS receiver to JAX-9B is recommended if the timer program recording is used.
Doing so will make it unnecessary to correct the time of the internal clock periodically. Even if the
backup battery in JAX-9B runs out, JAX-9B can continue normal operation by receiving the time data
outputted from the GPS receiver.
MEMO
•
The lithium battery in JAX-9B is used to back up the internal clock.
The internal clock can continue to indicate the right current time by receiving data
from the GPS receiver, even if the battery cannot back up the internal clock.
6.1 GPS Receiver Connection Interface
JAX-9B supports a connection interface as follows:
For connecting a GPS receiver, consult with the manufacturer of the GPS receiver about the data output
interface of the GPS receiver.
No. Item Specification
1 Communications I/F NMEA standards
2 Baud rate 4800bps
3 Data format NMEA standards Ver. 2.0 or following
4 Received data ZDA or RMC
The above sentence contains time data.
5 JAX-9B interface port TB102 Rx-: 7pin Rx
＋
:8pin
5 GPS Receiver interface port Consult with the manufacturer of the GPS receiver
MEMO
•
GPS receivers designed for ship use can satisfy the above interface. However, it is
required that the GPS receiver is provided with an output port connectable to JAX-9B.
If the GPS receiver has no port for connecting JAX-9B, contact a JRC marketing
office, branch, sales office or agent.