Furuno NX-700B Service Manual page 118

Q1. Can the FAX-5 antenna unit be used with NX-700A and B?
It can be used in terms of electric characteristics. However, since the requirements
for the Type approval of NX-700A and B include the Antenna unit NX-7H, the
FAX-5 antenna cannot be used with NX-700A and B.
Q2. Can the NX-5 antenna unit be used with NX-700A and B?
No.
Since the requirements for the Type approval of NX-700A and B include the
Antenna unit NX-7H, the NX-5 antenna cannot be used with NX-700A and B.
NX-5 is an Antenna unit dedicated for reception on 518 kHz. If the Antenna unit of
NX-5 is used, the receiver sensitivity is reduced particularly on local frequency
4209.5 kHz.
Q3. Give information on the specifications of a connectable printer.
Serial printer: 9600 bps, 8 bit data, non parity, 1 bit stop-bit, Xon/Xoff, 32 Char/line
Q4. What part should the Nav data (GPS) be connected to?
Connect the Nav data to #4(RD-A) and #5(RD-B) of J402 on NX-7001. Be sure to
make a connection to #3 (ISO GND).
Q5. What is the length of the cable between the Display unit and
the Receiver unit?
Communication between Display unit and Receiver units is achieved via RS-232C.
Since this cable includes the power supply line, the cable length differs according
to the specifications of the power supply. It is 3 m for +12 VDC power supply and
15 m for +24 VDC power supply.
Q6. When the NX-700A/B is used at an exhibition or presentation,
is it needed to connect the Antenna unit?
It is NOT necessary. Operate it in the DEMO mode. To enter this mode, select ON
in "[MENU] -> Initialize1 -> Demo Mode".
Q7. Is there any difference according to the input power (+12/24 VDC)? (3-9)
There is NO difference by the input power.
There is no need to change the fuse (2 A) on the RCV board of NX-7001. This fuse
is intended for protection against reverse connection.
Q8. The INS connection port is of the RS-485 type. How is the ON/OFF
setting of the terminating resistor performed?
The setting is performed at J9 on the CPU board of the Display unit. The plug J9 is
inserted between #1 and #2, it is set as "With termination". (Default setting)
Do not connect the INS I/O port to be connected to NX-700A and B in parallel
with other equipment and use it on its own. In this case, leave the setting of J9 at
default as "With termination".
Chapter 8. Q & A
8-1
Chapter 8. Q &A
(5-13)
(2-5)
(1-2)
(2-25)
(3-6)