Furuno FAR-2107 Series Service Manual page 378

4. The "FACTORY TEST" screen is displayed.
The checking items of the SIO are switched in sequence. If a port jumpered in Step 1
functions properly, "OK" is displayed. If not, "—" is displayed.
Test
Result
item
AIS OK / -
HDG OK / -
LOG OK / -
NAV OK / -
TRK OK / -
RS-232C OK / -
KEY IO OK / -
RF IO OK / -
1000->
ALARM 0100->
IO 0010->
0001
Test
speed
38.4 Loopback test of AIS port J611. In the test, characters of
kbps "FAR2107" are sent. If they are received, it is judged as OK.
Characters of "FAR2107" are sent from the SERIAL I/F (TD)
38.4
J621 to the HDG port J605. If they are received, it is judged as
kbps
OK.
38.4 Characters of "FAR2107" are sent from the J621: SERIAL I/F
kbps (TD) to the J607: LOG port.
38.4 Characters of "FAR2107" are sent from J619: ECDIS (TD) to
kbps J606: NAVIGATOR. If they are received, it is judged as OK.
38.4 Loopback test of TRK port. In the test, characters of "AR2107F"
kbps are sent. If they are received, it is judged as OK.
4.8 Loopback test of J601: RS-232C. In the test, characters of
kbps "FAR2107" are sent. If they are received, it is judged as OK.
19.2 The command of the test mode is sent to the control unit. If the
kbps program number comes back, it is judged as OK.
115.2 The command of the test mode is sent. If the program number
kbps comes back, it is judged as OK.
During the test, the display changes in the order of
"1000->0100->0010->0001". This change is synchronized with
the J612: EXT ALARM output (ON/OFF).
In ALARM-4 alone, ON/OFF operations are opposite to those of
ALARM-1 to 3.
1000: ALARM-1 (#1-2), 0100: ALARM-2 (#3-4),
―
0010: ALARM-3 (#5-6), 0001: ALARM-4 (#7-8),
NOTE:
The polarity of ALARM-1 to 4 (ON/OFF) depends on the
setting of "[Menu] -> 3-> 6, 7, 8, 9-> 9: ALARM OUT
POLARITY".
The setting item is not available on the IMO and A types.
6-22
Table 6.2.3 Result in Loopback Test
Description
6.2 FACTORY TEST