jotron TR-2600, Operation And Installation Manual, Page: 48 / 61

82695
_Op&Ins MAN_TR2600_K 7-3
7.3 Junction Box Connector, 37 pin D-sub
7.3.1 Signal state definitions
Port 1 to 7 are RS422 with A and B lines. The idle, marking, logical 1, OFF or stop bit states are
defined by a negative voltage on line A with respect to line B.
The active, spacing, logical 0, ON or start bit states are defined by a positive voltage on line A with
respect to line B.
It should be noted that the above A with respect to B levels are inverted from the voltage
input/output requirements of standard UARTs and that many line drivers and receivers provide a
logic inversion.
Pin Nr. Name Function In/Out
1 AIS TD1-B Reserved
2 AIS TD1-A Reserved
3 AIS 1 in (B) AIS RD1-B (External GPS) In
4 AIS 1 in (A) AIS RD1-A ( --------
“---------)
In
5 AIS TD2-B Reserved
6 AIS TD2-A Reserved
7 AIS 2 in (B) AIS RD2-B In
8 AIS 2 in (A) AIS RD2-A In
9 AIS TD3-B Reserved
10 AIS TD3-A Reserved
11 AIS 3 in (B) AIS RD3-B In
12 AIS 3 in (A) AIS RD3-A In
13 AIS 4 out (B) AIS TD4-B (External Display) Out
14 AIS 4 out (A) AIS TD4-A (External Display) Out
15 AIS 4 in (B) AIS RD4-B In
16 AIS 4 in (A) AIS RD4-A In
17 AIS 5 out (B) AIS TD5-B
18 AIS 5 out (A) AIS TD5-A
19 AIS 5 in (B) AIS RD5-B In
20 AIS 5 in (A) AIS RD5-A In
21 AIS 6 out (B) AIS TD6-B Out
22 AIS 6 out (A) AIS TD6-A Out
23 AIS 6 in (B) AIS RD6-B In
24 AIS 6 in (A) AIS RD6-A In
25 AIS 7 out (B) AIS TD7-B Reserved
26 AIS 7 out (A) AIS TD7-A Reserved
27 AIS 7 in (B) AIS RD7-B (DGNSS data) In
28 AIS 7 in (A) AIS RD7-A (DGNSS data) In
29 RS-232 TX Out
30 RS-232 RX In
31 ALARM Out NC to #33
32 ALARM Out NO to #33
33 ALARM CO switch between #31 and #32
34 I/O Spare
35 Future warning for Backup Power -
36 GND Ground -
Cable screen Chassis GND -