Fig. 11 - Microboard Serial Data Communications Ports - York MAXE OPTIVIEW YK Service Instructions Manual

TX RX
CR3 CR2
R
MICRO
TX RX
CR12 CR13
R
TX RX
CR16 CR11
R
TX RX
UART CR15 CR14
R
TX RX
CR9 CR10
R
NOTES:
1. Microboard Program Jumper JP27 determines whether COM 4A or 4B can be used. 1 & 2 - 4A, 2 & 3, 4B. Refer to Table 1.
2. J15-4 Loop-Around Test IN. J15-5 Loop-Around Test OUT. Re fer to Fig. 70 for details.
FIG. 11 – MICROBOARD SERIAL DATA COM MU NI CA TIONS PORTS
YORK INTERNATIONAL
G
G
3
JP27
2 1
G
G
G
OPTO-COUPLE
RS-232
TX
RX
COM 1
DTR
DSR
COM 4B
GTX
(NOTE 1)
GRX
RS-485
+
COM 4A
--
(NOTE 1)
+ 5VDC
GND
SHIELD
RS-232
DCD
DSR
RX
RTS
COM 2
TX
CTS
DTR
RS-485
+
--
COM 3 + 5VDC
GND
SHIELD
TX
RX
COM 5
COMMON
NOTE 2
NOTE 2
FORM 160.54-M1(503)
J2
4
PRINTER
3
5
2
7
MICRO-
6
GATEWAY
8
9
J11
3
MULTI-UNIT
2
COMMS
1
4
5
J13
1
2
3
NOT USED
4
5
6
7
GND
9
J12
OPTIONAL
3
2 I/O
1
(HOT GAS
4
BYPASS)
5
VARIABLE
J15
SPEED
1
DRIVE
2
ADAPTIVE
3
4
CAPACITY
5
CONTROL
6
BOARD
OR
MOD "B" SOLID
STATE STARTER
LD07778
3
35